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2 years agoRevert "qxl: add migration blocker to avoid pre-save assert"
Gerd Hoffmann [Wed, 21 Jul 2021 09:33:47 +0000 (11:33 +0200)]
Revert "qxl: add migration blocker to avoid pre-save assert"

This reverts commit 86dbcdd9c7590d06db89ca256c5eaf0b4aba8858.

The pre-save assert is gone now, so the migration blocker
is not needed any more.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210721093347.338536-3-kraxel@redhat.com>

2 years agoqxl: remove assert in qxl_pre_save.
Gerd Hoffmann [Wed, 21 Jul 2021 09:33:46 +0000 (11:33 +0200)]
qxl: remove assert in qxl_pre_save.

Since commit 551dbd0846d2 ("migration: check pre_save return in
vmstate_save_state") the pre_save hook can fail.  So lets finally
use that to drop the guest-triggerable assert in qxl_pre_save().

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210721093347.338536-2-kraxel@redhat.com>

2 years agohw/display/virtio-gpu: Fix memory leak (CID 1453811)
Philippe Mathieu-Daudé [Mon, 31 May 2021 10:19:28 +0000 (12:19 +0200)]
hw/display/virtio-gpu: Fix memory leak (CID 1453811)

To avoid leaking memory on the error path, reorder the
code as:
- check the parameters first
- check resource already existing
- finally allocate memory

Reported-by: Coverity (CID 1453811: RESOURCE_LEAK)
Fixes: e0933d91b1c ("virtio-gpu: Add virtio_gpu_resource_create_blob")
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210531101928.1662732-1-philmd@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2 years agoUpdate version for v6.1.0-rc0 release
Peter Maydell [Wed, 21 Jul 2021 16:10:15 +0000 (17:10 +0100)]
Update version for v6.1.0-rc0 release

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/stefanha-gitlab/tags/block-pull-request' into...
Peter Maydell [Wed, 21 Jul 2021 13:13:32 +0000 (14:13 +0100)]
Merge remote-tracking branch 'remotes/stefanha-gitlab/tags/block-pull-request' into staging

Pull request

Stefano's performance regression fix for commit 2558cb8dd4 ("linux-aio:
increasing MAX_EVENTS to a larger hardcoded value").

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* remotes/stefanha-gitlab/tags/block-pull-request:
  linux-aio: limit the batch size using `aio-max-batch` parameter
  iothread: add aio-max-batch parameter
  iothread: generalize iothread_set_param/iothread_get_param

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agolinux-aio: limit the batch size using `aio-max-batch` parameter
Stefano Garzarella [Wed, 21 Jul 2021 09:42:11 +0000 (11:42 +0200)]
linux-aio: limit the batch size using `aio-max-batch` parameter

When there are multiple queues attached to the same AIO context,
some requests may experience high latency, since in the worst case
the AIO engine queue is only flushed when it is full (MAX_EVENTS) or
there are no more queues plugged.

Commit 2558cb8dd4 ("linux-aio: increasing MAX_EVENTS to a larger
hardcoded value") changed MAX_EVENTS from 128 to 1024, to increase
the number of in-flight requests. But this change also increased
the potential maximum batch to 1024 elements.

When there is a single queue attached to the AIO context, the issue
is mitigated from laio_io_unplug() that will flush the queue every
time is invoked since there can't be others queue plugged.

Let's use the new `aio-max-batch` IOThread parameter to mitigate
this issue, limiting the number of requests in a batch.

We also define a default value (32): this value is obtained running
some benchmarks and it represents a good tradeoff between the latency
increase while a request is queued and the cost of the io_submit(2)
system call.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20210721094211.69853-4-sgarzare@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2 years agoiothread: add aio-max-batch parameter
Stefano Garzarella [Wed, 21 Jul 2021 09:42:10 +0000 (11:42 +0200)]
iothread: add aio-max-batch parameter

The `aio-max-batch` parameter will be propagated to AIO engines
and it will be used to control the maximum number of queued requests.

When there are in queue a number of requests equal to `aio-max-batch`,
the engine invokes the system call to forward the requests to the kernel.

This parameter allows us to control the maximum batch size to reduce
the latency that requests might accumulate while queued in the AIO
engine queue.

If `aio-max-batch` is equal to 0 (default value), the AIO engine will
use its default maximum batch size value.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20210721094211.69853-3-sgarzare@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2 years agoiothread: generalize iothread_set_param/iothread_get_param
Stefano Garzarella [Wed, 21 Jul 2021 09:42:09 +0000 (11:42 +0200)]
iothread: generalize iothread_set_param/iothread_get_param

Changes in preparation for next patches where we add a new
parameter not related to the poll mechanism.

Let's add two new generic functions (iothread_set_param and
iothread_get_param) that we use to set and get IOThread
parameters.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20210721094211.69853-2-sgarzare@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2 years agoMerge remote-tracking branch 'remotes/cleber-gitlab/tags/python-next-pull-request...
Peter Maydell [Wed, 21 Jul 2021 10:02:25 +0000 (11:02 +0100)]
Merge remote-tracking branch 'remotes/cleber-gitlab/tags/python-next-pull-request' into staging

Acceptance Tests

- Fix for tests/acceptance/virtio-gpu.py to match the change in device
  name
- Fix for failure caught by tests/acceptance/multiprocess.py

PS: While not a maintainer for the subsystem in PATCH 7, I'm including
it as a one-off to facilitate the landing of the fix as discussed in
the mailing list.

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* remotes/cleber-gitlab/tags/python-next-pull-request:
  remote/memory: Replace share parameter with ram_flags
  tests/acceptance/virtio-gpu.py: provide kernel and initrd hashes
  tests/acceptance/virtio-gpu.py: use virtio-vga-gl
  tests/acceptance/virtio-gpu.py: combine kernel command line
  tests/acceptance/virtio-gpu.py: combine CPU tags
  tests/acceptance/virtio-gpu.py: combine x86_64 arch tags
  tests/acceptance/virtio-gpu.py: use require_accelerator()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoremote/memory: Replace share parameter with ram_flags
Yang Zhong [Fri, 9 Jul 2021 05:28:00 +0000 (13:28 +0800)]
remote/memory: Replace share parameter with ram_flags

Fixes: d5015b801340 ("softmmu/memory: Pass ram_flags to
qemu_ram_alloc_from_fd()")

Signed-off-by: Yang Zhong <yang.zhong@intel.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta@ionos.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210709052800.63588-1-yang.zhong@intel.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2 years agotests/acceptance/virtio-gpu.py: provide kernel and initrd hashes
Cleber Rosa [Wed, 14 Jul 2021 17:40:51 +0000 (13:40 -0400)]
tests/acceptance/virtio-gpu.py: provide kernel and initrd hashes

By providing kernel and initrd hashes, the test guarantees the
integrity of the images used and avoids the warnings set by
fetch_asset() when hashes are lacking.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20210714174051.28164-7-crosa@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2 years agotests/acceptance/virtio-gpu.py: use virtio-vga-gl
Cleber Rosa [Wed, 14 Jul 2021 17:40:50 +0000 (13:40 -0400)]
tests/acceptance/virtio-gpu.py: use virtio-vga-gl

Since 49afbca3b, the use of an optional virgl renderer is not
available anymore, and since b36eb8860f, the way to choose a GL based
rendered is to use the "virtio-vga-gl" device.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20210714174051.28164-6-crosa@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2 years agotests/acceptance/virtio-gpu.py: combine kernel command line
Cleber Rosa [Wed, 14 Jul 2021 17:40:49 +0000 (13:40 -0400)]
tests/acceptance/virtio-gpu.py: combine kernel command line

Both tests use the same kernel command line arguments, so there's no
need to have a common and then an additional set of arguments.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20210714174051.28164-5-crosa@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2 years agotests/acceptance/virtio-gpu.py: combine CPU tags
Cleber Rosa [Wed, 14 Jul 2021 17:40:48 +0000 (13:40 -0400)]
tests/acceptance/virtio-gpu.py: combine CPU tags

Like previously done with the arch tags, all tests use the same CPU
value so it's possible to combine them at the class level.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20210714174051.28164-4-crosa@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2 years agotests/acceptance/virtio-gpu.py: combine x86_64 arch tags
Cleber Rosa [Wed, 14 Jul 2021 17:40:47 +0000 (13:40 -0400)]
tests/acceptance/virtio-gpu.py: combine x86_64 arch tags

The test class in question is x86_64 specific, so it's possible to set
the tags at the class level.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20210714174051.28164-3-crosa@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2 years agotests/acceptance/virtio-gpu.py: use require_accelerator()
Cleber Rosa [Wed, 14 Jul 2021 17:40:46 +0000 (13:40 -0400)]
tests/acceptance/virtio-gpu.py: use require_accelerator()

Since efe30d501 there's a shorthand for requiring specific
accelerators, and canceling the test if it's not available.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20210714174051.28164-2-crosa@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2 years agoMerge remote-tracking branch 'remotes/philmd/tags/kconfig-20210720' into staging
Peter Maydell [Tue, 20 Jul 2021 18:30:28 +0000 (19:30 +0100)]
Merge remote-tracking branch 'remotes/philmd/tags/kconfig-20210720' into staging

Kconfig patches queue

Various Kconfig patches collected during v6.1 development cycle.

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* remotes/philmd/tags/kconfig-20210720:
  hw/tricore: fix inclusion of tricore_testboard
  hw/ppc/Kconfig: Add dependency PEGASOS2 -> ATI_VGA
  hw/isa/vt82c686: Add missing Kconfig dependency (runtime error)
  hw/isa/vt82c686: Add missing Kconfig dependencies (build error)
  hw/pci-host/Kconfig: Add missing dependency MV64361 -> I8259
  hw/ppc/Kconfig: Add missing dependency E500 -> DS1338 RTC
  hw/riscv/Kconfig: Restrict NUMA to Virt & Spike machines
  hw/riscv/Kconfig: Add missing dependency MICROCHIP_PFSOC -> SERIAL
  hw/arm/Kconfig: Add missing SDHCI symbol to FSL_IMX25
  hw/arm/Kconfig: Remove unused DS1338 symbol from i.MX25 PDK Board
  hw/arm/Kconfig: Add missing dependency NPCM7XX -> SMBUS
  hw/ide/Kconfig: Add missing dependency PCI -> IDE_QDEV
  hw/i386/Kconfig: Add missing Kconfig dependency (runtime error)
  hw/acpi/Kconfig: Add missing Kconfig dependencies (build error)
  hw/acpi: Do not restrict ACPI core routines to x86 architecture
  hw/mips: Express dependencies of the Boston machine with Kconfig
  hw/mips: Add dependency MIPS_CPS -> MIPS_ITU

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agohw/tricore: fix inclusion of tricore_testboard
Alex Bennée [Tue, 20 Jul 2021 11:40:55 +0000 (12:40 +0100)]
hw/tricore: fix inclusion of tricore_testboard

Because commit f4063f9c319e39 ("meson: Introduce target-specific
Kconfig") ended being merged after commit 582079c9d27fc8cfff9f49
("hw/tricore: Add testdevice for tests in tests/tcg/"), we
inadvertently added a symbol clash causing the build not to include
the testboard needed for check-tcg.

