Failure to truncate the inputs results in garbage for the carry-out.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1373
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230115012103.3131796-1-richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When ADCX is followed by ADOX or vice versa, the second instruction's
carry comes from EFLAGS and the condition codes use the CC_OP_ADCOX
operation. Retrieving the carry from EFLAGS is handled by this bit
of gen_ADCOX:
tcg_gen_extract_tl(carry_in, cpu_cc_src,
ctz32(cc_op == CC_OP_ADCX ? CC_C : CC_O), 1);
Unfortunately, in this case cc_op has been overwritten by the previous
"if" statement to CC_OP_ADCOX. This works by chance when the first
instruction is ADCX; however, if the first instruction is ADOX,
ADCX will incorrectly take its carry from OF instead of CF.
Fix by moving the computation of the new cc_op at the end of the function.
The included exhaustive test case fails without this patch and passes
afterwards.
Because ADCX/ADOX need not be invoked through the VEX prefix, this
regression bisects to commit 16fc5726a6e2 ("target/i386: reimplement
0x0f 0x38, add AVX", 2022-10-18). However, the mistake happened a
little earlier, when BMI instructions were rewritten using the new
decoder framework.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1471
Reported-by: Paul Jolly <https://gitlab.com/myitcv>
Fixes: 1d0b926150e5 ("target/i386: move scalar 0F 38 and 0F 3A instruction to new decoder", 2022-10-18)
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We forgot to set cc_src, which is used for computing C.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1370
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230114180601.2993644-1-richard.henderson@linaro.org>
Cc: qemu-stable@nongnu.org
Fixes: 1d0b926150e5 ("target/i386: move scalar 0F 38 and 0F 3A instruction to new decoder", 2022-10-18)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There were two problems here: not limiting the input to operand bits,
and not correctly handling large extraction length.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1372
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230114230542.3116013-3-richard.henderson@linaro.org>
Cc: qemu-stable@nongnu.org
Fixes: 1d0b926150e5 ("target/i386: move scalar 0F 38 and 0F 3A instruction to new decoder", 2022-10-18)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Use tcg_gen_atomic_cmpxchg_i128 for the atomic case,
and tcg_gen_qemu_ld/st_i128 otherwise.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use tcg_gen_atomic_cmpxchg_i64 for the atomic case,
and tcg_gen_nonatomic_cmpxchg_i64 otherwise.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
VRCPSS, VRSQRTSS and VCVTSx2Sx have a 32-bit or 64-bit memory operand,
which is represented in the decoding tables by X86_VEX_REPScalar. Add it
to the tables, and make validate_vex() handle the case of an instruction
that is in exception type 4 without the REP prefix and exception type 5
with it; this is the cas of VRCP and VRSQRT.
Reported-by: yongwoo <https://gitlab.com/yongwoo36>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1377
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When in 64-bit mode, IDT entiries are 16 bytes, so `intno * 16` is used
for base/limit/offset calculations. However, even in 64-bit mode, the
exception error code still uses bits [3,16) for the invlaid interrupt
index.
This means the error code should still be `intno * 8 + 2` even in 64-bit
mode.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1382
Signed-off-by: Joe Richey <joerichey@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* Run docker probe only if docker or podman are available
The docker probe uses "sudo -n" which can cause an e-mail with a security warning
each time when configure is run. Therefore run docker probe only if either docker
or podman are available.
That avoids the problematic "sudo -n" on build environments which have neither
docker nor podman installed.
Fixes: c4575b59155e2e00 ("configure: store container engine in config-host.mak")
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20221030083510.310584-1-sw@weilnetz.de>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20221117172532.538149-2-alex.bennee@linaro.org>
* tests/avocado/machine_aspeed.py: Reduce noise on the console for SDK tests
The Aspeed SDK images are based on OpenBMC which starts a lot of
services. The output noise on the console can break from time to time
the test waiting for the logging prompt.
Change the U-Boot bootargs variable to add "quiet" to the kernel
command line and reduce the output volume. This also drops the test on
the CPU id which was nice to have but not essential.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20221104075347.370503-1-clg@kaod.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20221117172532.538149-3-alex.bennee@linaro.org>
* tests/docker: allow user to override check target
This is useful when trying to bisect a particular failing test behind
a docker run. For example:
make docker-test-clang@fedora \
TARGET_LIST=arm-softmmu \
TEST_COMMAND="meson test qtest-arm/qos-test" \
J=9 V=1
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221117172532.538149-4-alex.bennee@linaro.org>
* docs/devel: add a maintainers section to development process
We don't currently have a clear place in the documentation to describe
the roles and responsibilities of a maintainer. Lets create one so we
can. I've moved a few small bits out of other files to try and keep
everything in one place.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221117172532.538149-5-alex.bennee@linaro.org>
* docs/devel: make language a little less code centric
We welcome all sorts of patches.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221117172532.538149-6-alex.bennee@linaro.org>
* docs/devel: simplify the minimal checklist
The bullet points are quite long and contain process tips. Move those
bits of the bullet to the relevant sections and link to them. Use a
table for nicer formatting of the checklist.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221117172532.538149-7-alex.bennee@linaro.org>
* docs/devel: try and improve the language around patch review
It is important that contributors take the review process seriously
and we collaborate in a respectful way while avoiding personal
attacks. Try and make this clear in the language.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221117172532.538149-8-alex.bennee@linaro.org>
* tests/avocado: Raise timeout for boot_linux.py:BootLinuxPPC64.test_pseries_tcg
On my machine, a debug build of QEMU takes about 260 seconds to
complete this test, so with the current timeout value of 180 seconds
it always times out. Double the timeout value to 360 so the test
definitely has enough time to complete.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20221110142901.3832318-1-peter.maydell@linaro.org>
Message-Id: <20221117172532.538149-9-alex.bennee@linaro.org>
* tests/avocado: introduce alpine virt test for CI
The boot_linux tests download and run a full cloud image boot and
start a full distro. While the ability to test the full boot chain is
worthwhile it is perhaps a little too heavy weight and causes issues
in CI. Fix this by introducing a new alpine linux ISO boot in
machine_aarch64_virt.
