OSDN Git Service
Bastian Koppelmann [Fri, 21 Jul 2023 06:06:05 +0000 (08:06 +0200)]
target/tricore: Rename tricore_feature
this name is used by capstone and will lead to a build failure of QEMU,
when capstone is enabled. So we rename it to tricore_has_feature(), to
match has_feature() in translate.c.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1774
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Michael Tokarev [Fri, 14 Jul 2023 11:13:50 +0000 (14:13 +0300)]
hw/9pfs: spelling fixes
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Michael Tokarev [Fri, 14 Jul 2023 11:23:51 +0000 (14:23 +0300)]
other architectures: spelling fixes
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Michael Tokarev [Fri, 14 Jul 2023 11:14:49 +0000 (14:14 +0300)]
arm: spelling fixes
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Michael Tokarev [Fri, 14 Jul 2023 11:20:07 +0000 (14:20 +0300)]
s390x: spelling fixes
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Michael Tokarev [Fri, 14 Jul 2023 11:32:41 +0000 (14:32 +0300)]
migration: spelling fixes
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Bastian Koppelmann [Fri, 21 Jul 2023 06:06:05 +0000 (08:06 +0200)]
target/tricore: Rename tricore_feature
this name is used by capstone and will lead to a build failure of QEMU,
when capstone is enabled. So we rename it to tricore_has_feature(), to
match has_feature() in translate.c.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1774
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <
20230721060605.76636-1-kbastian@mail.uni-paderborn.de>
Peter Maydell [Mon, 17 Jul 2023 10:35:44 +0000 (11:35 +0100)]
target/sparc: Handle FPRS correctly on big-endian hosts
In CPUSparcState we define the fprs field as uint64_t. However we
then refer to it in translate.c via a TCGv_i32 which we set up with
tcg_global_mem_new_ptr(). This means that on a big-endian host when
the guest does something to writo te the FPRS register this value
ends up in the wrong half of the uint64_t, and the QEMU C code that
refers to env->fprs sees the wrong value. The effect of this is that
guest code that enables the FPU crashes with spurious FPU Disabled
exceptions. In particular, this is why
tests/avocado/machine_sparc64_sun4u.py:Sun4uMachine.test_sparc64_sun4u
times out on an s390 host.
There are multiple ways we could fix this; since there are actually
only three bits in the FPRS register and the code in translate.c
would be a bit painful to convert to dealing with a TCGv_i64, change
the type of the CPU state struct field to match what translate.c is
expecting.
(None of the other fields referenced by the r32[] array in
sparc_tcg_init() have the wrong type.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <
20230717103544.637453-1-peter.maydell@linaro.org>
Peter Maydell [Mon, 17 Jul 2023 16:29:40 +0000 (18:29 +0200)]
target/mips: Avoid shift by negative number in page_table_walk_refill()
Coverity points out that in page_table_walk_refill() we can
shift by a negative number, which is undefined behaviour
(CID
1452918,
1452920,
1452922). We already catch the
negative directory_shift and leaf_shift as being a "bail
out early" case, but not until we've already used them to
calculated some offset values.
The shifts can be negative only if ptew > 1, so make the
bail-out-early check look directly at that, and only
calculate the shift amounts and the offsets based on them
after we have done that check. This allows
us to simplify the expressions used to calculate the
shift amounts, use an unsigned type, and avoids the
undefined behaviour.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
[PMD: Check for ptew > 1, use unsigned type]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <
20230717213504.24777-3-philmd@linaro.org>
Philippe Mathieu-Daudé [Mon, 17 Jul 2023 20:42:09 +0000 (22:42 +0200)]
target/mips: Pass directory/leaf shift values to walk_directory()
We already evaluated directory_shift and leaf_shift in
page_table_walk_refill(), no need to do that again: pass
as argument.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <
20230717213504.24777-2-philmd@linaro.org>
Philippe Mathieu-Daudé [Wed, 12 Jul 2023 05:41:32 +0000 (07:41 +0200)]
target/mips/mxu: Avoid overrun in gen_mxu_q8adde()
Coverity reports a potential overruns (CID
1517770):
Overrunning array "mxu_gpr" of 15 8-byte elements at
element index
4294967295 (byte offset
34359738367)
using index "XRb - 1U" (which evaluates to
4294967295).
Add a gen_extract_mxu_gpr() helper similar to
gen_load_mxu_gpr() to safely extract MXU registers.
Fixes:
eb79951ab6 ("target/mips/mxu: Add Q8ADDE ... insns")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <
20230712060806.82323-4-philmd@linaro.org>
Philippe Mathieu-Daudé [Wed, 12 Jul 2023 05:51:44 +0000 (07:51 +0200)]
target/mips/mxu: Avoid overrun in gen_mxu_S32SLT()
Coverity reports a potential overrun (CID
1517769):
Overrunning array "mxu_gpr" of 15 8-byte elements at
element index
4294967295 (byte offset
34359738367)
using index "XRb - 1U" (which evaluates to
4294967295).
Use gen_load_mxu_gpr() to safely load MXU registers.
Fixes:
ff7936f009 ("target/mips/mxu: Add S32SLT ... insns")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <
20230712060806.82323-3-philmd@linaro.org>
Philippe Mathieu-Daudé [Wed, 12 Jul 2023 05:52:26 +0000 (07:52 +0200)]
target/mips/mxu: Replace magic array size by its definition
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <
20230712060806.82323-2-philmd@linaro.org>
Thomas Huth [Sun, 16 Jul 2023 15:35:19 +0000 (17:35 +0200)]
hw/char/escc: Implement loopback mode
The firmware of the m68k next-cube machine uses the loopback mode
for self-testing the hardware and currently fails during this step.
By implementing the loopback mode, we can make the firmware pass
to the next step.
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <
20230716153519.31722-1-huth@tuxfamily.org>
Thomas Huth [Fri, 14 Jul 2023 10:49:03 +0000 (12:49 +0200)]
hw/mips: Improve the default USB settings in the loongson3-virt machine
It's possible to compile QEMU without the USB devices (e.g. when using
"--without-default-devices" as option for the "configure" script).
To be still able to run the loongson3-virt machine in default mode with
such a QEMU binary, we have to check here for the availability of the
OHCI controller first before instantiating the USB devices.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <
20230714104903.284845-1-thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Bernhard Beschow [Sun, 9 Jul 2023 08:09:50 +0000 (10:09 +0200)]
hw/sd/sdhci: Do not force sdhci_mmio_*_ops onto all SD controllers
Since commit
c0a55a0c9da2 "hw/sd/sdhci: Support big endian SD host controller
interfaces" sdhci_common_realize() forces all SD card controllers to use either
sdhci_mmio_le_ops or sdhci_mmio_be_ops, depending on the "endianness" property.
However, there are device models which use different MMIO ops: TYPE_IMX_USDHC
uses usdhc_mmio_ops and TYPE_S3C_SDHCI uses sdhci_s3c_mmio_ops.
Forcing sdhci_mmio_le_ops breaks SD card handling on the "sabrelite" board, for
example. Fix this by defaulting the io_ops to little endian and switch to big
endian in sdhci_common_realize() only if there is a matchig big endian variant
available.
Fixes:
c0a55a0c9da2 ("hw/sd/sdhci: Support big endian SD host controller
interfaces")
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Message-Id: <
20230709080950.92489-1-shentey@gmail.com>
Peter Maydell [Tue, 25 Jul 2023 11:44:39 +0000 (12:44 +0100)]
Merge tag 'pull-target-arm-
20230725' of https://git.linaro.org/people/pmaydell/qemu-arm into staging
target-arm queue:
* tests/decode: Suppress "error: " string for expected-failure tests
* ui/curses: For curses display, recognize a few more control keys
* target/arm: Special case M-profile in debug_helper.c code
* scripts/git-submodule.sh: Don't rely on non-POSIX 'read' behaviour
* hw/arm/smmu: Handle big-endian hosts correctly
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# gpg: Signature made Tue 25 Jul 2023 11:24:31 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]
# gpg: aka "Peter Maydell <peter@archaic.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* tag 'pull-target-arm-
20230725' of https://git.linaro.org/people/pmaydell/qemu-arm:
tests/decode: Suppress "error: " string for expected-failure tests
For curses display, recognize a few more control keys
target/arm: Special case M-profile in debug_helper.c code
scripts/git-submodule.sh: Don't rely on non-POSIX 'read' behaviour
hw/arm/smmu: Handle big-endian hosts correctly
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 25 Jul 2023 09:56:52 +0000 (10:56 +0100)]
tests/decode: Suppress "error: " string for expected-failure tests
The "expected failure" tests for decodetree result in the
error messages from decodetree ending up in logs and in
V=1 output:
>>> MALLOC_PERTURB_=226 /mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/x86/pyvenv/bin/python3 /mnt/nvmedisk/linaro/qemu-from-laptop/qemu/scripts/decodetree.py --output-null --test-for-error /mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/x86/../../tests/decode/err_argset1.decode
――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――― ✀ ――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――
/mnt/nvmedisk/linaro/qemu-from-laptop/qemu/build/x86/../../tests/decode/err_argset1.decode:5: error: duplicate argument "a"
―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――
1/44 qemu:decodetree / err_argset1 OK 0.05s
This then produces false positives when scanning the
logfiles for strings like "error: ".