Fixes: f4063f9c31 ("meson: Introduce target-specific Kconfig")
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210720114057.32053-2-alex.bennee@linaro.org>
[PMD: Updated description mentioning commits merged]
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2 years agohw/ppc/Kconfig: Add dependency PEGASOS2 -> ATI_VGA
Philippe Mathieu-Daudé [Fri, 14 May 2021 09:53:20 +0000 (11:53 +0200)]
hw/ppc/Kconfig: Add dependency PEGASOS2 -> ATI_VGA

The ATI VGA device isn't a requisite for the Pegasos2 machine
because Linux only uses the serial console; see commit ba7e5ac18e7
("hw/ppc: Add emulation of Genesi/bPlan Pegasos II") for rationale.

Using the default devices we don't have any problem:

  $ qemu-system-ppc -M pegasos2
  qemu-system-ppc: standard VGA not available

But when trying to explicitly use the ATI device we get an error:

  $ qemu-system-ppc -M pegasos2 -vga none -bios pegasos2.rom -device ati-vga,romfile=
  qemu-system-ppc: -device ati-vga,romfile=: 'ati-vga' is not a valid device model name

Add it as an implicit Kconfig dependency.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210515173716.358295-13-philmd@redhat.com>
Acked-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2 years agohw/isa/vt82c686: Add missing Kconfig dependency (runtime error)
Philippe Mathieu-Daudé [Fri, 14 May 2021 09:56:57 +0000 (11:56 +0200)]
hw/isa/vt82c686: Add missing Kconfig dependency (runtime error)

When building the Pegasos2 machine stand-alone we get:

  $ qemu-system-ppc -M pegasos2 -bios pegasos2.rom
  ERROR:qom/object.c:714:object_new_with_type: assertion failed: (type != NULL)
  Bail out! ERROR:qom/object.c:714:object_new_with_type: assertion failed: (type != NULL)

Looking at the backtraces:

  Thread 1 "qemu-system-ppc" received signal SIGABRT, Aborted.
  (gdb) bt
  #0  0x00007ffff53877d5 in raise () at /lib64/libc.so.6
  #1  0x00007ffff5370895 in abort () at /lib64/libc.so.6
  #2  0x00007ffff6dc4b6c in g_assertion_message_expr.cold () at /lib64/libglib-2.0.so.0
  #3  0x00007ffff6e229ff in g_assertion_message_expr () at /lib64/libglib-2.0.so.0
  #4  0x0000555555a0c8f4 in object_new_with_type (type=0x0) at qom/object.c:714
  #5  0x0000555555a0c9d5 in object_new (typename=0x555555c7afe4 "isa-pit") at qom/object.c:747
  #6  0x0000555555a053b8 in qdev_new (name=0x555555c7afe4 "isa-pit") at hw/core/qdev.c:153
  #7  0x00005555557cdd05 in isa_new (name=0x555555c7afe4 "isa-pit") at hw/isa/isa-bus.c:160
  #8  0x00005555557cf518 in i8254_pit_init (bus=0x55555603d140, base=64, isa_irq=0, alt_irq=0x0) at include/hw/timer/i8254.h:54
  #9  0x00005555557d12f9 in vt8231_realize (d=0x5555563d9770, errp=0x7fffffffcc28) at hw/isa/vt82c686.c:704

  (gdb) bt
  #0  0x00007ffff54bd7d5 in raise () at /lib64/libc.so.6
  #1  0x00007ffff54a6895 in abort () at /lib64/libc.so.6
  #2  0x00005555558f7796 in object_new (typename=0x555555ad4889 "isa-parallel") at qom/object.c:749
  #3  object_new (typename=type0x555555ad4889 "isa-parallel") at qom/object.c:743
  #4  0x00005555558f0d46 in qdev_new (name=0x555555ad4889 "isa-parallel") at hw/core/qdev.c:153
  #5  0x000055555576b669 in isa_new (name=0x555555ad4889 "isa-parallel") at hw/isa/isa-bus.c:160
  #6  0x000055555576bbe8 in isa_superio_realize (dev=0x555555f15910, errp=<optimized out>) at hw/isa/isa-superio.c:54
  #7  0x000055555576d5ed in via_superio_realize (d=0x555555f15910, errp=0x7fffffffcb30) at hw/isa/vt82c686.c:292
  #8  0x00005555558f12c1 in device_set_realized (obj=<optimized out>, ...) at hw/core/qdev.c:761
  #9  0x00005555558f5066 in property_set_bool (obj=0x555555f15910, ..., errp=0x7fffffffcbb0) at qom/object.c:2262
  #10 0x00005555558f7f38 in object_property_set (obj=0x555555f15910, name=0x555555b1b1e3 "realized", ...) at qom/object.c:1407
  #11 0x00005555558fb2d0 in object_property_set_qobject (obj=0x555555f15910, name=0x555555b1b1e3 "realized", ...) at qom/qom-qobject.c:28
  #12 0x00005555558f8525 in object_property_set_bool (obj=0x555555f15910, name=0x555555b1b1e3 "realized", ...) at qom/object.c:1477
  #13 0x00005555558f18ee in qdev_realize (dev=0x555555f15910, bus=0x55555602a610, errp=<optimized out>) at hw/core/qdev.c:389
  #14 0x00005555558f197f in qdev_realize_and_unref (dev=0x555555f15910, bus=0x55555602a610, errp=<optimized out>) at hw/core/qdev.c:396
  #15 0x000055555576b709 in isa_realize_and_unref (errp=<optimized out>, bus=0x55555602a610, dev=0x555555f15910) at hw/isa/isa-bus.c:179
  #16 isa_create_simple (bus=0x55555602a610, name=0x555555adc33b "vt8231-superio") at hw/isa/isa-bus.c:173
  #17 0x000055555576d9b7 in vt8231_realize (d=0x555556186a50, errp=<optimized out>) at hw/isa/vt82c686.c:706

The "isa-pit" type (TYPE_I8254) and "isa-parallel" are missing. Add them.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210515173716.358295-12-philmd@redhat.com>
[PMD: Added "isa-parallel" later]

2 years agohw/isa/vt82c686: Add missing Kconfig dependencies (build error)
Philippe Mathieu-Daudé [Fri, 14 May 2021 09:50:03 +0000 (11:50 +0200)]
hw/isa/vt82c686: Add missing Kconfig dependencies (build error)

The VT82C686 device model misses various dependencies:

  /usr/bin/ld: libcommon.fa.p/hw_isa_vt82c686.c.o: in function `vt82c686b_realize':
  hw/isa/vt82c686.c:622: undefined reference to `i8259_init'
  /usr/bin/ld: hw/isa/vt82c686.c:624: undefined reference to `i8257_dma_init'
  /usr/bin/ld: hw/isa/vt82c686.c:627: undefined reference to `mc146818_rtc_init'

Add them.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210515173716.358295-11-philmd@redhat.com>

2 years agohw/pci-host/Kconfig: Add missing dependency MV64361 -> I8259
Philippe Mathieu-Daudé [Fri, 14 May 2021 09:44:34 +0000 (11:44 +0200)]
hw/pci-host/Kconfig: Add missing dependency MV64361 -> I8259

Looking at the MV64341 model source, there is a dependency on the
8259 interrupt controller:

  523     case MV64340_PCI_1_INTERRUPT_ACKNOWLEDGE_VIRTUAL_REG:
  524         /* FIXME: Should this be sent via the PCI bus somehow? */
  525         if (s->gpp_int_level && (s->gpp_value & BIT(31))) {
  526             ret = pic_read_irq(isa_pic);
  527         }
  528         break;

Add it to Kconfig to avoid the following build failure:

  /usr/bin/ld: libcommon.fa.p/hw_pci-host_mv64361.c.o: in function `mv64361_read':
  hw/pci-host/mv64361.c:526: undefined reference to `isa_pic'
  /usr/bin/ld: hw/pci-host/mv64361.c:526: undefined reference to `pic_read_irq'

Fixes: dcdf98a9015 ("hw/pci-host: Add emulation of Marvell MV64361 PPC system controller")
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20210515173716.358295-10-philmd@redhat.com>

2 years agoMerge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Peter Maydell [Tue, 20 Jul 2021 15:59:33 +0000 (16:59 +0100)]
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

- mirror: Fix active mirror deadlock
- replication: Fix crashes due to operations on wrong BdrvChild
- configure: Add option to use driver whitelist even in tools
- vvfat: Fix crash when opening image read-write
- export: Fix crash in error path with fixed-iothread=false

# gpg: Signature made Tue 20 Jul 2021 16:09:23 BST
# gpg:                using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg:                issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream:
  iotests/307: Test iothread conflict for exports
  block/export: Conditionally ignore set-context error
  block/vvfat: fix: drop backing
  replication: Remove workaround
  replication: Properly attach children
  replication: Reduce usage of s->hidden_disk and s->secondary_disk
  replication: Remove s->active_disk
  block: Add option to use driver whitelist even in tools
  block/mirror: fix active mirror dead-lock in mirror_wait_on_conflicts
  iotest 151: add test-case that shows active mirror dead-lock
  block/mirror: set .co for active-write MirrorOp objects

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoiotests/307: Test iothread conflict for exports
Max Reitz [Thu, 24 Jun 2021 08:38:25 +0000 (10:38 +0200)]
iotests/307: Test iothread conflict for exports

Passing fixed-iothread=true should make iothread conflicts fatal,
whereas fixed-iothread=false should not.

Combine the second case with an error condition that is checked after
the iothread is handled, to verify that qemu does not crash if there is
such an error after changing the iothread failed.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20210624083825.29224-3-mreitz@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Tested-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 years agoblock/export: Conditionally ignore set-context error
Max Reitz [Thu, 24 Jun 2021 08:38:24 +0000 (10:38 +0200)]
block/export: Conditionally ignore set-context error

When invoking block-export-add with some iothread and
fixed-iothread=false, and changing the node's iothread fails, the error
is supposed to be ignored.

However, it is still stored in *errp, which is wrong.  If a second error
occurs, the "*errp must be NULL" assertion in error_setv() fails:

  qemu-system-x86_64: ../util/error.c:59: error_setv: Assertion
  `*errp == NULL' failed.

So if fixed-iothread=false, we should ignore the error by passing NULL
to bdrv_try_set_aio_context().

Fixes: f51d23c80af73c95e0ce703ad06a300f1b3d63ef
       ("block/export: add iothread and fixed-iothread options")
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20210624083825.29224-2-mreitz@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 years agoblock/vvfat: fix: drop backing
Vladimir Sementsov-Ogievskiy [Thu, 15 Jul 2021 12:48:53 +0000 (15:48 +0300)]
block/vvfat: fix: drop backing

Most probably this fake backing child doesn't work anyway (see notes
about it in a8a4d15c1c34d).

Still, since 25f78d9e2de528473d52 drivers are required to set
.supports_backing if they want to call bdrv_set_backing_hd, so now
vvfat just doesn't work because of this check.

Let's finally drop this fake backing file.

Fixes: 25f78d9e2de528473d52acfcf7acdfb64e3453d4
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210715124853.13335-1-vsementsov@virtuozzo.com>
Tested-by: John Arbuckle <programmingkidx@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 years agoreplication: Remove workaround
Lukas Straub [Sun, 18 Jul 2021 14:48:42 +0000 (16:48 +0200)]
replication: Remove workaround

Remove the workaround introduced in commit
6ecbc6c52672db5c13805735ca02784879ce8285
"replication: Avoid blk_make_empty() on read-only child".

