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20 months agoMAINTAINERS: Update maintainer's email for Xilinx CAN
Vikram Garhwal [Mon, 14 Nov 2022 15:10:57 +0000 (15:10 +0000)]
MAINTAINERS: Update maintainer's email for Xilinx CAN

Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com>
Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
20 months agoMerge tag 'pull-la-20221112' of https://gitlab.com/rth7680/qemu into staging
Stefan Hajnoczi [Sat, 12 Nov 2022 14:17:06 +0000 (09:17 -0500)]
Merge tag 'pull-la-20221112' of https://gitlab.com/rth7680/qemu into staging

Fix loongarch make check-tcg failure.

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* tag 'pull-la-20221112' of https://gitlab.com/rth7680/qemu:
  hw/loongarch: Fix loongarch fdt addr confict

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
20 months agolibvduse: Avoid warning about dangerous use of strncpy()
Philippe Mathieu-Daudé [Fri, 11 Nov 2022 12:45:50 +0000 (13:45 +0100)]
libvduse: Avoid warning about dangerous use of strncpy()

GCC 8 added a -Wstringop-truncation warning:

  The -Wstringop-truncation warning added in GCC 8.0 via r254630 for
  bug 81117 is specifically intended to highlight likely unintended
  uses of the strncpy function that truncate the terminating NUL
  character from the source string.

Here the next line indeed unconditionally zeroes the last byte, but
1/ the buffer has been calloc'd, so we don't need to add an extra
byte, and 2/ we called vduse_name_is_invalid() which checked the
string length, so we can simply call strcpy().

This fixes when using gcc (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0:

  [42/666] Compiling C object subprojects/libvduse/libvduse.a.p/libvduse.c.o
  FAILED: subprojects/libvduse/libvduse.a.p/libvduse.c.o
  cc -m64 -mcx16 -Isubprojects/libvduse/libvduse.a.p -Isubprojects/libvduse -I../../subprojects/libvduse [...] -o subprojects/libvduse/libvduse.a.p/libvduse.c.o -c ../../subprojects/libvduse/libvduse.c
  In file included from /usr/include/string.h:495,
                   from ../../subprojects/libvduse/libvduse.c:24:
  In function ‘strncpy’,
      inlined from ‘vduse_dev_create’ at ../../subprojects/libvduse/libvduse.c:1312:5:
  /usr/include/x86_64-linux-gnu/bits/string_fortified.h:106:10: error: ‘__builtin_strncpy’ specified bound 256 equals destination size [-Werror=stringop-truncation]
    106 |   return __builtin___strncpy_chk (__dest, __src, __len, __bos (__dest));
        |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  cc1: all warnings being treated as errors
  ninja: build stopped: cannot make progress due to previous errors.

Fixes: d9cf16c0be ("libvduse: Replace strcpy() with strncpy()")
Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Xie Yongji <xieyongji@bytedance.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Bin Meng <bmeng@tinylab.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221111124550.35753-1-philmd@linaro.org>

20 months agohw/loongarch: Fix loongarch fdt addr confict
Song Gao [Wed, 9 Nov 2022 02:04:49 +0000 (10:04 +0800)]
hw/loongarch: Fix loongarch fdt addr confict

Fix LoongArch check-tcg error:
   TEST    hello on loongarch64
qemu-system-loongarch64: Some ROM regions are overlapping
These ROM regions might have been loaded by direct user request or by default.
They could be BIOS/firmware images, a guest kernel, initrd or some other file loaded into guest memory.
Check whether you intended to load all this guest code, and whether it has been built to load to the correct addresses.

The following two regions overlap (in the memory address space):
   hello ELF program header segment 0 (addresses 0x0000000000200000 - 0x0000000000242000)
   fdt (addresses 0x0000000000200000 - 0x0000000000300000)
make[1]: *** [Makefile:177: run-hello] Error 1

Fixes: 021836936ef ("hw/loongarch: Load FDT table into dram memory space")
Reported-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221109020449.978064-1-gaosong@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
20 months agoMerge tag 'pull-request-2022-11-11' of https://gitlab.com/thuth/qemu into staging
Stefan Hajnoczi [Fri, 11 Nov 2022 16:44:48 +0000 (11:44 -0500)]
Merge tag 'pull-request-2022-11-11' of https://gitlab.com/thuth/qemu into staging

* Fix "unused variable" warnings from Clang 15
* Allow building of guest-agent without emulators or tools
* White space clean-ups
* Fixes for typos in the documentation

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# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2022-11-11' of https://gitlab.com/thuth/qemu:
  Fix several typos in documentation (found by codespell)
  net: Replace TAB indentations with spaces
  qga: Allow building of the guest agent without system emulators or tools
  libdecnumber/dpd/decimal64: Fix compiler warning from Clang 15
  host-libusb: Remove unused variable
  qemu-img: remove unused variable
  tulip: Remove unused variable
  rtl8139: Remove unused variable

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
20 months agoMerge tag 'pull-ppc-20221111' of https://gitlab.com/danielhb/qemu into staging
Stefan Hajnoczi [Fri, 11 Nov 2022 16:44:28 +0000 (11:44 -0500)]
Merge tag 'pull-ppc-20221111' of https://gitlab.com/danielhb/qemu into staging

ppc patch queue for 2022-11-11:

Short queue with just a single pnv-phb fix from Thomas Huth.

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# Primary key fingerprint: 17EB FF99 23D0 1800 AF28  3819 3CD9 CA96 DE03 3164

* tag 'pull-ppc-20221111' of https://gitlab.com/danielhb/qemu:
  hw/pci-host/pnv_phb: Avoid quitting QEMU if hotplug of pnv-phb-root-port fails

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
20 months agoMerge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into...
Stefan Hajnoczi [Fri, 11 Nov 2022 16:44:07 +0000 (11:44 -0500)]
Merge tag 'for_upstream' of https://git./virt/kvm/mst/qemu into staging

pc,virtio: regression fixes

fixes issues from the last pull request:

unresolved symbols for taargets without acpi
typo in a comment in checkpatch
virtio buffer overflow

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu:
  virtio-net: fix for heap-buffer-overflow
  display: include dependencies explicitly
  checkpatch: typo fix

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
20 months agoFix several typos in documentation (found by codespell)
Stefan Weil [Thu, 10 Nov 2022 19:08:25 +0000 (20:08 +0100)]
Fix several typos in documentation (found by codespell)

Those typos are in files which are used to generate the QEMU manual.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20221110190825.879620-1-sw@weilnetz.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Ani Sinha <ani@anisinha.ca>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
[thuth: update sentence in can.rst as suggested by Peter]
Signed-off-by: Thomas Huth <thuth@redhat.com>
20 months agonet: Replace TAB indentations with spaces
Ahmed Abouzied [Mon, 14 Jun 2021 18:38:49 +0000 (20:38 +0200)]
net: Replace TAB indentations with spaces

Replaces TABs with spaces, making sure to have a consistent coding style
of 4 space indentations in the net subsystem.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/377
Signed-off-by: Ahmed Abouzied <email@aabouzied.com>
Message-Id: <20210614183849.20622-1-email@aabouzied.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
[thuth: Fixed mis-aligned indentation in some of the files]
Signed-off-by: Thomas Huth <thuth@redhat.com>
20 months agoqga: Allow building of the guest agent without system emulators or tools
Thomas Huth [Thu, 10 Nov 2022 08:36:26 +0000 (09:36 +0100)]
qga: Allow building of the guest agent without system emulators or tools

If configuring with "--disable-system --disable-user --enable-guest-agent"
the linking currently fails with:

qga/qemu-ga.p/commands.c.o: In function `qmp_command_info':
build/../../home/thuth/devel/qemu/qga/commands.c:70: undefined reference to `qmp_command_name'
build/../../home/thuth/devel/qemu/qga/commands.c:71: undefined reference to `qmp_command_is_enabled'
build/../../home/thuth/devel/qemu/qga/commands.c:72: undefined reference to `qmp_has_success_response'
qga/qemu-ga.p/commands.c.o: In function `qmp_guest_info':
build/../../home/thuth/devel/qemu/qga/commands.c:82: undefined reference to `qmp_for_each_command'
qga/qemu-ga.p/commands.c.o: In function `qmp_guest_exec':
build/../../home/thuth/devel/qemu/qga/commands.c:410: undefined reference to `qbase64_decode'
qga/qemu-ga.p/channel-posix.c.o: In function `ga_channel_open':
build/../../home/thuth/devel/qemu/qga/channel-posix.c:214: undefined reference to `unix_listen'
build/../../home/thuth/devel/qemu/qga/channel-posix.c:228: undefined reference to `socket_parse'
build/../../home/thuth/devel/qemu/qga/channel-posix.c:234: undefined reference to `socket_listen'
qga/qemu-ga.p/commands-posix.c.o: In function `qmp_guest_file_write':
build/../../home/thuth/devel/qemu/qga/commands-posix.c:527: undefined reference to `qbase64_decode'

Let's make sure that we also compile and link the required files if
the system emulators have not been enabled.

Message-Id: <20221110083626.31899-1-thuth@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
20 months agolibdecnumber/dpd/decimal64: Fix compiler warning from Clang 15
Thomas Huth [Thu, 10 Nov 2022 13:11:12 +0000 (14:11 +0100)]
libdecnumber/dpd/decimal64: Fix compiler warning from Clang 15

Clang 15 from Fedora 37 complains:

 ../libdecnumber/dpd/decimal64.c:620:8: error: variable 'n' set but
 not used [-Werror,-Wunused-but-set-variable]
   Int  n;                     /* output bunch counter */
        ^
 1 error generated.

Remove the unused variable to silence the compiler warning.

Message-Id: <20221110131112.104283-1-thuth@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
20 months agohost-libusb: Remove unused variable
Miroslav Rezanina [Wed, 9 Nov 2022 15:57:14 +0000 (10:57 -0500)]
host-libusb: Remove unused variable

Variable unconnected used in usb_host_auto_check function is only incremented
but never read as line where it is read was disabled since introducing the code.
This causes 'Unused but set variable' warning on Clang 15.0.1 compiler.

Removing the variable and disabled code to prevent the warning.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <00df0db69ff9167d38bac81f6d03281955bd861a.1668009030.git.mrezanin@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
20 months agoqemu-img: remove unused variable
Miroslav Rezanina [Wed, 9 Nov 2022 15:57:13 +0000 (10:57 -0500)]
qemu-img: remove unused variable

Variable block_count used in img_dd function is only incremented but never read.
This causes 'Unused but set variable' warning on Clang 15.0.1 compiler.

Removing the variable to prevent the warning.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <e86d5b57f9d13bde995c616a533b876f1fb8a527.1668009030.git.mrezanin@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
20 months agotulip: Remove unused variable
Miroslav Rezanina [Wed, 9 Nov 2022 15:57:12 +0000 (10:57 -0500)]
tulip: Remove unused variable

Variable n used in tulip_idblock_crc function is only incremented but never read.
This causes 'Unused but set variable' warning on Clang 15.0.1 compiler.

Removing the variable to prevent the warning.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <02e1560d115c208df32236df8916fed98429fda1.1668009030.git.mrezanin@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
20 months agortl8139: Remove unused variable
Miroslav Rezanina [Wed, 9 Nov 2022 15:57:11 +0000 (10:57 -0500)]
rtl8139: Remove unused variable

Variable send_count used in rtl8139_cplus_transmit_one function is only
incremented but never read. This causes 'Unused but set variable' warning
on Clang 15.0.1 compiler.

Removing the variable to prevent the warning.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <15a32dd06c492216cbf27cd3ddcbe1e9afb8d8f5.1668009030.git.mrezanin@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
20 months agohw/pci-host/pnv_phb: Avoid quitting QEMU if hotplug of pnv-phb-root-port fails
Thomas Huth [Wed, 9 Nov 2022 12:22:10 +0000 (13:22 +0100)]
hw/pci-host/pnv_phb: Avoid quitting QEMU if hotplug of pnv-phb-root-port fails

Currently QEMU terminates if you try to hotplug pnv-phb-root-port in
an environment where it is not supported, e.g. if doing this:

 echo "device_add pnv-phb-root-port" | \
 ./qemu-system-ppc64 -monitor stdio -M powernv9

To avoid this problem, the pnv_phb_root_port_realize() function should
not use error_fatal when trying to set the properties which might not
be available.

Fixes: c2f3f78af5 ("ppc/pnv: set root port chassis and slot using Bus properties")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20221109122210.115667-1-thuth@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
20 months agovirtio-net: fix for heap-buffer-overflow
Xuan Zhuo [Thu, 10 Nov 2022 09:57:39 +0000 (17:57 +0800)]
virtio-net: fix for heap-buffer-overflow

Run shell script:

    cat << EOF | valgrind qemu-system-i386 -display none -machine accel=qtest, -m \
    512M -M q35 -nodefaults -device virtio-net,netdev=net0 -netdev \
    user,id=net0 -qtest stdio
    outl 0xcf8 0x80000810
    outl 0xcfc 0xc000
    outl 0xcf8 0x80000804
    outl 0xcfc 0x01
    outl 0xc00d 0x0200
    outl 0xcf8 0x80000890
    outb 0xcfc 0x4
    outl 0xcf8 0x80000889
    outl 0xcfc 0x1c000000
    outl 0xcf8 0x80000893
    outw 0xcfc 0x100
    EOF

Got:
    ==68666== Invalid read of size 8
    ==68666==    at 0x688536: virtio_net_queue_enable (virtio-net.c:575)
    ==68666==    by 0x6E31AE: memory_region_write_accessor (memory.c:492)
    ==68666==    by 0x6E098D: access_with_adjusted_size (memory.c:554)
    ==68666==    by 0x6E4DB3: memory_region_dispatch_write (memory.c:1521)
    ==68666==    by 0x6E31AE: memory_region_write_accessor (memory.c:492)
    ==68666==    by 0x6E098D: access_with_adjusted_size (memory.c:554)
    ==68666==    by 0x6E4DB3: memory_region_dispatch_write (memory.c:1521)
    ==68666==    by 0x6EBCD3: flatview_write_continue (physmem.c:2820)
    ==68666==    by 0x6EBFBF: flatview_write (physmem.c:2862)
    ==68666==    by 0x6EF5E7: address_space_write (physmem.c:2958)
    ==68666==    by 0x6DFDEC: cpu_outw (ioport.c:70)
    ==68666==    by 0x6F6DF0: qtest_process_command (qtest.c:480)
    ==68666==  Address 0x29087fe8 is 24 bytes after a block of size 416 in arena "client"

That is reported by Alexander Bulekov. https://gitlab.com/qemu-project/qemu/-/issues/1309

Here, the queue_index is the index of the cvq, but in some cases cvq
does not have the corresponding NetClientState, so overflow appears.