For the expected-failure tests, make decodetree print
"detected:" instead of "error:".
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20230720131521.
1325905-1-peter.maydell@linaro.org
Sean Estabrooks [Tue, 25 Jul 2023 09:56:51 +0000 (10:56 +0100)]
For curses display, recognize a few more control keys
The curses display handles most control-X keys, and translates
them into their corresponding keycode. Here we recognize
a few that are missing, Ctrl-@ (null), Ctrl-\ (backslash),
Ctrl-] (right bracket), Ctrl-^ (caret), Ctrl-_ (underscore).
Signed-off-by: Sean Estabrooks <sean.estabrooks@gmail.com>
Message-id: CAHyVn3Bh9CRgDuOmf7G7Ngwamu8d4cVozAcB2i4ymnnggBXNmg@mail.gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 25 Jul 2023 09:56:51 +0000 (10:56 +0100)]
target/arm: Special case M-profile in debug_helper.c code
A lot of the code called from helper_exception_bkpt_insn() is written
assuming A-profile, but we will also call this helper on M-profile
CPUs when they execute a BKPT insn. This used to work by accident,
but recent changes mean that we will hit an assert when some of this
code calls down into lower level functions that end up calling
arm_security_space_below_el3(), arm_el_is_aa64(), and other functions
that now explicitly assert that the guest CPU is not M-profile.
Handle M-profile directly to avoid the assertions:
* in arm_debug_target_el(), M-profile debug exceptions always
go to EL1
* in arm_debug_exception_fsr(), M-profile always uses the short
format FSR (compare commit
d7fe699be54b2, though in this case
the code in arm_v7m_cpu_do_interrupt() does not need to
look at the FSR value at all)
Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1775
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20230721143239.
1753066-1-peter.maydell@linaro.org
Peter Maydell [Tue, 25 Jul 2023 09:56:51 +0000 (10:56 +0100)]
scripts/git-submodule.sh: Don't rely on non-POSIX 'read' behaviour
The POSIX definition of the 'read' utility requires that you
specify the variable name to set; omitting the name and
having it default to 'REPLY' is a bashism. If your system
sh is dash, then it will print an error message during build:
qemu/pc-bios/s390-ccw/../../scripts/git-submodule.sh: 106: read: arg count
Specify the variable name explicitly.
Fixes:
fdb8fd8cb915647b ("git-submodule: allow partial update of .git-submodule-status")
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id:
20230720153038.
1587196-1-peter.maydell@linaro.org
Peter Maydell [Tue, 25 Jul 2023 09:56:51 +0000 (10:56 +0100)]
hw/arm/smmu: Handle big-endian hosts correctly
The implementation of the SMMUv3 has multiple places where it reads a
data structure from the guest and directly operates on it without
doing a guest-to-host endianness conversion. Since all SMMU data
structures are little-endian, this means that the SMMU doesn't work
on a big-endian host. In particular, this causes the Avocado test
machine_aarch64_virt.py:Aarch64VirtMachine.test_alpine_virt_tcg_gic_max
to fail on an s390x host.
Add appropriate byte-swapping on reads and writes of guest in-memory
data structures so that the device works correctly on big-endian
hosts.
As part of this we constrain queue_read() to operate only on Cmd
structs and queue_write() on Evt structs, because in practice these
are the only data structures the two functions are used with, and we
need to know what the data structure is to be able to byte-swap its
parts correctly.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id:
20230717132641.764660-1-peter.maydell@linaro.org
Cc: qemu-stable@nongnu.org
Peter Maydell [Mon, 24 Jul 2023 17:06:36 +0000 (18:06 +0100)]
Merge tag 'pull-request-2023-07-24' of https://gitlab.com/thuth/qemu into staging
* Fix emulation of s390x instructions: CKSM, CLM, ICM, MC, CLGEBR(A)
* Remove useless and non-working s390x migration avocado tests
* Fix loongarch CSRRD CPUID instruction when running on s390x hosts
* Disable flaky s390x virtio-gpu test by default
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# gpg: Signature made Mon 24 Jul 2023 17:49:06 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]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5
* tag 'pull-request-2023-07-24' of https://gitlab.com/thuth/qemu:
tests/avocado/machine_s390_ccw_virtio: Skip the flaky virtio-gpu test by default
target/loongarch: Fix the CSRRD CPUID instruction on big endian hosts
tests/avocado/migration: Remove the malfunctioning s390x tests
tests/tcg/s390x: Test VCKSM
tests/tcg/s390x: Test STPQ
tests/tcg/s390x: Test MC
tests/tcg/s390x: Test ICM
tests/tcg/s390x: Test CLM
tests/tcg/s390x: Test CLGEBR and CGEBRA
tests/tcg/s390x: Test CKSM
target/s390x: Fix assertion failure in VFMIN/VFMAX with type 13
target/s390x: Make MC raise specification exception when class >= 16
target/s390x: Fix ICM with M3=0
target/s390x: Fix CONVERT TO LOGICAL/FIXED with out-of-range inputs
target/s390x: Fix CLM with M3=0
target/s390x: Make CKSM raise an exception if R2 is odd
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Mon, 24 Jul 2023 17:06:25 +0000 (18:06 +0100)]
Merge tag 'pull-qapi-2023-07-10' of https://repo.or.cz/qemu/armbru into staging
QAPI patches patches for 2023-07-10
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# ZWRoYXQuY29tAAoJEDhwtADrkYZTgnUP/1XvFPJ8NUWBjqe4DgYqkjx7rf5Zym+y
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# XYtF0co95SWKvqp9FSnejoYiNBCWKqZpHyDnJoXcd8RynqDt+cmNaZcU+Id+/WTv
# fLiLGQgHNyKBIYWlljxiDXGMlybnbV88N0dkLZtJ0Z1aJhh6j5grxTp0BRd85nsw
# QQjGO1qot6adQy04xi1RiMp4VZDJH18/9gBhDRLddVul0q49J1CT9LmKv/lYbpPj
# 6duZwrO5ciEUQ2usc8/L8ZtM7xIbAXRGqyg69IpmfwVE906LFrHt6N23WJl14a7F
# UBwD2+uGQNFyjxhFtPZZIYzYIH/49eGA/i6nhSIsd+LCD2r4n3M7FukgF8phuI9t
# xEX++sW4ix8cStqtsRAtFJ7OCFFKK2al1zpPzgHyZQ4mwMZimRKh6blcD+AnOZms
# uhiqONr2VlS9kefLAn5oCyTRUzxjJplnsqK44o8bKTfXxGcWBX2mt2nYMZECSLrQ
# B1HWzr8y4uc8ivYzIErhWMWtIwISa9KQSsuurZXz83vEWnrtVq6hh9B8z6j24hk9
# RJRSRZjHHjt7
# =3XVF
# -----END PGP SIGNATURE-----
# gpg: Signature made Mon 10 Jul 2023 12:16:11 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
* tag 'pull-qapi-2023-07-10' of https://repo.or.cz/qemu/armbru:
migration.json: Don't use space before colon
qapi: better docs for calc-dirty-rate and friends
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Thomas Huth [Mon, 24 Jul 2023 08:48:51 +0000 (10:48 +0200)]
tests/avocado/machine_s390_ccw_virtio: Skip the flaky virtio-gpu test by default
The virtio-gpu test is known to be flaky - that's why we also did
not enable the test_s390x_fedora in the gitlab CI. However, a flaky
test can also be annoying when testing locally, so let's rather skip
this subtest by default and start running the test_s390x_fedora test
in the gitlab CI again (since the other things that are tested here
are quite valuable).
Message-Id: <
20230724084851.24251-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Thomas Huth [Thu, 20 Jul 2023 17:53:07 +0000 (19:53 +0200)]
target/loongarch: Fix the CSRRD CPUID instruction on big endian hosts
The test in tests/avocado/machine_loongarch.py is currently failing
on big endian hosts like s390x. By comparing the traces between running
the QEMU_EFI.fd bios on a s390x and on a x86 host, it's quickly obvious
that the CSRRD instruction for the CPUID is behaving differently. And
indeed: The code currently does a long read (i.e. 64 bit) from the
address that points to the CPUState->cpu_index field (with tcg_gen_ld_tl()
in the trans_csrrd() function). But this cpu_index field is only an "int"
(i.e. 32 bit). While this dirty pointer magic works on little endian hosts,
it of course fails on big endian hosts. Fix it by using a proper helper
function instead.