It is not needed anymore since s->hidden_disk is guaranteed to be
writable when secondary_do_checkpoint() runs. Because replication_start(),
_do_checkpoint() and _stop() are only called by COLO migration code
and COLO-migration activates all disks via bdrv_invalidate_cache_all()
before it calls these functions.

Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <d3acfad43879e9f376bffa7dd797ae74d0a7c81a.1626619393.git.lukasstraub2@web.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 years agoreplication: Properly attach children
Lukas Straub [Sun, 18 Jul 2021 14:48:33 +0000 (16:48 +0200)]
replication: Properly attach children

The replication driver needs access to the children block-nodes of
it's child so it can issue bdrv_make_empty() and bdrv_co_pwritev()
to manage the replication. However, it does this by directly copying
the BdrvChilds, which is wrong.

Fix this by properly attaching the block-nodes with
bdrv_attach_child() and requesting the required permissions.

This ultimatively fixes a potential crash in replication_co_writev(),
because it may write to s->secondary_disk if it is in state
BLOCK_REPLICATION_FAILOVER_FAILED, without requesting write
permissions first. And now the workaround in
secondary_do_checkpoint() can be removed.

Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <5d0539d729afb8072d0d7cde977c5066285591b4.1626619393.git.lukasstraub2@web.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 years agoreplication: Reduce usage of s->hidden_disk and s->secondary_disk
Lukas Straub [Sun, 18 Jul 2021 14:48:29 +0000 (16:48 +0200)]
replication: Reduce usage of s->hidden_disk and s->secondary_disk

In preparation for the next patch, initialize s->hidden_disk and
s->secondary_disk later and replace access to them with local variables
in the places where they aren't initialized yet.

Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <1eb9dc179267207d9c7eccaeb30761758e32e9ab.1626619393.git.lukasstraub2@web.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 years agoreplication: Remove s->active_disk
Lukas Straub [Sun, 18 Jul 2021 14:48:24 +0000 (16:48 +0200)]
replication: Remove s->active_disk

s->active_disk is bs->file. Remove it and use local variables instead.

Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <2534f867ea9be5b666dfce19744b7d4e2b96c976.1626619393.git.lukasstraub2@web.de>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 years agohw/ppc/Kconfig: Add missing dependency E500 -> DS1338 RTC
Philippe Mathieu-Daudé [Thu, 13 May 2021 13:13:54 +0000 (15:13 +0200)]
hw/ppc/Kconfig: Add missing dependency E500 -> DS1338 RTC

Commit 7abb479c7ab ("PPC: E500: Add FSL I2C controller and integrate
RTC with it") added a global dependency on the DS1338 model, instead
of a machine one (via Kconfig). This gives trouble when building
standalone machines not exposing I2C bus:

  The following clauses were found for DS1338

      CONFIG_DS1338=y
      config DS1338 depends on I2C

Fix by selecting the DS1338 symbol in the single machine requiring
it, the E500.

Fixes: 7abb479c7ab ("PPC: E500: Add FSL I2C controller and integrate RTC with it")
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210513163858.3928976-9-philmd@redhat.com>

2 years agohw/riscv/Kconfig: Restrict NUMA to Virt & Spike machines
Philippe Mathieu-Daudé [Thu, 13 May 2021 06:07:56 +0000 (08:07 +0200)]
hw/riscv/Kconfig: Restrict NUMA to Virt & Spike machines

Only the Virt and Spike machines use NUMA. Add a RISCV_NUMA Kconfig
symbol and only have these machines select it. Adapt the Meson file
to only built it if required.

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210515173716.358295-8-philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
2 years agohw/riscv/Kconfig: Add missing dependency MICROCHIP_PFSOC -> SERIAL
Philippe Mathieu-Daudé [Thu, 13 May 2021 05:50:27 +0000 (07:50 +0200)]
hw/riscv/Kconfig: Add missing dependency MICROCHIP_PFSOC -> SERIAL

Commit a8fb0a500a6 ("hw/char: Add Microchip PolarFire SoC MMUART
emulation") added a dependency on the SERIAL model, but forgot to
add the Kconfig selector.
Add the dependency to the MCHP_PFSOC_MMUART symbol to fix when
building the MICROCHIP_PFSOC machine stand-alone:

  /usr/bin/ld: libcommon.fa.p/hw_char_mchp_pfsoc_mmuart.c.o: in function `mchp_pfsoc_mmuart_create':
  hw/char/mchp_pfsoc_mmuart.c:79: undefined reference to `serial_mm_init'

Fixes: a8fb0a500a6 ("hw/char: Add Microchip PolarFire SoC MMUART emulation")
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210515173716.358295-7-philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2 years agohw/arm/Kconfig: Add missing SDHCI symbol to FSL_IMX25
Philippe Mathieu-Daudé [Thu, 13 May 2021 13:20:23 +0000 (15:20 +0200)]
hw/arm/Kconfig: Add missing SDHCI symbol to FSL_IMX25

Commit bfae1772c43 ("hw/arm/fsl-imx25: Wire up eSDHC controllers")
added a dependency on the TYPE_IMX_USDHC model, but forgot to add
the Kconfig selector. Fix that to solve when built stand-alone:

  $ qemu-system-arm -M imx25-pdk
  qemu-system-arm: missing object type 'imx-usdhc'
  Aborted (core dumped)

Fixes: bfae1772c43 ("hw/arm/fsl-imx25: Wire up eSDHC controllers")
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210515173716.358295-6-philmd@redhat.com>

2 years agohw/arm/Kconfig: Remove unused DS1338 symbol from i.MX25 PDK Board
Philippe Mathieu-Daudé [Thu, 13 May 2021 13:17:06 +0000 (15:17 +0200)]
hw/arm/Kconfig: Remove unused DS1338 symbol from i.MX25 PDK Board

In commit c4f00daa5b3 ("imx25-pdk: create ds1338 for qtest inside
the test") we removed the DS1338 device from the i.MX25 machine
but forgot to remove it in the machine Kconfig definitions, do
it now.

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210515173716.358295-5-philmd@redhat.com>

2 years agohw/arm/Kconfig: Add missing dependency NPCM7XX -> SMBUS
Philippe Mathieu-Daudé [Thu, 13 May 2021 06:55:50 +0000 (08:55 +0200)]
hw/arm/Kconfig: Add missing dependency NPCM7XX -> SMBUS

The TYPE_NPCM7XX_SMBUS device model exposes an SMBus, but
this isn't advertised with proper Kconfig symbol, leading
to an early build failure when building NPCM7XX machines
standalone:

  The following clauses were found for AT24C

      config AT24C depends on I2C
      select AT24C if NPCM7XX

Fix by adding SMBUS to NPCM7XX.

Fixes: 94e77879395 ("hw/i2c: Implement NPCM7XX SMBus Module Single Mode")
Reviewed-by: Hao Wu <wuhaotsh@google.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210515173716.358295-4-philmd@redhat.com>

2 years agohw/ide/Kconfig: Add missing dependency PCI -> IDE_QDEV
Philippe Mathieu-Daudé [Thu, 13 May 2021 07:34:33 +0000 (09:34 +0200)]
hw/ide/Kconfig: Add missing dependency PCI -> IDE_QDEV

The pci_ide_create_devs() function is declared i hw/ide/qdev.c:

 $ git grep ide_create_drive
 hw/ide/pci.c:491:            ide_create_drive(d->bus + bus[i], unit[i], hd_table[i]);
 hw/ide/qdev.c:127:IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
 include/hw/ide/internal.h:653:IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive);

Fix the correct symbol dependency to avoid build failure when
deselecting some machines:

  /usr/bin/ld: libcommon.fa.p/hw_ide_pci.c.o: in function `pci_ide_create_devs':
  hw/ide/pci.c:491: undefined reference to `ide_create_drive'

Fixes: 8f01b41e109 ("ide: express dependencies with Kconfig")
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210515173716.358295-3-philmd@redhat.com>
Acked-by: John Snow <jsnow@redhat.com>
2 years agohw/i386/Kconfig: Add missing Kconfig dependency (runtime error)
Philippe Mathieu-Daudé [Tue, 8 Jun 2021 12:55:53 +0000 (14:55 +0200)]
hw/i386/Kconfig: Add missing Kconfig dependency (runtime error)

When building the 'microvm' machine stand-alone we get:

  $ qemu-system-x86_64 -M microvm
  **
  ERROR:qom/object.c:714:object_new_with_type: assertion failed: (type != NULL)
  Bail out! ERROR:qom/object.c:714:object_new_with_type: assertion failed: (type != NULL)
  Aborted (core dumped)

Looking at the backtrace:

  (gdb) bt
  #3  0x00007ff2330492ff in g_assertion_message_expr () at /lib64/libglib-2.0.so.0
  #4  0x000055a878c18341 in object_new_with_type (type=<optimized out>) at qom/object.c:714
  #5  0x000055a878c18399 in object_new (typename=typename@entry=0x55a878dec36a "isa-pit") at qom/object.c:747
  #6  0x000055a878cc8146 in qdev_new (name=name@entry=0x55a878dec36a "isa-pit") at hw/core/qdev.c:153
  #7  0x000055a878a8b439 in isa_new (name=name@entry=0x55a878dec36a "isa-pit") at hw/isa/isa-bus.c:160
  #8  0x000055a878adb782 in i8254_pit_init (base=64, isa_irq=0, alt_irq=0x0, bus=0x55a87ab38760) at include/hw/timer/i8254.h:54
  #9  microvm_devices_init (mms=0x55a87ac36800) at hw/i386/microvm.c:263
  #10 microvm_machine_state_init (machine=<optimized out>) at hw/i386/microvm.c:471
  #11 0x000055a878a944ab in machine_run_board_init (machine=machine@entry=0x55a87ac36800) at hw/core/machine.c:1239

The "isa-pit" type (TYPE_I8254) is missing. Add it.