I add a check here, ignore illegal queue_index and cvq queue_index.

Note the queue_index is below the VIRTIO_QUEUE_MAX but greater or equal
than cvq index could hit this. Other devices are similar.

Fixes: 7f863302 ("virtio-net: support queue_enable")
Fixes: https://gitlab.com/qemu-project/qemu/-/issues/1309
Reported-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Message-Id: <20221110095739.130393-1-xuanzhuo@linux.alibaba.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agodisplay: include dependencies explicitly
Michael S. Tsirkin [Wed, 9 Nov 2022 22:21:23 +0000 (17:21 -0500)]
display: include dependencies explicitly

acpi-vga-stub.c pulls in vga_int.h
However that currently pulls in ui/console.h which
breaks e.g. on systems without pixman.
It's better to remove ui/console.h from vga_int.h
and directly include it where it's used.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20221109222112.74519-1-mst@redhat.com>
Tested-by: Laurent Vivier <lvivier@redhat.com>
Reported-by: Miroslav Rezanina <mrezanin@redhat.com>
Reported-by: Frederic Bezies <fredbezies@gmail.com>
Reported-by: Laurent Vivier <lvivier@redhat.com>
Fixes: cfead31326 ("AcpiDevAmlIf interface to build VGA device descs")
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
20 months agocheckpatch: typo fix
Michael S. Tsirkin [Tue, 8 Nov 2022 13:52:06 +0000 (08:52 -0500)]
checkpatch: typo fix

remove inline #inline - it's an obvious typo. Should just be remove
inline.

Fixes: 1ef47f40dc ("checkpatch: better pattern for inline comments")
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20221108135155.1121566-1-mst@redhat.com>

20 months agoMerge tag 'pull-tcg-20221109' of https://gitlab.com/rth7680/qemu into staging
Stefan Hajnoczi [Wed, 9 Nov 2022 18:26:45 +0000 (13:26 -0500)]
Merge tag 'pull-tcg-20221109' of https://gitlab.com/rth7680/qemu into staging

Fix -Werror=clobbered issue with tb_gen_code

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# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
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* tag 'pull-tcg-20221109' of https://gitlab.com/rth7680/qemu:
  accel/tcg: Split out setjmp_gen_code
  tcg: Move TCG_TARGET_HAS_direct_jump init to tb_gen_code

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
20 months agoaccel/tcg: Split out setjmp_gen_code
Richard Henderson [Sun, 6 Nov 2022 00:12:33 +0000 (11:12 +1100)]
accel/tcg: Split out setjmp_gen_code

Isolate the code protected by setjmp.  Fixes:

translate-all.c: In function ‘tb_gen_code’:
translate-all.c:748:51: error: argument ‘cflags’ might be clobbered by ‘longjmp’ or ‘vfork’ [-Werror=clobbered]

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
20 months agotcg: Move TCG_TARGET_HAS_direct_jump init to tb_gen_code
Richard Henderson [Sat, 5 Nov 2022 23:55:37 +0000 (10:55 +1100)]
tcg: Move TCG_TARGET_HAS_direct_jump init to tb_gen_code

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
20 months agoUpdate VERSION for v7.2.0-rc0
Stefan Hajnoczi [Tue, 8 Nov 2022 18:41:40 +0000 (13:41 -0500)]
Update VERSION for v7.2.0-rc0

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
20 months agoRevert "hw/block/pflash_cfi: Error out if dev length isn't power of 2"
Daniel Henrique Barboza [Tue, 8 Nov 2022 14:00:32 +0000 (15:00 +0100)]
Revert "hw/block/pflash_cfi: Error out if dev length isn't power of 2"

Commit 334c388f25 ("pflash_cfi: Error out if device length
isn't a power of two") aimed to finish the effort started by
commit 06f1521795 ("pflash: Require backend size to match device,
improve errors"), but unfortunately we are not quite there since
various machines are still ready to accept incomplete / oversized
pflash backend images, and now fail, i.e. on Debian bullseye:

 $ qemu-system-x86_64 \
   -drive \
   if=pflash,format=raw,unit=0,readonly=on,file=/usr/share/OVMF/OVMF_CODE.fd
 qemu-system-x86_64: Device size must be a power of two.

where OVMF_CODE.fd comes from the ovmf package, which doesn't
pad the firmware images to the flash size:

 $ ls -lh /usr/share/OVMF/
 -rw-r--r-- 1 root root 3.5M Aug 19  2021 OVMF_CODE_4M.fd
 -rw-r--r-- 1 root root 1.9M Aug 19  2021 OVMF_CODE.fd
 -rw-r--r-- 1 root root 128K Aug 19  2021 OVMF_VARS.fd

Since we entered the freeze period to prepare the v7.2.0 release,
the safest is to revert commit 334c388f25707a234c4a0dea05b9df08d.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1294
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221108175755.95141-1-philmd@linaro.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20221108172633.860700-1-danielhb413@gmail.com>

20 months agomemory: Fix wrong end address dump
Zhenzhong Duan [Wed, 22 Jun 2022 09:59:12 +0000 (17:59 +0800)]
memory: Fix wrong end address dump

The end address of memory region section isn't correctly calculated
which leads to overflowed mtree dump:

  Dispatch
    Physical sections
      ......
      #70 @0000000000002000..0000000000011fff io [ROOT]
      #71 @0000000000005000..0000000000005fff (noname)
      #72 @0000000000005000..0000000000014fff io [ROOT]
      #73 @0000000000005658..0000000000005658 vmport
      #74 @0000000000005659..0000000000015658 io [ROOT]
      #75 @0000000000006000..0000000000015fff io [ROOT]

After fix:
      #70 @0000000000002000..0000000000004fff io [ROOT]
      #71 @0000000000005000..0000000000005fff (noname)
      #72 @0000000000005000..0000000000005657 io [ROOT]
      #73 @0000000000005658..0000000000005658 vmport
      #74 @0000000000005659..0000000000005fff io [ROOT]
      #75 @0000000000006000..000000000000ffff io [ROOT]

Fixes: 5e8fd947e2670 ("memory: Rework "info mtree" to print flat views and dispatch trees")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20220622095912.3430583-1-zhenzhong.duan@intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
20 months agovhost-vdpa: fix assert !virtio_net_get_subqueue(nc)->async_tx.elem in virtio_net_reset
Si-Wei Liu [Tue, 8 Nov 2022 04:19:28 +0000 (12:19 +0800)]
vhost-vdpa: fix assert !virtio_net_get_subqueue(nc)->async_tx.elem in virtio_net_reset

The citing commit has incorrect code in vhost_vdpa_receive() that returns
zero instead of full packet size to the caller. This renders pending packets
unable to be freed so then get clogged in the tx queue forever. When device
is being reset later on, below assertion failure ensues:

0  0x00007f86d53bb387 in raise () from /lib64/libc.so.6
1  0x00007f86d53bca78 in abort () from /lib64/libc.so.6
2  0x00007f86d53b41a6 in __assert_fail_base () from /lib64/libc.so.6
3  0x00007f86d53b4252 in __assert_fail () from /lib64/libc.so.6
4  0x000055b8f6ff6fcc in virtio_net_reset (vdev=<optimized out>) at /usr/src/debug/qemu/hw/net/virtio-net.c:563
5  0x000055b8f7012fcf in virtio_reset (opaque=0x55b8faf881f0) at /usr/src/debug/qemu/hw/virtio/virtio.c:1993
6  0x000055b8f71f0086 in virtio_bus_reset (bus=bus@entry=0x55b8faf88178) at /usr/src/debug/qemu/hw/virtio/virtio-bus.c:102
7  0x000055b8f71f1620 in virtio_pci_reset (qdev=<optimized out>) at /usr/src/debug/qemu/hw/virtio/virtio-pci.c:1845
8  0x000055b8f6fafc6c in memory_region_write_accessor (mr=<optimized out>, addr=<optimized out>, value=<optimized out>,
   size=<optimized out>, shift=<optimized out>, mask=<optimized out>, attrs=...) at /usr/src/debug/qemu/memory.c:483
9  0x000055b8f6fadce9 in access_with_adjusted_size (addr=addr@entry=20, value=value@entry=0x7f867e7fb7e8, size=size@entry=1,
   access_size_min=<optimized out>, access_size_max=<optimized out>, access_fn=0x55b8f6fafc20 <memory_region_write_accessor>,
   mr=0x55b8faf80a50, attrs=...) at /usr/src/debug/qemu/memory.c:544
10 0x000055b8f6fb1d0b in memory_region_dispatch_write (mr=mr@entry=0x55b8faf80a50, addr=addr@entry=20, data=0, op=<optimized out>,
   attrs=attrs@entry=...) at /usr/src/debug/qemu/memory.c:1470
11 0x000055b8f6f62ada in flatview_write_continue (fv=fv@entry=0x7f86ac04cd20, addr=addr@entry=549755813908, attrs=...,
   attrs@entry=..., buf=buf@entry=0x7f86d0223028 <Address 0x7f86d0223028 out of bounds>, len=len@entry=1, addr1=20, l=1,
   mr=0x55b8faf80a50) at /usr/src/debug/qemu/exec.c:3266
12 0x000055b8f6f62c8f in flatview_write (fv=0x7f86ac04cd20, addr=549755813908, attrs=...,
   buf=0x7f86d0223028 <Address 0x7f86d0223028 out of bounds>, len=1) at /usr/src/debug/qemu/exec.c:3306
13 0x000055b8f6f674cb in address_space_write (as=<optimized out>, addr=<optimized out>, attrs=..., buf=<optimized out>,
   len=<optimized out>) at /usr/src/debug/qemu/exec.c:3396
14 0x000055b8f6f67575 in address_space_rw (as=<optimized out>, addr=<optimized out>, attrs=..., attrs@entry=...,
   buf=buf@entry=0x7f86d0223028 <Address 0x7f86d0223028 out of bounds>, len=<optimized out>, is_write=<optimized out>)
   at /usr/src/debug/qemu/exec.c:3406
15 0x000055b8f6fc1cc8 in kvm_cpu_exec (cpu=cpu@entry=0x55b8f9aa0e10) at /usr/src/debug/qemu/accel/kvm/kvm-all.c:2410
16 0x000055b8f6fa5f5e in qemu_kvm_cpu_thread_fn (arg=0x55b8f9aa0e10) at /usr/src/debug/qemu/cpus.c:1318
17 0x000055b8f7336e16 in qemu_thread_start (args=0x55b8f9ac8480) at /usr/src/debug/qemu/util/qemu-thread-posix.c:519
18 0x00007f86d575aea5 in start_thread () from /lib64/libpthread.so.0
19 0x00007f86d5483b2d in clone () from /lib64/libc.so.6

Make vhost_vdpa_receive() return the size passed in as is, so that the
caller qemu_deliver_packet_iov() would eventually propagate it back to
virtio_net_flush_tx() to release pending packets from the async_tx queue.
Which corresponds to the drop path where qemu_sendv_packet_async() returns
non-zero in virtio_net_flush_tx().

Fixes: 846a1e85da64 ("vdpa: Add dummy receive callback")
Cc: Eugenio Perez Martin <eperezma@redhat.com>
Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221108041929.18417-2-jasowang@redhat.com>

20 months agoMerge tag 'pull-request-2022-11-08' of https://gitlab.com/thuth/qemu into staging
Stefan Hajnoczi [Tue, 8 Nov 2022 16:34:06 +0000 (11:34 -0500)]
Merge tag 'pull-request-2022-11-08' of https://gitlab.com/thuth/qemu into staging

* Last minute s390x fixes before the hard freeze
* Whiste space clean-up in ui/, display/ and hw/usb/

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# gpg: Signature made Tue 08 Nov 2022 06:29:33 EST
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2022-11-08' of https://gitlab.com/thuth/qemu:
  hw/usb: fix tab indentation
  hw/display: fix tab indentation
  ui: fix tab indentation
  s390x/s390-virtio-ccw: Switch off zPCI enhancements on older machines
  Revert "s390x/s390-virtio-ccw: add zpcii-disable machine property"

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
20 months agoMerge tag 'mips-20221108' of https://github.com/philmd/qemu into staging
Stefan Hajnoczi [Tue, 8 Nov 2022 13:43:37 +0000 (08:43 -0500)]
Merge tag 'mips-20221108' of https://github.com/philmd/qemu into staging

MIPS patches queue

- Remove -Wclobbered in nanoMIPS disassembler (Richard Henderson)
- Fix invalid string formats in nanoMIPS disassembler (myself)
- Allow Loongson-2F to access XKPHYS in kernel mode (Jiaxun Yang)
- Octeon opcode fixes (Jiaxun Yang, Pavel Dovgalyuk)
- MAINTAINERS nanoMIPS update

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# gpg: Signature made Mon 07 Nov 2022 19:05:10 EST
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD C0DE

* tag 'mips-20221108' of https://github.com/philmd/qemu:
  MAINTAINERS: Inherit from nanoMIPS
  disas/nanomips: Tidy read for 48-bit opcodes
  disas/nanomips: Split out read_u16
  disas/nanomips: Merge insn{1,2,3} into words[3]
  disas/nanomips: Move setjmp into nanomips_dis
  disas/nanomips: Remove headers already included by "qemu/osdep.h"
  disas/nanomips: Use G_GNUC_PRINTF to avoid invalid string formats
  disas/nanomips: Fix invalid PRIx64 format calling img_format()
  disas/nanomips: Fix invalid PRId64 format calling img_format()
  target/mips: Don't check COP1X for 64 bit FP mode
  target/mips: Disable DSP ASE for Octeon68XX
  target/mips: Enable LBX/LWX/* instructions for Octeon
  target/mips: Cast offset field of Octeon BBIT to int16_t
  target/mips: Set CP0St_{KX, SX, UX} for Loongson-2F

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
20 months agohw/usb: fix tab indentation
Amarjargal Gundjalam [Tue, 25 Oct 2022 14:28:11 +0000 (22:28 +0800)]
hw/usb: fix tab indentation

The TABs should be replaced with spaces, to make sure that we have a
consistent coding style with an indentation of 4 spaces everywhere.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/370
Signed-off-by: Amarjargal Gundjalam <amarjargal16@gmail.com>
Message-Id: <6c993f57800f8fef7a910074620f6e80e077a3d1.1666707782.git.amarjargal16@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
20 months agohw/display: fix tab indentation
Amarjargal Gundjalam [Tue, 25 Oct 2022 14:28:10 +0000 (22:28 +0800)]
hw/display: fix tab indentation

The TABs should be replaced with spaces, to make sure that we have a
consistent coding style with an indentation of 4 spaces everywhere.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/370
Signed-off-by: Amarjargal Gundjalam <amarjargal16@gmail.com>
Message-Id: <5cefd05b4d3721d416e48e6df19df18cb6338933.1666707782.git.amarjargal16@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
20 months agoui: fix tab indentation
Amarjargal Gundjalam [Tue, 25 Oct 2022 14:28:08 +0000 (22:28 +0800)]
ui: fix tab indentation

The TABs should be replaced with spaces, to make sure that we have a
consistent coding style with an indentation of 4 spaces everywhere.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/370
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Amarjargal Gundjalam <amarjargal16@gmail.com>
Message-Id: <9a0d0718aafaa52029fad76a149f3200b6bba0dd.1666707782.git.amarjargal16@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
20 months agos390x/s390-virtio-ccw: Switch off zPCI enhancements on older machines
Cédric Le Goater [Mon, 7 Nov 2022 16:13:49 +0000 (17:13 +0100)]
s390x/s390-virtio-ccw: Switch off zPCI enhancements on older machines

zPCI enhancement features (interpretation and forward assist) were
recently introduced to improve performance on PCI passthrough devices.
To maintain the same behaviour on older Z machines, deactivate the
features with the associated properties.