This boots a fully loaded -cpu max with all the bells and whistles in
31s on my machine. A full debug build takes around 180s on my machine
so we set a more generous timeout to cover that.
We don't add a test for lesser GIC versions although there is some
coverage for that already in the boot_xen.py tests. If we want to
introduce more comprehensive testing we can do it with a custom kernel
and initrd rather than a full distro boot.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221117172532.538149-10-alex.bennee@linaro.org>
* tests/avocado: skip aarch64 cloud TCG tests in CI
We now have a much lighter weight test in machine_aarch64_virt which
tests the full boot chain in less time. Rename the tests while we are
at it to make it clear it is a Fedora cloud image.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221117172532.538149-11-alex.bennee@linaro.org>
* gitlab: integrate coverage report
This should hopefully give is nice coverage information about what our
tests (or at least the subset we are running) have hit. Ideally we
would want a way to trigger coverage on tests likely to be affected by
the current commit.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221117172532.538149-12-alex.bennee@linaro.org>
* vhost: mask VIRTIO_F_RING_RESET for vhost and vhost-user devices
Commit 69e1c14aa2 ("virtio: core: vq reset feature negotation support")
enabled VIRTIO_F_RING_RESET by default for all virtio devices.
This feature is not currently emulated by QEMU, so for vhost and
vhost-user devices we need to make sure it is supported by the offloaded
device emulation (in-kernel or in another process).
To do this we need to add VIRTIO_F_RING_RESET to the features bitmap
passed to vhost_get_features(). This way it will be masked if the device
does not support it.
This issue was initially discovered with vhost-vsock and vhost-user-vsock,
and then also tested with vhost-user-rng which confirmed the same issue.
They fail when sending features through VHOST_SET_FEATURES ioctl or
VHOST_USER_SET_FEATURES message, since VIRTIO_F_RING_RESET is negotiated
by the guest (Linux >= v6.0), but not supported by the device.
Fixes: 69e1c14aa2 ("virtio: core: vq reset feature negotation support")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1318
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20221121101101.29400-1-sgarzare@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Acked-by: Jason Wang <jasowang@redhat.com>
* tests: acpi: whitelist DSDT before moving PRQx to _SB scope
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221121153613.3972225-2-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* acpi: x86: move RPQx field back to _SB scope
Commit 47a373faa6b2 (acpi: pc/q35: drop ad-hoc PCI-ISA bridge AML routines and let bus ennumeration generate AML)
moved ISA bridge AML generation to respective devices and was using
aml_alias() to provide PRQx fields in _SB. scope. However, it turned
out that SeaBIOS was not able to process Alias opcode when parsing DSDT,
resulting in lack of keyboard during boot (SeaBIOS console, grub, FreeDOS).
While fix for SeaBIOS is posted
https://mail.coreboot.org/hyperkitty/list/seabios@seabios.org/thread/RGPL7HESH5U5JRLEO6FP77CZVHZK5J65/
fixed SeaBIOS might not make into QEMU-7.2 in time.
Hence this workaround that puts PRQx back into _SB scope
and gets rid of aliases in ISA bridge description, so
DSDT will be parsable by broken SeaBIOS.
That brings back hardcoded references to ISA bridge
PCI0.S08.P40C/PCI0.SF8.PIRQ
where middle part now is auto generated based on slot it's
plugged in, but it should be fine as bridge initialization
also hardcodes PCI address of the bridge so it can't ever
move. Once QEMU tree has fixed SeaBIOS blob, we should be able
to drop this part and revert back to alias based approach
Reported-by: Volker Rümelin <vr_qemu@t-online.de>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221121153613.3972225-3-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* tests: acpi: x86: update expected DSDT after moving PRQx fields in _SB scope
Expected DSDT changes,
pc:
- Field (P40C, ByteAcc, NoLock, Preserve)
+ Scope (\_SB)
{
- PRQ0, 8,
- PRQ1, 8,
- PRQ2, 8,
- PRQ3, 8
+ Field (PCI0.S08.P40C, ByteAcc, NoLock, Preserve)
+ {
+ PRQ0, 8,
+ PRQ1, 8,
+ PRQ2, 8,
+ PRQ3, 8
+ }
}
- Alias (PRQ0, \_SB.PRQ0)
- Alias (PRQ1, \_SB.PRQ1)
- Alias (PRQ2, \_SB.PRQ2)
- Alias (PRQ3, \_SB.PRQ3)
q35:
- Field (PIRQ, ByteAcc, NoLock, Preserve)
- {
- PRQA, 8,
- PRQB, 8,
- PRQC, 8,
- PRQD, 8,
- Offset (0x08),
- PRQE, 8,
- PRQF, 8,
- PRQG, 8,
- PRQH, 8
+ Scope (\_SB)
+ {
+ Field (PCI0.SF8.PIRQ, ByteAcc, NoLock, Preserve)
+ {
+ PRQA, 8,
+ PRQB, 8,
+ PRQC, 8,
+ PRQD, 8,
+ Offset (0x08),
+ PRQE, 8,
+ PRQF, 8,
+ PRQG, 8,
+ PRQH, 8
+ }
}
- Alias (PRQA, \_SB.PRQA)
- Alias (PRQB, \_SB.PRQB)
- Alias (PRQC, \_SB.PRQC)
- Alias (PRQD, \_SB.PRQD)
- Alias (PRQE, \_SB.PRQE)
- Alias (PRQF, \_SB.PRQF)
- Alias (PRQG, \_SB.PRQG)
- Alias (PRQH, \_SB.PRQH)
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221121153613.3972225-4-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* MAINTAINERS: add mst to list of biosbits maintainers
Adding Michael's name to the list of bios bits maintainers so that all changes
and fixes into biosbits framework can go through his tree and he is notified.
Suggested-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Ani Sinha <ani@anisinha.ca>
Message-Id: <20221111151138.36988-1-ani@anisinha.ca>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* tests/avocado: configure acpi-bits to use avocado timeout
Instead of using a hardcoded timeout, just rely on Avocado's built-in
test case timeout. This helps avoid timeout issues on machines where 60
seconds is not sufficient.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20221115212759.3095751-1-jsnow@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Ani Sinha <ani@anisinha.ca>
* acpi/tests/avocado/bits: keep the work directory when BITS_DEBUG is set in env
Debugging bits issue often involves running the QEMU command line manually
outside of the avocado environment with the generated ISO. Hence, its
inconvenient if the iso gets cleaned up after the test has finished. This change
makes sure that the work directory is kept after the test finishes if the test
is run with BITS_DEBUG=1 in the environment so that the iso is available for use
with the QEMU command line.