Fixes: 0ebf007ddac ("hw/i386: Introduce the microvm machine type")
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20210616204328.2611406-24-philmd@redhat.com>

2 years agohw/acpi/Kconfig: Add missing Kconfig dependencies (build error)
Philippe Mathieu-Daudé [Fri, 21 May 2021 13:53:57 +0000 (15:53 +0200)]
hw/acpi/Kconfig: Add missing Kconfig dependencies (build error)

The 'microvm' machine misses various dependencies:

  /usr/bin/ld: libqemu-i386-softmmu.fa.p/hw_i386_acpi-microvm.c.o: in function `acpi_setup_microvm':
  hw/i386/acpi-microvm.c:247: undefined reference to `acpi_build_tables_init'
  /usr/bin/ld: libqemu-i386-softmmu.fa.p/hw_i386_acpi-microvm.c.o: in function `acpi_build_microvm':
  hw/i386/acpi-microvm.c:192: undefined reference to `bios_linker_loader_alloc'
  /usr/bin/ld: libqemu-i386-softmmu.fa.p/hw_i386_acpi-microvm.c.o: in function `build_dsdt_microvm':
  hw/i386/acpi-microvm.c:121: undefined reference to `init_aml_allocator'
  /usr/bin/ld: hw/i386/acpi-microvm.c:124: undefined reference to `acpi_data_push'
  /usr/bin/ld: hw/i386/acpi-microvm.c:126: undefined reference to `aml_scope'
  /usr/bin/ld: hw/i386/acpi-microvm.c:129: undefined reference to `build_ged_aml'
  /usr/bin/ld: hw/i386/acpi-microvm.c:131: undefined reference to `acpi_dsdt_add_power_button'
  /usr/bin/ld: libqemu-i386-softmmu.fa.p/hw_i386_acpi-microvm.c.o: in function `acpi_dsdt_add_virtio':
  hw/i386/acpi-microvm.c:77: undefined reference to `aml_string'
  /usr/bin/ld: libqemu-i386-softmmu.fa.p/hw_i386_acpi-microvm.c.o: in function `build_dsdt_microvm':
  hw/i386/acpi-microvm.c:138: undefined reference to `aml_scope'
  /usr/bin/ld: hw/i386/acpi-microvm.c:149: undefined reference to `build_header'
  /usr/bin/ld: hw/i386/acpi-microvm.c:152: undefined reference to `free_aml_allocator'
  /usr/bin/ld: libqemu-i386-softmmu.fa.p/hw_i386_acpi-microvm.c.o: in function `acpi_build_microvm':
  hw/i386/acpi-microvm.c:202: undefined reference to `acpi_add_table'
  /usr/bin/ld: hw/i386/acpi-microvm.c:203: undefined reference to `build_fadt'
  /usr/bin/ld: hw/i386/acpi-microvm.c:206: undefined reference to `acpi_add_table'
  /usr/bin/ld: hw/i386/acpi-microvm.c:207: undefined reference to `acpi_build_madt'
  /usr/bin/ld: hw/i386/acpi-microvm.c:212: undefined reference to `build_xsdt'
  /usr/bin/ld: hw/i386/acpi-microvm.c:224: undefined reference to `build_rsdp'
  /usr/bin/ld: libqemu-i386-softmmu.fa.p/hw_i386_acpi-microvm.c.o: in function `acpi_setup_microvm':
  hw/i386/acpi-microvm.c:251: undefined reference to `acpi_add_rom_blob'
  /usr/bin/ld: hw/i386/acpi-microvm.c:253: undefined reference to `acpi_add_rom_blob'
  /usr/bin/ld: hw/i386/acpi-microvm.c:255: undefined reference to `acpi_add_rom_blob'
  /usr/bin/ld: hw/i386/acpi-microvm.c:258: undefined reference to `acpi_build_tables_cleanup'
  /usr/bin/ld: libqemu-i386-softmmu.fa.p/hw_i386_acpi-microvm.c.o: in function `acpi_dsdt_add_pci':
  hw/i386/acpi-microvm.c:105: undefined reference to `acpi_dsdt_add_gpex'
  collect2: error: ld returned 1 exit status
  ninja: build stopped: subcommand failed.

Update the ACPI_HW_REDUCED symbol to select ACPI_MEMORY_HOTPLUG /
ACPI_NVDIMM / ACPI.

Fixes: 8045df14bcc ("microvm/acpi: add minimal acpi support")
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20210616204328.2611406-23-philmd@redhat.com>

2 years agohw/acpi: Do not restrict ACPI core routines to x86 architecture
Philippe Mathieu-Daudé [Fri, 21 May 2021 14:01:36 +0000 (16:01 +0200)]
hw/acpi: Do not restrict ACPI core routines to x86 architecture

ACPI core routines (in core.c) are not really x86-specific.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20210616204328.2611406-21-philmd@redhat.com>

2 years agohw/mips: Express dependencies of the Boston machine with Kconfig
Philippe Mathieu-Daudé [Sun, 3 Feb 2019 20:24:10 +0000 (21:24 +0100)]
hw/mips: Express dependencies of the Boston machine with Kconfig

Boston is built around a Xilinx FPGA, which includes a PCIe root port
and an UART. An Intel EG20T PCH connects the I/O peripherals, but only
the SATA bus is emulated.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Paul Burton <pburton@wavecomp.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190311005618.19007-6-philmd@redhat.com>

2 years agohw/mips: Add dependency MIPS_CPS -> MIPS_ITU
Philippe Mathieu-Daudé [Sun, 10 Mar 2019 01:07:58 +0000 (02:07 +0100)]
hw/mips: Add dependency MIPS_CPS -> MIPS_ITU

The Inter-Thread Communication Unit (ITU, introduced in commit
34fa7e83e11) is part of the Coherent Processing System (CPS),
as describe in commit 408294352ad:

    Make ITU available in the system if CPU supports multithreading
    and is part of CPS.

Have CPS select ITU in Kconfig to avoid the following build failure:

  /usr/bin/ld: libqemu-mips64el-softmmu.fa.p/hw_mips_cps.c.o: in function `mips_cps_realize':
  hw/mips/cps.c:104: undefined reference to `mips_itu_get_tag_region'

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190311005618.19007-5-philmd@redhat.com>

2 years agoblock: Add option to use driver whitelist even in tools
Kevin Wolf [Fri, 9 Jul 2021 16:41:41 +0000 (18:41 +0200)]
block: Add option to use driver whitelist even in tools

Currently, the block driver whitelists are only applied for the system
emulator. All other binaries still give unrestricted access to all block
drivers. There are use cases where this made sense because the main
concern was avoiding customers running VMs on less optimised block
drivers and getting bad performance. Allowing the same image format e.g.
as a target for 'qemu-img convert' is not a problem then.

However, if the concern is the supportability of the driver in general,
either in full or when used read-write, not applying the list driver
whitelist in tools doesn't help - especially since qemu-nbd and
qemu-storage-daemon now give access to more or less the same operations
in block drivers as running a system emulator.

In order to address this, introduce a new configure option that enforces
the driver whitelist in all binaries.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210709164141.254097-1-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 years agoblock/mirror: fix active mirror dead-lock in mirror_wait_on_conflicts
Vladimir Sementsov-Ogievskiy [Fri, 2 Jul 2021 21:16:36 +0000 (00:16 +0300)]
block/mirror: fix active mirror dead-lock in mirror_wait_on_conflicts

It's possible that requests start to wait each other in
mirror_wait_on_conflicts(). To avoid it let's use same technique as in
block/io.c in bdrv_wait_serialising_requests_locked() /
bdrv_find_conflicting_request(): don't wait on intersecting request if
it is already waiting for some other request.

For details of the dead-lock look at testIntersectingActiveIO()
test-case which we actually fixing now.

Fixes: d06107ade0ce74dc39739bac80de84b51ec18546
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210702211636.228981-4-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 years agoiotest 151: add test-case that shows active mirror dead-lock
Vladimir Sementsov-Ogievskiy [Fri, 2 Jul 2021 21:16:35 +0000 (00:16 +0300)]
iotest 151: add test-case that shows active mirror dead-lock

There is a dead-lock in active mirror: when we have parallel
intersecting requests (note that non intersecting requests may be
considered intersecting after aligning to mirror granularity), it may
happen that request A waits request B in mirror_wait_on_conflicts() and
request B waits for A.

Look at the test for details. Test now dead-locks, that's why it's
disabled. Next commit will fix mirror and enable the test.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210702211636.228981-3-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 years agoblock/mirror: set .co for active-write MirrorOp objects
Vladimir Sementsov-Ogievskiy [Fri, 2 Jul 2021 21:16:34 +0000 (00:16 +0300)]
block/mirror: set .co for active-write MirrorOp objects

This field is unused, but it very helpful for debugging.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210702211636.228981-2-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 years agoMerge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2021-07-19' into staging
Peter Maydell [Mon, 19 Jul 2021 18:06:05 +0000 (19:06 +0100)]
Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2021-07-19' into staging

Block patches for 6.1-rc0:
- Make blkdebug's suspend/resume handling robust (and thread-safe)

# gpg: Signature made Mon 19 Jul 2021 18:25:48 BST
# gpg:                using RSA key 91BEB60A30DB3E8857D11829F407DB0061D5CF40
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# gpg: Good signature from "Max Reitz <mreitz@redhat.com>" [full]
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1  1829 F407 DB00 61D5 CF40

* remotes/maxreitz/tags/pull-block-2021-07-19:
  blkdebug: protect rules and suspended_reqs with a lock
  block/blkdebug: remove new_state field and instead use a local variable
  blkdebug: do not suspend in the middle of QLIST_FOREACH_SAFE
  blkdebug: track all actions
  blkdebug: move post-resume handling to resume_req_by_tag
  blkdebug: refactor removal of a suspended request

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoblkdebug: protect rules and suspended_reqs with a lock
Emanuele Giuseppe Esposito [Mon, 14 Jun 2021 08:29:31 +0000 (10:29 +0200)]
blkdebug: protect rules and suspended_reqs with a lock

First, categorize the structure fields to identify what needs
to be protected and what doesn't.

We essentially need to protect only .state, and the 3 lists in
BDRVBlkdebugState.

Then, add the lock and mark the functions accordingly.

Co-developed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20210614082931.24925-7-eesposit@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2 years agoblock/blkdebug: remove new_state field and instead use a local variable
Emanuele Giuseppe Esposito [Mon, 14 Jun 2021 08:29:30 +0000 (10:29 +0200)]
block/blkdebug: remove new_state field and instead use a local variable

There seems to be no benefit in using a field. Replace it with a local
variable, and move the state update before the yields.

The state update has do be done before the yields because now using
a local variable does not allow the new updated state to be visible
by the other yields.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20210614082931.24925-6-eesposit@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2 years agoblkdebug: do not suspend in the middle of QLIST_FOREACH_SAFE
Emanuele Giuseppe Esposito [Mon, 14 Jun 2021 08:29:29 +0000 (10:29 +0200)]
blkdebug: do not suspend in the middle of QLIST_FOREACH_SAFE

That would be unsafe in case a rule other than the current one
is removed while the coroutine has yielded.
Keep FOREACH_SAFE because suspend_request deletes the current rule.

After this patch, *all* matching rules are deleted before suspending
the coroutine, rather than just one.
This doesn't affect the existing testcases.

Use actions_count to see how many yield to issue.

Co-developed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210614082931.24925-5-eesposit@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2 years agoblkdebug: track all actions
Emanuele Giuseppe Esposito [Mon, 14 Jun 2021 08:29:28 +0000 (10:29 +0200)]
blkdebug: track all actions

Add a counter for each action that a rule can trigger.
This is mainly used to keep track of how many coroutine_yield()
we need to perform after processing all rules in the list.

Co-developed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210614082931.24925-4-eesposit@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2 years agoblkdebug: move post-resume handling to resume_req_by_tag
Emanuele Giuseppe Esposito [Mon, 14 Jun 2021 08:29:27 +0000 (10:29 +0200)]
blkdebug: move post-resume handling to resume_req_by_tag

We want to move qemu_coroutine_yield() after the loop on rules,
because QLIST_FOREACH_SAFE is wrong if the rule list is modified
while the coroutine has yielded.  Therefore move the suspended
request to the heap and clean it up from the remove side.
All that is left is for blkdebug_debug_event to handle the
yielding.