Signed-off-by: Cédric Le Goater <clg@redhat.com>
Message-Id: <20221107161349.1032730-3-clg@kaod.org>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
20 months agoRevert "s390x/s390-virtio-ccw: add zpcii-disable machine property"
Cédric Le Goater [Mon, 7 Nov 2022 16:13:48 +0000 (17:13 +0100)]
Revert "s390x/s390-virtio-ccw: add zpcii-disable machine property"

This reverts commit 59d1ce44396e3ad2330dc3261ff3da7ad3a16184.

The "zpcii-disable" machine property is redundant with the "interpret"
zPCI device property. Remove it for clarification.

Signed-off-by: Cédric Le Goater <clg@redhat.com>
Message-Id: <20221107161349.1032730-2-clg@kaod.org>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
20 months agoMAINTAINERS: Inherit from nanoMIPS
Philippe Mathieu-Daudé [Sun, 30 Oct 2022 22:38:49 +0000 (23:38 +0100)]
MAINTAINERS: Inherit from nanoMIPS

6 months ago Stefan Pejic stepped in as nanoMIPS maintainer
(see commit a 8e0e23445a "target/mips: Undeprecate nanoMIPS
ISA support in QEMU"), however today his email is bouncing:

  ** Message blocked **

  Your message to stefan.pejic@syrmia.com has been blocked. See technical details below for more information.

  The response from the remote server was:
  550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [DBAEUR03FT030.eop-EUR03.prod.protection.outlook.com]

To avoid unmaintained code, I feel forced to merge this code
back with the generic MIPS section.

Historical references:
- https://lore.kernel.org/qemu-devel/TY0PR03MB679726901BD6C6BE40114A2FE2A79@TY0PR03MB6797.apcprd03.prod.outlook.com/
- https://lore.kernel.org/qemu-devel/b858a20e97b74e7b90a94948314d0008@MTKMBS62N2.mediatek.inc/

Cc: Vince Del Vecchio <Vince.DelVecchio@mediatek.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <49f41916-687f-b9e5-2de7-9c658fe0d4c7@linaro.org>
Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221101114458.25756-6-philmd@linaro.org>

20 months agodisas/nanomips: Tidy read for 48-bit opcodes
Richard Henderson [Sun, 6 Nov 2022 02:37:33 +0000 (13:37 +1100)]
disas/nanomips: Tidy read for 48-bit opcodes

There is no point in looking for a 48-bit opcode if we've
not read the second word for a 32-bit opcode.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221106023735.5277-5-richard.henderson@linaro.org>

20 months agodisas/nanomips: Split out read_u16
Richard Henderson [Sun, 6 Nov 2022 02:37:32 +0000 (13:37 +1100)]
disas/nanomips: Split out read_u16

Split out a helper function for reading a uint16_t
with the correct endianness.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221106023735.5277-4-richard.henderson@linaro.org>

20 months agodisas/nanomips: Merge insn{1,2,3} into words[3]
Richard Henderson [Sun, 6 Nov 2022 21:28:48 +0000 (08:28 +1100)]
disas/nanomips: Merge insn{1,2,3} into words[3]

Since Disassemble wants the data in this format, collect
it that way.  This allows using a loop to print the bytes.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221106212852.152384-3-richard.henderson@linaro.org>

20 months agodisas/nanomips: Move setjmp into nanomips_dis
Richard Henderson [Sun, 6 Nov 2022 21:28:47 +0000 (08:28 +1100)]
disas/nanomips: Move setjmp into nanomips_dis

Reduce the number of local variables within the scope of the
setjmp by moving it to the existing helper.  The actual length
returned from Disassemble is not used, because we have already
determined the length while reading bytes.  Fixes:

nanomips.c: In function ‘print_insn_nanomips’:
nanomips.c:21925:14: error: variable ‘insn1’ might be clobbered by ‘longjmp’ or ‘vfork’ [-Werror=clobbered]
nanomips.c:21925:25: error: variable ‘insn2’ might be clobbered by ‘longjmp’ or ‘vfork’ [-Werror=clobbered]
nanomips.c:21925:36: error: variable ‘insn3’ might be clobbered by ‘longjmp’ or ‘vfork’ [-Werror=clobbered]
nanomips.c:21926:22: error: variable ‘buf’ might be clobbered by ‘longjmp’ or ‘vfork’ [-Werror=clobbered]

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221106212852.152384-2-richard.henderson@linaro.org>

20 months agodisas/nanomips: Remove headers already included by "qemu/osdep.h"
Philippe Mathieu-Daudé [Tue, 1 Nov 2022 11:44:57 +0000 (12:44 +0100)]
disas/nanomips: Remove headers already included by "qemu/osdep.h"

Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221101114458.25756-5-philmd@linaro.org>

20 months agodisas/nanomips: Use G_GNUC_PRINTF to avoid invalid string formats
Philippe Mathieu-Daudé [Tue, 1 Nov 2022 11:44:56 +0000 (12:44 +0100)]
disas/nanomips: Use G_GNUC_PRINTF to avoid invalid string formats

Suggested-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221101114458.25756-4-philmd@linaro.org>

20 months agodisas/nanomips: Fix invalid PRIx64 format calling img_format()
Philippe Mathieu-Daudé [Tue, 1 Nov 2022 11:44:55 +0000 (12:44 +0100)]
disas/nanomips: Fix invalid PRIx64 format calling img_format()

Fix:

  disas/nanomips.c:12231:62: warning: format specifies type 'char *' but the argument has type 'uint64' (aka 'unsigned long long') [-Wformat]
    return img_format("RESTOREF 0x%" PRIx64 ", %s", u_value, count_value);
                                               ~~            ^~~~~~~~~~~
                                               %llu

Fixes: 4066c152b3 ("disas/nanomips: Remove IMMEDIATE functions")
Reported-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221101114458.25756-3-philmd@linaro.org>

20 months agodisas/nanomips: Fix invalid PRId64 format calling img_format()
Philippe Mathieu-Daudé [Tue, 1 Nov 2022 11:44:54 +0000 (12:44 +0100)]
disas/nanomips: Fix invalid PRId64 format calling img_format()

Fix warnings such:

  disas/nanomips.c:3251:64: warning: format specifies type 'char *' but the argument has type 'int64' (aka 'long long') [-Wformat]
    return img_format("CACHE 0x%" PRIx64 ", %s(%s)", op_value, s_value, rs);
                                            ~~                 ^~~~~~~
                                            %lld

To avoid crashes such (kernel from commit f375ad6a0d):

  $ qemu-system-mipsel -cpu I7200 -d in_asm -kernel generic_nano32r6el_page4k
  ...
  ----------------
  IN: __bzero
  0x805c6084:  20c4 6950      ADDU r13, a0, a2
  0x805c6088:  9089           ADDIU a0, 1
  Process 70261 stopped
  * thread #6, stop reason = EXC_BAD_ACCESS (code=1, address=0xfffffffffffffff0)
      frame #0: 0x00000001bfe38864 libsystem_platform.dylib`_platform_strlen + 4
  libsystem_platform.dylib`:
  ->  0x1bfe38864 <+4>:  ldr    q0, [x1]
      0x1bfe38868 <+8>:  adr    x3, #-0xc8                ; ___lldb_unnamed_symbol314
      0x1bfe3886c <+12>: ldr    q2, [x3], #0x10
      0x1bfe38870 <+16>: and    x2, x0, #0xf
  Target 0: (qemu-system-mipsel) stopped.
  (lldb) bt
  * thread #6, stop reason = EXC_BAD_ACCESS (code=1, address=0xfffffffffffffff0)
    * frame #0: 0x00000001bfe38864 libsystem_platform.dylib`_platform_strlen + 4
      frame #1: 0x00000001bfce76a0 libsystem_c.dylib`__vfprintf + 4544
      frame #2: 0x00000001bfd158b4 libsystem_c.dylib`_vasprintf + 280
      frame #3: 0x0000000101c22fb0 libglib-2.0.0.dylib`g_vasprintf + 28
      frame #4: 0x0000000101bfb7d8 libglib-2.0.0.dylib`g_strdup_vprintf + 32
      frame #5: 0x000000010000fb70 qemu-system-mipsel`img_format(format=<unavailable>) at nanomips.c:103:14 [opt]
      frame #6: 0x0000000100018868 qemu-system-mipsel`SB_S9_(instruction=<unavailable>, info=<unavailable>) at nanomips.c:12616:12 [opt]
      frame #7: 0x000000010000f90c qemu-system-mipsel`print_insn_nanomips at nanomips.c:589:28 [opt]

Fixes: 4066c152b3 ("disas/nanomips: Remove IMMEDIATE functions")
Reported-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221101114458.25756-2-philmd@linaro.org>

20 months agotarget/mips: Don't check COP1X for 64 bit FP mode
Jiaxun Yang [Wed, 2 Nov 2022 16:57:18 +0000 (16:57 +0000)]
target/mips: Don't check COP1X for 64 bit FP mode

Some implementations (i.e. Loongson-2F) may decide to implement
a 64 bit FPU without implementing COP1X instructions.

As the eligibility of 64 bit FP instructions is already determined
by CP0St_FR, there is no need to check for COP1X again.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221102165719.190378-1-jiaxun.yang@flygoat.com>
[PMD: Add missing trailing parenthesis (buildfix)]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
20 months agotarget/mips: Disable DSP ASE for Octeon68XX
Jiaxun Yang [Mon, 31 Oct 2022 13:25:31 +0000 (13:25 +0000)]
target/mips: Disable DSP ASE for Octeon68XX

I don't have access to Octeon68XX hardware but according
to my investigation Octeon never had DSP ASE support.

As per "Cavium Networks OCTEON Plus CN50XX Hardware Reference
Manual" CP0C3_DSPP is reserved bit and read as 0. Also I do have
access to a Ubiquiti Edgerouter 4 which has Octeon CN7130 processor
and I can confirm CP0C3_DSPP is read as 0 on that processor.

Further more, in linux kernel:
arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
cpu_has_dsp is overridden as 0.

So I believe we shouldn't emulate DSP in QEMU as well.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Message-Id: <20221031132531.18122-4-jiaxun.yang@flygoat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
20 months agotarget/mips: Enable LBX/LWX/* instructions for Octeon
Pavel Dovgalyuk [Tue, 1 Nov 2022 05:29:44 +0000 (08:29 +0300)]
target/mips: Enable LBX/LWX/* instructions for Octeon

This patch changes condition and function name for enabling
indexed load instructions for Octeon vCPUs. Octeons do not
have DSP extension, but implement LBX-and-others.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <166728058455.229236.13834649461181619195.stgit@pasha-ThinkPad-X280>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
20 months agotarget/mips: Cast offset field of Octeon BBIT to int16_t
Jiaxun Yang [Mon, 31 Oct 2022 13:25:30 +0000 (13:25 +0000)]
target/mips: Cast offset field of Octeon BBIT to int16_t

As per "Cavium Networks OCTEON Plus CN50XX Hardware Reference
Manual" offset field is signed 16 bit value. However arg_BBIT.offset
is unsigned. We need to cast it as signed to do address calculation.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221031132531.18122-3-jiaxun.yang@flygoat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
20 months agotarget/mips: Set CP0St_{KX, SX, UX} for Loongson-2F
Jiaxun Yang [Mon, 31 Oct 2022 13:25:29 +0000 (13:25 +0000)]
target/mips: Set CP0St_{KX, SX, UX} for Loongson-2F

As per an unpublished document, in later reversion of chips
CP0St_{KX, SX, UX} is not writeable and hardcoded to 1.

Without those bits set, kernel is unable to access XKPHYS address
segment. So just set them up on CPU reset.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221031132531.18122-2-jiaxun.yang@flygoat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
20 months agoMerge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into...
Stefan Hajnoczi [Mon, 7 Nov 2022 23:43:56 +0000 (18:43 -0500)]
Merge tag 'for_upstream' of https://git./virt/kvm/mst/qemu into staging

pci,pc,virtio: features, tests, fixes, cleanups

lots of acpi rework
first version of biosbits infrastructure
ASID support in vhost-vdpa
core_count2 support in smbios
PCIe DOE emulation
virtio vq reset
HMAT support
part of infrastructure for viommu support in vhost-vdpa
VTD PASID support
fixes, tests all over the place

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
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* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (83 commits)
  checkpatch: better pattern for inline comments
  hw/virtio: introduce virtio_device_should_start
  tests/acpi: update tables for new core count test
  bios-tables-test: add test for number of cores > 255
  tests/acpi: allow changes for core_count2 test
  bios-tables-test: teach test to use smbios 3.0 tables
  hw/smbios: add core_count2 to smbios table type 4
  vhost-user: Support vhost_dev_start
  vhost: Change the sequence of device start
  intel-iommu: PASID support
  intel-iommu: convert VTD_PE_GET_FPD_ERR() to be a function
  intel-iommu: drop VTDBus
  intel-iommu: don't warn guest errors when getting rid2pasid entry
  vfio: move implement of vfio_get_xlat_addr() to memory.c
  tests: virt: Update expected *.acpihmatvirt tables
  tests: acpi: aarch64/virt: add a test for hmat nodes with no initiators
  hw/arm/virt: Enable HMAT on arm virt machine
  tests: Add HMAT AArch64/virt empty table files
  tests: acpi: q35: update expected blobs *.hmat-noinitiators expected HMAT:
  tests: acpi: q35: add test for hmat nodes without initiators
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
20 months agoutil/log: Ignore per-thread flag if global file already there
Greg Kurz [Fri, 4 Nov 2022 12:00:59 +0000 (13:00 +0100)]
util/log: Ignore per-thread flag if global file already there

If QEMU is started with `-D qemu.log.%d` without any `-d` option,
doing `log all` in the monitor fails with:

Filename template with '%d' required for 'tid'

It is confusing since '%d' was actually passed.