Message-Id: <
20230720175307.854460-1-thuth@redhat.com>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Thomas Huth [Fri, 21 Jul 2023 16:43:46 +0000 (18:43 +0200)]
tests/avocado/migration: Remove the malfunctioning s390x tests
The tests from tests/avocado/migration.py do not work at all
on s390x - the bios shuts down immediately when it cannot find
a boot disk, so there is nothing left to migrate here. For doing
a proper migration test, we would need a proper payload, but we
already do such tests in the migration *qtest*, so it is unnecessary
to redo such a test here, thus let's simply remove this test.
Message-Id: <
20230721164346.10112-1-thuth@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Ilya Leoshkevich [Mon, 24 Jul 2023 08:16:07 +0000 (10:16 +0200)]
tests/tcg/s390x: Test VCKSM
Add a small test to prevent regressions.
Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20230724082032.66864-15-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Ilya Leoshkevich [Mon, 24 Jul 2023 08:16:06 +0000 (10:16 +0200)]
tests/tcg/s390x: Test STPQ
Add a small test to prevent regressions.
Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20230724082032.66864-14-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Ilya Leoshkevich [Mon, 24 Jul 2023 08:16:05 +0000 (10:16 +0200)]
tests/tcg/s390x: Test MC
Add a small test to prevent regressions.
Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20230724082032.66864-13-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Ilya Leoshkevich [Mon, 24 Jul 2023 08:16:04 +0000 (10:16 +0200)]
tests/tcg/s390x: Test ICM
Add a small test to prevent regressions.
Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20230724082032.66864-12-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Ilya Leoshkevich [Mon, 24 Jul 2023 08:16:03 +0000 (10:16 +0200)]
tests/tcg/s390x: Test CLM
Add a small test to prevent regressions.
Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20230724082032.66864-11-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Ilya Leoshkevich [Mon, 24 Jul 2023 08:16:02 +0000 (10:16 +0200)]
tests/tcg/s390x: Test CLGEBR and CGEBRA
Add a small test to prevent regressions.
Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20230724082032.66864-10-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Ilya Leoshkevich [Mon, 24 Jul 2023 08:16:01 +0000 (10:16 +0200)]
tests/tcg/s390x: Test CKSM
Add a small test to prevent regressions.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20230724082032.66864-9-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Ilya Leoshkevich [Mon, 24 Jul 2023 08:16:00 +0000 (10:16 +0200)]
target/s390x: Fix assertion failure in VFMIN/VFMAX with type 13
Type 13 is reserved, so using it should result in specification
exception. Due to an off-by-1 error the code triggers an assertion at a
later point in time instead.
Cc: qemu-stable@nongnu.org
Fixes:
da4807527f3b ("s390x/tcg: Implement VECTOR FP (MAXIMUM|MINIMUM)")
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20230724082032.66864-8-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Ilya Leoshkevich [Mon, 24 Jul 2023 08:15:58 +0000 (10:15 +0200)]
target/s390x: Make MC raise specification exception when class >= 16
MC requires bit positions 8-11 (upper 4 bits of class) to be zeros,
otherwise it must raise a specification exception.
Cc: qemu-stable@nongnu.org
Fixes:
20d143e2cab8 ("s390x/tcg: Implement MONITOR CALL")
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20230724082032.66864-6-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Ilya Leoshkevich [Mon, 24 Jul 2023 08:15:57 +0000 (10:15 +0200)]
target/s390x: Fix ICM with M3=0
When the mask is zero, access exceptions should still be recognized for
1 byte at the second-operand address. CC should be set to 0.
Cc: qemu-stable@nongnu.org
Fixes:
e023e832d0ac ("s390x: translate engine for s390x CPU")
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20230724082032.66864-5-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Ilya Leoshkevich [Mon, 24 Jul 2023 08:15:56 +0000 (10:15 +0200)]
target/s390x: Fix CONVERT TO LOGICAL/FIXED with out-of-range inputs
CONVERT TO LOGICAL/FIXED deviate from IEEE 754 in that they raise an
inexact exception on out-of-range inputs. float_flag_invalid_cvti
aligns nicely with that behavior, so convert it to
S390_IEEE_MASK_INEXACT.
Cc: qemu-stable@nongnu.org
Fixes:
defb0e3157af ("s390x: Implement opcode helpers")
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20230724082032.66864-4-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Ilya Leoshkevich [Mon, 24 Jul 2023 08:15:55 +0000 (10:15 +0200)]
target/s390x: Fix CLM with M3=0
When the mask is zero, access exceptions should still be recognized for
1 byte at the second-operand address. CC should be set to 0.
Cc: qemu-stable@nongnu.org
Fixes:
defb0e3157af ("s390x: Implement opcode helpers")
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20230724082032.66864-3-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Ilya Leoshkevich [Mon, 24 Jul 2023 08:15:54 +0000 (10:15 +0200)]
target/s390x: Make CKSM raise an exception if R2 is odd
R2 designates an even-odd register pair; the instruction should raise
a specification exception when R2 is not even.
Cc: qemu-stable@nongnu.org
Fixes:
e023e832d0ac ("s390x: translate engine for s390x CPU")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20230724082032.66864-2-iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Peter Maydell [Mon, 24 Jul 2023 10:34:35 +0000 (11:34 +0100)]
Merge tag 'pull-riscv-to-apply-
20230723-3' of https://github.com/alistair23/qemu into staging
Fifth RISC-V PR for 8.1
* roms/opensbi: Upgrade from v1.3 to v1.3.1
# -----BEGIN PGP SIGNATURE-----
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# SRdhdZ6UCg6epokVuvaRPH+TMmMGWad6n4GKGqXa1edK1yCIKEE=
# =pNh6
# -----END PGP SIGNATURE-----
# gpg: Signature made Sun 23 Jul 2023 10:33:32 BST
# gpg: using RSA key
6AE902B6A7CA877D6D659296AF7C95130C538013
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 6AE9 02B6 A7CA 877D 6D65 9296 AF7C 9513 0C53 8013
* tag 'pull-riscv-to-apply-
20230723-3' of https://github.com/alistair23/qemu:
roms/opensbi: Upgrade from v1.3 to v1.3.1
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Mon, 24 Jul 2023 10:34:08 +0000 (11:34 +0100)]
Merge tag 'pull-revert-armhf-brk-fix' of https://gitlab.com/mjt0k/qemu into staging
Revert "linux-user: Fix qemu-arm to run static armhf binaries"
# -----BEGIN PGP SIGNATURE-----
#
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# bXNrLnJ1AAoJEHAbT2saaT5ZLdsH/A7uTAODHopQnUGySPpHAT9uPjf6A21eZnnE
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# =Cp7j
# -----END PGP SIGNATURE-----
# gpg: Signature made Sat 22 Jul 2023 17:56:30 BST
# gpg: using RSA key
7B73BAD68BE7A2C289314B22701B4F6B1A693E59
# gpg: issuer "mjt@tls.msk.ru"
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>" [full]
# gpg: aka "Michael Tokarev <mjt@corpit.ru>" [full]
# gpg: aka "Michael Tokarev <mjt@debian.org>" [full]
# Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D 4324 457C E0A0 8044 65C5
# Subkey fingerprint: 7B73 BAD6 8BE7 A2C2 8931 4B22 701B 4F6B 1A69 3E59
* tag 'pull-revert-armhf-brk-fix' of https://gitlab.com/mjt0k/qemu:
Revert "linux-user: Fix qemu-arm to run static armhf binaries"
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Mon, 24 Jul 2023 10:34:01 +0000 (11:34 +0100)]
Merge tag 'pull-tcg-
20230724' of https://gitlab.com/rth7680/qemu into staging
accel/tcg: Zero-pad vaddr in tlb debug output
accel/tcg: Fix type of 'last' for pageflags_{find,next}
accel/tcg: Fix sense of read-only probes in ldst_atomicity
accel/tcg: Take mmap_lock in load_atomic*_or_exit
tcg: Add earlyclobber to op_add2 for x86 and s390x
tcg/ppc: Fix race in goto_tb implementation
# -----BEGIN PGP SIGNATURE-----
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# 0y/ycA==
# =hdk/
# -----END PGP SIGNATURE-----
# gpg: Signature made Mon 24 Jul 2023 09:52:07 BST
# gpg: using RSA key
7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg: issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* tag 'pull-tcg-
20230724' of https://gitlab.com/rth7680/qemu:
accel/tcg: Fix type of 'last' for pageflags_{find,next}
accel/tcg: Zero-pad vaddr in tlb_debug output
tcg/{i386, s390x}: Add earlyclobber to the op_add2's first output
accel/tcg: Take mmap_lock in load_atomic*_or_exit
accel/tcg: Fix sense of read-only probes in ldst_atomicity
include/exec: Add WITH_MMAP_LOCK_GUARD
tcg/ppc: Fix race in goto_tb implementation
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Luca Bonissi [Sun, 23 Jul 2023 17:31:58 +0000 (18:31 +0100)]
accel/tcg: Fix type of 'last' for pageflags_{find,next}
These should match 'start' as target_ulong, not target_long.
On 32bit targets, the parameter was sign-extended to uint64_t,
so only the first mmap within the upper 2GB memory can succeed.