Co-developed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210614082931.24925-3-eesposit@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2 years agoblkdebug: refactor removal of a suspended request
Emanuele Giuseppe Esposito [Mon, 14 Jun 2021 08:29:26 +0000 (10:29 +0200)]
blkdebug: refactor removal of a suspended request

Extract to a separate function.  Do not rely on FOREACH_SAFE, which is
only "safe" if the *current* node is removed---not if another node is
removed.  Instead, just walk the entire list from the beginning when
asked to resume all suspended requests with a given tag.

Co-developed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210614082931.24925-2-eesposit@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2 years agoMerge remote-tracking branch 'remotes/thuth-gitlab/tags/pull-request-2021-07-19'...
Peter Maydell [Mon, 19 Jul 2021 10:34:08 +0000 (11:34 +0100)]
Merge remote-tracking branch 'remotes/thuth-gitlab/tags/pull-request-2021-07-19' into staging

- Compile-test the Windows installer in the Gitlab-CI
- Fix endianess detection problem with LTO in "configure"
- Fix two abort()s in the vmxnet code
- Fix crash with x-remote machine and IDE devices

# gpg: Signature made Mon 19 Jul 2021 10:47:12 BST
# 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]
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# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/thuth-gitlab/tags/pull-request-2021-07-19:
  hw/ide: Fix crash when plugging a piix3-ide device into the x-remote machine
  hw/net/net_tx_pkt: Fix crash detected by fuzzer
  hw/net/vmxnet3: Do not abort if the guest is trying to use an invalid TX queue
  configure: Fix endianess test with LTO
  ci: build & store windows installer

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agohw/ide: Fix crash when plugging a piix3-ide device into the x-remote machine
Thomas Huth [Fri, 16 Apr 2021 12:52:56 +0000 (14:52 +0200)]
hw/ide: Fix crash when plugging a piix3-ide device into the x-remote machine

QEMU currently crashes when the user tries to do something like:

 qemu-system-x86_64 -M x-remote -device piix3-ide

This happens because the "isabus" variable is not initialized with
the x-remote machine yet. Add a proper check for this condition
and propagate the error to the caller, so we can fail there gracefully.

Message-Id: <20210416125256.2039734-1-thuth@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 years agohw/net/net_tx_pkt: Fix crash detected by fuzzer
Thomas Huth [Thu, 15 Jul 2021 19:32:19 +0000 (21:32 +0200)]
hw/net/net_tx_pkt: Fix crash detected by fuzzer

QEMU currently crashes when it's started like this:

cat << EOF | ./qemu-system-i386 -device vmxnet3 -nodefaults -qtest stdio
outl 0xcf8 0x80001014
outl 0xcfc 0xe0001000
outl 0xcf8 0x80001018
outl 0xcf8 0x80001004
outw 0xcfc 0x7
outl 0xcf8 0x80001083
write 0x0 0x1 0xe1
write 0x1 0x1 0xfe
write 0x2 0x1 0xbe
write 0x3 0x1 0xba
writeq 0xe0001020 0xefefff5ecafe0000
writeq 0xe0001020 0xffff5e5ccafe0002
EOF

It hits this assertion:

qemu-system-i386: ../qemu/hw/net/net_tx_pkt.c:453: net_tx_pkt_reset:
 Assertion `pkt->raw' failed.

This happens because net_tx_pkt_init() is called with max_frags == 0 and
thus the allocation

    p->raw = g_new(struct iovec, max_frags);

results in a NULL pointer that causes the

    assert(pkt->raw);

in net_tx_pkt_reset() to fail later. To fix this issue we can check
that max_raw_frags was not zero before asserting that pkt->raw is
a non-NULL pointer.

Buglink: https://bugs.launchpad.net/qemu/+bug/1890157
Message-Id: <20210715193219.1132571-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Pankaj Gupta <pankaj.gupta@ionos.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 years agohw/net/vmxnet3: Do not abort if the guest is trying to use an invalid TX queue
Thomas Huth [Thu, 15 Jul 2021 10:37:55 +0000 (12:37 +0200)]
hw/net/vmxnet3: Do not abort if the guest is trying to use an invalid TX queue

QEMU should never abort just because the guest is doing something odd.
Let's simply log the error and ignore the bad transmit queue instead.

Buglink: https://bugs.launchpad.net/qemu/+bug/1926111
Message-Id: <20210715103755.1035566-1-thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 years agoconfigure: Fix endianess test with LTO
Thomas Huth [Thu, 15 Jul 2021 08:39:28 +0000 (10:39 +0200)]
configure: Fix endianess test with LTO

If a user is trying to compile QEMU with link-time optimization
enabled by running the configure script like this:

 .../configure --extra-cflags="-flto"

then the endianess test is failing since the magic values do not
show up in the intermediate object files there. If the host is
a big endian machine (like s390x), the QEMU binary is then unusable
since the corresponding variable "bigendian" is pre-initialized
with "no".

To fix this issue, we should rather create a full binary and look
for the magic strings there instead.
And we really should not continue the build if the endianess check
failed, to make it clear right from the start that something went
wrong here, thus let's also add some "exit 1" statements here
after emitting the error message.

Message-Id: <20210715083928.933806-1-thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 years agoci: build & store windows installer
Gerd Hoffmann [Wed, 23 Jun 2021 09:11:35 +0000 (11:11 +0200)]
ci: build & store windows installer

Build windows installer for qemu in gitlab CI,
store the result as artifact.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210623091137.1156959-2-kraxel@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 years agoMerge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210718' into...
Peter Maydell [Sun, 18 Jul 2021 12:46:39 +0000 (13:46 +0100)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210718' into staging

target-arm queue:
 * Remove duplicate 'plus1' function from Neon and SVE decode
 * Fix offsets for TTBCR for big-endian hosts
 * docs: fix copyright date
 * docs: add license/version info to HTML footers
 * docs: add an About section
 * docs: document some more arm boards

# gpg: Signature made Sun 18 Jul 2021 13:45:22 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20210718:
  target/arm: Remove duplicate 'plus1' function from Neon and SVE decode
  docs: Add skeletal documentation of highbank and midway
  docs: Add skeletal documentation of the emcraft-sf2
  docs: Add skeletal documentation of cubieboard
  docs: Add QEMU version information to HTML footer
  docs: Add license note to the HTML page footer
  docs: Add some actual About text to about/index.rst
  docs: Move deprecation, build and license info out of system/
  docs: Remove "Contents:" lines from top-level subsections
  docs: Stop calling the top level subsections of our manual 'manuals'
  docs: Fix documentation Copyright date
  target/arm: Fix offsets for TTBCR

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agotarget/arm: Remove duplicate 'plus1' function from Neon and SVE decode
Peter Maydell [Thu, 15 Jul 2021 09:53:41 +0000 (10:53 +0100)]
target/arm: Remove duplicate 'plus1' function from Neon and SVE decode

The Neon and SVE decoders use private 'plus1' functions to implement
"add one" for the !function decoder syntax.  We have a generic
"plus_1" function in translate.h, so use that instead.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210715095341.701-1-peter.maydell@linaro.org

2 years agodocs: Add skeletal documentation of highbank and midway
Peter Maydell [Tue, 13 Jul 2021 14:22:26 +0000 (15:22 +0100)]
docs: Add skeletal documentation of highbank and midway

Add skeletal documentation for the highbank and midway machines.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210713142226.19155-4-peter.maydell@linaro.org

2 years agodocs: Add skeletal documentation of the emcraft-sf2
Peter Maydell [Tue, 13 Jul 2021 14:22:25 +0000 (15:22 +0100)]
docs: Add skeletal documentation of the emcraft-sf2

Add skeletal documentation of the emcraft-sf2 machine.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210713142226.19155-3-peter.maydell@linaro.org

2 years agodocs: Add skeletal documentation of cubieboard
Peter Maydell [Tue, 13 Jul 2021 14:22:24 +0000 (15:22 +0100)]
docs: Add skeletal documentation of cubieboard

Add skeletal documentation of the cubieboard machine.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210713142226.19155-2-peter.maydell@linaro.org

2 years agodocs: Add QEMU version information to HTML footer
Peter Maydell [Mon, 5 Jul 2021 09:55:47 +0000 (10:55 +0100)]
docs: Add QEMU version information to HTML footer

Add a line to the HTML document footer mentioning the QEMU version.
The version information is already provided in very faint text below
the QEMU logo in the sidebar, but that is rather inconspicious, so
repeating it in the footer seems useful.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20210705095547.15790-8-peter.maydell@linaro.org

2 years agodocs: Add license note to the HTML page footer
Peter Maydell [Mon, 5 Jul 2021 09:55:46 +0000 (10:55 +0100)]
docs: Add license note to the HTML page footer

The standard Sphinx/RTD HTML page footer gives a copyright line
(based on the 'copyright' variable set in conf.py) and a line "Built
with Sphinx using a theme provided by Read the Docs" (which can be
disabled via the html_show_sphinx variable, but we leave it enabled).
As a free software project, we'd like to also mention the license
QEMU and its manual are released under.

Add a template footer.html which defines the 'extrafooter' block that
the RtD theme provides for this purpose.  The new line of text will
go below the existing copyright and sphinx-acknowledgement lines.
(Unfortunately the RTD footer template does not permit putting it
after the copyright but before the sphinx-acknowledgement.)

We use the templating functionality to make the new text also be a
hyperlink to the about/license.html page of the manual.

Unlike rst files, HTML template files are not reported to our depfile
plugin, so we maintain a manual list in meson.build.  New template
files should be rare, so not being able to auto-generate the
dependency info is not too awkward.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20210705095547.15790-7-peter.maydell@linaro.org

2 years agodocs: Add some actual About text to about/index.rst
Peter Maydell [Mon, 5 Jul 2021 09:55:45 +0000 (10:55 +0100)]
docs: Add some actual About text to about/index.rst

Add some text to About to act as a brief introduction to the QEMU
manual and to make the about page a bit less of an abrupt start to
it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20210705095547.15790-6-peter.maydell@linaro.org

2 years agodocs: Move deprecation, build and license info out of system/
Peter Maydell [Mon, 5 Jul 2021 09:55:44 +0000 (10:55 +0100)]
docs: Move deprecation, build and license info out of system/

Now that we have a single Sphinx manual rather than multiple manuals,
we can provide a better place for "common to all of QEMU" information
like the deprecation notices, build platforms, license information,
which we currently have in the system/ manual even though it applies
to all of QEMU.

Create a new directory about/ on the same level as system/, user/,
etc, and move these documents there.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20210705095547.15790-5-peter.maydell@linaro.org

2 years agodocs: Remove "Contents:" lines from top-level subsections
Peter Maydell [Mon, 5 Jul 2021 09:55:43 +0000 (10:55 +0100)]
docs: Remove "Contents:" lines from top-level subsections

Since the top-level subsections aren't self-contained manuals
any more, the "Contents:" lines at the top of each of their
index pages look a bit odd; remove them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20210705095547.15790-4-peter.maydell@linaro.org

2 years agodocs: Stop calling the top level subsections of our manual 'manuals'
Peter Maydell [Mon, 5 Jul 2021 09:55:42 +0000 (10:55 +0100)]
docs: Stop calling the top level subsections of our manual 'manuals'

We merged our previous multiple-manual setup into a single Sphinx
manual, but we left some text in the various index.rst lines that
still calls the top level subsections separate 'manuals'.  Update
them to talk about "this section of the manual" instead, and remove
now-obsolete comments about how the index.rst files are the "top
level page for the 'foo' manual".