CC: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Ani Sinha <ani@anisinha.ca>
Message-Id: <20221117113630.543495-1-ani@anisinha.ca>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* virtio: disable error for out of spec queue-enable
Virtio 1.0 is pretty clear that features have to be
negotiated before enabling VQs. Unfortunately Seabios
ignored this ever since gaining 1.0 support (UEFI is ok).
Comment the error out for now, and add a TODO.
Fixes: 3c37f8b8d1 ("virtio: introduce virtio_queue_enable()")
Cc: "Kangjie Xu" <kangjie.xu@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20221121200339.362452-1-mst@redhat.com>
* hw/loongarch: Add default stdout uart in fdt
Add "chosen" subnode into LoongArch fdt, and set it's
"stdout-path" prop to uart node.
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20221115114923.3372414-1-yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
* hw/loongarch: Fix setprop_sized method in fdt rtc node.
Fix setprop_sized method in fdt rtc node.
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20221116040300.3459818-1-yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
* hw/loongarch: Replace the value of uart info with macro
Using macro to replace the value of uart info such as addr, size
in acpi_build method.
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20221115115008.3372489-1-yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
* target/arm: Don't do two-stage lookup if stage 2 is disabled
In get_phys_addr_with_struct(), we call get_phys_addr_twostage() if
the CPU supports EL2. However, we don't check here that stage 2 is
actually enabled. Instead we only check that inside
get_phys_addr_twostage() to skip stage 2 translation. This means
that even if stage 2 is disabled we still tell the stage 1 lookup to
do its page table walks via stage 2.
This works by luck for normal CPU accesses, but it breaks for debug
accesses, which are used by the disassembler and also by semihosting
file reads and writes, because the debug case takes a different code
path inside S1_ptw_translate().
This means that setups that use semihosting for file loads are broken
(a regression since 7.1, introduced in recent ptw refactoring), and
that sometimes disassembly in debug logs reports "unable to read
memory" rather than showing the guest insns.
Fix the bug by hoisting the "is stage 2 enabled?" check up to
get_phys_addr_with_struct(), so that we handle S2 disabled the same
way we do the "no EL2" case, with a simple single stage lookup.
Reported-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20221121212404.1450382-1-peter.maydell@linaro.org
* target/arm: Use signed quantity to represent VMSAv8-64 translation level
The LPA2 extension implements 52-bit virtual addressing for 4k and 16k
translation granules, and for the former, this means an additional level
of translation is needed. This means we start counting at -1 instead of
0 when doing a walk, and so 'level' is now a signed quantity, and should
be typed as such. So turn it from uint32_t into int32_t.
This avoids a level of -1 getting misinterpreted as being >= 3, and
terminating a page table walk prematurely with a bogus output address.
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Philippe Mathieu-Daudé <f4bug@amsat.org>
Cc: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* Update VERSION for v7.2.0-rc2
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* tests/avocado: Update the URLs of the advent calendar images
The qemu-advent-calendar.org server will be decommissioned soon.
I've mirrored the images that we use for the QEMU CI to gitlab,
so update their URLs to point to the new location.
Message-Id: <20221121102436.78635-1-thuth@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
* tests/qtest: Decrease the amount of output from the qom-test
The logs in the gitlab-CI have a size constraint, and sometimes
we already hit this limit. The biggest part of the log then seems
to be filled by the qom-test, so we should decrease the size of
the output - which can be done easily by not printing the path
for each property, since the path has already been logged at the
beginning of each node that we handle here.
However, if we omit the path, we should make sure to not recurse
into child nodes in between, so that it is clear to which node
each property belongs. Thus store the children and links in a
temporary list and recurse only at the end of each node, when
all properties have already been printed.
Message-Id: <20221121194240.149268-1-thuth@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
* tests/avocado: use new rootfs for orangepi test
The old URL wasn't stable. I suspect the current URL will only be
stable for a few months so maybe we need another strategy for hosting
rootfs snapshots?
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20221118113309.1057790-1-alex.bennee@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
* Revert "usbredir: avoid queuing hello packet on snapshot restore"
Run state is also in RUN_STATE_PRELAUNCH while "-S" is used.
This reverts commit 0631d4b448454ae8a1ab091c447e3f71ab6e088a
Signed-off-by: Joelle van Dyne <j@getutm.app>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The original commit broke the usage of usbredir with libvirt, which
starts every domain with "-S".
This workaround is no longer needed because the usbredir behavior
has been fixed in the meantime:
https://gitlab.freedesktop.org/spice/usbredir/-/merge_requests/61
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Message-Id: <1689cec3eadcea87255e390cb236033aca72e168.1669193161.git.jtomko@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* gtk: disable GTK Clipboard with a new meson option
The GTK Clipboard implementation may cause guest hangs.
Therefore implement new configure switch: --enable-gtk-clipboard,
as a meson option disabled by default, which warns in the help
text about the experimental nature of the feature.
Regenerate the meson build options to include it.
The initialization of the clipboard is gtk.c, as well as the
compilation of gtk-clipboard.c are now conditional on this new
option to be set.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1150
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jim Fehlig <jfehlig@suse.com>
Message-Id: <20221121135538.14625-1-cfontana@suse.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* hw/usb/hcd-xhci.c: spelling: tranfer
Fixes: effaf5a240e03020f4ae953e10b764622c3e87cc
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20221105114851.306206-1-mjt@msgid.tls.msk.ru>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* ui/gtk: prevent ui lock up when dpy_gl_update called again before current draw event occurs
A warning, "qemu: warning: console: no gl-unblock within" followed by
guest scanout lockup can happen if dpy_gl_update is called in a row
and the second call is made before gd_draw_event scheduled by the first
call is taking place. This is because draw call returns without decrementing
gl_block ref count if the dmabuf was already submitted as shown below.