Signed-off-by: Luca Bonissi <qemu@bonslack.org>
Message-Id: <
327460e2-0ebd-9edb-426b-
1df80d16c32a@bonslack.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Anton Johansson [Thu, 13 Jul 2023 12:07:46 +0000 (14:07 +0200)]
accel/tcg: Zero-pad vaddr in tlb_debug output
In replacing target_ulong with vaddr and TARGET_FMT_lx with VADDR_PRIx,
the zero-padding of TARGET_FMT_lx got lost. Readd 16-wide zero-padding
for logging consistency.
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Anton Johansson <anjo@rev.ng>
Message-Id: <
20230713120746.26897-1-anjo@rev.ng>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Ilya Leoshkevich [Wed, 19 Jul 2023 22:11:18 +0000 (00:11 +0200)]
tcg/{i386, s390x}: Add earlyclobber to the op_add2's first output
i386 and s390x implementations of op_add2 require an earlyclobber,
which is currently missing. This breaks VCKSM in s390x guests. E.g., on
x86_64 the following op:
add2_i32 tmp2,tmp3,tmp2,tmp3,tmp3,tmp2 dead: 0 2 3 4 5 pref=none,0xffff
is translated to:
addl %ebx, %r12d
adcl %r12d, %ebx
Introduce a new C_N1_O1_I4 constraint, and make sure that earlyclobber
of aliased outputs is honored.
Cc: qemu-stable@nongnu.org
Fixes:
82790a870992 ("tcg: Add markup for output requires new register")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <
20230719221310.
1968845-7-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Richard Henderson [Sun, 16 Jul 2023 16:54:16 +0000 (16:54 +0000)]
accel/tcg: Take mmap_lock in load_atomic*_or_exit
For user-only, the probe for page writability may race with another
thread's mprotect. Take the mmap_lock around the operation. This
is still faster than the start/end_exclusive fallback.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Richard Henderson [Sat, 22 Jul 2023 10:23:06 +0000 (11:23 +0100)]
accel/tcg: Fix sense of read-only probes in ldst_atomicity
In the initial commit,
cdfac37be0d, the sense of the test is incorrect,
as the -1/0 return was confusing. In
bef6f008b981, we mechanically
invert all callers while changing to false/true return, preserving the
incorrectness of the test.
Now that the return sense is sane, it's easy to see that if !write,
then the page is not modifiable (i.e. most likely read-only, with
PROT_NONE handled via SIGSEGV).
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Richard Henderson [Mon, 17 Jul 2023 18:58:58 +0000 (19:58 +0100)]
include/exec: Add WITH_MMAP_LOCK_GUARD
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Jordan Niethe [Mon, 17 Jul 2023 09:30:01 +0000 (19:30 +1000)]
tcg/ppc: Fix race in goto_tb implementation
Commit
20b6643324 ("tcg/ppc: Reorg goto_tb implementation") modified
goto_tb to ensure only a single instruction was patched to prevent
incorrect behavior if a thread was in the middle of multiple
instructions when they were replaced. However this introduced a race
between loading the jmp target into TCG_REG_TB and patching and
executing the direct branch.
The relevant part of the goto_tb implementation:
ld TCG_REG_TB, TARGET_ADDR_LOCATION(TCG_REG_TB)
patch_location:
mtctr TCG_REG_TB
bctr
tb_target_set_jmp_target() will replace 'patch_location' with a direct
branch if the target is in range. The direct branch now relies on
TCG_REG_TB being set up correctly by the ld. Prior to this commit
multiple instructions were patched in for the direct branch case; these
instructions would initialize TCG_REG_TB to the same value as the branch
target.
Imagine the following sequence:
1) Thread A is executing the goto_tb sequence and loads the jmp
target into TCG_REG_TB.
2) Thread B updates the jmp target address and calls
tb_target_set_jmp_target(). This patches a new direct branch into the
goto_tb sequence.
3) Thread A executes the newly patched direct branch. The value in
TCG_REG_TB still contains the old jmp target.
TCG_REG_TB MUST contain the translation block's tc.ptr. Execution will
eventually crash after performing memory accesses generated from a
faulty value in TCG_REG_TB.
This presents as segfaults or illegal instruction exceptions.
Do not revert commit
20b6643324 as it did fix a different race
condition. Instead remove the direct branch optimization and always use
indirect branches.
The direct branch optimization can be re-added later with a race free
sequence.
Fixes:
20b6643324 ("tcg/ppc: Reorg goto_tb implementation")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1726
Reported-by: Anushree Mathur <anushree.mathur@linux.vnet.ibm.com>
Tested-by: Anushree Mathur <anushree.mathur@linux.vnet.ibm.com>
Tested-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Co-developed-by: Benjamin Gray <bgray@linux.ibm.com>
Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Message-Id: <
20230717093001.13167-1-jniethe5@gmail.com>
Bin Meng [Wed, 19 Jul 2023 16:24:55 +0000 (00:24 +0800)]
roms/opensbi: Upgrade from v1.3 to v1.3.1
Upgrade OpenSBI from v1.3 to v1.3.1 and the pre-built bios images
which fixes the boot failure seen when using QEMU to do a direct
kernel boot with Microchip Icicle Kit board machine.
The v1.3.1 release includes the following commits:
0907de3 lib: sbi: fix comment indent
eb736a5 lib: sbi_pmu: Avoid out of bounds access
7828eeb gpio/desginware: add Synopsys DesignWare APB GPIO support
c6a3573 lib: utils: Fix sbi_hartid_to_scratch() usage in ACLINT drivers
057eb10 lib: utils/gpio: Fix RV32 compile error for designware GPIO driver
Signed-off-by: Bin Meng <bmeng@tinylab.org>
Message-Id: <
20230719165817.889465-1-bmeng@tinylab.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Michael Tokarev [Sat, 22 Jul 2023 16:54:22 +0000 (19:54 +0300)]
Revert "linux-user: Fix qemu-arm to run static armhf binaries"
This reverts commit
518f32221af759a29500ac172c4c857bef142067.
It is causing similar segfaults at least on aarch64, ppc64el
and s390x. Let's revert this one for now and analyze what's
going on later.
Reopens: https://bugs.debian.org/
1040981
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Peter Maydell [Thu, 20 Jul 2023 08:54:07 +0000 (09:54 +0100)]
Merge tag 'pull-nbd-2023-07-19' of https://repo.or.cz/qemu/ericb into staging
NBD patches through 2023-07-19
- Denis V. Lunev: fix hang with 'ssh ... "qemu-nbd -c"'
- Eric Blake: preliminary work towards NBD 64-bit extensions
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# gpg: Signature made Wed 19 Jul 2023 21:26:47 BST
# gpg: using RSA key
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# gpg: Good signature from "Eric Blake <eblake@redhat.com>" [full]
# gpg: aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>" [full]
# gpg: aka "[jpeg image of size 6874]" [full]
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2 F3AA A7A1 6B4A 2527 436A
* tag 'pull-nbd-2023-07-19' of https://repo.or.cz/qemu/ericb:
nbd: Use enum for various negotiation modes
nbd/client: Add safety check on chunk payload length
nbd/client: Simplify cookie vs. index computation
nbd: s/handle/cookie/ to match NBD spec
nbd/server: Refactor to pass full request around
nbd/server: Prepare for alternate-size headers
nbd: Consistent typedef usage in header
nbd/client: Use smarter assert
qemu-nbd: make verbose bool and local variable in main()
qemu-nbd: handle dup2() error when qemu-nbd finished setup process
qemu-nbd: properly report error on error in dup2() after qemu_daemon()
qemu-nbd: properly report error if qemu_daemon() is failed
qemu-nbd: fix regression with qemu-nbd --fork run over ssh
qemu-nbd: pass structure into nbd_client_thread instead of plain char*
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Thu, 20 Jul 2023 08:53:52 +0000 (09:53 +0100)]
Merge tag 'linux-user-brk-fixes-pull-request' of https://github.com/hdeller/qemu-hppa into staging
linux-user: brk() syscall fixes and armhf static binary fix
Commit
86f04735ac ("linux-user: Fix brk() to release pages") introduced
the possibility for userspace applications to reduce memory footprint by
calling brk() with a lower address and as such free up memory, the same
way as the Linux kernel allows on physical machines.
This change introduced some failures for applications with errors like
- accesing bytes above the brk heap address on the same page,
- freeing memory below the initial brk address,
and introduced a behaviour which isn't done by the kernel (e.g. zeroing
memory above brk).
This patch series fixes those issues and has been tested with existing
programs (e.g. upx).
Additionally one patch fixes running static armhf executables (e.g. fstype)
which was broken since qemu-8.0.