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20210705095547.15790-3-peter.maydell@linaro.org

2 years agodocs: Fix documentation Copyright date
Peter Maydell [Mon, 5 Jul 2021 09:55:41 +0000 (10:55 +0100)]
docs: Fix documentation Copyright date

In commit 6d8980a38fa we updated the copyright string we present to
the user in -version output, About dialogs, etc, but we forgot that
the Sphinx manuals have a separate copyright string setting.  Update
that one too.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20210705095547.15790-2-peter.maydell@linaro.org

2 years agotarget/arm: Fix offsets for TTBCR
Richard Henderson [Fri, 9 Jul 2021 23:06:21 +0000 (16:06 -0700)]
target/arm: Fix offsets for TTBCR

The functions vmsa_ttbcr_write and vmsa_ttbcr_raw_write expect
the offset to be for the complete TCR structure, not the offset
to the low 32-bits of a uint64_t.  Using offsetoflow32 in this
case breaks big-endian hosts.

For TTBCR2, we do want the high 32-bits of a uint64_t.
Use cp15.tcr_el[*].raw_tcr as the offsetofhigh32 argument to
clarify this.

Buglink: https://gitlab.com/qemu-project/qemu/-/issues/187
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210709230621.938821-2-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/mst/tags/for_upstream3' into staging
Peter Maydell [Fri, 16 Jul 2021 15:34:42 +0000 (16:34 +0100)]
Merge remote-tracking branch 'remotes/mst/tags/for_upstream3' into staging

pc,pci,virtio: lots of new features

Lots of last minute stuff.

vhost-user-i2c.
vhost-vsock SOCK_SEQPACKET support.
IOMMU bypass.
ACPI based pci hotplug.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Fri 16 Jul 2021 16:11:27 BST
# 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]
# 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

* remotes/mst/tags/for_upstream3:
  vhost-vsock: SOCK_SEQPACKET feature bit support
  docs: Add documentation for iommu bypass
  hw/i386/acpi-build: Add IVRS support to bypass iommu
  hw/i386/acpi-build: Add DMAR support to bypass iommu
  hw/arm/virt-acpi-build: Add IORT support to bypass SMMUv3
  hw/pci: Add pci_bus_range() to get PCI bus number range
  hw/i386: Add a default_bus_bypass_iommu pc machine option
  hw/arm/virt: Add default_bus_bypass_iommu machine option
  hw/pxb: Add a bypass iommu property
  hw/pci/pci_host: Allow PCI host to bypass iommu
  docs: Add '-device intel-iommu' entry
  hw/virtio: add vhost-user-i2c-pci boilerplate
  hw/virtio: add boilerplate for vhost-user-i2c device
  bios-tables-test: Update golden binaries
  hw/acpi/ich9: Set ACPI PCI hot-plug as default on Q35
  bios-tables-test: Allow changes in DSDT ACPI tables
  hw/pci/pcie: Do not set HPC flag if acpihp is used
  hw/acpi/ich9: Enable ACPI PCI hot-plug
  hw/i386/acpi-build: Add ACPI PCI hot-plug methods to Q35

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agovhost-vsock: SOCK_SEQPACKET feature bit support
Arseny Krasnov [Tue, 22 Jun 2021 14:47:47 +0000 (17:47 +0300)]
vhost-vsock: SOCK_SEQPACKET feature bit support

This adds processing of VIRTIO_VSOCK_F_SEQPACKET features bit. Guest
negotiates it with vhost, thus both will know that SOCK_SEQPACKET
supported by peer.

Signed-off-by: Arseny Krasnov <arseny.krasnov@kaspersky.com>
Message-Id: <20210622144747.2949134-1-arseny.krasnov@kaspersky.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2 years agodocs: Add documentation for iommu bypass
Xingang Wang [Thu, 8 Jul 2021 12:55:19 +0000 (12:55 +0000)]
docs: Add documentation for iommu bypass

Signed-off-by: Xingang Wang <wangxingang5@huawei.com>
Message-Id: <1625748919-52456-10-git-send-email-wangxingang5@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2 years agohw/i386/acpi-build: Add IVRS support to bypass iommu
Xingang Wang [Thu, 8 Jul 2021 12:55:18 +0000 (12:55 +0000)]
hw/i386/acpi-build: Add IVRS support to bypass iommu

Check bypass_iommu to exclude the devices which will bypass iommu.

Signed-off-by: Xingang Wang <wangxingang5@huawei.com>
Message-Id: <1625748919-52456-9-git-send-email-wangxingang5@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2 years agohw/i386/acpi-build: Add DMAR support to bypass iommu
Xingang Wang [Thu, 8 Jul 2021 12:55:17 +0000 (12:55 +0000)]
hw/i386/acpi-build: Add DMAR support to bypass iommu

In DMAR table, the drhd is set to cover all PCI devices when intel_iommu
is on. To support bypass iommu feature, we need to walk the PCI bus with
bypass_iommu disabled and add explicit scope data in DMAR drhd structure.

/mnt/sdb/wxg/qemu-next/qemu/build/x86_64-softmmu/qemu-system-x86_64 \
 -machine q35,accel=kvm,default_bus_bypass_iommu=true \
 -cpu host \
 -m 16G \
 -smp 36,sockets=2,cores=18,threads=1 \
 -device pxb-pcie,bus_nr=0x10,id=pci.10,bus=pcie.0,addr=0x3 \
 -device pxb-pcie,bus_nr=0x20,id=pci.20,bus=pcie.0,addr=0x4,bypass_iommu=true \
 -device pcie-root-port,port=0x1,chassis=1,id=pci.11,bus=pci.10,addr=0x0 \
 -device pcie-root-port,port=0x2,chassis=2,id=pci.21,bus=pci.20,addr=0x0 \
 -device virtio-scsi-pci,id=scsi0,bus=pci.11,addr=0x0 \
 -device virtio-scsi-pci,id=scsi1,bus=pci.21,addr=0x0 \
 -drive file=/mnt/sdb/wxg/fedora-48g.qcow2,format=qcow2,if=none,id=drive-scsi0-0-0-0,cache=none,aio=native \
 -device scsi-hd,bus=scsi1.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0,bootindex=1 \
 -device intel-iommu \
 -nographic \

And we get the guest configuration:

~ lspci -vt
-+-[0000:20]---00.0-[21]----00.0  Red Hat, Inc. Virtio SCSI
 +-[0000:10]---00.0-[11]----00.0  Red Hat, Inc. Virtio SCSI
 \-[0000:00]-+-00.0  Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller
             +-01.0  Device 1234:1111
             +-02.0  Intel Corporation 82574L Gigabit Network Connection
             +-03.0  Red Hat, Inc. QEMU PCIe Expander bridge
             +-04.0  Red Hat, Inc. QEMU PCIe Expander bridge
             +-1f.0  Intel Corporation 82801IB (ICH9) LPC Interface Controller
             +-1f.2  Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 6 port SATA Controller [AHCI mode]
             \-1f.3  Intel Corporation 82801I (ICH9 Family) SMBus Controller

With bypass_iommu enabled on root bus, the attached devices will bypass iommu:

/sys/class/iommu/dmar0
├── devices
│   ├── 0000:10:00.0 -> ../../../../pci0000:10/0000:10:00.0
│   └── 0000:11:00.0 -> ../../../../pci0000:10/0000:10:00.0/0000:11:00.0

Signed-off-by: Xingang Wang <wangxingang5@huawei.com>
Message-Id: <1625748919-52456-8-git-send-email-wangxingang5@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2 years agohw/arm/virt-acpi-build: Add IORT support to bypass SMMUv3
Xingang Wang [Thu, 8 Jul 2021 12:55:16 +0000 (12:55 +0000)]
hw/arm/virt-acpi-build: Add IORT support to bypass SMMUv3

When we build IORT table with SMMUv3 and bypass iommu feature enabled,
we can no longer setup one map from RC to SMMUv3 covering the whole RIDs.
We need to walk the PCI bus and check whether the root bus will bypass
iommu, setup RC -> SMMUv3 -> ITS map for RC which will not bypass iommu.

When a SMMUv3 node exist, we setup the idmap from SMMUv3 to ITS
covering the whole RIDs, and only modify the map from RC to SMMUv3.
We build RC -> SMMUv3 -> ITS map for root bus with bypass_iommu
disabled, and build idmap from RC to ITS directly for the rest of
the whole RID space.

For example we run qemu with command line:

qemu/build/aarch64-softmmu/qemu-system-aarch64 \
 -kernel arch/arm64/boot/Image \
 -enable-kvm \
 -cpu host \
 -m 8G \
 -smp 8,sockets=2,cores=4,threads=1 \
 -machine virt,kernel_irqchip=on,gic-version=3,iommu=smmuv3,default_bus_bypass_iommu=true \
 -drive file=./QEMU_EFI-pflash.raw,if=pflash,format=raw,unit=0,readonly=on \
 -device pxb-pcie,bus_nr=0x10,id=pci.10,bus=pcie.0,addr=0x3.0x1 \
 -device pxb-pcie,bus_nr=0x20,id=pci.20,bus=pcie.0,addr=0x3.0x2,bypass_iommu=true \
 -device pcie-root-port,port=0x20,chassis=1,id=pci.1,bus=pcie.0,addr=0x2 \
 -device pcie-root-port,port=0x20,chassis=11,id=pci.11,bus=pci.10,addr=0x1 \
 -device pcie-root-port,port=0x20,chassis=21,id=pci.21,bus=pci.20,addr=0x1 \
 -device virtio-scsi-pci,id=scsi0,bus=pci.1,addr=0x1 \
 -device virtio-scsi-pci,id=scsi1,bus=pci.11,addr=0x1 \
 -device virtio-scsi-pci,id=scsi2,bus=pci.21,addr=0x1 \
 -initrd /mnt/davinci/wxg/kill-linux/rootfs/mfs.cpio.gz \
 -nographic \
 -append "rdinit=init console=ttyAMA0 earlycon=pl011,0x9000000 nokaslr" \

And we get guest configuration:

-+-[0000:20]---01.0-[21]--
 +-[0000:10]---01.0-[11]--
 \-[0000:00]-+-00.0  Device 1b36:0008
             +-01.0  Device 1af4:1000
             \-02.0-[01]--

With bypass_iommu enabled, the attached devices will bypass iommu.

/sys/class/iommu/smmu3.0x0000000009050000/
|-- device -> ../../../arm-smmu-v3.0.auto
|-- devices
|   `-- 0000:10:01.0 -> ../../../../../pci0000:10/0000:10:01.0

Signed-off-by: Xingang Wang <wangxingang5@huawei.com>
Message-Id: <1625748919-52456-7-git-send-email-wangxingang5@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2 years agohw/pci: Add pci_bus_range() to get PCI bus number range
Xingang Wang [Thu, 8 Jul 2021 12:55:15 +0000 (12:55 +0000)]
hw/pci: Add pci_bus_range() to get PCI bus number range

This helps to get the min and max bus number of a PCI bus hierarchy.