This happens because QEMU caches the log file name with %d converted
to getpid() since `tid` wasn't required. This name isn't suitable
for a subsequent enablement of per-thread logs. There's little cause
to change the behavior as `-d tid` is mostly used at user-only startup.

Drop the per-thread from the requested flags in this case : `log all`
will thus enable everything except `tid` instead of failing. This is
preferable over forcing the user to enable each log item individually.

With this patch, `tid` is now truely immutable : it can only be set
or unset from the command line and never changed afterwards.

Fixes: 4e51069d6793 ("util/log: Support per-thread log files")
Cc: richard.henderson@linaro.org
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221104120059.678470-3-groug@kaod.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
20 months agoutil/log: Make the per-thread flag immutable
Greg Kurz [Fri, 4 Nov 2022 12:00:58 +0000 (13:00 +0100)]
util/log: Make the per-thread flag immutable

Per-thread logging was implemented under the assumption that once
enabled, it is not possible to switch back to single file logging.
This isn't enforced though and it is possible to go through the
global file opening sequence in per-thread mode. The code isn't
ready for this and produces unexpected results as detailed below.

Start QEMU in system emulation mode with `-D ./qemu.log.%d -d tid`
and then change the log level from the monitor to something that
doesn't have tid, e.g. `log cpu_reset`. The value of log_flags
is zero and per_thread is set to false : the rest of the code
then assumes it is running in the global log case and opens a
file named `qemu.log.%d`, which is obviously not an expected
behavior.

Enforce the immutability of the flag early in qemu_set_log_internal()
so that its value is correct for all subsequent users.

Fixes: 4e51069d6793 ("util/log: Support per-thread log files")
Cc: richard.henderson@linaro.org
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221104120059.678470-2-groug@kaod.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
20 months agoMerge tag 'pull-loongarch-20221107' of https://gitlab.com/gaosong/qemu into staging
Stefan Hajnoczi [Mon, 7 Nov 2022 20:21:45 +0000 (15:21 -0500)]
Merge tag 'pull-loongarch-20221107' of https://gitlab.com/gaosong/qemu into staging

pull-loongarch-20221107

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# gpg: Good signature from "Song Gao <m17746591750@163.com>" [unknown]
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# Primary key fingerprint: B8FF 1DA0 D2FD CB2D A09C  6C2C 40A2 FFF2 3926 3EDF

* tag 'pull-loongarch-20221107' of https://gitlab.com/gaosong/qemu:
  target/loongarch: Fix return value of CHECK_FPE
  target/loongarch: Separate the hardware flags into MMU index and PLV

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
20 months agocheckpatch: better pattern for inline comments
Michael S. Tsirkin [Mon, 7 Nov 2022 14:52:16 +0000 (09:52 -0500)]
checkpatch: better pattern for inline comments

checkpatch is unhappy about this line:

    WARNING: Block comments use a leading /* on a separate line
    #50: FILE: hw/acpi/nvdimm.c:1074:
    +                   aml_equal(aml_sizeof(pckg), aml_int(1)) /* 1 element? */));

but there's nothing wrong with it - the check is just too simplistic. It
will also miss lines which mix inline and block comments.

Instead, let's strip all inline comments from a line and then check for block
comments.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agohw/virtio: introduce virtio_device_should_start
Alex Bennée [Mon, 7 Nov 2022 12:14:07 +0000 (12:14 +0000)]
hw/virtio: introduce virtio_device_should_start

The previous fix to virtio_device_started revealed a problem in its
use by both the core and the device code. The core code should be able
to handle the device "starting" while the VM isn't running to handle
the restoration of migration state. To solve this duel use introduce a
new helper for use by the vhost-user backends who all use it to feed a
should_start variable.

We can also pick up a change vhost_user_blk_set_status while we are at
it which follows the same pattern.

Fixes: 9f6bcfd99f (hw/virtio: move vm_running check to virtio_device_started)
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Message-Id: <20221107121407.1010913-1-alex.bennee@linaro.org>

20 months agotests/acpi: update tables for new core count test
Julia Suvorova [Tue, 11 Oct 2022 11:17:31 +0000 (13:17 +0200)]
tests/acpi: update tables for new core count test

Changes in the tables (for 275 cores):
FACP:
+                 Use APIC Cluster Model (V4) : 1

APIC:
+[02Ch 0044   1]                Subtable Type : 00 [Processor Local APIC]
+[02Dh 0045   1]                       Length : 08
+[02Eh 0046   1]                 Processor ID : 00
+[02Fh 0047   1]                Local Apic ID : 00
+[030h 0048   4]        Flags (decoded below) : 00000001
+                           Processor Enabled : 1
...
+
+[81Ch 2076   1]                Subtable Type : 00 [Processor Local APIC]
+[81Dh 2077   1]                       Length : 08
+[81Eh 2078   1]                 Processor ID : FE
+[81Fh 2079   1]                Local Apic ID : FE
+[820h 2080   4]        Flags (decoded below) : 00000001
+                           Processor Enabled : 1
+                      Runtime Online Capable : 0
+
+[824h 2084   1]                Subtable Type : 09 [Processor Local x2APIC]
+[825h 2085   1]                       Length : 10
+[826h 2086   2]                     Reserved : 0000
+[828h 2088   4]          Processor x2Apic ID : 000000FF
+[82Ch 2092   4]        Flags (decoded below) : 00000001
+                           Processor Enabled : 1
+[830h 2096   4]                Processor UID : 000000FF
...

DSDT:
+            Processor (C001, 0x01, 0x00000000, 0x00)
+            {
+                Method (_STA, 0, Serialized)  // _STA: Status
+                {
+                    Return (CSTA (One))
+                }
+
+                Name (_MAT, Buffer (0x08)  // _MAT: Multiple APIC Table Entry
+                {
+                     0x00, 0x08, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00   // ........
+                })
+                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device, x=0-9
+                {
+                    CEJ0 (One)
+                }
+
+                Method (_OST, 3, Serialized)  // _OST: OSPM Status Indication
+                {
+                    COST (One, Arg0, Arg1, Arg2)
+                }
+            }
...
+            Processor (C0FE, 0xFE, 0x00000000, 0x00)
+            {
+                Method (_STA, 0, Serialized)  // _STA: Status
+                {
+                    Return (CSTA (0xFE))
+                }
+
+                Name (_MAT, Buffer (0x08)  // _MAT: Multiple APIC Table Entry
+                {
+                     0x00, 0x08, 0xFE, 0xFE, 0x01, 0x00, 0x00, 0x00   // ........
+                })
+                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device, x=0-9
+                {
+                    CEJ0 (0xFE)
+                }
+
+                Method (_OST, 3, Serialized)  // _OST: OSPM Status Indication
+                {
+                    COST (0xFE, Arg0, Arg1, Arg2)
+                }
+            }
+
+            Device (C0FF)
+            {
+                Name (_HID, "ACPI0007" /* Processor Device */)  // _HID: Hardware ID
+                Name (_UID, 0xFF)  // _UID: Unique ID
+                Method (_STA, 0, Serialized)  // _STA: Status
+                {
+                    Return (CSTA (0xFF))
+                }
+
+                Name (_MAT, Buffer (0x10)  // _MAT: Multiple APIC Table Entry
+                {
+                    /* 0000 */  0x09, 0x10, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00,  // ........
+                    /* 0008 */  0x01, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00   // ........
+                })
+                Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device, x=0-9
+                {
+                    CEJ0 (0xFF)
+                }
+
+                Method (_OST, 3, Serialized)  // _OST: OSPM Status Indication
+                {
+                    COST (0xFF, Arg0, Arg1, Arg2)
+                }
+            }
+
...

Signed-off-by: Julia Suvorova <jusual@redhat.com>
Message-Id: <20220731162141.178443-6-jusual@redhat.com>
Message-Id: <20221011111731.101412-6-jusual@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agobios-tables-test: add test for number of cores > 255
Julia Suvorova [Tue, 11 Oct 2022 11:17:30 +0000 (13:17 +0200)]
bios-tables-test: add test for number of cores > 255

The new test is run with a large number of cpus and checks if the
core_count field in smbios_cpu_test (structure type 4) is correct.

Choose q35 as it allows to run with -smp > 255.

Signed-off-by: Julia Suvorova <jusual@redhat.com>
Message-Id: <20220731162141.178443-5-jusual@redhat.com>
Message-Id: <20221011111731.101412-5-jusual@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
20 months agotests/acpi: allow changes for core_count2 test
Julia Suvorova [Tue, 11 Oct 2022 11:17:29 +0000 (13:17 +0200)]
tests/acpi: allow changes for core_count2 test

Signed-off-by: Julia Suvorova <jusual@redhat.com>
Message-Id: <20220731162141.178443-4-jusual@redhat.com>
Message-Id: <20221011111731.101412-4-jusual@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Igor Mammedov <imammedo@redhat.com>
20 months agobios-tables-test: teach test to use smbios 3.0 tables
Julia Suvorova [Tue, 11 Oct 2022 11:17:28 +0000 (13:17 +0200)]
bios-tables-test: teach test to use smbios 3.0 tables

Introduce the 64-bit entry point. Since we no longer have a total
number of structures, stop checking for the new ones at the EOF
structure (type 127).

Signed-off-by: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20220731162141.178443-3-jusual@redhat.com>
Message-Id: <20221011111731.101412-3-jusual@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agohw/smbios: add core_count2 to smbios table type 4
Julia Suvorova [Tue, 11 Oct 2022 11:17:27 +0000 (13:17 +0200)]
hw/smbios: add core_count2 to smbios table type 4

In order to use the increased number of cpus, we need to bring smbios
tables in line with the SMBIOS 3.0 specification. This allows us to
introduce core_count2 which acts as a duplicate of core_count if we have
fewer cores than 256, and contains the actual core number per socket if
we have more.

core_enabled2 and thread_count2 fields work the same way.

Signed-off-by: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20220731162141.178443-2-jusual@redhat.com>
Message-Id: <20221011111731.101412-2-jusual@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agovhost-user: Support vhost_dev_start
Yajun Wu [Mon, 17 Oct 2022 06:44:52 +0000 (14:44 +0800)]
vhost-user: Support vhost_dev_start

The motivation of adding vhost-user vhost_dev_start support is to
improve backend configuration speed and reduce live migration VM
downtime.

Today VQ configuration is issued one by one. For virtio net with
multi-queue support, backend needs to update RSS (Receive side
scaling) on every rx queue enable. Updating RSS is time-consuming
(typical time like 7ms).

Implement already defined vhost status and message in the vhost
specification [1].
(a) VHOST_USER_PROTOCOL_F_STATUS
(b) VHOST_USER_SET_STATUS
(c) VHOST_USER_GET_STATUS

Send message VHOST_USER_SET_STATUS with VIRTIO_CONFIG_S_DRIVER_OK for
device start and reset(0) for device stop.

On reception of the DRIVER_OK message, backend can apply the needed setting
only once (instead of incremental) and also utilize parallelism on enabling
queues.

This improves QEMU's live migration downtime with vhost user backend
implementation by great margin, specially for the large number of VQs of 64
from 800 msec to 250 msec.

[1] https://qemu-project.gitlab.io/qemu/interop/vhost-user.html

Signed-off-by: Yajun Wu <yajunw@nvidia.com>
Acked-by: Parav Pandit <parav@nvidia.com>
Message-Id: <20221017064452.1226514-3-yajunw@nvidia.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agovhost: Change the sequence of device start
Yajun Wu [Mon, 17 Oct 2022 06:44:51 +0000 (14:44 +0800)]
vhost: Change the sequence of device start

This patch is part of adding vhost-user vhost_dev_start support. The
motivation is to improve backend configuration speed and reduce live
migration VM downtime.

Moving the device start routines after finishing all the necessary device
and VQ configuration, further aligning to the virtio specification for
"device initialization sequence".

Following patch will add vhost-user vhost_dev_start support.

Signed-off-by: Yajun Wu <yajunw@nvidia.com>
Acked-by: Parav Pandit <parav@nvidia.com>
Message-Id: <20221017064452.1226514-2-yajunw@nvidia.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agointel-iommu: PASID support
Jason Wang [Fri, 28 Oct 2022 06:14:36 +0000 (14:14 +0800)]
intel-iommu: PASID support

This patch introduce ECAP_PASID via "x-pasid-mode". Based on the
existing support for scalable mode, we need to implement the following
missing parts:

1) tag VTDAddressSpace with PASID and support IOMMU/DMA translation
   with PASID
2) tag IOTLB with PASID
3) PASID cache and its flush
4) PASID based IOTLB invalidation

For simplicity PASID cache is not implemented so we can simply
implement the PASID cache flush as a no and leave it to be implemented
in the future. For PASID based IOTLB invalidation, since we haven't
had L1 stage support, the PASID based IOTLB invalidation is not
implemented yet. For PASID based device IOTLB invalidation, it
requires the support for vhost so we forbid enabling device IOTLB when
PASID is enabled now. Those work could be done in the future.

Note that though PASID based IOMMU translation is ready but no device
can issue PASID DMA right now. In this case, PCI_NO_PASID is used as
PASID to identify the address without PASID. vtd_find_add_as() has
been extended to provision address space with PASID which could be
utilized by the future extension of PCI core to allow device model to
use PASID based DMA translation.

This feature would be useful for:

1) prototyping PASID support for devices like virtio
2) future vPASID work
3) future PRS and vSVA work

Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221028061436.30093-5-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agointel-iommu: convert VTD_PE_GET_FPD_ERR() to be a function
Jason Wang [Fri, 28 Oct 2022 06:14:35 +0000 (14:14 +0800)]
intel-iommu: convert VTD_PE_GET_FPD_ERR() to be a function

We used to have a macro for VTD_PE_GET_FPD_ERR() but it has an
internal goto which prevents it from being reused. This patch convert
that macro to a dedicated function and let the caller to decide what
to do (e.g using goto or not). This makes sure it can be re-used for
other function that requires fault reporting.

Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221028061436.30093-4-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
20 months agointel-iommu: drop VTDBus
Jason Wang [Fri, 28 Oct 2022 06:14:34 +0000 (14:14 +0800)]
intel-iommu: drop VTDBus

We introduce VTDBus structure as an intermediate step for searching
the address space. This works well with SID based matching/lookup. But
when we want to support SID plus PASID based address space lookup,
this intermediate steps turns out to be a burden. So the patch simply
drops the VTDBus structure and use the PCIBus and devfn as the key for
the g_hash_table(). This simplifies the codes and the future PASID
extension.