Changes in v2:
- dropped patch to revert
d28b3c90cfad ("linux-user: Make sure initial brk(0)
is page-aligned")
- rephrased some commit messages
- fixed Cc email addresses, added new ones
- added R-b tags
Helge
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# gpg: Signature made Wed 19 Jul 2023 16:52:19 BST
# gpg: using EDDSA key
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# gpg: Good signature from "Helge Deller <deller@gmx.de>" [unknown]
# gpg: aka "Helge Deller <deller@kernel.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 4544 8228 2CD9 10DB EF3D 25F8 3E5F 3D04 A7A2 4603
# Subkey fingerprint: BCE9 123E 1AD2 9F07 C049 BBDE F712 B510 A23A 0F5F
* tag 'linux-user-brk-fixes-pull-request' of https://github.com/hdeller/qemu-hppa:
linux-user: Fix qemu-arm to run static armhf binaries
linux-user: Fix strace output for old_mmap
linux-user: Fix signed math overflow in brk() syscall
linux-user: Prohibit brk() to to shrink below initial heap address
linux-user: Fix qemu brk() to not zero bytes on current page
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Eric Blake [Thu, 8 Jun 2023 13:56:37 +0000 (08:56 -0500)]
nbd: Use enum for various negotiation modes
Deciphering the hard-coded list of integer return values from
nbd_start_negotiate() will only get more confusing when adding support
for 64-bit extended headers. Better is to name things in an enum.
Although the function in question is private to client.c, putting the
enum in a public header and including an enum-to-string conversion
will allow its use in more places in upcoming patches.
The enum is intentionally laid out so that operators like <= can be
used to group multiple modes with similar characteristics, and where
the least powerful mode has value 0, even though this patch does not
exploit that. No semantic change intended.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-ID: <
20230608135653.
2918540-9-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Eric Blake [Thu, 8 Jun 2023 13:56:36 +0000 (08:56 -0500)]
nbd/client: Add safety check on chunk payload length
Our existing use of structured replies either reads into a qiov capped
at 32M (NBD_CMD_READ) or caps allocation to 1000 bytes (see
NBD_MAX_MALLOC_PAYLOAD in block/nbd.c). But the existing length
checks are rather late; if we encounter a buggy (or malicious) server
that sends a super-large payload length, we should drop the connection
right then rather than assuming the layer on top will be careful.
This becomes more important when we permit 64-bit lengths which are
even more likely to have the potential for attempted denial of service
abuse.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <
20230608135653.
2918540-8-eblake@redhat.com>
Eric Blake [Thu, 8 Jun 2023 13:56:35 +0000 (08:56 -0500)]
nbd/client: Simplify cookie vs. index computation
Our code relies on a sentinel cookie value of zero for deciding when a
packet has been handled, as well as relying on array indices between 0
and MAX_NBD_REQUESTS-1 for dereferencing purposes. As long as we can
symmetrically convert between two forms, there is no reason to go with
the odd choice of using XOR with a random pointer, when we can instead
simplify the mappings with a mere offset of 1.
Using ((uint64_t)-1) as the sentinel instead of NULL such that the two
macros could be entirely eliminated might also be possible, but would
require a more careful audit to find places where we currently rely on
zero-initialization to be interpreted as the sentinel value, so I did
not pursue that course.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-ID: <
20230608135653.
2918540-7-eblake@redhat.com>
[eblake: enhance commit message]
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Eric Blake [Thu, 8 Jun 2023 13:56:34 +0000 (08:56 -0500)]
nbd: s/handle/cookie/ to match NBD spec
Externally, libnbd exposed the 64-bit opaque marker for each client
NBD packet as the "cookie", because it was less confusing when
contrasted with 'struct nbd_handle *' holding all libnbd state. It
also avoids confusion between the noun 'handle' as a way to identify a
packet and the verb 'handle' for reacting to things like signals.
Upstream NBD changed their spec to favor the name "cookie" based on
libnbd's recommendations[1], so we can do likewise.
[1] https://github.com/NetworkBlockDevice/nbd/commit/
ca4392eb2b
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-ID: <
20230608135653.
2918540-6-eblake@redhat.com>
[eblake: typo fix]
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Eric Blake [Thu, 8 Jun 2023 13:56:33 +0000 (08:56 -0500)]
nbd/server: Refactor to pass full request around
Part of NBD's 64-bit headers extension involves passing the client's
requested offset back as part of the reply header (one reason it
stated for this change: converting absolute offsets stored in
NBD_REPLY_TYPE_OFFSET_DATA to relative offsets within the buffer is
easier if the absolute offset of the buffer is also available). This
is a refactoring patch to pass the full request around the reply
stack, rather than just the handle, so that later patches can then
access request->from when extended headers are active. Meanwhile,
this patch enables us to now assert that simple replies are only
attempted when appropriate, and otherwise has no semantic change.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <
20230608135653.
2918540-5-eblake@redhat.com>
Eric Blake [Thu, 8 Jun 2023 13:56:32 +0000 (08:56 -0500)]
nbd/server: Prepare for alternate-size headers
Upstream NBD now documents[1] an extension that supports 64-bit effect
lengths in requests. As part of that extension, the size of the reply
headers will change in order to permit a 64-bit length in the reply
for symmetry[2]. Additionally, where the reply header is currently 16
bytes for simple reply, and 20 bytes for structured reply; with the
extension enabled, there will only be one extended reply header, of 32
bytes, with both structured and extended modes sending identical
payloads for chunked replies.
Since we are already wired up to use iovecs, it is easiest to allow
for this change in header size by splitting each structured reply
across multiple iovecs, one for the header (which will become wider in
a future patch according to client negotiation), and the other(s) for
the chunk payload, and removing the header from the payload struct
definitions. Rename the affected functions with s/structured/chunk/
to make it obvious that the code will be reused in extended mode.
Interestingly, the client side code never utilized the packed types,
so only the server code needs to be updated.
[1] https://github.com/NetworkBlockDevice/nbd/blob/extension-ext-header/doc/proto.md
as of NBD commit
e6f3b94a934
[2] Note that on the surface, this is because some future server might
permit a 4G+ NBD_CMD_READ and need to reply with that much data in one
transaction. But even though the extended reply length is widened to
64 bits, for now the NBD spec is clear that servers will not reply
with more than a maximum payload bounded by the 32-bit
NBD_INFO_BLOCK_SIZE field; allowing a client and server to mutually
agree to transactions larger than 4G would require yet another
extension.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-ID: <
20230608135653.
2918540-4-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Eric Blake [Thu, 8 Jun 2023 13:56:31 +0000 (08:56 -0500)]
nbd: Consistent typedef usage in header
We had a mix of struct declarations followed by typedefs, and direct
struct definitions as part of a typedef. Pick a single style. Also
float forward declarations of opaque types to the top of the file,
rather than interspersed with function declarations, which will help a
future patch that wants to expose yet another opaque type that will be
referenced in NBDRequest. No semantic impact.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-ID: <
20230608135653.
2918540-3-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
[eblake: alter patch per mailing list feedback]
Signed-off-by: Eric Blake <eblake@redhat.com>
Eric Blake [Thu, 8 Jun 2023 13:56:30 +0000 (08:56 -0500)]
nbd/client: Use smarter assert
Assigning strlen() to a uint32_t and then asserting that it isn't too
large doesn't catch the case of an input string 4G in length.
Thankfully, the incoming strings can never be that large: if the
export name or query is reflecting a string the client got from the
server, we already guarantee that we dropped the NBD connection if the
server sent more than 32M in a single reply to our NBD_OPT_* request;
if the export name is coming from qemu, nbd_receive_negotiate()
asserted that strlen(info->name) <= NBD_MAX_STRING_SIZE; and
similarly, a query string via x->dirty_bitmap coming from the user was
bounds-checked in either qemu-nbd or by the limitations of QMP.
Still, it doesn't hurt to be more explicit in how we write our
assertions to not have to analyze whether inadvertent wraparound is
possible.
Fixes:
93676c88 ("nbd: Don't send oversize strings", v4.2.0)
Reported-by: Dr. David Alan Gilbert <dave@treblig.org>
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <
20230608135653.
2918540-2-eblake@redhat.com>
Denis V. Lunev [Mon, 17 Jul 2023 20:25:20 +0000 (22:25 +0200)]
qemu-nbd: make verbose bool and local variable in main()
Pass 'verbose' to nbd_client_thread() inside NbdClientOpts which looks
a little bit cleaner and make it bool as it is used as bool actually.
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Eric Blake <eblake@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <
20230717202520.236999-1-den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Denis V. Lunev [Mon, 17 Jul 2023 14:55:44 +0000 (16:55 +0200)]
qemu-nbd: handle dup2() error when qemu-nbd finished setup process
Fail on error, we are in trouble.
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Eric Blake <eblake@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <
20230717145544.194786-6-den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: avoid intermediate variable]
Signed-off-by: Eric Blake <eblake@redhat.com>
Denis V. Lunev [Mon, 17 Jul 2023 14:55:42 +0000 (16:55 +0200)]
qemu-nbd: properly report error on error in dup2() after qemu_daemon()
We are trying to temporarily redirect stderr of daemonized process to
a pipe to report a error and get failed. In that case we could not
use error_report() helper, but should write the message directly into
the problematic pipe.