Signed-off-by: Xingang Wang <wangxingang5@huawei.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <1625748919-52456-6-git-send-email-wangxingang5@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2 years agohw/i386: Add a default_bus_bypass_iommu pc machine option
Xingang Wang [Thu, 8 Jul 2021 12:55:14 +0000 (12:55 +0000)]
hw/i386: Add a default_bus_bypass_iommu pc machine option

Add a default_bus_bypass_iommu pc machine option to enable/disable
bypass_iommu for default root bus. The option is disabled by default
and can be enabled with:
$QEMU -machine q35,default_bus_bypass_iommu=true

Signed-off-by: Xingang Wang <wangxingang5@huawei.com>
Message-Id: <1625748919-52456-5-git-send-email-wangxingang5@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2 years agohw/arm/virt: Add default_bus_bypass_iommu machine option
Xingang Wang [Thu, 8 Jul 2021 12:55:13 +0000 (12:55 +0000)]
hw/arm/virt: Add default_bus_bypass_iommu machine option

Add a default_bus_bypass_iommu machine option to enable/disable
bypass_iommu for default root bus. The option is disabled by
default and can be enabled with:
$QEMU -machine virt,iommu=smmuv3,default_bus_bypass_iommu=true

Signed-off-by: Xingang Wang <wangxingang5@huawei.com>
Message-Id: <1625748919-52456-4-git-send-email-wangxingang5@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2 years agohw/pxb: Add a bypass iommu property
Xingang Wang [Thu, 8 Jul 2021 12:55:12 +0000 (12:55 +0000)]
hw/pxb: Add a bypass iommu property

Add a bypass_iommu property for pci_expander_bridge, the property
is used to indicate whether pxb root bus will bypass iommu. By
default the bypass_iommu is disabled, and it can be enabled with:
qemu -device pxb-pcie,bus_nr=0x10,addr=0x1,bypass_iommu=true

Signed-off-by: Xingang Wang <wangxingang5@huawei.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <1625748919-52456-3-git-send-email-wangxingang5@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2 years agohw/pci/pci_host: Allow PCI host to bypass iommu
Xingang Wang [Thu, 8 Jul 2021 12:55:11 +0000 (12:55 +0000)]
hw/pci/pci_host: Allow PCI host to bypass iommu

Add a new bypass_iommu property for PCI host and use it to check
whether devices attached to the PCI root bus will bypass iommu.
In pci_device_iommu_address_space(), check the property and
avoid getting iommu address space for devices bypass iommu.

Signed-off-by: Xingang Wang <wangxingang5@huawei.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <1625748919-52456-2-git-send-email-wangxingang5@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2 years agodocs: Add '-device intel-iommu' entry
Peter Xu [Wed, 7 Jul 2021 15:41:14 +0000 (11:41 -0400)]
docs: Add '-device intel-iommu' entry

The parameters of intel-iommu device are non-trivial to understand.  Add an
entry for it so that people can reference to it when using.

There're actually a few more options there, but I hide them explicitly because
they shouldn't be used by normal QEMU users.

Cc: Chao Yang <chayang@redhat.com>
Cc: Lei Yang <leiyang@redhat.com>
Cc: Jing Zhao <jinzhao@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210707154114.197580-1-peterx@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2 years agohw/virtio: add vhost-user-i2c-pci boilerplate
Viresh Kumar [Fri, 9 Jul 2021 05:00:17 +0000 (10:30 +0530)]
hw/virtio: add vhost-user-i2c-pci boilerplate

This allows is to instantiate a vhost-user-i2c device as part of a PCI
bus. It is mostly boilerplate which looks pretty similar to the
vhost-user-fs-pci device.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Message-Id: <8a083eaa57d93feaab12acd1f94b225879212f20.1625806763.git.viresh.kumar@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2 years agohw/virtio: add boilerplate for vhost-user-i2c device
Viresh Kumar [Fri, 9 Jul 2021 05:00:16 +0000 (10:30 +0530)]
hw/virtio: add boilerplate for vhost-user-i2c device

This creates the QEMU side of the vhost-user-i2c device which connects
to the remote daemon. It is based of vhost-user-fs code.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Message-Id: <e80591b52fea4b51631818bb92a798a3daf90399.1625806763.git.viresh.kumar@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2 years agoMerge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2021-07-15' into staging
Peter Maydell [Fri, 16 Jul 2021 09:56:03 +0000 (10:56 +0100)]
Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2021-07-15' into staging

QAPI patches patches for 2021-07-15

# gpg: Signature made Thu 15 Jul 2021 13:30:14 BST
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-qapi-2021-07-15:
  qapi: Fix crash on missing enum member name

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agobios-tables-test: Update golden binaries
Julia Suvorova [Tue, 13 Jul 2021 00:42:05 +0000 (02:42 +0200)]
bios-tables-test: Update golden binaries

Add ACPI hot-plug registers to DSDT Q35 tables.
Changes in the tables:

+    Scope (_SB.PCI0)
+    {
+        OperationRegion (PCST, SystemIO, 0x0CC4, 0x08)
+        Field (PCST, DWordAcc, NoLock, WriteAsZeros)
+        {
+            PCIU,   32,
+            PCID,   32
+        }
+
+        OperationRegion (SEJ, SystemIO, 0x0CCC, 0x04)
+        Field (SEJ, DWordAcc, NoLock, WriteAsZeros)
+        {
+            B0EJ,   32
+        }
+
+        OperationRegion (BNMR, SystemIO, 0x0CD4, 0x08)
+        Field (BNMR, DWordAcc, NoLock, WriteAsZeros)
+        {
+            BNUM,   32,
+            PIDX,   32
+        }
+
+        Mutex (BLCK, 0x00)
+        Method (PCEJ, 2, NotSerialized)
+        {
+            Acquire (BLCK, 0xFFFF)
+            BNUM = Arg0
+            B0EJ = (One << Arg1)
+            Release (BLCK)
+            Return (Zero)
+        }
+
+        Method (AIDX, 2, NotSerialized)
+        {
+            Acquire (BLCK, 0xFFFF)
+            BNUM = Arg0
+            PIDX = (One << Arg1)
+            Local0 = PIDX /* \_SB_.PCI0.PIDX */
+            Release (BLCK)
+            Return (Local0)
+        }
+
+        Method (PDSM, 6, Serialized)
+        {
+            If ((Arg0 == ToUUID ("e5c937d0-3553-4d7a-9117-ea4d19c3434d") /* Device Labeling Interface */))
+            {
+                Local0 = AIDX (Arg4, Arg5)
+                If ((Arg2 == Zero))
+                {
+                    If ((Arg1 == 0x02))
+                    {
+                        If (!((Local0 == Zero) | (Local0 == 0xFFFFFFFF)))
+                        {
+                            Return (Buffer (One)
+                            {
+                                 0x81                                             // .
+                            })
+                        }
+                    }
+
+                    Return (Buffer (One)
+                    {
+                         0x00                                             // .
+                    })
+                }
+                ElseIf ((Arg2 == 0x07))
+                {
+                    Local1 = Package (0x02)
+                        {
+                            Zero,
+                            ""
+                        }
+                    Local1 [Zero] = Local0
+                    Return (Local1)
+                }
+            }
+        }
+    }
+
...

     Scope (_GPE)
     {
         Name (_HID, "ACPI0006" /* GPE Block Device */)  // _HID: Hardware ID
+        Method (_E01, 0, NotSerialized)  // _Exx: Edge-Triggered GPE, xx=0x00-0xFF
+        {
+            Acquire (\_SB.PCI0.BLCK, 0xFFFF)
+            \_SB.PCI0.PCNT ()
+            Release (\_SB.PCI0.BLCK)
+        }
...

+
+        Device (PHPR)
+        {
+            Name (_HID, "PNP0A06" /* Generic Container Device */)  // _HID: Hardware ID
+            Name (_UID, "PCI Hotplug resources")  // _UID: Unique ID
+            Name (_STA, 0x0B)  // _STA: Status
+            Name (_CRS, ResourceTemplate ()  // _CRS: Current Resource Settings
+            {
+                IO (Decode16,
+                    0x0CC4,             // Range Minimum
+                    0x0CC4,             // Range Maximum
+                    0x01,               // Alignment
+                    0x18,               // Length
+                    )
+            })
+        }
     }
...

And if there is a port in configuration:

             Device (S10)
             {
                 Name (_ADR, 0x00020000)  // _ADR: Address
+                Name (BSEL, Zero)
+                Device (S00)
+                {
+                    Name (_SUN, Zero)  // _SUN: Slot User Number
+                    Name (_ADR, Zero)  // _ADR: Address
+                    Method (_EJ0, 1, NotSerialized)  // _EJx: Eject Device, x=0-9
+                    {
+                        PCEJ (BSEL, _SUN)
+                    }
+
+                    Method (_DSM, 4, Serialized)  // _DSM: Device-Specific Method
+                    {
+                        Return (PDSM (Arg0, Arg1, Arg2, Arg3, BSEL, _SUN))
+                    }
+                }
+
...

+                Method (DVNT, 2, NotSerialized)
+                {
+                    If ((Arg0 & One))
+                    {
+                        Notify (S00, Arg1)
+                    }
...

Signed-off-by: Julia Suvorova <jusual@redhat.com>
Message-Id: <20210713004205.775386-7-jusual@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2 years agohw/acpi/ich9: Set ACPI PCI hot-plug as default on Q35
Julia Suvorova [Tue, 13 Jul 2021 00:42:04 +0000 (02:42 +0200)]
hw/acpi/ich9: Set ACPI PCI hot-plug as default on Q35

Q35 has three different types of PCI devices hot-plug: PCIe Native,
SHPC Native and ACPI hot-plug. This patch changes the default choice
for cold-plugged bridges from PCIe Native to ACPI Hot-plug with
ability to use SHPC and PCIe Native for hot-plugged bridges.

This is a list of the PCIe Native hot-plug issues that led to this
change:
    * no racy behavior during boot (see 110c477c2ed)
    * no delay during deleting - after the actual power off software
      must wait at least 1 second before indicating about it. This case
      is quite important for users, it even has its own bug:
          https://bugzilla.redhat.com/show_bug.cgi?id=1594168
    * no timer-based behavior - in addition to the previous example,
      the attention button has a 5-second waiting period, during which
      the operation can be canceled with a second press. While this
      looks fine for manual button control, automation will result in
      the need to queue or drop events, and the software receiving
      events in all sort of unspecified combinations of attention/power
      indicator states, which is racy and uppredictable.
    * fixes:
        * https://bugzilla.redhat.com/show_bug.cgi?id=1752465
        * https://bugzilla.redhat.com/show_bug.cgi?id=1690256

To return to PCIe Native hot-plug:
    -global ICH9-LPC.acpi-pci-hotplug-with-bridge-support=off

Known issue: older linux guests need the following flag
to allow hotplugged pci express devices to use io:
        -device pcie-root-port,io-reserve=4096.
io is unusual for pci express so this seems minor.
We'll fix this by a follow up patch.

Signed-off-by: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20210713004205.775386-6-jusual@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
2 years agobios-tables-test: Allow changes in DSDT ACPI tables
Julia Suvorova [Tue, 13 Jul 2021 00:42:03 +0000 (02:42 +0200)]
bios-tables-test: Allow changes in DSDT ACPI tables

All DSDT Q35 tables will be modified because ACPI hot-plug is enabled
by default.