To prevent being slower for past vtd_find_as_from_bus_num() callers, a
vtd_as cache indexed by the bus number is introduced to store the last
recent search result of a vtd_as belongs to a specific bus.

Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221028061436.30093-3-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
20 months agointel-iommu: don't warn guest errors when getting rid2pasid entry
Jason Wang [Fri, 28 Oct 2022 06:14:33 +0000 (14:14 +0800)]
intel-iommu: don't warn guest errors when getting rid2pasid entry

We use to warn on wrong rid2pasid entry. But this error could be
triggered by the guest and could happens during initialization. So
let's don't warn in this case.

Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221028061436.30093-2-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
20 months agovfio: move implement of vfio_get_xlat_addr() to memory.c
Cindy Lu [Mon, 31 Oct 2022 03:10:19 +0000 (11:10 +0800)]
vfio: move implement of vfio_get_xlat_addr() to memory.c

- Move the implement vfio_get_xlat_addr to softmmu/memory.c, and
  change the name to memory_get_xlat_addr(). So we can use this
  function on other devices, such as vDPA device.
- Add a new function vfio_get_xlat_addr in vfio/common.c, and it will check
  whether the memory is backed by a discard manager. then device can
  have its own warning.

Signed-off-by: Cindy Lu <lulu@redhat.com>
Message-Id: <20221031031020.1405111-2-lulu@redhat.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agotests: virt: Update expected *.acpihmatvirt tables
Hesham Almatary [Thu, 27 Oct 2022 10:00:37 +0000 (11:00 +0100)]
tests: virt: Update expected *.acpihmatvirt tables

* Expected ACPI Data Table [HMAT]
[000h 0000   4]                    Signature : "HMAT"    [Heterogeneous
Memory Attributes Table]
[004h 0004   4]                 Table Length : 00000120
[008h 0008   1]                     Revision : 02
[009h 0009   1]                     Checksum : 4F
[00Ah 0010   6]                       Oem ID : "BOCHS "
[010h 0016   8]                 Oem Table ID : "BXPC    "
[018h 0024   4]                 Oem Revision : 00000001
[01Ch 0028   4]              Asl Compiler ID : "BXPC"
[020h 0032   4]        Asl Compiler Revision : 00000001

[024h 0036   4]                     Reserved : 00000000

[028h 0040   2]               Structure Type : 0000 [Memory Proximity
Domain Attributes]
[02Ah 0042   2]                     Reserved : 0000
[02Ch 0044   4]                       Length : 00000028
[030h 0048   2]        Flags (decoded below) : 0001
            Processor Proximity Domain Valid : 1
[032h 0050   2]                    Reserved1 : 0000
[034h 0052   4]   Processor Proximity Domain : 00000000
[038h 0056   4]      Memory Proximity Domain : 00000000
[03Ch 0060   4]                    Reserved2 : 00000000
[040h 0064   8]                    Reserved3 : 0000000000000000
[048h 0072   8]                    Reserved4 : 0000000000000000

[050h 0080   2]               Structure Type : 0000 [Memory Proximity
Domain Attributes]
[052h 0082   2]                     Reserved : 0000
[054h 0084   4]                       Length : 00000028
[058h 0088   2]        Flags (decoded below) : 0001
            Processor Proximity Domain Valid : 1
[05Ah 0090   2]                    Reserved1 : 0000
[05Ch 0092   4]   Processor Proximity Domain : 00000001
[060h 0096   4]      Memory Proximity Domain : 00000001
[064h 0100   4]                    Reserved2 : 00000000
[068h 0104   8]                    Reserved3 : 0000000000000000
[070h 0112   8]                    Reserved4 : 0000000000000000

[078h 0120   2]               Structure Type : 0000 [Memory Proximity
Domain Attributes]
[07Ah 0122   2]                     Reserved : 0000
[07Ch 0124   4]                       Length : 00000028
[080h 0128   2]        Flags (decoded below) : 0000
            Processor Proximity Domain Valid : 0
[082h 0130   2]                    Reserved1 : 0000
[084h 0132   4]   Processor Proximity Domain : 00000080
[088h 0136   4]      Memory Proximity Domain : 00000002
[08Ch 0140   4]                    Reserved2 : 00000000
[040h 0064   8]                    Reserved3 : 0000000000000000
[048h 0072   8]                    Reserved4 : 0000000000000000

[050h 0080   2]               Structure Type : 0000 [Memory Proximity
Domain Attributes]
[052h 0082   2]                     Reserved : 0000
[054h 0084   4]                       Length : 00000028
[058h 0088   2]        Flags (decoded below) : 0001
            Processor Proximity Domain Valid : 1
[05Ah 0090   2]                    Reserved1 : 0000
[05Ch 0092   4]   Processor Proximity Domain : 00000001
[060h 0096   4]      Memory Proximity Domain : 00000001
[064h 0100   4]                    Reserved2 : 00000000
[068h 0104   8]                    Reserved3 : 0000000000000000
[070h 0112   8]                    Reserved4 : 0000000000000000

[078h 0120   2]               Structure Type : 0000 [Memory Proximity
Domain Attributes]
[07Ah 0122   2]                     Reserved : 0000
[07Ch 0124   4]                       Length : 00000028
[080h 0128   2]        Flags (decoded below) : 0000
            Processor Proximity Domain Valid : 0
[082h 0130   2]                    Reserved1 : 0000
[084h 0132   4]   Processor Proximity Domain : 00000080
[088h 0136   4]      Memory Proximity Domain : 00000002
[08Ch 0140   4]                    Reserved2 : 00000000
[090h 0144   8]                    Reserved3 : 0000000000000000
[098h 0152   8]                    Reserved4 : 0000000000000000

[0A0h 0160   2]               Structure Type : 0001 [System Locality
Latency and Bandwidth Information]
[0A2h 0162   2]                     Reserved : 0000
[0A4h 0164   4]                       Length : 00000040
[0A8h 0168   1]        Flags (decoded below) : 00
                            Memory Hierarchy : 0
[0A9h 0169   1]                    Data Type : 00
[0AAh 0170   2]                    Reserved1 : 0000
[0ACh 0172   4] Initiator Proximity Domains # : 00000002
[0B0h 0176   4]   Target Proximity Domains # : 00000003
[0B4h 0180   4]                    Reserved2 : 00000000
[0B8h 0184   8]              Entry Base Unit : 0000000000002710
[0C0h 0192   4] Initiator Proximity Domain List : 00000000
[0C4h 0196   4] Initiator Proximity Domain List : 00000001
[0C8h 0200   4] Target Proximity Domain List : 00000000
[0CCh 0204   4] Target Proximity Domain List : 00000001
[0D0h 0208   4] Target Proximity Domain List : 00000002
[0D4h 0212   2]                        Entry : 0001
[0D6h 0214   2]                        Entry : 0002
[0D8h 0216   2]                        Entry : 0003
[0DAh 0218   2]                        Entry : 0002
[0DCh 0220   2]                        Entry : 0001
[0DEh 0222   2]                        Entry : 0003

[0E0h 0224   2]               Structure Type : 0001 [System Locality
Latency and Bandwidth Information]
[0E2h 0226   2]                     Reserved : 0000
[0E4h 0228   4]                       Length : 00000040
[0E8h 0232   1]        Flags (decoded below) : 00
                            Memory Hierarchy : 0
[0E9h 0233   1]                    Data Type : 03
[0EAh 0234   2]                    Reserved1 : 0000
[0ECh 0236   4] Initiator Proximity Domains # : 00000002
[0F0h 0240   4]   Target Proximity Domains # : 00000003
[0F4h 0244   4]                    Reserved2 : 00000000
[0F8h 0248   8]              Entry Base Unit : 0000000000000001
[100h 0256   4] Initiator Proximity Domain List : 00000000
[104h 0260   4] Initiator Proximity Domain List : 00000001
[108h 0264   4] Target Proximity Domain List : 00000000
[10Ch 0268   4] Target Proximity Domain List : 00000001
[110h 0272   4] Target Proximity Domain List : 00000002
[114h 0276   2]                        Entry : 000A
[116h 0278   2]                        Entry : 0005
[118h 0280   2]                        Entry : 0001
[11Ah 0282   2]                        Entry : 0005
[11Ch 0284   2]                        Entry : 000A
[11Eh 0286   2]                        Entry : 0001

Raw Table Data: Length 288 (0x120)

    0000: 48 4D 41 54 20 01 00 00 02 4F 42 4F 43 48 53 20  // HMAT
....OBOCHS
    0010: 42 58 50 43 20 20 20 20 01 00 00 00 42 58 50 43  // BXPC
....BXPC
    0020: 01 00 00 00 00 00 00 00 00 00 00 00 28 00 00 00  //
............(...
    0030: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  //
................
    0040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  //
................
    0050: 00 00 00 00 28 00 00 00 01 00 00 00 01 00 00 00  //
....(...........
    0060: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  //
................
    0070: 00 00 00 00 00 00 00 00 00 00 00 00 28 00 00 00  //
............(...
    0080: 00 00 00 00 80 00 00 00 02 00 00 00 00 00 00 00  //
................
    0090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  //
................
    00A0: 01 00 00 00 40 00 00 00 00 00 00 00 02 00 00 00  //
....@...........
    00B0: 03 00 00 00 00 00 00 00 10 27 00 00 00 00 00 00  //
.........'......
    00C0: 00 00 00 00 01 00 00 00 00 00 00 00 01 00 00 00  //
................
    00D0: 02 00 00 00 01 00 02 00 03 00 02 00 01 00 03 00  //
................
    00E0: 01 00 00 00 40 00 00 00 00 03 00 00 02 00 00 00  //
....@...........
    00F0: 03 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  //
................
    0100: 00 00 00 00 01 00 00 00 00 00 00 00 01 00 00 00  //
................
    0110: 02 00 00 00 0A 00 05 00 01 00 05 00 0A 00 01 00  //
................

Signed-off-by: Hesham Almatary <hesham.almatary@huawei.com>
Message-Id: <20221027100037.251-9-hesham.almatary@huawei.com>
Tested-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agotests: acpi: aarch64/virt: add a test for hmat nodes with no initiators
Hesham Almatary [Thu, 27 Oct 2022 10:00:36 +0000 (11:00 +0100)]
tests: acpi: aarch64/virt: add a test for hmat nodes with no initiators

This patch imitates the "tests: acpi: q35: add test for hmat nodes
without initiators" commit to test numa nodes with different HMAT
attributes, but on AArch64/virt.

Tested with:
qemu-system-aarch64 -accel tcg \
-machine virt,hmat=on,gic-version=3  -cpu cortex-a57 \
-bios qemu-efi-aarch64/QEMU_EFI.fd \
-kernel Image -append "root=/dev/vda2 console=ttyAMA0" \
-drive if=virtio,file=aarch64.qcow2,format=qcow2,id=hd \
-device virtio-rng-pci \
-net user,hostfwd=tcp::10022-:22 -net nic \
-device intel-hda -device hda-duplex -nographic \
-smp 4 \
-m 3G \
-object memory-backend-ram,size=1G,id=ram0 \
-object memory-backend-ram,size=1G,id=ram1 \
-object memory-backend-ram,size=1G,id=ram2 \
-numa node,nodeid=0,memdev=ram0,cpus=0-1 \
-numa node,nodeid=1,memdev=ram1,cpus=2-3 \
-numa node,nodeid=2,memdev=ram2 \
-numa
hmat-lb,initiator=0,target=0,hierarchy=memory,data-type=access-latency,latency=10 \
-numa hmat-lb,initiator=0,target=0,hierarchy=memory,data-type=access-bandwidth,bandwidth=10485760 \
-numa hmat-lb,initiator=0,target=1,hierarchy=memory,data-type=access-latency,latency=20 \
-numa hmat-lb,initiator=0,target=1,hierarchy=memory,data-type=access-bandwidth,bandwidth=5242880 \
-numa hmat-lb,initiator=0,target=2,hierarchy=memory,data-type=access-latency,latency=30 \
-numa hmat-lb,initiator=0,target=2,hierarchy=memory,data-type=access-bandwidth,bandwidth=1048576 \
-numa hmat-lb,initiator=1,target=0,hierarchy=memory,data-type=access-latency,latency=20 \
-numa hmat-lb,initiator=1,target=0,hierarchy=memory,data-type=access-bandwidth,bandwidth=5242880 \
-numa hmat-lb,initiator=1,target=1,hierarchy=memory,data-type=access-latency,latency=10 \
-numa hmat-lb,initiator=1,target=1,hierarchy=memory,data-type=access-bandwidth,bandwidth=10485760 \
-numa hmat-lb,initiator=1,target=2,hierarchy=memory,data-type=access-latency,latency=30 \
-numa hmat-lb,initiator=1,target=2,hierarchy=memory,data-type=access-bandwidth,bandwidth=1048576

Signed-off-by: Hesham Almatary <hesham.almatary@huawei.com>
Message-Id: <20221027100037.251-8-hesham.almatary@huawei.com>
Tested-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agohw/arm/virt: Enable HMAT on arm virt machine
Xiang Chen [Thu, 27 Oct 2022 10:00:35 +0000 (11:00 +0100)]
hw/arm/virt: Enable HMAT on arm virt machine

Since the patchset ("Build ACPI Heterogeneous Memory Attribute Table (HMAT)"),
HMAT is supported, but only x86 is enabled. Enable HMAT on arm virt machine.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: Hesham Almatary <hesham.almatary@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221027100037.251-7-hesham.almatary@huawei.com>
Tested-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agotests: Add HMAT AArch64/virt empty table files
Hesham Almatary [Thu, 27 Oct 2022 10:00:34 +0000 (11:00 +0100)]
tests: Add HMAT AArch64/virt empty table files

Signed-off-by: Hesham Almatary <hesham.almatary@huawei.com>
Message-Id: <20221027100037.251-6-hesham.almatary@huawei.com>
Tested-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agotests: acpi: q35: update expected blobs *.hmat-noinitiators expected HMAT:
Brice Goglin [Thu, 27 Oct 2022 10:00:33 +0000 (11:00 +0100)]
tests: acpi: q35: update expected blobs *.hmat-noinitiators expected HMAT:

[000h 0000   4]                    Signature : "HMAT"    [Heterogeneous Memory Attributes Table]
[004h 0004   4]                 Table Length : 00000120
[008h 0008   1]                     Revision : 02
[009h 0009   1]                     Checksum : 4F
[00Ah 0010   6]                       Oem ID : "BOCHS "
[010h 0016   8]                 Oem Table ID : "BXPC    "
[018h 0024   4]                 Oem Revision : 00000001
[01Ch 0028   4]              Asl Compiler ID : "BXPC"
[020h 0032   4]        Asl Compiler Revision : 00000001