(gd_gl_area_draw/gd_egl_draw)
if (dmabuf) {
if (!dmabuf->draw_submitted) {
return;
} else {
dmabuf->draw_submitted = false;
}
}
So it should not schedule any redundant draw event in case draw_submitted is
already set in gd_egl_fluch/gd_gl_area_scanout_flush.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20221021192315.9110-1-dongwon.kim@intel.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* hw/usb/hcd-xhci: Reset the XHCIState with device_cold_reset()
Currently the hcd-xhci-pci and hcd-xhci-sysbus devices, which are
mostly wrappers around the TYPE_XHCI device, which is a direct
subclass of TYPE_DEVICE. Since TYPE_DEVICE devices are not on any
qbus and do not get automatically reset, the wrapper devices both
reset the TYPE_XHCI device in their own reset functions. However,
they do this using device_legacy_reset(), which will reset the device
itself but not any bus it has.
Switch to device_cold_reset(), which avoids using a deprecated
function and also propagates reset along any child buses.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20221014145423.2102706-1-peter.maydell@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* hw/audio/intel-hda: don't reset codecs twice
Currently the intel-hda device has a reset method which manually
resets all the codecs by calling device_legacy_reset() on them. This
means they get reset twice, once because child devices on a qbus get
reset before the parent device's reset method is called, and then
again because we're manually resetting them.
Drop the manual reset call, and ensure that codecs are still reset
when the guest does a reset via ICH6_GCTL_RESET by using
device_cold_reset() (which resets all the devices on the qbus as well
as the device itself) instead of a direct call to the reset function.
This is a slight ordering change because the (only) codec reset now
happens before the controller registers etc are reset, rather than
once before and then once after, but the codec reset function
hda_audio_reset() doesn't care.
This lets us drop a use of device_legacy_reset(), which is
deprecated.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221014142632.2092404-2-peter.maydell@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* hw/audio/intel-hda: Drop unnecessary prototype
The only use of intel_hda_reset() is after its definition, so we
don't need to separately declare its prototype at the top of the
file; drop the unnecessary line.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221014142632.2092404-3-peter.maydell@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* add syx snapshot extras
* it compiles!
* virtiofsd: Add `sigreturn` to the seccomp whitelist
The virtiofsd currently crashes on s390x. This is because of a
`sigreturn` system call. See audit log below:
type=SECCOMP msg=audit(1669382477.611:459): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:virtd_t:s0-s0:c0.c1023 pid=6649 comm="virtiofsd" exe="/usr/libexec/virtiofsd" sig=31 arch=80000016 syscall=119 compat=0 ip=0x3fff15f748a code=0x80000000AUID="unset" UID="root" GID="root" ARCH=s390x SYSCALL=sigreturn
Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: German Maglione <gmaglione@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221125143946.27717-1-mhartmay@linux.ibm.com>
* libvhost-user: Fix wrong type of argument to formatting function (reported by LGTM)
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20220422070144.1043697-2-sw@weilnetz.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221126152507.283271-2-sw@weilnetz.de>
* libvhost-user: Fix format strings
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220422070144.1043697-3-sw@weilnetz.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221126152507.283271-3-sw@weilnetz.de>
* libvhost-user: Fix two more format strings
This fix is required for 32 bit hosts. The bug was detected by CI
for arm-linux, but is also relevant for i386-linux.
Reported-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221126152507.283271-4-sw@weilnetz.de>
* libvhost-user: Add format attribute to local function vu_panic
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220422070144.1043697-4-sw@weilnetz.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221126152507.283271-5-sw@weilnetz.de>
* MAINTAINERS: Add subprojects/libvhost-user to section "vhost"
Signed-off-by: Stefan Weil <sw@weilnetz.de>
[Michael agreed to act as maintainer for libvhost-user via email in
https://lore.kernel.org/qemu-devel/20221123015218-mutt-send-email-mst@kernel.org/.
--Stefan]
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221126152507.283271-6-sw@weilnetz.de>
* Add G_GNUC_PRINTF to function qemu_set_info_str and fix related issues
With the G_GNUC_PRINTF function attribute the compiler detects
two potential insecure format strings:
../../../net/stream.c:248:31: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
qemu_set_info_str(&s->nc, uri);
^~~
../../../net/stream.c:322:31: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
qemu_set_info_str(&s->nc, uri);
^~~
There are also two other warnings:
../../../net/socket.c:182:35: warning: zero-length gnu_printf format string [-Wformat-zero-length]
182 | qemu_set_info_str(&s->nc, "");
| ^~
../../../net/stream.c:170:35: warning: zero-length gnu_printf format string [-Wformat-zero-length]
170 | qemu_set_info_str(&s->nc, "");
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221126152507.283271-7-sw@weilnetz.de>
* del ramfile
* update seabios source from 1.16.0 to 1.16.1
git shortlog rel-1.16.0..rel-1.16.1
===================================
Gerd Hoffmann (3):
malloc: use variable for ZoneHigh size
malloc: use large ZoneHigh when there is enough memory
virtio-blk: use larger default request size
Igor Mammedov (1):
acpi: parse Alias object
Volker Rümelin (2):
pci: refactor the pci_config_*() functions
reset: force standard PCI configuration access
Xiaofei Lee (1):
virtio-blk: Fix incorrect type conversion in virtio_blk_op()
Xuan Zhuo (2):
virtio-mmio: read/write the hi 32 features for mmio
virtio: finalize features before using device
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* update seabios binaries to 1.16.1
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* fix for non i386 archs
* replay: Fix declaration of replay_read_next_clock
Fixes the build with gcc 13:
replay/replay-time.c:34:6: error: conflicting types for \
'replay_read_next_clock' due to enum/integer mismatch; \
have 'void(ReplayClockKind)' [-Werror=enum-int-mismatch]
34 | void replay_read_next_clock(ReplayClockKind kind)
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from ../qemu/replay/replay-time.c:14:
replay/replay-internal.h:139:6: note: previous declaration of \
'replay_read_next_clock' with type 'void(unsigned int)'
139 | void replay_read_next_clock(unsigned int kind);
| ^~~~~~~~~~~~~~~~~~~~~~
Fixes: 8eda206e090 ("replay: recording and replaying clock ticks")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Wilfred Mallawa <wilfred.mallawa@wdc.com>
Reviewed-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221129010547.284051-1-richard.henderson@linaro.org>
* hw/display/qxl: Have qxl_log_command Return early if no log_cmd handler
Only 3 command types are logged: no need to call qxl_phys2virt()
for the other types. Using different cases will help to pass
different structure sizes to qxl_phys2virt() in a pair of commits.