Signed-off-by: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20210713004205.775386-5-jusual@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2 years agohw/pci/pcie: Do not set HPC flag if acpihp is used
Julia Suvorova [Tue, 13 Jul 2021 00:42:02 +0000 (02:42 +0200)]
hw/pci/pcie: Do not set HPC flag if acpihp is used

Instead of changing the hot-plug type in _OSC register, do not
set the 'Hot-Plug Capable' flag. This way guest will choose ACPI
hot-plug if it is preferred and leave the option to use SHPC with
pcie-pci-bridge.

The ability to control hot-plug for each downstream port is retained,
while 'hotplug=off' on the port means all hot-plug types are disabled.

Signed-off-by: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20210713004205.775386-4-jusual@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2 years agohw/acpi/ich9: Enable ACPI PCI hot-plug
Julia Suvorova [Tue, 13 Jul 2021 00:42:01 +0000 (02:42 +0200)]
hw/acpi/ich9: Enable ACPI PCI hot-plug

Add acpi_pcihp to ich9_pm as part of
'acpi-pci-hotplug-with-bridge-support' option. Set default to false.

Signed-off-by: Julia Suvorova <jusual@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20210713004205.775386-3-jusual@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
2 years agohw/i386/acpi-build: Add ACPI PCI hot-plug methods to Q35
Julia Suvorova [Tue, 13 Jul 2021 00:42:00 +0000 (02:42 +0200)]
hw/i386/acpi-build: Add ACPI PCI hot-plug methods to Q35

Implement notifications and gpe to support q35 ACPI PCI hot-plug.
Use 0xcc4 - 0xcd7 range for 'acpi-pci-hotplug' io ports.

Signed-off-by: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20210713004205.775386-2-jusual@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
2 years agoMerge remote-tracking branch 'remotes/alistair/tags/pull-riscv-to-apply-20210715...
Peter Maydell [Fri, 16 Jul 2021 08:03:11 +0000 (09:03 +0100)]
Merge remote-tracking branch 'remotes/alistair/tags/pull-riscv-to-apply-20210715' into staging

Fourth RISC-V PR for 6.1 release

 - Code cleanups
 - Documentation improvements
 - Hypervisor extension improvements with hideleg and hedeleg
 - sifive_u fixes
 - OpenTitan register layout updates
 - Fix coverity issue

# gpg: Signature made Thu 15 Jul 2021 08:14:00 BST
# gpg:                using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [full]
# Primary key fingerprint: F6C4 AC46 D493 4868 D3B8  CE8F 21E1 0D29 DF97 7054

* remotes/alistair/tags/pull-riscv-to-apply-20210715:
  hw/riscv/boot: Check the error of fdt_pack()
  hw/riscv: opentitan: Add the flash alias
  hw/riscv: opentitan: Add the unimplement rv_core_ibex_peri
  char: ibex_uart: Update the register layout
  hw/riscv: sifive_u: Make sure firmware info is 8-byte aligned
  hw/riscv: sifive_u: Correct the CLINT timebase frequency
  docs/system: riscv: Update Microchip Icicle Kit for direct kernel boot
  target/riscv: hardwire bits in hideleg and hedeleg
  docs/system: riscv: Add documentation for virt machine
  docs/system: riscv: Fix CLINT name in the sifive_u doc
  target/riscv: csr: Remove redundant check in fp csr read/write routines
  target/riscv: pmp: Fix some typos

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/awilliam/tags/vfio-update-20210714.0' into...
Peter Maydell [Thu, 15 Jul 2021 20:39:04 +0000 (21:39 +0100)]
Merge remote-tracking branch 'remotes/awilliam/tags/vfio-update-20210714.0' into staging

VFIO update 2021-07-14

 * Coverity fix to discard listener (David Hildenbrand)

 * MSI-X PBA quirk for BAIDU VFs, additional helper use cases (Cai Huoqing)

# gpg: Signature made Wed 14 Jul 2021 22:31:35 BST
# gpg:                using RSA key 42F6C04E540BD1A99E7B8A90239B9B6E3BB08B22
# gpg:                issuer "alex.williamson@redhat.com"
# gpg: Good signature from "Alex Williamson <alex.williamson@redhat.com>" [full]
# gpg:                 aka "Alex Williamson <alex@shazbot.org>" [full]
# gpg:                 aka "Alex Williamson <alwillia@redhat.com>" [full]
# gpg:                 aka "Alex Williamson <alex.l.williamson@gmail.com>" [full]
# Primary key fingerprint: 42F6 C04E 540B D1A9 9E7B  8A90 239B 9B6E 3BB0 8B22

* remotes/awilliam/tags/vfio-update-20210714.0:
  vfio/pci: Add pba_offset PCI quirk for BAIDU KUNLUN AI processor
  vfio/pci: Change to use vfio_pci_is()
  vfio: Fix CID 1458134 in vfio_register_ram_discard_listener()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/berrange-gitlab/tags/crypto-and-more-pull-reque...
Peter Maydell [Thu, 15 Jul 2021 18:06:08 +0000 (19:06 +0100)]
Merge remote-tracking branch 'remotes/berrange-gitlab/tags/crypto-and-more-pull-request' into staging

Merge crypto updates and misc fixes

 * Introduce a GNUTLS backend for crypto algorithms
 * Change crypto library preference gnutls > gcrypt > nettle > built-in
 * Remove built-in DES impl
 * Remove XTS mode from built-in AES impl
 * Fix seccomp rules to allow resource info getters
 * Fix migration performance test
 * Use GDateTime in io/ and net/rocker/ code
 * Improve docs for -smp

# gpg: Signature made Wed 14 Jul 2021 15:08:00 BST
# gpg:                using RSA key DAF3A6FDB26B62912D0E8E3FBE86EBB415104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>" [full]
# gpg:                 aka "Daniel P. Berrange <berrange@redhat.com>" [full]
# Primary key fingerprint: DAF3 A6FD B26B 6291 2D0E  8E3F BE86 EBB4 1510 4FDF

* remotes/berrange-gitlab/tags/crypto-and-more-pull-request: (26 commits)
  qemu-options: rewrite help for -smp options
  qemu-options: tweak to show that CPU count is optional
  qemu-options: re-arrange CPU topology options
  docs: fix typo s/Intel/AMD/ in CPU model notes
  tests/migration: fix unix socket migration
  seccomp: don't block getters for resource control syscalls
  io: use GDateTime for formatting timestamp for websock headers
  net/rocker: use GDateTime for formatting timestamp in debug messages
  crypto: prefer gnutls as the crypto backend if new enough
  crypto: add gnutls pbkdf provider
  crypto: add gnutls hmac provider
  crypto: add gnutls hash provider
  crypto: add gnutls cipher provider
  crypto: introduce build system for gnutls crypto backend
  crypto: flip priority of backends to prefer gcrypt
  crypto: replace 'des-rfb' cipher with 'des'
  crypto: delete built-in XTS cipher mode support
  crypto: delete built-in DES implementation
  crypto: add crypto tests for single block DES-ECB and DES-CBC
  crypto: drop custom XTS support in gcrypt driver
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/stsquad/tags/pull-testing-and-plugins-140721...
Peter Maydell [Thu, 15 Jul 2021 15:06:12 +0000 (16:06 +0100)]
Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-and-plugins-140721-5' into staging

Testing and plugin updates:

  - custom runner playbooks for configuring GitLab runners
  - integrate Cirrus jobs into GitLab via cirrus-run
  - clean-up docker package lists
  - bump NetBSD to 9.2
  - bump OpenBSD to 6.9
  - make test-mmap more hexagon friendly
  - fixup handling of hostaddr for plugins
  - disallow some incompatible plugin configurations
  - fix handling of -ldl for BSDs
  - remove some old unused symbols from the plugin symbol map
  - enable plugins by default for most TCG builds
  - honour main build -Wall settings for plugins
  - new execlog plugin
  - new cache modelling plugin
  - fix io_uring build regression
  - disable modular TCG on Darwin

# gpg: Signature made Wed 14 Jul 2021 15:56:27 BST
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-testing-and-plugins-140721-5: (44 commits)
  MAINTAINERS: Added myself as a reviewer for TCG Plugins
  docs/devel: Added cache plugin to the plugins docs
  plugins/cache: Added FIFO and LRU eviction policies
  plugins/cache: Enable cache parameterization
  plugins: Added a new cache modelling plugin
  docs/devel: tcg-plugins: add execlog plugin description
  contrib/plugins: add execlog to log instruction execution and memory access
  contrib/plugins: enable -Wall for building plugins
  tcg/plugins: enable by default for most TCG builds
  configure: stop user enabling plugins on Windows for now
  configure: add an explicit static and plugins check
  configure: don't allow plugins to be enabled for a non-TCG build
  tcg/plugins: remove some stale entries from the symbol list
  meson.build: relax the libdl test to one for the function dlopen
  meson.build: move TCG plugin summary output
  plugins: fix-up handling of internal hostaddr for 32 bit
  tests/tcg: make test-mmap a little less aggressive
  tests/vm: update openbsd to release 6.9
  tests/vm: update NetBSD to 9.2
  tests/docker: expand opensuse-leap package list
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/philmd/tags/fw-edk2-20210714' into staging
Peter Maydell [Thu, 15 Jul 2021 12:44:00 +0000 (13:44 +0100)]
Merge remote-tracking branch 'remotes/philmd/tags/fw-edk2-20210714' into staging

Patches related to EDK2/OVMF

- MAINTAINERS: remove Laszlo Ersek's entries
- Introduce X86_FW_OVMF Kconfig symbol
- pc_system_ovmf_table_find: Assert that flash was parsed, document
- gitlab-ci: Fix the jobs building EDK2 blobs

# gpg: Signature made Wed 14 Jul 2021 21:36:33 BST
# 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

* remotes/philmd/tags/fw-edk2-20210714:
  MAINTAINERS: remove Laszlo Ersek's entries
  hw/i386: Introduce X86_FW_OVMF Kconfig symbol
  hw/i386/pc: Document pc_system_ovmf_table_find
  hw/i386/pc: pc_system_ovmf_table_find: Assert that flash was parsed
  gitlab-ci: Extract EDK2 job rules to reusable section

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoqapi: Fix crash on missing enum member name
Markus Armbruster [Wed, 16 Jun 2021 07:21:21 +0000 (09:21 +0200)]
qapi: Fix crash on missing enum member name

New test case enum-dict-no-name.json crashes:

    $ python3 scripts/qapi-gen.py tests/qapi-schema/enum-dict-no-name.json
    Traceback (most recent call last):
    [...]
      File "/work/armbru/qemu/scripts/qapi/expr.py", line 458, in check_enum
member_name = member['name']
    KeyError: 'name'

Root cause: we try to retrieve member 'name' before we check for
missing members.  With that fixed, we get the expected error "'data'
member misses key 'name'".

Fixes: 0825f62c842f2c07c5471391c6d7fd3f4fe83732
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210616072121.626431-1-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
2 years agohw/riscv/boot: Check the error of fdt_pack()
Alistair Francis [Wed, 14 Jul 2021 23:01:22 +0000 (09:01 +1000)]
hw/riscv/boot: Check the error of fdt_pack()

Coverity reports that we don't check the error result of fdt_pack(), so
let's save the result and assert that it is 0.

Fixes: Coverity CID 1458136
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 07325315b49d5555269f76094e4bc5296e0643b9.1626303527.git.alistair.francis@wdc.com