[024h 0036   4]                     Reserved : 00000000

[028h 0040   2]               Structure Type : 0000 [Memory Proximity Domain Attributes]
[02Ah 0042   2]                     Reserved : 0000
[02Ch 0044   4]                       Length : 00000028
[030h 0048   2]        Flags (decoded below) : 0001
            Processor Proximity Domain Valid : 1
[032h 0050   2]                    Reserved1 : 0000
[034h 0052   4] Attached Initiator Proximity Domain : 00000000
[038h 0056   4]      Memory Proximity Domain : 00000000
[03Ch 0060   4]                    Reserved2 : 00000000
[040h 0064   8]                    Reserved3 : 0000000000000000
[048h 0072   8]                    Reserved4 : 0000000000000000

[050h 0080   2]               Structure Type : 0000 [Memory Proximity Domain Attributes]
[052h 0082   2]                     Reserved : 0000
[054h 0084   4]                       Length : 00000028
[058h 0088   2]        Flags (decoded below) : 0001
            Processor Proximity Domain Valid : 1
[05Ah 0090   2]                    Reserved1 : 0000
[05Ch 0092   4] Attached Initiator Proximity Domain : 00000001
[060h 0096   4]      Memory Proximity Domain : 00000001
[064h 0100   4]                    Reserved2 : 00000000
[068h 0104   8]                    Reserved3 : 0000000000000000
[070h 0112   8]                    Reserved4 : 0000000000000000

[078h 0120   2]               Structure Type : 0000 [Memory Proximity Domain Attributes]
[07Ah 0122   2]                     Reserved : 0000
[07Ch 0124   4]                       Length : 00000028
[080h 0128   2]        Flags (decoded below) : 0000
            Processor Proximity Domain Valid : 0
[082h 0130   2]                    Reserved1 : 0000
[084h 0132   4] Attached Initiator Proximity Domain : 00000080
[088h 0136   4]      Memory Proximity Domain : 00000002
[08Ch 0140   4]                    Reserved2 : 00000000
[090h 0144   8]                    Reserved3 : 0000000000000000
[098h 0152   8]                    Reserved4 : 0000000000000000

[0A0h 0160   2]               Structure Type : 0001 [System Locality Latency and Bandwidth Information]
[0A2h 0162   2]                     Reserved : 0000
[0A4h 0164   4]                       Length : 00000040
[0A8h 0168   1]        Flags (decoded below) : 00
                            Memory Hierarchy : 0
[0A9h 0169   1]                    Data Type : 00
[0AAh 0170   2]                    Reserved1 : 0000
[0ACh 0172   4] Initiator Proximity Domains # : 00000002
[0B0h 0176   4]   Target Proximity Domains # : 00000003
[0B4h 0180   4]                    Reserved2 : 00000000
[0B8h 0184   8]              Entry Base Unit : 0000000000002710
[0C0h 0192   4] Initiator Proximity Domain List : 00000000
[0C4h 0196   4] Initiator Proximity Domain List : 00000001
[0C8h 0200   4] Target Proximity Domain List : 00000000
[0CCh 0204   4] Target Proximity Domain List : 00000001
[0D0h 0208   4] Target Proximity Domain List : 00000002
[0D4h 0212   2]                        Entry : 0001
[0D6h 0214   2]                        Entry : 0002
[0D8h 0216   2]                        Entry : 0003
[0DAh 0218   2]                        Entry : 0002
[0DCh 0220   2]                        Entry : 0001
[0DEh 0222   2]                        Entry : 0003

[0E0h 0224   2]               Structure Type : 0001 [System Locality Latency and Bandwidth Information]
[0E2h 0226   2]                     Reserved : 0000
[0E4h 0228   4]                       Length : 00000040
[0E8h 0232   1]        Flags (decoded below) : 00
                            Memory Hierarchy : 0
[0E9h 0233   1]                    Data Type : 03
[0EAh 0234   2]                    Reserved1 : 0000
[0ECh 0236   4] Initiator Proximity Domains # : 00000002
[0F0h 0240   4]   Target Proximity Domains # : 00000003
[0F4h 0244   4]                    Reserved2 : 00000000
[0F8h 0248   8]              Entry Base Unit : 0000000000000001
[100h 0256   4] Initiator Proximity Domain List : 00000000
[104h 0260   4] Initiator Proximity Domain List : 00000001
[108h 0264   4] Target Proximity Domain List : 00000000
[10Ch 0268   4] Target Proximity Domain List : 00000001
[110h 0272   4] Target Proximity Domain List : 00000002
[114h 0276   2]                        Entry : 000A
[116h 0278   2]                        Entry : 0005
[118h 0280   2]                        Entry : 0001
[11Ah 0282   2]                        Entry : 0005
[11Ch 0284   2]                        Entry : 000A
[11Eh 0286   2]                        Entry : 0001

Raw Table Data: Length 288 (0x120)

    0000: 48 4D 41 54 20 01 00 00 02 4F 42 4F 43 48 53 20  // HMAT ....OBOCHS
    0010: 42 58 50 43 20 20 20 20 01 00 00 00 42 58 50 43  // BXPC    ....BXPC
    0020: 01 00 00 00 00 00 00 00 00 00 00 00 28 00 00 00  // ............(...
    0030: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  // ................
    0040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  // ................
    0050: 00 00 00 00 28 00 00 00 01 00 00 00 01 00 00 00  // ....(...........
    0060: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  // ................
    0070: 00 00 00 00 00 00 00 00 00 00 00 00 28 00 00 00  // ............(...
    0080: 00 00 00 00 80 00 00 00 02 00 00 00 00 00 00 00  // ................
    0090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  // ................
    00A0: 01 00 00 00 40 00 00 00 00 00 00 00 02 00 00 00  // ....@...........
    00B0: 03 00 00 00 00 00 00 00 10 27 00 00 00 00 00 00  // .........'......
    00C0: 00 00 00 00 01 00 00 00 00 00 00 00 01 00 00 00  // ................
    00D0: 02 00 00 00 01 00 02 00 03 00 02 00 01 00 03 00  // ................
    00E0: 01 00 00 00 40 00 00 00 00 03 00 00 02 00 00 00  // ....@...........
    00F0: 03 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  // ................
    0100: 00 00 00 00 01 00 00 00 00 00 00 00 01 00 00 00  // ................
    0110: 02 00 00 00 0A 00 05 00 01 00 05 00 0A 00 01 00  // ................

Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr>
Signed-off-by: Hesham Almatary <hesham.almatary@huawei.com>
Message-Id: <20221027100037.251-5-hesham.almatary@huawei.com>
Tested-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agotests: acpi: q35: add test for hmat nodes without initiators
Brice Goglin [Thu, 27 Oct 2022 10:00:32 +0000 (11:00 +0100)]
tests: acpi: q35: add test for hmat nodes without initiators

expected HMAT:

[000h 0000   4]                    Signature : "HMAT"    [Heterogeneous Memory Attributes Table]
[004h 0004   4]                 Table Length : 00000120
[008h 0008   1]                     Revision : 02
[009h 0009   1]                     Checksum : 4F
[00Ah 0010   6]                       Oem ID : "BOCHS "
[010h 0016   8]                 Oem Table ID : "BXPC    "
[018h 0024   4]                 Oem Revision : 00000001
[01Ch 0028   4]              Asl Compiler ID : "BXPC"
[020h 0032   4]        Asl Compiler Revision : 00000001

[024h 0036   4]                     Reserved : 00000000

[028h 0040   2]               Structure Type : 0000 [Memory Proximity Domain Attributes]
[02Ah 0042   2]                     Reserved : 0000
[02Ch 0044   4]                       Length : 00000028
[030h 0048   2]        Flags (decoded below) : 0001
            Processor Proximity Domain Valid : 1
[032h 0050   2]                    Reserved1 : 0000
[034h 0052   4] Attached Initiator Proximity Domain : 00000000
[038h 0056   4]      Memory Proximity Domain : 00000000
[03Ch 0060   4]                    Reserved2 : 00000000
[040h 0064   8]                    Reserved3 : 0000000000000000
[048h 0072   8]                    Reserved4 : 0000000000000000

[050h 0080   2]               Structure Type : 0000 [Memory Proximity Domain Attributes]
[052h 0082   2]                     Reserved : 0000
[054h 0084   4]                       Length : 00000028
[058h 0088   2]        Flags (decoded below) : 0001
            Processor Proximity Domain Valid : 1
[05Ah 0090   2]                    Reserved1 : 0000
[05Ch 0092   4] Attached Initiator Proximity Domain : 00000001
[060h 0096   4]      Memory Proximity Domain : 00000001
[064h 0100   4]                    Reserved2 : 00000000
[068h 0104   8]                    Reserved3 : 0000000000000000
[070h 0112   8]                    Reserved4 : 0000000000000000

[078h 0120   2]               Structure Type : 0000 [Memory Proximity Domain Attributes]
[07Ah 0122   2]                     Reserved : 0000
[07Ch 0124   4]                       Length : 00000028
[080h 0128   2]        Flags (decoded below) : 0000
            Processor Proximity Domain Valid : 0
[082h 0130   2]                    Reserved1 : 0000
[084h 0132   4] Attached Initiator Proximity Domain : 00000080
[088h 0136   4]      Memory Proximity Domain : 00000002
[08Ch 0140   4]                    Reserved2 : 00000000
[090h 0144   8]                    Reserved3 : 0000000000000000
[098h 0152   8]                    Reserved4 : 0000000000000000

[0A0h 0160   2]               Structure Type : 0001 [System Locality Latency and Bandwidth Information]
[0A2h 0162   2]                     Reserved : 0000
[0A4h 0164   4]                       Length : 00000040
[0A8h 0168   1]        Flags (decoded below) : 00
                            Memory Hierarchy : 0
[0A9h 0169   1]                    Data Type : 00
[0AAh 0170   2]                    Reserved1 : 0000
[0ACh 0172   4] Initiator Proximity Domains # : 00000002
[0B0h 0176   4]   Target Proximity Domains # : 00000003
[0B4h 0180   4]                    Reserved2 : 00000000
[0B8h 0184   8]              Entry Base Unit : 0000000000002710
[0C0h 0192   4] Initiator Proximity Domain List : 00000000
[0C4h 0196   4] Initiator Proximity Domain List : 00000001
[0C8h 0200   4] Target Proximity Domain List : 00000000
[0CCh 0204   4] Target Proximity Domain List : 00000001
[0D0h 0208   4] Target Proximity Domain List : 00000002
[0D4h 0212   2]                        Entry : 0001
[0D6h 0214   2]                        Entry : 0002
[0D8h 0216   2]                        Entry : 0003
[0DAh 0218   2]                        Entry : 0002
[0DCh 0220   2]                        Entry : 0001
[0DEh 0222   2]                        Entry : 0003

[0E0h 0224   2]               Structure Type : 0001 [System Locality Latency and Bandwidth Information]
[0E2h 0226   2]                     Reserved : 0000
[0E4h 0228   4]                       Length : 00000040
[0E8h 0232   1]        Flags (decoded below) : 00
                            Memory Hierarchy : 0
[0E9h 0233   1]                    Data Type : 03
[0EAh 0234   2]                    Reserved1 : 0000
[0ECh 0236   4] Initiator Proximity Domains # : 00000002
[0F0h 0240   4]   Target Proximity Domains # : 00000003
[0F4h 0244   4]                    Reserved2 : 00000000
[0F8h 0248   8]              Entry Base Unit : 0000000000000001
[100h 0256   4] Initiator Proximity Domain List : 00000000
[104h 0260   4] Initiator Proximity Domain List : 00000001
[108h 0264   4] Target Proximity Domain List : 00000000
[10Ch 0268   4] Target Proximity Domain List : 00000001
[110h 0272   4] Target Proximity Domain List : 00000002
[114h 0276   2]                        Entry : 000A
[116h 0278   2]                        Entry : 0005
[118h 0280   2]                        Entry : 0001
[11Ah 0282   2]                        Entry : 0005
[11Ch 0284   2]                        Entry : 000A
[11Eh 0286   2]                        Entry : 0001

Raw Table Data: Length 288 (0x120)

    0000: 48 4D 41 54 20 01 00 00 02 4F 42 4F 43 48 53 20  // HMAT ....OBOCHS
    0010: 42 58 50 43 20 20 20 20 01 00 00 00 42 58 50 43  // BXPC    ....BXPC
    0020: 01 00 00 00 00 00 00 00 00 00 00 00 28 00 00 00  // ............(...
    0030: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  // ................
    0040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  // ................
    0050: 00 00 00 00 28 00 00 00 01 00 00 00 01 00 00 00  // ....(...........
    0060: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  // ................
    0070: 00 00 00 00 00 00 00 00 00 00 00 00 28 00 00 00  // ............(...
    0080: 00 00 00 00 80 00 00 00 02 00 00 00 00 00 00 00  // ................
    0090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  // ................
    00A0: 01 00 00 00 40 00 00 00 00 00 00 00 02 00 00 00  // ....@...........
    00B0: 03 00 00 00 00 00 00 00 10 27 00 00 00 00 00 00  // .........'......
    00C0: 00 00 00 00 01 00 00 00 00 00 00 00 01 00 00 00  // ................
    00D0: 02 00 00 00 01 00 02 00 03 00 02 00 01 00 03 00  // ................
    00E0: 01 00 00 00 40 00 00 00 00 03 00 00 02 00 00 00  // ....@...........
    00F0: 03 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  // ................
    0100: 00 00 00 00 01 00 00 00 00 00 00 00 01 00 00 00  // ................
    0110: 02 00 00 00 0A 00 05 00 01 00 05 00 0A 00 01 00  // ................

Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr>
Signed-off-by: Hesham Almatary <hesham.almatary@huawei.com>
Message-Id: <20221027100037.251-4-hesham.almatary@huawei.com>
Tested-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agotests: acpi: add and whitelist *.hmat-noinitiator expected blobs
Brice Goglin [Thu, 27 Oct 2022 10:00:31 +0000 (11:00 +0100)]
tests: acpi: add and whitelist *.hmat-noinitiator expected blobs

.. which will be used by follow up hmat-noinitiator test-case.

Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr>
Signed-off-by: Hesham Almatary <hesham.almatary@huawei.com>
Message-Id: <20221027100037.251-3-hesham.almatary@huawei.com>
Tested-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agohmat acpi: Don't require initiator value in -numa
Brice Goglin [Thu, 27 Oct 2022 10:00:30 +0000 (11:00 +0100)]
hmat acpi: Don't require initiator value in -numa

The "Memory Proximity Domain Attributes" structure of the ACPI HMAT
has a "Processor Proximity Domain Valid" flag that is currently
always set because Qemu -numa requires an initiator=X value
when hmat=on. Unsetting this flag allows to create more complex
memory topologies by having multiple best initiators for a single
memory target.