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221128202741.4945-2-philmd@linaro.org>
* hw/display/qxl: Document qxl_phys2virt()
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221128202741.4945-3-philmd@linaro.org>
* hw/display/qxl: Pass requested buffer size to qxl_phys2virt()
Currently qxl_phys2virt() doesn't check for buffer overrun.
In order to do so in the next commit, pass the buffer size
as argument.
For QXLCursor in qxl_render_cursor() -> qxl_cursor() we
verify the size of the chunked data ahead, checking we can
access 'sizeof(QXLCursor) + chunk->data_size' bytes.
Since in the SPICE_CURSOR_TYPE_MONO case the cursor is
assumed to fit in one chunk, no change are required.
In SPICE_CURSOR_TYPE_ALPHA the ahead read is handled in
qxl_unpack_chunks().
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221128202741.4945-4-philmd@linaro.org>
* hw/display/qxl: Avoid buffer overrun in qxl_phys2virt (CVE-2022-4144)
Have qxl_get_check_slot_offset() return false if the requested
buffer size does not fit within the slot memory region.
Similarly qxl_phys2virt() now returns NULL in such case, and
qxl_dirty_one_surface() aborts.
This avoids buffer overrun in the host pointer returned by
memory_region_get_ram_ptr().
Fixes: CVE-2022-4144 (out-of-bounds read)
Reported-by: Wenxu Yin (@awxylitol)
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1336
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221128202741.4945-5-philmd@linaro.org>
* hw/display/qxl: Assert memory slot fits in preallocated MemoryRegion
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221128202741.4945-6-philmd@linaro.org>
* block-backend: avoid bdrv_unregister_buf() NULL pointer deref
bdrv_*() APIs expect a valid BlockDriverState. Calling them with bs=NULL
leads to undefined behavior.
Jonathan Cameron reported this following NULL pointer dereference when a
VM with a virtio-blk device and a memory-backend-file object is
terminated:
1. qemu_cleanup() closes all drives, setting blk->root to NULL
2. qemu_cleanup() calls user_creatable_cleanup(), which results in a RAM
block notifier callback because the memory-backend-file is destroyed.
3. blk_unregister_buf() is called by virtio-blk's BlockRamRegistrar
notifier callback and undefined behavior occurs.
Fixes: baf422684d73 ("virtio-blk: use BDRV_REQ_REGISTERED_BUF optimization hint")
Co-authored-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221121211923.1993171-1-stefanha@redhat.com>
* target/arm: Set TCGCPUOps.restore_state_to_opc for v7m
This setting got missed, breaking v7m.
Fixes: 56c6c98df85c ("target/arm: Convert to tcg_ops restore_state_to_opc")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1347
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Evgeny Ermakov <evgeny.v.ermakov@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221129204146.550394-1-richard.henderson@linaro.org>
* Update VERSION for v7.2.0-rc3
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* hooks are now post mem access
* tests/qtests: override "force-legacy" for gpio virtio-mmio tests
The GPIO device is a VIRTIO_F_VERSION_1 devices but running with a
legacy MMIO interface we miss out that feature bit causing confusion.
For the GPIO test force the mmio bus to support non-legacy so we can
properly test it.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1333
Message-Id: <20221130112439.2527228-2-alex.bennee@linaro.org>
Acked-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* vhost: enable vrings in vhost_dev_start() for vhost-user devices
Commit 02b61f38d3 ("hw/virtio: incorporate backend features in features")
properly negotiates VHOST_USER_F_PROTOCOL_FEATURES with the vhost-user
backend, but we forgot to enable vrings as specified in
docs/interop/vhost-user.rst:
If ``VHOST_USER_F_PROTOCOL_FEATURES`` has not been negotiated, the
ring starts directly in the enabled state.
If ``VHOST_USER_F_PROTOCOL_FEATURES`` has been negotiated, the ring is
initialized in a disabled state and is enabled by
``VHOST_USER_SET_VRING_ENABLE`` with parameter 1.
Some vhost-user front-ends already did this by calling
vhost_ops.vhost_set_vring_enable() directly:
- backends/cryptodev-vhost.c
- hw/net/virtio-net.c
- hw/virtio/vhost-user-gpio.c
But most didn't do that, so we would leave the vrings disabled and some
backends would not work. We observed this issue with the rust version of
virtiofsd [1], which uses the event loop [2] provided by the
vhost-user-backend crate where requests are not processed if vring is
not enabled.
Let's fix this issue by enabling the vrings in vhost_dev_start() for
vhost-user front-ends that don't already do this directly. Same thing
also in vhost_dev_stop() where we disable vrings.
[1] https://gitlab.com/virtio-fs/virtiofsd
[2] https://github.com/rust-vmm/vhost/blob/240fc2966/crates/vhost-user-backend/src/event_loop.rs#L217
Fixes: 02b61f38d3 ("hw/virtio: incorporate backend features in features")
Reported-by: German Maglione <gmaglione@redhat.com>
Tested-by: German Maglione <gmaglione@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Acked-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Message-Id: <20221123131630.52020-1-sgarzare@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20221130112439.2527228-3-alex.bennee@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* hw/virtio: add started_vu status field to vhost-user-gpio
As per the fix to vhost-user-blk in f5b22d06fb (vhost: recheck dev
state in the vhost_migration_log routine) we really should track the
connection and starting separately.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20221130112439.2527228-4-alex.bennee@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* hw/virtio: generalise CHR_EVENT_CLOSED handling
..and use for both virtio-user-blk and virtio-user-gpio. This avoids
the circular close by deferring shutdown due to disconnection until a
later point. virtio-user-blk already had this mechanism in place so
generalise it as a vhost-user helper function and use for both blk and
gpio devices.