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Eric Blake <eblake@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <
20230717145544.194786-4-den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: rearrange patch series, fix typo]
Signed-off-by: Eric Blake <eblake@redhat.com>
Denis V. Lunev [Mon, 17 Jul 2023 14:55:43 +0000 (16:55 +0200)]
qemu-nbd: properly report error if qemu_daemon() is failed
errno has been overwritten by dup2() just below qemu_daemon() and thus
improperly returned to the caller. Fix accordingly.
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Eric Blake <eblake@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <
20230717145544.194786-5-den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: reorder patch series]
Signed-off-by: Eric Blake <eblake@redhat.com>
Denis V. Lunev [Mon, 17 Jul 2023 14:55:41 +0000 (16:55 +0200)]
qemu-nbd: fix regression with qemu-nbd --fork run over ssh
Commit
e6df58a5578fee7a50bbf36f4a50a2781cff855d
Author: Hanna Reitz <hreitz@redhat.com>
Date: Wed May 8 23:18:18 2019 +0200
qemu-nbd: Do not close stderr
has introduced an interesting regression. Original behavior of
ssh somehost qemu-nbd /home/den/tmp/file -f raw --fork
was the following:
* qemu-nbd was started as a daemon
* the command execution is done and ssh exited with success
The patch has changed this behavior and 'ssh' command now hangs forever.
According to the normal specification of the daemon() call, we should
endup with STDERR pointing to /dev/null. That should be done at the
very end of the successful startup sequence when the pipe to the
bootstrap process (used for diagnostics) is no longer needed.
This could be achived in the same way as done for 'qemu-nbd -c' case.
That was commit
0eaf453e, also fixing up
e6df58a5. STDOUT copying to
STDERR does the trick.
This also leads to proper 'ssh' connection closing which fixes my
original problem.
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Eric Blake <eblake@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
CC: Hanna Reitz <hreitz@redhat.com>
CC: <qemu-stable@nongnu.org>
Message-ID: <
20230717145544.194786-3-den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Denis V. Lunev [Mon, 17 Jul 2023 14:55:40 +0000 (16:55 +0200)]
qemu-nbd: pass structure into nbd_client_thread instead of plain char*
We are going to pass additional flag inside next patch.
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Eric Blake <eblake@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
CC: <qemu-stable@nongnu.org>
Message-ID: <
20230717145544.194786-2-den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Peter Maydell [Wed, 19 Jul 2023 19:31:43 +0000 (20:31 +0100)]
Update version for v8.1.0-rc0 release
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Wed, 19 Jul 2023 12:42:17 +0000 (13:42 +0100)]
Merge tag 'pull-riscv-to-apply-
20230719-1' of https://github.com/alistair23/qemu into staging
Fourth RISC-V PR for 8.1
* Fix LMUL check to use VLEN
* Fix typo field in NUMA error_report
* check priv_ver before auto-enable zca/zcd/zcf
* Fix disas output of upper immediates
* tidy CPU firmware section
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# GDcn9cpouyE/Vp/358PuEe1gW9GFMH0CbYBJ66P0hI/76iPfwLY=
# =MOsI
# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 19 Jul 2023 05:44:51 BST
# gpg: using RSA key
6AE902B6A7CA877D6D659296AF7C95130C538013
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 6AE9 02B6 A7CA 877D 6D65 9296 AF7C 9513 0C53 8013
* tag 'pull-riscv-to-apply-
20230719-1' of https://github.com/alistair23/qemu:
target/riscv: Fix LMUL check to use VLEN
hw/riscv: Fix typo field in error_report
target/riscv/cpu.c: check priv_ver before auto-enable zca/zcd/zcf
riscv/disas: Fix disas output of upper immediates
docs/system/target-riscv.rst: tidy CPU firmware section
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Wed, 19 Jul 2023 12:41:20 +0000 (13:41 +0100)]
Merge tag 'nvme-next-pull-request' of https://gitlab.com/birkelund/qemu into staging
hw/nvme fixes
* fix shadow doorbell endian issue
# -----BEGIN PGP SIGNATURE-----
#
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# =j1TL
# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 19 Jul 2023 08:35:28 BST
# gpg: using RSA key
522833AA75E2DCE6A24766C04DE1AF316D4F0DE9
# gpg: Good signature from "Klaus Jensen <its@irrelevant.dk>" [full]
# gpg: aka "Klaus Jensen <k.jensen@samsung.com>" [full]
# Primary key fingerprint: DDCA 4D9C 9EF9 31CC 3468 4272 63D5 6FC5 E55D A838
# Subkey fingerprint: 5228 33AA 75E2 DCE6 A247 66C0 4DE1 AF31 6D4F 0DE9
* tag 'nvme-next-pull-request' of https://gitlab.com/birkelund/qemu:
hw/nvme: fix endianness issue for shadow doorbells
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Wed, 19 Jul 2023 08:43:38 +0000 (09:43 +0100)]
Merge tag 'pull-request-2023-07-18' of https://gitlab.com/thuth/qemu into staging
* Fix s390x KVM guests when compiling with --without-default-devices
* Fix /proc/cpuinfo features list in s390x linux-user emulation
* Generate FreeBSD VM package list via lcitool
* Disable the flaky test_sbsaref_edk2_firmware avocado test by default
# -----BEGIN PGP SIGNATURE-----
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# yUJNn+Jkdns=
# =dw94
# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 18 Jul 2023 10:29:02 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]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5
* tag 'pull-request-2023-07-18' of https://gitlab.com/thuth/qemu:
tests/avocado: Disable the test_sbsaref_edk2_firmware by default
tests/vm/freebsd: Get up-to-date package list from lcitool vars file
tests/vm: Introduce get_qemu_packages_from_lcitool_json() helper
tests/lcitool: Refresh generated files
tests/lcitool: Generate distribution packages list in JSON format
tests/qtest: Fix typo in multifd cancel test
linux-user/elfload: Fix /proc/cpuinfo features: on s390x
s390x: Fix QEMU abort by selecting S390_FLIC_KVM
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Klaus Jensen [Tue, 18 Jul 2023 09:44:17 +0000 (11:44 +0200)]
hw/nvme: fix endianness issue for shadow doorbells
In commit
2fda0726e514 ("hw/nvme: fix missing endian conversions for
doorbell buffers"), we fixed shadow doorbells for big-endian guests
running on little endian hosts. But I did not fix little-endian guests
on big-endian hosts. Fix this.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1765
Fixes:
3f7fe8de3d49 ("hw/nvme: Implement shadow doorbell buffer support")
Cc: qemu-stable@nongnu.org
Reported-by: Thomas Huth <thuth@redhat.com>
Tested-by: Cédric Le Goater <clg@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Rob Bradford [Tue, 18 Jul 2023 13:11:44 +0000 (14:11 +0100)]
target/riscv: Fix LMUL check to use VLEN
The previous check was failing with:
VLEN=128 ELEN = 64 SEW = 16 and LMUL = 1/8 which is a
valid combination.
Fix the check to allow valid combinations when VLEN is a multiple of
ELEN.
From the specification:
"In general, the requirement is to support LMUL ≥ SEWMIN/ELEN, where
SEWMIN is the narrowest supported SEW value and ELEN is the widest
supported SEW value. In the standard extensions, SEWMIN=8. For standard
vector extensions with ELEN=32, fractional LMULs of 1/2 and 1/4 must be
supported. For standard vector extensions with ELEN=64, fractional LMULs
of 1/2, 1/4, and 1/8 must be supported." Elsewhere in the specification
it makes clear that VLEN>=ELEN.
From inspection this new check allows:
VLEN=ELEN=64 1/2, 1/4, 1/8 for SEW >=8
VLEN=ELEN=32 1/2, 1/4 for SEW >=8
Fixes:
d9b7609a1fb2 ("target/riscv: rvv-1.0: configure instructions")
Signed-off-by: Rob Bradford <rbradford@rivosinc.com>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Message-Id: <
20230718131316.12283-2-rbradford@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Zhao Liu [Tue, 18 Jul 2023 08:07:12 +0000 (16:07 +0800)]
hw/riscv: Fix typo field in error_report
"smp.cpus" means the number of online CPUs and "smp.max_cpus" means the
total number of CPUs.
riscv_numa_get_default_cpu_node_id() checks "smp.cpus" and the
"available CPUs" description in the next error message also indicates
online CPUs.
So report "smp.cpus" in error_report() instand of "smp.max_cpus".
Since "smp.cpus" is "unsigned int", use "%u".
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <
20230718080712.503333-1-zhao1.liu@linux.intel.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Daniel Henrique Barboza [Mon, 17 Jul 2023 15:41:41 +0000 (12:41 -0300)]
target/riscv/cpu.c: check priv_ver before auto-enable zca/zcd/zcf
Commit
bd30559568 made changes in how we're checking and disabling
extensions based on env->priv_ver. One of the changes was to move the
extension disablement code to the end of realize(), being able to
disable extensions after we've auto-enabled some of them.