This patch allows -numa without initiator=X when hmat=on by keeping
the default value MAX_NODES in numa_state->nodes[i].initiator.
All places reading numa_state->nodes[i].initiator already check
whether it's different from MAX_NODES before using it.

Tested with
qemu-system-x86_64 -accel kvm \
 -machine pc,hmat=on \
 -drive if=pflash,format=raw,file=./OVMF.fd \
 -drive media=disk,format=qcow2,file=efi.qcow2 \
 -smp 4 \
 -m 3G \
 -object memory-backend-ram,size=1G,id=ram0 \
 -object memory-backend-ram,size=1G,id=ram1 \
 -object memory-backend-ram,size=1G,id=ram2 \
 -numa node,nodeid=0,memdev=ram0,cpus=0-1 \
 -numa node,nodeid=1,memdev=ram1,cpus=2-3 \
 -numa node,nodeid=2,memdev=ram2 \
 -numa hmat-lb,initiator=0,target=0,hierarchy=memory,data-type=access-latency,latency=10 \
 -numa hmat-lb,initiator=0,target=0,hierarchy=memory,data-type=access-bandwidth,bandwidth=10485760 \
 -numa hmat-lb,initiator=0,target=1,hierarchy=memory,data-type=access-latency,latency=20 \
 -numa hmat-lb,initiator=0,target=1,hierarchy=memory,data-type=access-bandwidth,bandwidth=5242880 \
 -numa hmat-lb,initiator=0,target=2,hierarchy=memory,data-type=access-latency,latency=30 \
 -numa hmat-lb,initiator=0,target=2,hierarchy=memory,data-type=access-bandwidth,bandwidth=1048576 \
 -numa hmat-lb,initiator=1,target=0,hierarchy=memory,data-type=access-latency,latency=20 \
 -numa hmat-lb,initiator=1,target=0,hierarchy=memory,data-type=access-bandwidth,bandwidth=5242880 \
 -numa hmat-lb,initiator=1,target=1,hierarchy=memory,data-type=access-latency,latency=10 \
 -numa hmat-lb,initiator=1,target=1,hierarchy=memory,data-type=access-bandwidth,bandwidth=10485760 \
 -numa hmat-lb,initiator=1,target=2,hierarchy=memory,data-type=access-latency,latency=30 \
 -numa hmat-lb,initiator=1,target=2,hierarchy=memory,data-type=access-bandwidth,bandwidth=1048576
which reports NUMA node2 at same distance from both node0 and node1 as seen in lstopo:
Machine (2966MB total) + Package P#0
  NUMANode P#2 (979MB)
  Group0
    NUMANode P#0 (980MB)
    Core P#0 + PU P#0
    Core P#1 + PU P#1
  Group0
    NUMANode P#1 (1007MB)
    Core P#2 + PU P#2
    Core P#3 + PU P#3

Before this patch, we had to add ",initiator=X" to "-numa node,nodeid=2,memdev=ram2".
The lstopo output difference between initiator=1 and no initiator is:
@@ -1,10 +1,10 @@
 Machine (2966MB total) + Package P#0
+  NUMANode P#2 (979MB)
   Group0
     NUMANode P#0 (980MB)
     Core P#0 + PU P#0
     Core P#1 + PU P#1
   Group0
     NUMANode P#1 (1007MB)
-    NUMANode P#2 (979MB)
     Core P#2 + PU P#2
     Core P#3 + PU P#3

Corresponding changes in the HMAT MPDA structure:
@@ -49,10 +49,10 @@
 [078h 0120   2]               Structure Type : 0000 [Memory Proximity Domain Attributes]
 [07Ah 0122   2]                     Reserved : 0000
 [07Ch 0124   4]                       Length : 00000028
-[080h 0128   2]        Flags (decoded below) : 0001
-            Processor Proximity Domain Valid : 1
+[080h 0128   2]        Flags (decoded below) : 0000
+            Processor Proximity Domain Valid : 0
 [082h 0130   2]                    Reserved1 : 0000
-[084h 0132   4] Attached Initiator Proximity Domain : 00000001
+[084h 0132   4] Attached Initiator Proximity Domain : 00000080
 [088h 0136   4]      Memory Proximity Domain : 00000002
 [08Ch 0140   4]                    Reserved2 : 00000000
 [090h 0144   8]                    Reserved3 : 0000000000000000

Final HMAT SLLB structures:
[0A0h 0160   2]               Structure Type : 0001 [System Locality Latency and Bandwidth Information]
[0A2h 0162   2]                     Reserved : 0000
[0A4h 0164   4]                       Length : 00000040
[0A8h 0168   1]        Flags (decoded below) : 00
                            Memory Hierarchy : 0
[0A9h 0169   1]                    Data Type : 00
[0AAh 0170   2]                    Reserved1 : 0000
[0ACh 0172   4] Initiator Proximity Domains # : 00000002
[0B0h 0176   4]   Target Proximity Domains # : 00000003
[0B4h 0180   4]                    Reserved2 : 00000000
[0B8h 0184   8]              Entry Base Unit : 0000000000002710
[0C0h 0192   4] Initiator Proximity Domain List : 00000000
[0C4h 0196   4] Initiator Proximity Domain List : 00000001
[0C8h 0200   4] Target Proximity Domain List : 00000000
[0CCh 0204   4] Target Proximity Domain List : 00000001
[0D0h 0208   4] Target Proximity Domain List : 00000002
[0D4h 0212   2]                        Entry : 0001
[0D6h 0214   2]                        Entry : 0002
[0D8h 0216   2]                        Entry : 0003
[0DAh 0218   2]                        Entry : 0002
[0DCh 0220   2]                        Entry : 0001
[0DEh 0222   2]                        Entry : 0003

[0E0h 0224   2]               Structure Type : 0001 [System Locality Latency and Bandwidth Information]
[0E2h 0226   2]                     Reserved : 0000
[0E4h 0228   4]                       Length : 00000040
[0E8h 0232   1]        Flags (decoded below) : 00
                            Memory Hierarchy : 0
[0E9h 0233   1]                    Data Type : 03
[0EAh 0234   2]                    Reserved1 : 0000
[0ECh 0236   4] Initiator Proximity Domains # : 00000002
[0F0h 0240   4]   Target Proximity Domains # : 00000003
[0F4h 0244   4]                    Reserved2 : 00000000
[0F8h 0248   8]              Entry Base Unit : 0000000000000001
[100h 0256   4] Initiator Proximity Domain List : 00000000
[104h 0260   4] Initiator Proximity Domain List : 00000001
[108h 0264   4] Target Proximity Domain List : 00000000
[10Ch 0268   4] Target Proximity Domain List : 00000001
[110h 0272   4] Target Proximity Domain List : 00000002
[114h 0276   2]                        Entry : 000A
[116h 0278   2]                        Entry : 0005
[118h 0280   2]                        Entry : 0001
[11Ah 0282   2]                        Entry : 0005
[11Ch 0284   2]                        Entry : 000A
[11Eh 0286   2]                        Entry : 0001

Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr>
Signed-off-by: Hesham Almatary <hesham.almatary@huawei.com>
Reviewed-by: Jingqi Liu <jingqi.liu@intel.com>
Message-Id: <20221027100037.251-2-hesham.almatary@huawei.com>
Tested-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agohw/i386/acpi-build: Resolve north rather than south bridges
Bernhard Beschow [Fri, 28 Oct 2022 10:34:19 +0000 (12:34 +0200)]
hw/i386/acpi-build: Resolve north rather than south bridges

The code currently assumes Q35 iff ICH9 and i440fx iff PIIX. Now that more
AML generation has been moved into the south bridges and since the
machines define themselves primarily through their north bridges, let's
switch to resolving the north bridges for AML generation instead. This
also allows for easier experimentation with different south bridges in
the "pc" machine, e.g. with PIIX4 and VT82xx.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20221028103419.93398-4-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agohw/i386/acpi-build: Resolve redundant attribute
Bernhard Beschow [Fri, 28 Oct 2022 10:34:18 +0000 (12:34 +0200)]
hw/i386/acpi-build: Resolve redundant attribute

The is_piix4 attribute is set once in one location and read once in
another. Doing both in one location allows for removing the attribute
altogether.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221026133110.91828-3-shentey@gmail.com>
Message-Id: <20221028103419.93398-3-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agohw/i386/acpi-build: Remove unused struct
Bernhard Beschow [Fri, 28 Oct 2022 10:34:17 +0000 (12:34 +0200)]
hw/i386/acpi-build: Remove unused struct

Ammends commit b23046abe78f48498a423b802d6d86ba0172d57f 'pc: acpi-build:
simplify PCI bus tree generation'.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221026133110.91828-2-shentey@gmail.com>
Message-Id: <20221028103419.93398-2-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agohw/i386/pc.c: CXL Fixed Memory Window should not reserve e820 in bios
Gregory Price [Wed, 26 Oct 2022 20:59:13 +0000 (16:59 -0400)]
hw/i386/pc.c: CXL Fixed Memory Window should not reserve e820 in bios

Early-boot e820 records will be inserted by the bios/efi/early boot
software and be reported to the kernel via insert_resource.  Later, when
CXL drivers iterate through the regions again, they will insert another
resource and make the RESERVED memory area a child.

This RESERVED memory area causes the memory region to become unusable,
and as a result attempting to create memory regions with

    `cxl create-region ...`

Will fail due to the RESERVED area intersecting with the CXL window.

During boot the following traceback is observed:

0xffffffff81101650 in insert_resource_expand_to_fit ()
0xffffffff83d964c5 in e820__reserve_resources_late ()
0xffffffff83e03210 in pcibios_resource_survey ()
0xffffffff83e04f4a in pcibios_init ()

Which produces a call to reserve the CFMWS area:

(gdb) p *new
$54 = {start = 0x290000000, end = 0x2cfffffff, name = "Reserved",
       flags = 0x200, desc = 0x7, parent = 0x0, sibling = 0x0,
       child = 0x0}

Later the Kernel parses ACPI tables and reserves the exact same area as
the CXL Fixed Memory Window:

0xffffffff811016a4 in insert_resource_conflict ()
                      insert_resource ()
0xffffffff81a81389 in cxl_parse_cfmws ()
0xffffffff818c4a81 in call_handler ()
                      acpi_parse_entries_array ()

(gdb) p/x *new
$59 = {start = 0x290000000, end = 0x2cfffffff, name = "CXL Window 0",
       flags = 0x200, desc = 0x0, parent = 0x0, sibling = 0x0,
       child = 0x0}

This produces the following output in /proc/iomem:

590000000-68fffffff : CXL Window 0
  590000000-68fffffff : Reserved

This reserved area causes `get_free_mem_region()` to fail due to a check
against `__region_intersects()`.  Due to this reserved area, the
intersect check will only ever return REGION_INTERSECTS, which causes
`cxl create-region` to always fail.

Signed-off-by: Gregory Price <gregory.price@memverge.com>
Message-Id: <20221026205912.8579-1-gregory.price@memverge.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
20 months agomsix: Assert that specified vector is in range
Akihiko Odaki [Mon, 29 Aug 2022 08:35:24 +0000 (17:35 +0900)]
msix: Assert that specified vector is in range

There were several different ways to deal with the situation where the
vector specified for a msix function is out of bound:
- early return a function and keep progresssing
- propagate the error to the caller
- mark msix unusable
- assert it is in bound
- just ignore

An out-of-bound vector should not be specified if the device
implementation is correct so let msix functions always assert that the
specified vector is in range.

An exceptional case is virtio-pci, which allows the guest to configure
vectors. For virtio-pci, it is more appropriate to introduce its own
checks because it is sometimes too late to check the vector range in
msix functions.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20220829083524.143640-1-akihiko.odaki@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Yuval Shaia <yuval.shaia.ml@gmail.com>
Signed-off-by: Akihiko Odaki &lt;<a href="mailto:akihiko.odaki@daynix.com" target="_blank">akihiko.odaki@daynix.com</a>&gt;<br>
20 months agoMAINTAINERS: Add qapi/virtio.json to section "virtio"
Markus Armbruster [Thu, 20 Oct 2022 12:04:58 +0000 (14:04 +0200)]
MAINTAINERS: Add qapi/virtio.json to section "virtio"

Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221020120458.80709-1-armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
20 months agohw/acpi/erst.c: Fix memory handling issues
Christian A. Ehrhardt [Mon, 24 Oct 2022 15:42:33 +0000 (17:42 +0200)]
hw/acpi/erst.c: Fix memory handling issues

- Fix memset argument order: The second argument is
  the value, the length goes last.
- Fix an integer overflow reported by Alexander Bulekov.

Both issues allow the guest to overrun the host buffer
allocated for the ERST memory device.

Cc: Eric DeVolder <eric.devolder@oracle.com
Cc: Alexander Bulekov <alxndr@bu.edu>
Cc: qemu-stable@nongnu.org
Fixes: f7e26ffa590 ("ACPI ERST: support for ACPI ERST feature")
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Christian A. Ehrhardt <lk@c--e.de>
Message-Id: <20221024154233.1043347-1-lk@c--e.de>
Fixes: https://gitlab.com/qemu-project/qemu/-/issues/1268
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Eric DeVolder <eric.devolder@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agotests: acpi: update expected blobs
Igor Mammedov [Mon, 17 Oct 2022 10:21:46 +0000 (12:21 +0200)]
tests: acpi: update expected blobs

Expected changes are:
 1) Moving _GPE scope declaration achec of all _E0x methods
   +    Scope (_GPE)
   +    {
   +        Name (_HID, "ACPI0006" /* GPE Block Device */)  // _HID: Hardware ID
   +    }
   +
        Scope (_SB)
        {
            Device (\_SB.PCI0.PRES)
    ============
            \_SB.CPUS.CSCN ()
        }

   -    Scope (_GPE)
   -    {
   -        Name (_HID, "ACPI0006" /* GPE Block Device */)  // _HID: Hardware ID
   -    }

 2) Moving _E01 handler after PCI0 scope is defined
    -    Scope (_GPE)
    -    {
    -        Name (_HID, "ACPI0006" /* GPE Block Device */)  // _HID: Hardware ID
    -        Method (_E01, 0, NotSerialized)  // _Exx: Edge-Triggered GPE
    -        {
    -            Acquire (\_SB.PCI0.BLCK, 0xFFFF)
    -            \_SB.PCI0.PCNT ()
    -            Release (\_SB.PCI0.BLCK)
    -        }
    -    }
    -
         Scope (\_SB.PCI0)
         {
             Name (_CRS, ResourceTemplate ()  // _CRS: Current Resource Settings
    =============
                 }
             }
         }
    +
    +    Scope (_GPE)
    +    {
    +        Method (_E01, 0, NotSerialized)  // _Exx: Edge-Triggered GPE
    +        {
    +            Acquire (\_SB.PCI0.BLCK, 0xFFFF)
    +            \_SB.PCI0.PCNT ()
    +            Release (\_SB.PCI0.BLCK)
    +        }
    +    }
     }

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221017102146.2254096-12-imammedo@redhat.com>

20 months agoacpi: pc/35: sanitize _GPE declaration order
Igor Mammedov [Mon, 17 Oct 2022 10:21:45 +0000 (12:21 +0200)]
acpi: pc/35: sanitize _GPE declaration order

Move _GPE block declaration before it gets referenced by other
hotplug handlers. While at it move PCI hotplug (_E01) handler
after PCI tree description to avoid forward reference to
to not yet declared methods/devices.