While we are at it we also fix up vhost-user-gpio to re-establish the
event handler after close down so we can reconnect later.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Message-Id: <20221130112439.2527228-5-alex.bennee@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* include/hw: VM state takes precedence in virtio_device_should_start
The VM status should always preempt the device status for these
checks. This ensures the device is in the correct state when we
suspend the VM prior to migrations. This restores the checks to the
order they where in before the refactoring moved things around.
While we are at it lets improve our documentation of the various
fields involved and document the two functions.
Fixes: 9f6bcfd99f (hw/virtio: move vm_running check to virtio_device_started)
Fixes: 259d69c00b (hw/virtio: introduce virtio_device_should_start)
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20221130112439.2527228-6-alex.bennee@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* hw/nvme: fix aio cancel in format
There are several bugs in the async cancel code for the Format command.
Firstly, cancelling a format operation neglects to set iocb->ret as well
as clearing the iocb->aiocb after cancelling the underlying aiocb which
causes the aio callback to ignore the cancellation. Trivial fix.
Secondly, and worse, because the request is queued up for posting to the
CQ in a bottom half, if the cancellation is due to the submission queue
being deleted (which calls blk_aio_cancel), the req structure is
deallocated in nvme_del_sq prior to the bottom half being schedulued.
Fix this by simply removing the bottom half, there is no reason to defer
it anyway.
Fixes: 3bcf26d3d619 ("hw/nvme: reimplement format nvm to allow cancellation")
Reported-by: Jonathan Derrick <jonathan.derrick@linux.dev>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
* hw/nvme: fix aio cancel in flush
Make sure that iocb->aiocb is NULL'ed when cancelling.
Fix a potential use-after-free by removing the bottom half and enqueuing
the completion directly.
Fixes: 38f4ac65ac88 ("hw/nvme: reimplement flush to allow cancellation")
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
* hw/nvme: fix aio cancel in zone reset
If the zone reset operation is cancelled but the block unmap operation
completes normally, the callback will continue resetting the next zone
since it neglects to check iocb->ret which will have been set to
-ECANCELED. Make sure that this is checked and bail out if an error is
present.
Secondly, fix a potential use-after-free by removing the bottom half and
enqueuing the completion directly.
Fixes: 63d96e4ffd71 ("hw/nvme: reimplement zone reset to allow cancellation")
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
* hw/nvme: fix aio cancel in dsm
When the DSM operation is cancelled asynchronously, we set iocb->ret to
-ECANCELED. However, the callback function only checks the return value
of the completed aio, which may have completed succesfully prior to the
cancellation and thus the callback ends up continuing the dsm operation
instead of bailing out. Fix this.
Secondly, fix a potential use-after-free by removing the bottom half and
enqueuing the completion directly.
Fixes: d7d1474fd85d ("hw/nvme: reimplement dsm to allow cancellation")
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
* hw/nvme: remove copy bh scheduling
Fix a potential use-after-free by removing the bottom half and enqueuing
the completion directly.
Fixes: 796d20681d9b ("hw/nvme: reimplement the copy command to allow aio cancellation")
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
* target/i386: allow MMX instructions with CR4.OSFXSR=0
MMX state is saved/restored by FSAVE/FRSTOR so the instructions are
not illegal opcodes even if CR4.OSFXSR=0. Make sure that validate_vex
takes into account the prefix and only checks HF_OSFXSR_MASK in the
presence of an SSE instruction.
Fixes: 20581aadec5e ("target/i386: validate VEX prefixes via the instructions' exception classes", 2022-10-18)
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1350
Reported-by: Helge Konetzka (@hejko on gitlab.com)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* target/i386: Always completely initialize TranslateFault
In get_physical_address, the canonical address check failed to
set TranslateFault.stage2, which resulted in an uninitialized
read from the struct when reporting the fault in x86_cpu_tlb_fill.
Adjust all error paths to use structure assignment so that the
entire struct is always initialized.
Reported-by: Daniel Hoffman <dhoff749@gmail.com>
Fixes: 9bbcf372193a ("target/i386: Reorg GET_HPHYS")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221201074522.178498-1-richard.henderson@linaro.org>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1324
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* hw/loongarch/virt: Add cfi01 pflash device
Add cfi01 pflash device for LoongArch virt machine
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221130100647.398565-1-yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
* Sync pc on breakpoints
* tests/qtest/migration-test: Fix unlink error and memory leaks
When running the migration test compiled with Clang from Fedora 37
and sanitizers enabled, there is an error complaining about unlink():
../tests/qtest/migration-test.c:1072:12: runtime error: null pointer
passed as argument 1, which is declared to never be null
/usr/include/unistd.h:858:48: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
../tests/qtest/migration-test.c:1072:12 in
(test program exited with status code 1)
TAP parsing error: Too few tests run (expected 33, got 20)
The data->clientcert and data->clientkey pointers can indeed be unset
in some tests, so we have to check them before calling unlink() with
those.
While we're at it, I also noticed that the code is only freeing
some but not all of the allocated strings in this function, and
indeed, valgrind is also complaining about memory leaks here.
So let's call g_free() on all allocated strings to avoid leaking
memory here.
Message-Id: <20221125083054.117504-1-thuth@redhat.com>
Tested-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
* target/s390x/tcg: Fix and improve the SACF instruction
The SET ADDRESS SPACE CONTROL FAST instruction is not privileged, it can be
used from problem space, too. Just the switching to the home address space
is privileged and should still generate a privilege exception. This bug is
e.g. causing programs like Java that use the "getcpu" vdso kernel function
to crash (see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=990417#26 ).
While we're at it, also check if DAT is not enabled. In that case the
instruction is supposed to generate a special operation exception.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/655
Message-Id: <20221201184443.136355-1-thuth@redhat.com>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
* hw/display/next-fb: Fix comment typo
Signed-off-by: Evgeny Ermakov <evgeny.v.ermakov@gmail.com>
Message-Id: <20221125160849.23711-1-evgeny.v.ermakov@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
* fix dev snapshots
* working syx snaps
* Revert "hw/loongarch/virt: Add cfi01 pflash device"
This reverts commit 14dccc8ea6ece7ee63273144fb55e4770a05e0fd.