An unfortunate side effect of this change started to happen with CPUs
that has an older priv version, like sifive-u54. Starting on commit
2288a5ce43e5 we're auto-enabling zca, zcd and zcf if RVC is enabled,
but these extensions are priv version 1.12.0. When running a cpu that
has an older priv ver (like sifive-u54) the user is spammed with
warnings like these:
qemu-system-riscv64: warning: disabling zca extension for hart 0x0000000000000000 because privilege spec version does not match
qemu-system-riscv64: warning: disabling zcd extension for hart 0x0000000000000000 because privilege spec version does not match
The warnings are part of the code that disables the extension, but in this
case we're throwing user warnings for stuff that we enabled on our own,
without user intervention. Users are left wondering what they did wrong.
A quick 8.1 fix for this nuisance is to check the CPU priv spec before
auto-enabling zca/zcd/zcf. A more appropriate fix will include a more
robust framework that will account for both priv_ver and user choice
when auto-enabling/disabling extensions, but for 8.1 we'll make it do
with this simple check.
It's also worth noticing that this is the only case where we're
auto-enabling extensions based on a criteria (in this case RVC) that
doesn't match the priv spec of the extensions we're enabling. There's no
need for more 8.1 band-aids.
Cc: Conor Dooley <conor@kernel.org>
Fixes:
2288a5ce43e5 ("target/riscv: add cfg properties for Zc* extension")
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Message-Id: <
20230717154141.60898-1-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Christoph Müllner [Tue, 11 Jul 2023 07:50:51 +0000 (09:50 +0200)]
riscv/disas: Fix disas output of upper immediates
The GNU assembler produces the following output for instructions
with upper immediates:
00002597 auipc a1,0x2
000024b7 lui s1,0x2
6409 lui s0,0x2 # c.lui
The immediate operands of upper immediates are not shifted.
However, the QEMU disassembler prints them shifted:
00002597 auipc a1,8192
000024b7 lui s1,8192
6409 lui s0,8192 # c.lui
The current implementation extracts the immediate bits and shifts the by 12,
so the internal representation of the immediate is the actual immediate.
However, the immediates are later printed using rv_fmt_rd_imm or
rv_fmt_rd_offset, which don't undo the shift.
Let's fix this by using specific output formats for instructions
with upper immediates, that take care of the shift.
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <
20230711075051.
1531007-1-christoph.muellner@vrull.eu>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Daniel Henrique Barboza [Wed, 12 Jul 2023 14:37:28 +0000 (11:37 -0300)]
docs/system/target-riscv.rst: tidy CPU firmware section
This is how the content of the "RISC-V CPU firmware" section is
displayed after the html is generated:
"When using the sifive_u or virt machine there are three different
firmware boot options: 1. -bios default - This is the default behaviour
if no -bios option is included. (...) 3. -bios <file> - Tells QEMU to
load the specified file as the firmware."
It's all in the same paragraph, in a numbered list, and no special
formatting for the options.
Tidy it a bit by adding line breaks between items and its description.
Remove the numbered list. And apply formatting for the options cited in
the middle of the text.
Cc: qemu-trivial@nongnu.org
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <
20230712143728.383528-1-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Helge Deller [Mon, 17 Jul 2023 20:06:02 +0000 (22:06 +0200)]
linux-user: Fix qemu-arm to run static armhf binaries
qemu-user crashes immediately when running static binaries on the armhf
architecture. The problem is the memory layout where the executable is
loaded before the interpreter library, in which case the reserved brk
region clashes with the interpreter code and is released before qemu
tries to start the program.
At load time qemu calculates a brk value for interpreter and executable
each. The fix is to choose the higher one of both.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: Andreas Schwab <schwab@suse.de>
Cc: qemu-stable@nongnu.org
Reported-by: Venkata.Pyla@toshiba-tsip.com
Closes: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=
1040981
Helge Deller [Mon, 17 Jul 2023 17:06:32 +0000 (19:06 +0200)]
linux-user: Fix strace output for old_mmap
The old_mmap syscall (e.g. on i386) hands over the parameters in
a struct. Adjust the strace output to print the correct values.
Signed-off-by: Helge Deller <deller@gmx.de>
Reported-by: John Reiser <jreiser@BitWagon.com>
Closes: https://gitlab.com/qemu-project/qemu/-/issues/1760
Helge Deller [Mon, 17 Jul 2023 10:39:38 +0000 (12:39 +0200)]
linux-user: Fix signed math overflow in brk() syscall
Fix the math overflow when calculating the new_malloc_size.
new_host_brk_page and brk_page are unsigned integers. If userspace
reduces the heap, new_host_brk_page is lower than brk_page which results
in a huge positive number (but should actually be negative).
Fix it by adding a proper check and as such make the code more readable.
Signed-off-by: Helge Deller <deller@gmx.de>
Tested-by: "Markus F.X.J. Oberhumer" <markus@oberhumer.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Fixes:
86f04735ac ("linux-user: Fix brk() to release pages")
Cc: qemu-stable@nongnu.org
Buglink: https://github.com/upx/upx/issues/683
Helge Deller [Mon, 17 Jul 2023 10:27:13 +0000 (12:27 +0200)]
linux-user: Prohibit brk() to to shrink below initial heap address
Since commit
86f04735ac ("linux-user: Fix brk() to release pages") it's
possible for userspace applications to reduce their memory footprint by
calling brk() with a lower address and free up memory. Before that commit
guest heap memory was never unmapped.
But the Linux kernel prohibits to reduce brk() below the initial memory
address which is set at startup by the set_brk() function in binfmt_elf.c.
Such a range check was missed in commit
86f04735ac.
This patch adds the missing check by storing the initial brk value in
initial_target_brk and verify any new brk addresses against that value.
Tested with the i386 upx binary from
https://github.com/upx/upx/releases/download/v4.0.2/upx-4.0.2-i386_linux.tar.xz
Signed-off-by: Helge Deller <deller@gmx.de>
Tested-by: "Markus F.X.J. Oberhumer" <markus@oberhumer.com>
Fixes:
86f04735ac ("linux-user: Fix brk() to release pages")
Cc: qemu-stable@nongnu.org
Buglink: https://github.com/upx/upx/issues/683
Helge Deller [Mon, 17 Jul 2023 06:37:17 +0000 (08:37 +0200)]
linux-user: Fix qemu brk() to not zero bytes on current page
The qemu brk() implementation is too aggressive and cleans remaining bytes
on the current page above the last brk address.
But some existing applications are buggy and read/write bytes above their
current heap address. On a phyiscal machine this does not trigger a
runtime error as long as the access happens on the same page. Additionally
the Linux kernel allocates only full pages and does no zeroing on already
allocated pages, even if the brk address is lowered.
Fix qemu to behave the same way as the kernel does. Do not touch already
allocated pages, and - when running with different page sizes of guest and
host - zero out only those memory areas where the host page size is bigger
than the guest page size.
Signed-off-by: Helge Deller <deller@gmx.de>
Tested-by: "Markus F.X.J. Oberhumer" <markus@oberhumer.com>
Fixes:
86f04735ac ("linux-user: Fix brk() to release pages")
Cc: qemu-stable@nongnu.org
Buglink: https://github.com/upx/upx/issues/683
Thomas Huth [Mon, 10 Jul 2023 17:01:55 +0000 (19:01 +0200)]
tests/avocado: Disable the test_sbsaref_edk2_firmware by default
The test fails occasionally, see e.g.:
https://gitlab.com/thuth/qemu/-/jobs/
4196177756#L489
https://gitlab.com/thuth/qemu/-/jobs/
4623296271#L290
It also fails on my laptop in ca. 50% of all runs. Thus disable it by
default by using the QEMU_TEST_FLAKY_TESTS environment variable to fence
it (which we also already use in flaky qtests). While we're at it, also
document this variable in docs/devel/testing.rst.
Message-Id: <
20230710170155.7192-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Philippe Mathieu-Daudé [Tue, 11 Jul 2023 14:49:22 +0000 (16:49 +0200)]
tests/vm/freebsd: Get up-to-date package list from lcitool vars file
Get an up-to-date package list from lcitool, that way we
don't need to manually keep this array in sync.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Inspired-by: Thomas Huth <thuth@redhat.com>
Message-Id: <
20230711144922.67491-5-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Philippe Mathieu-Daudé [Tue, 11 Jul 2023 14:49:21 +0000 (16:49 +0200)]
tests/vm: Introduce get_qemu_packages_from_lcitool_json() helper
Add the get_qemu_packages_from_lcitool_json() helper which return
such package list from a lcitool env var file in JSON format.
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <
20230711144922.67491-4-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Philippe Mathieu-Daudé [Tue, 11 Jul 2023 14:49:20 +0000 (16:49 +0200)]
tests/lcitool: Refresh generated files
Refresh the generated files by running:
$ make lcitool-refresh
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <
20230711144922.67491-3-philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
[thuth: Drop changes to libpmem-dev and libxen-dev]
Signed-off-by: Thomas Huth <thuth@redhat.com>
Philippe Mathieu-Daudé [Tue, 11 Jul 2023 14:49:19 +0000 (16:49 +0200)]
tests/lcitool: Generate distribution packages list in JSON format
Add the generate_pkglist() helper to generate a list of packages
required by a distribution to build QEMU.