PS:
Forward 'usage' usualy is fine as long as it's hidden within
method, however 'iasl' may print warnings. So be nice
to iasl/guest OS and do things in proper order.

PS2: Also follow up patches will move some of hotplug code
from PCI tree to _E01 and that also requires PCI Device
nodes build first, before Scope can reuse that from
global context.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221017102146.2254096-11-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agotests: acpi: pc/q35 whitelist DSDT before \_GPE cleanup
Igor Mammedov [Mon, 17 Oct 2022 10:21:44 +0000 (12:21 +0200)]
tests: acpi: pc/q35 whitelist DSDT before \_GPE cleanup

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221017102146.2254096-10-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agotests: acpi: update expected blobs
Igor Mammedov [Mon, 17 Oct 2022 10:21:43 +0000 (12:21 +0200)]
tests: acpi: update expected blobs

Expected change in q35 tests:
@@ -2797,14 +2797,6 @@ DefinitionBlock ("", "DSDT", 1, "BOCHS ", "BXPC    ", 0x00000001)
 }
     }

-    Scope (_SB.PCI0)
-    {
-        Device (SMB0)
-        {
-            Name (_ADR, 0x001F0003)  // _ADR: Address
-        }
-    }
-
     Scope (_SB)
     {
 Device (HPET)
@@ -3282,6 +3274,11 @@ DefinitionBlock ("", "DSDT", 1, "BOCHS ", "BXPC    ", 0x00000001)
 }
     }

+            Device (SFB)
+            {
+                Name (_ADR, 0x001F0003)  // _ADR: Address
+            }
+
     Method (PCNT, 0, NotSerialized)
     {
     }

Also for ipmismbus test, child 'Device (MI1)' of SMB0 will be moved along with it

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221017102146.2254096-9-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agoacpi: enumerate SMB bridge automatically along with other PCI devices
Igor Mammedov [Mon, 17 Oct 2022 10:21:42 +0000 (12:21 +0200)]
acpi: enumerate SMB bridge automatically along with other PCI devices

to make that happen (bridge sits at _ADR: 0x001F0003),
relax PCI enumeration logic to include devices with *function* > 0
if device has something to say about itself (i.e. has build_dev_aml
callback set).

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221017102146.2254096-8-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agoacpi: add get_dev_aml_func() helper
Igor Mammedov [Mon, 17 Oct 2022 10:21:41 +0000 (12:21 +0200)]
acpi: add get_dev_aml_func() helper

It will be used in followup commits to figure out if
device has it's own, device specific AML block.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221017102146.2254096-7-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Ani Sinha <ani@anisinha.ca>
20 months agotests: acpi: whitelist DSDT before generating ICH9_SMB AML automatically
Igor Mammedov [Mon, 17 Oct 2022 10:21:40 +0000 (12:21 +0200)]
tests: acpi: whitelist DSDT before generating ICH9_SMB AML automatically

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221017102146.2254096-6-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agotests: acpi: update expected DSDT after ISA bridge is moved directly under PCI host...
Igor Mammedov [Mon, 17 Oct 2022 10:21:39 +0000 (12:21 +0200)]
tests: acpi: update expected DSDT after ISA bridge is moved directly under PCI host bridge

example of the change for PC machine with hotplug disabled on root buss (no BSEL case):

 -        Field (PCI0.ISA.P40C, ByteAcc, NoLock, Preserve)
 +        Field (S08.P40C, ByteAcc, NoLock, Preserve)

 ===
 -    Scope (_SB.PCI0)
 -    {
 -        Device (ISA)
 -        {
 -            Name (_ADR, 0x00010000)  // _ADR: Address
 -            OperationRegion (P40C, PCI_Config, 0x60, 0x04)
 ...
 -        }
 -    }
 -
      Scope (_SB)
 ===
 +            Device (S08)
 +            {
 +                Name (_ADR, 0x00010000)  // _ADR: Address
 +                OperationRegion (P40C, PCI_Config, 0x60, 0x04)
 ...
 +            }
 +
              Device (S10)
              {
                  Name (_ADR, 0x00020000)  // _ADR: Address

with hotplug enabled on root bus (i.e. bus has BSEL configured),
a following addtional entries will be seen:

 +                Name (ASUN, One)
 +                Method (_DSM, 4, Serialized)  // _DSM: Device-Specific Method
 +                {
 +                    Local0 = Package (0x02)
 +                        {
 +                            BSEL,
 +                            ASUN
 +                        }
 +                    Return (PDSM (Arg0, Arg1, Arg2, Arg3, Local0))
 +                }

similar changes are expected for Q35 modulo:

 -        Field (PCI0.ISA.PIRQ, ByteAcc, NoLock, Preserve)
 +        Field (SF8.PIRQ, ByteAcc, NoLock, Preserve)

and bridge address

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221017102146.2254096-5-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agoacpi: pc/q35: drop ad-hoc PCI-ISA bridge AML routines and let bus ennumeration genera...
Igor Mammedov [Mon, 17 Oct 2022 10:21:38 +0000 (12:21 +0200)]
acpi: pc/q35: drop ad-hoc PCI-ISA bridge AML routines and let bus ennumeration generate AML

PCI-ISA bridges that are built in PIIX/Q35 are building its own AML
using AcpiDevAmlIf interface. Now build_append_pci_bus_devices()
gained AcpiDevAmlIf interface support to get AML of devices atached
to PCI slots.
So drop ad-hoc build_q35_isa_bridge()/build_piix4_isa_bridge()
and let PCI bus enumeration to include PCI-ISA bridge AML
when it's enumerated by build_append_pci_bus_devices().

AML change is mostly contextual, which moves whole ISA hierarchy
directly under PCI host bridge instead of it being described
as separate \SB.PCI0.ISA block.

Note:
If bus/slot that hosts ISA bridge has BSEL set, it will gain new
ASUN and _DMS entries (i.e. acpi-index support, but it should not
cause any functional change and that is fine from PCI Firmware
spec point of view), potentially it's possible to suppress that
by adding a flag to PCIDevice but I don't see a reason to do that
yet, I'd rather treat bridge just as any other PCI device if it's
possible.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221017102146.2254096-4-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agotests: acpi: whitelist DSDT before generating PCI-ISA bridge AML automatically
Igor Mammedov [Mon, 17 Oct 2022 10:21:37 +0000 (12:21 +0200)]
tests: acpi: whitelist DSDT before generating PCI-ISA bridge AML automatically

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221017102146.2254096-3-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agoacpi: pc: vga: use AcpiDevAmlIf interface to build VGA device descriptors
Igor Mammedov [Mon, 17 Oct 2022 10:21:36 +0000 (12:21 +0200)]
acpi: pc: vga: use AcpiDevAmlIf interface to build VGA device descriptors

NB:
We do not expect any functional change in any ACPI tables with this
change. It's only a refactoring.

NB2:
Some targets (or1k) do not support acpi and CONFIG_ACPI is off for them.
However, modules are reused between all architectures so CONFIG_ACPI is
on.  For those architectures, dummy stub function definitions help to
resolve symbols.  This change uses more of these and so it adds a couple
of dummy stub definitions so that symbols for those can be resolved.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221017102146.2254096-2-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Ani Sinha <ani@anisinha.ca>
CC: Bernhard Beschow <shentey@gmail.com>
Signed-off-by: Ani Sinha <ani@anisinha.ca>
Message-Id: <20221107152744.868434-1-ani@anisinha.ca>

20 months agovhost-user: Fix out of order vring host notification handling
Yajun Wu [Tue, 18 Oct 2022 02:36:51 +0000 (10:36 +0800)]
vhost-user: Fix out of order vring host notification handling

vhost backend sends host notification for every VQ. If backend creates
VQs in parallel, the VHOST_USER_SLAVE_VRING_HOST_NOTIFIER_MSG may
arrive to QEMU in different order than incremental queue index order.

For example VQ 1's message arrive earlier than VQ 0's:
After alloc VhostUserHostNotifier for VQ 1. GPtrArray becomes

    [ nil, VQ1 pointer ]

After alloc VhostUserHostNotifier for VQ 0. GPtrArray becomes

    [ VQ0 pointer, nil, VQ1 pointer ]

This is wrong. fetch_notifier will return NULL for VQ 1 in
vhost_user_get_vring_base, causes host notifier miss removal(leak).

The fix is to remove current element from GPtrArray, make the right
position for element to insert.

Fixes: 503e355465 ("virtio/vhost-user: dynamically assign VhostUserHostNotifiers")
Signed-off-by: Yajun Wu <yajunw@nvidia.com>
Acked-by: Parav Pandit <parav@nvidia.com>
Message-Id: <20221018023651.1359420-1-yajunw@nvidia.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agovirtio-rng-pci: Allow setting nvectors, so we can use MSI-X
David Daney [Fri, 14 Oct 2022 16:09:47 +0000 (18:09 +0200)]
virtio-rng-pci: Allow setting nvectors, so we can use MSI-X

Most other virtio-pci devices allow MSI-X, let's have it for rng too.

Signed-off-by: David Daney <david.daney@fungible.com>
Reviewed-by: Marcin Nowakowski <marcin.nowakowski@fungible.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@fungible.com>
Message-Id: <20221014160947.66105-1-philmd@fungible.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agovirtio-net: enable vq reset feature
Xuan Zhuo [Mon, 17 Oct 2022 09:25:58 +0000 (17:25 +0800)]
virtio-net: enable vq reset feature

Add virtqueue reset feature for virtio-net

Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Message-Id: <20221017092558.111082-16-xuanzhuo@linux.alibaba.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agovhost: vhost-kernel: enable vq reset feature
Kangjie Xu [Mon, 17 Oct 2022 09:25:57 +0000 (17:25 +0800)]
vhost: vhost-kernel: enable vq reset feature

Add virtqueue reset feature for vhost-kernel.

Signed-off-by: Kangjie Xu <kangjie.xu@linux.alibaba.com>
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221017092558.111082-15-xuanzhuo@linux.alibaba.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agovirtio-net: support queue_enable
Kangjie Xu [Mon, 17 Oct 2022 09:25:56 +0000 (17:25 +0800)]
virtio-net: support queue_enable

Support queue_enable in vhost-kernel scenario. It can be called when
a vq reset operation has been performed and the vq is restared.

It should be noted that we can restart the vq when the vhost has
already started. When launching a new vhost device, the vhost is not
started and all vqs are not initalized until VIRTIO_PCI_COMMON_STATUS
is written. Thus, we should use vhost_started to differentiate the
two cases: vq reset and device start.

Currently it only supports vhost-kernel.

Signed-off-by: Kangjie Xu <kangjie.xu@linux.alibaba.com>
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221017092558.111082-14-xuanzhuo@linux.alibaba.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agovirtio-net: support queue reset
Xuan Zhuo [Mon, 17 Oct 2022 09:25:55 +0000 (17:25 +0800)]
virtio-net: support queue reset

virtio-net and vhost-kernel implement queue reset.
Queued packets in the corresponding queue pair are flushed
or purged.

For virtio-net, userspace datapath will be disabled later in
__virtio_queue_reset(). It will set addr of vring to 0 and idx to 0.
Thus, virtio_net_receive() and virtio_net_flush_tx() will not receive
or send packets.

For vhost-net, the datapath will be disabled in vhost_net_virtqueue_reset().

Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Signed-off-by: Kangjie Xu <kangjie.xu@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221017092558.111082-13-xuanzhuo@linux.alibaba.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agovirtio-net: introduce flush_or_purge_queued_packets()
Kangjie Xu [Mon, 17 Oct 2022 09:25:54 +0000 (17:25 +0800)]
virtio-net: introduce flush_or_purge_queued_packets()

Introduce the fucntion flush_or_purge_queued_packets(), it will be
used in device reset and virtqueue reset. Therefore, we extract the
common logic as a new function.

Signed-off-by: Kangjie Xu <kangjie.xu@linux.alibaba.com>
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221017092558.111082-12-xuanzhuo@linux.alibaba.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agovhost-net: vhost-kernel: introduce vhost_net_virtqueue_restart()
Kangjie Xu [Mon, 17 Oct 2022 09:25:53 +0000 (17:25 +0800)]
vhost-net: vhost-kernel: introduce vhost_net_virtqueue_restart()

Introduce vhost_net_virtqueue_restart(), which can restart the
specific virtqueue when the vhost net started running before.
If it fails to restart the virtqueue, the device will be stopped.

Here we do not reuse vhost_net_start_one() or vhost_dev_start()
because they work at queue pair level. The mem table and features
do not change, so we can call the vhost_virtqueue_start() to
restart a specific queue.

This patch only considers the case of vhost-kernel, when
NetClientDriver is NET_CLIENT_DRIVER_TAP.

Signed-off-by: Kangjie Xu <kangjie.xu@linux.alibaba.com>
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221017092558.111082-11-xuanzhuo@linux.alibaba.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
20 months agovhost-net: vhost-kernel: introduce vhost_net_virtqueue_reset()
Kangjie Xu [Mon, 17 Oct 2022 09:25:52 +0000 (17:25 +0800)]
vhost-net: vhost-kernel: introduce vhost_net_virtqueue_reset()

Introduce vhost_virtqueue_reset(), which can reset the specific
virtqueue in the device. Then it will unmap vrings and the desc
of the virtqueue.

Here we do not reuse the vhost_net_stop_one() or vhost_dev_stop(),
because they work at queue pair level. We do not use
vhost_virtqueue_stop() because it may stop the device in the
backend.

This patch only considers the case of vhost-kernel, when
NetClientDriver is NET_CLIENT_DRIVER_TAP.

Furthermore, we do not need net->nc->info->poll() because
it enables userspace datapath and we want to stop all
datapaths for this reset virtqueue here.

Signed-off-by: Kangjie Xu <kangjie.xu@linux.alibaba.com>
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221017092558.111082-10-xuanzhuo@linux.alibaba.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>