Signed-off-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221205113007.683505-1-gaosong@loongson.cn>
* Update VERSION for v7.2.0-rc4
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Ani Sinha <ani@anisinha.ca>
Signed-off-by: John Snow <jsnow@redhat.com>
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Evgeny Ermakov <evgeny.v.ermakov@gmail.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Co-authored-by: Stefan Weil <sw@weilnetz.de>
Co-authored-by: Cédric Le Goater <clg@kaod.org>
Co-authored-by: Alex Bennée <alex.bennee@linaro.org>
Co-authored-by: Peter Maydell <peter.maydell@linaro.org>
Co-authored-by: Stefano Garzarella <sgarzare@redhat.com>
Co-authored-by: Igor Mammedov <imammedo@redhat.com>
Co-authored-by: Ani Sinha <ani@anisinha.ca>
Co-authored-by: John Snow <jsnow@redhat.com>
Co-authored-by: Michael S. Tsirkin <mst@redhat.com>
Co-authored-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Co-authored-by: Stefan Hajnoczi <stefanha@redhat.com>
Co-authored-by: Ard Biesheuvel <ardb@kernel.org>
Co-authored-by: Thomas Huth <thuth@redhat.com>
Co-authored-by: Joelle van Dyne <j@getutm.app>
Co-authored-by: Claudio Fontana <cfontana@suse.de>
Co-authored-by: Michael Tokarev <mjt@tls.msk.ru>
Co-authored-by: Dongwon Kim <dongwon.kim@intel.com>
Co-authored-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Co-authored-by: Stefan Weil via <qemu-devel@nongnu.org>
Co-authored-by: Gerd Hoffmann <kraxel@redhat.com>
Co-authored-by: Richard Henderson <richard.henderson@linaro.org>
Co-authored-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Co-authored-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Co-authored-by: Evgeny Ermakov <evgeny.v.ermakov@gmail.com>
Co-authored-by: Klaus Jensen <k.jensen@samsung.com>
Co-authored-by: Paolo Bonzini <pbonzini@redhat.com>
Co-authored-by: Song Gao <gaosong@loongson.cn>
In get_physical_address, the canonical address check failed to
set TranslateFault.stage2, which resulted in an uninitialized
read from the struct when reporting the fault in x86_cpu_tlb_fill.
Adjust all error paths to use structure assignment so that the
entire struct is always initialized.
Reported-by: Daniel Hoffman <dhoff749@gmail.com>
Fixes: 9bbcf372193a ("target/i386: Reorg GET_HPHYS")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221201074522.178498-1-richard.henderson@linaro.org>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1324
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
MMX state is saved/restored by FSAVE/FRSTOR so the instructions are
not illegal opcodes even if CR4.OSFXSR=0. Make sure that validate_vex
takes into account the prefix and only checks HF_OSFXSR_MASK in the
presence of an SSE instruction.
Fixes: 20581aadec5e ("target/i386: validate VEX prefixes via the instructions' exception classes", 2022-10-18)
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1350
Reported-by: Helge Konetzka (@hejko on gitlab.com)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When translating code that is using LAHF and SAHF in combination with the
REX prefix, the instructions should not use any other register than AH;
however, QEMU selects SPL (SP being register 4, just like AH) if the
REX prefix is present. To fix this, use deposit directly without
going through gen_op_mov_v_reg and gen_op_mov_reg_v.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/130
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Unlike the memory case, where "the destination operand receives a write
cycle without regard to the result of the comparison", rm must not be
touched altogether if the write fails, including not zero-extending
it on 64-bit processors. This is not how the movcond currently works,
because it is always followed by a gen_op_mov_reg_v to rm.
To fix it, introduce a new function that is similar to gen_op_mov_reg_v
but writes to a TCG temporary.
Considering that gen_extu(ot, oldv) is not needed in the memory case
either, the two cases for register and memory destinations are different
enough that one might as well fuse the two "if (mod == 3)" into one.
So do that too.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/508
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[rth: Add a test case ]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
If CR0.PG is unset, pg_mode will be zero, but it will also be zero
for non-PAE/non-PSE page tables with CR0.WP=0. Restore the
correct test for paging enabled.
Fixes: 98281984a37 ("target/i386: Add MMU_PHYS_IDX and MMU_NESTED_IDX")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1269
Reported-by: Andreas Gustafsson <gson@gson.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221102091232.1092552-1-richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The helpers for reset_rf, cli, sti, clac, stac are
completely trivial; implement them inline.
Drop some nearby #if 0 code.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The value passed is always true, and if the target's
synchronize_from_tb hook is non-trivial, not exiting
may be erroneous.
Reviewed-by: Claudio Fontana <cfontana@suse.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The only issue with FMA instructions is that there are _a lot_ of them (30
opcodes, each of which comes in up to 4 versions depending on VEX.W and
VEX.L; a total of 96 possibilities). However, they can be implement with
only 6 helpers, two for scalar operations and four for packed operations.
(Scalar versions do not do any merging; they only affect the bottom 32
or 64 bits of the output operand. Therefore, there is no separate XMM
and YMM of the scalar helpers).
First, we can reduce the number of helpers to one third by passing four
operands (one output and three inputs); the reordering of which operands
go to the multiply and which go to the add is done in emit.c.
Second, the different instructions also dispatch to the same softfloat
function, so the flags for float32_muladd and float64_muladd are passed
in the helper as int arguments, with a little extra complication to
handle FMADDSUB and FMSUBADD.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
F16C only consists of two instructions, which are a bit peculiar
nevertheless.
First, they access only the low half of an YMM or XMM register for the
packed-half operand; the exact size still depends on the VEX.L flag.
This is similar to the existing avx_movx flag, but not exactly because
avx_movx is hardcoded to affect operand 2. To this end I added a "ph"
format name; it's possible to reuse this approach for the VPMOVSX and
VPMOVZX instructions, though that would also require adding two more
formats for the low-quarter and low-eighth of an operand.