Since we can not add a "THIS FILE WAS AUTO-GENERATED" comment in
JSON, create the files under tests/vm/generated/ sub-directory;
add a README mentioning the files are generated.
Suggested-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <
20230711144922.67491-2-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Fabiano Rosas [Tue, 11 Jul 2023 21:21:31 +0000 (18:21 -0300)]
tests/qtest: Fix typo in multifd cancel test
This wasn't noticed because the test is currently disabled.
Fixes:
02f56e3de ("tests/qtest: massively speed up migration-test")
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Message-Id: <
20230711212131.2370-1-farosas@suse.de>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Ilya Leoshkevich [Tue, 27 Jun 2023 15:13:33 +0000 (17:13 +0200)]
linux-user/elfload: Fix /proc/cpuinfo features: on s390x
elf_hwcap_str() takes a bit number, but compares it for equality with
the HWCAP_S390_* masks. This causes /proc/cpuinfo to display incorrect
hwcaps.
Fix by introducing the HWCAP_S390_NR_* constants and using them in
elf_hwcap_str() instead of the HWCAP_S390_*. While at it, add the
missing nnpa, pcimio and sie hwcaps from the latest kernel.
Output before:
features : esan3 zarch stfle msa
Output after:
features : esan3 zarch stfle msa ldisp eimm etf3eh highgprs vx vxe
Fixes:
e19807bee357 ("linux-user/elfload: Introduce elf_hwcap_str() on s390x")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20230627151356.273259-1-iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Cédric Le Goater [Tue, 11 Jul 2023 15:14:40 +0000 (17:14 +0200)]
s390x: Fix QEMU abort by selecting S390_FLIC_KVM
If QEMU is built with --without-default-devices, the s390-flic-kvm
device is missing and QEMU aborts when started with the KVM accelerator.
Make sure it's available by selecting S390_FLIC_KVM in Kconfig.
Consequently, this also fixes an abort in tests/qtest/migration-test.
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Message-Id: <
20230711151440.716822-1-clg@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Richard Henderson [Mon, 17 Jul 2023 14:49:27 +0000 (15:49 +0100)]
Merge tag 'block-pull-request' of https://gitlab.com/stefanha/qemu into staging
Pull request
Fix the hang in the nvme:// block driver during startup.
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# gpg: Signature made Mon 17 Jul 2023 02:21:30 PM BST
# gpg: using RSA key
8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
* tag 'block-pull-request' of https://gitlab.com/stefanha/qemu:
block/nvme: invoke blk_io_plug_call() outside q->lock
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Richard Henderson [Mon, 17 Jul 2023 14:48:27 +0000 (15:48 +0100)]
Merge tag 'pull-target-arm-
20230717' of https://git.linaro.org/people/pmaydell/qemu-arm into staging
target-arm queue:
* hw/arm/sbsa-ref: set 'slots' property of xhci
* linux-user: Remove pointless NULL check in clock_adjtime handling
* ptw: Fix S1_ptw_translate() debug path
* ptw: Account for FEAT_RME when applying {N}SW, SA bits
* accel/tcg: Zero-pad PC in TCG CPU exec trace lines
* hw/nvram: Avoid unnecessary Xilinx eFuse backstore write
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# gpg: Signature made Mon 17 Jul 2023 01:47:01 PM BST
# gpg: using RSA key
E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg: aka "Peter Maydell <peter@archaic.org.uk>" [unknown]
* tag 'pull-target-arm-
20230717' of https://git.linaro.org/people/pmaydell/qemu-arm:
hw/nvram: Avoid unnecessary Xilinx eFuse backstore write
accel/tcg: Zero-pad PC in TCG CPU exec trace lines
target/arm/ptw.c: Account for FEAT_RME when applying {N}SW, SA bits
target/arm: Fix S1_ptw_translate() debug path
target/arm/ptw.c: Add comments to S1Translate struct fields
linux-user: Remove pointless NULL check in clock_adjtime handling
hw/arm/sbsa-ref: set 'slots' property of xhci
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Richard Henderson [Mon, 17 Jul 2023 14:44:54 +0000 (15:44 +0100)]
Merge tag 'ui-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging
ui & audio fixes
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# gpg: Signature made Mon 17 Jul 2023 01:44:18 PM BST
# gpg: using RSA key
87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg: issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [full]
# gpg: aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [full]
* tag 'ui-pull-request' of https://gitlab.com/marcandre.lureau/qemu:
audio/pw: improve channel position code
audio/pw: remove wrong comment
audio/pw: simplify error reporting in stream creation
audio/pw: add more error reporting
audio/pw: factorize some common code
audio/pw: add more details on error
audio/pw: trace during init before calling pipewire API
audio/pw: needless check for NULL
audio/pw: drop needless case statement
audio/pw: Pipewire->PipeWire case fix for user-visible text
tests/lcitool: add pipewire
libvirt-ci: update submodule to cover pipewire
ui/gtk: skip refresh if new dmabuf has been submitted
ui/gtk: set scanout-mode right before scheduling draw
virtio-gpu-udmabuf: correct naming of QemuDmaBuf size properties
virtio-gpu: replace the surface with null surface when resetting
ui/gtk: Make sure the right EGL context is currently bound
ui/vnc-clipboard: fix infinite loop in inflate_buffer (CVE-2023-3255)
virtio-gpu: fix potential divide-by-zero regression
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Stefan Hajnoczi [Wed, 12 Jul 2023 19:16:28 +0000 (15:16 -0400)]
block/nvme: invoke blk_io_plug_call() outside q->lock
blk_io_plug_call() is invoked outside a blk_io_plug()/blk_io_unplug()
section while opening the NVMe drive from:
nvme_file_open() ->
nvme_init() ->
nvme_identify() ->
nvme_admin_cmd_sync() ->
nvme_submit_command() ->
blk_io_plug_call()
blk_io_plug_call() immediately invokes the given callback when the
current thread is not plugged, as is the case during nvme_file_open().
Unfortunately, nvme_submit_command() calls blk_io_plug_call() with
q->lock still held:
...
q->sq.tail = (q->sq.tail + 1) % NVME_QUEUE_SIZE;
q->need_kick++;
blk_io_plug_call(nvme_unplug_fn, q);
qemu_mutex_unlock(&q->lock);
^^^^^^^^^^^^^^^^^^^^^^^^^^^
nvme_unplug_fn() deadlocks trying to acquire q->lock because the lock is
already acquired by the same thread. The symptom is that QEMU hangs
during startup while opening the NVMe drive.
Fix this by moving the blk_io_plug_call() outside q->lock. This is safe
because no other thread runs code related to this queue and
blk_io_plug_call()'s internal state is immune to thread safety issues
since it is thread-local.
Reported-by: Lukáš Doktor <ldoktor@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Lukas Doktor <ldoktor@redhat.com>
Message-id:
20230712191628.252806-1-stefanha@redhat.com
Fixes:
f2e590002bd6 ("block/nvme: convert to blk_io_plug_call() API")
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Marc-André Lureau [Sat, 6 May 2023 16:37:35 +0000 (20:37 +0400)]
audio/pw: improve channel position code
Follow PulseAudio backend comment and code, and only implement the
channels QEMU actually supports at this point, and add the same comment
about limits and future mappings. Simplify a bit the code.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Volker Rümelin <vr_qemu@t-online.de>
Message-Id: <
20230506163735.
3481387-13-marcandre.lureau@redhat.com>
Marc-André Lureau [Sat, 6 May 2023 16:37:34 +0000 (20:37 +0400)]
audio/pw: remove wrong comment
The stream is actually created connected.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Volker Rümelin <vr_qemu@t-online.de>
Message-Id: <
20230506163735.
3481387-12-marcandre.lureau@redhat.com>
Marc-André Lureau [Sat, 6 May 2023 16:37:33 +0000 (20:37 +0400)]
audio/pw: simplify error reporting in stream creation
create_stream() now reports on all error paths.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Volker Rümelin <vr_qemu@t-online.de>
Message-Id: <
20230506163735.
3481387-11-marcandre.lureau@redhat.com>
Marc-André Lureau [Sat, 6 May 2023 16:37:32 +0000 (20:37 +0400)]
audio/pw: add more error reporting
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Volker Rümelin <vr_qemu@t-online.de>
Message-Id: <
20230506163735.
3481387-10-marcandre.lureau@redhat.com>
Marc-André Lureau [Sat, 6 May 2023 16:37:31 +0000 (20:37 +0400)]
audio/pw: factorize some common code
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Volker Rümelin <vr_qemu@t-online.de>
Message-Id: <
20230506163735.
3481387-9-marcandre.lureau@redhat.com>
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