Second, VCVTPS2PH is somewhat weird because it *stores* the result of
the instruction into memory rather than loading it.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
VROUND, FSTCW and STMXCSR all have to perform the same conversion from
x86 rounding modes to softfloat constants. Since the ISA is consistent
on the meaning of the two-bit rounding modes, extract the common code
into a wrapper for set_float_rounding_mode.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
If the destination is a memory register, op->n is -1. Going through
tcg_gen_gvec_dup_imm path is both useless (the value has been stored
by the gen_* function already) and wrong because of the out-of-bounds
access.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
With all SSE (and AVX!) instructions now implemented in disas_insn_new,
it's possible to remove gen_sse, as well as the helpers for instructions
that now use gvec.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This adds another kind of weirdness when you thought you had seen it all:
an opcode byte that comes _after_ the address, not before. It's not
worth adding a new X86_SPECIAL_* constant for it, but it's actually
not unlike VCMP; so, forgive me for exploiting the similarity and just
deciding to dispatch to the right gen_helper_* call in a single code
generation function.
In fact, the old decoder had a bug where s->rip_offset should have
been set to 1 for 3DNow! instructions, and it's fixed now.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
These are exactly the same as the non-VEX version, but one has to be careful
that only VEX.L=0 is allowed.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Here the code is a bit uglier due to the truncation and extension
of registers to and from 32-bit. There is also a mistake in the
manual with respect to the size of the memory operand of CVTPS2PI
and CVTTPS2PI, reported by Ricky Zhou.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
These are mostly moves, and yet are a total pain. The main issue
is that:
1) some instructions are selected by mod==11 (register operand)
vs. mod=00/01/10 (memory operand)
2) stores to memory are two-operand operations, while the 3-register
and load-from-memory versions operate on the entire contents of the
destination; this makes it easier to separate the gen_* function for
the store case
3) it's inefficient to load into xmm_T0 only to move the value out
again, so the gen_* function for the load case is separated too
The manual also has various mistakes in the operands here, for example
the store case of MOVHPS operates on a 128-bit source (albeit discarding
the bottom 64 bits) and therefore should be Mq,Vdq rather than Mq,Vq.
Likewise for the destination and source of MOVHLPS.
VUNPCK?PS and VUNPCK?PD are the same as VUNPCK?DQ and VUNPCK?QDQ,
but encoded as prefixes rather than separate operands. The helpers
can be reused however.
For MOVSLDUP, MOVSHDUP and MOVDDUP I chose to reimplement them as
helpers. I named the helper for MOVDDUP "movdldup" in preparation
for possible future introduction of MOVDHDUP and to clarify the
similarity with MOVSLDUP.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Nothing special going on here, for once.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There are several special cases here:
1) extending moves have different widths for the helpers vs. for the
memory loads, and the width for memory loads depends on VEX.L too.
This is represented by X86_SPECIAL_AVXExtMov.
2) some instructions, such as variable-width shifts, select the vector element
size via REX.W.
3) VSIB instructions (VGATHERxPy, VPGATHERxy) are also part of this group,
and they have (among other things) two output operands.
3) the macros for 4-operand blends (which are under 0x0f 0x3a) have to be
extended to support 2-operand blends. The 2-operand variant actually
came a few years earlier, but it is clearer to implement them in the
opposite order.
X86_TYPE_WM, introduced earlier for unaligned loads, is reused for helpers
that accept a Reg* but have a M argument.
These three-byte opcodes also include AVX new instructions, for which
the helpers were originally implemented by Paul Brook <paul@nowt.org>.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
As pmovmskb is used by strlen et al, this is the third
highest overhead sse operation at %0.8.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
[Reorganize to generate code for any vector size. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The more complicated operations here are insertions and extractions.
Otherwise, there are just more entries than usual because the PS/PD/SS/SD
variations are encoded in the opcode rater than in the prefixes.
These three-byte opcodes also include AVX new instructions, whose
implementation in the helpers was originally done by Paul Brook
<paul@nowt.org>.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The more complicated ones here are d6-d7, e6-e7, f7. The others
are trivial.
For LDDQU, using gen_load_sse directly might corrupt the register if
the second part of the load fails. Therefore, add a custom X86_TYPE_WM
value; like X86_TYPE_W it does call gen_load(), but it also rejects a
value of 11 in the ModRM field like X86_TYPE_M.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This includes shifts by immediate, which use bits 3-5 of the ModRM byte
as an opcode extension. With the exception of 128-bit shifts, they are
implemented using gvec.
This also covers VZEROALL and VZEROUPPER, which use the same opcode
as EMMS. If we were wanting to optimize out gen_clear_ymmh then this
would be one of the starting points. The implementation of the VZEROALL
and VZEROUPPER helpers is by Paul Brook.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
These are a mixed batch, including the first two horizontal
(66 and F2 only) operations, more moves, and SSE4a extract/insert.
Because SSE4a is pretty rare, I chose to leave the helper as they are,
but it is possible to unify them by loading index and length from the
source XMM register and generating deposit or extract TCG ops.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
These are mostly floating-point SSE operations. The odd ones out
are MOVMSK and CVTxx2yy, the others are straightforward.
Unary operations are a bit special in AVX because they have 2 operands
for PD/PS operands (VEX.vvvv must be 1111b), and 3 operands for SD/SS.
They are handled using X86_OP_GROUP3 for compactness.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
These are more simple integer instructions present in both MMX and SSE/AVX,
with no holes that were later occupied by newer instructions.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
These are both MMX and SSE/AVX instructions, except for vmovdqu. In both
cases the inputs and output is in s->ptr{0,1,2}, so the only difference
between MMX, SSE, and AVX is which helper to call.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The new implementation of SSE will cover AVX from the get go, because
all the work for the helper functions is already done. We just need to
build them.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Compared to Paul's implementation, the new decoder will use a different approach
to implement AVX's merging of dst with src1 on scalar operations. Adjust the
old SSE decoder to be compatible with new-style helpers.
The affected instructions are CVTSx2Sx, ROUNDSx, RSQRTSx, SQRTSx, RCPSx.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add to the helpers all the operands that are needed to implement AVX.
Extracted from a patch by Paul Brook <paul@nowt.org>.
Message-Id: <20220424220204.2493824-26-paul@nowt.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Because these are the only VEX instructions that QEMU supports, the
new decoder is entered on the first byte of a valid VEX prefix, and VEX
decoding only needs to be done in decode-new.c.inc.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
