Add a test to prevent regressions.
Cc: qemu-stable@nongnu.org
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20230526181240.1425579-3-iii@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit 05d000fb4d)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
LCBB is supposed to overwrite only the bottom 32 bits, but QEMU
erroneously overwrites the entire register.
Fixes: 6d9303322e ("s390x/tcg: Implement LOAD COUNT TO BLOCK BOUNDARY")
Cc: qemu-stable@nongnu.org
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20230526181240.1425579-2-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>
(cherry picked from commit 079181b9bc)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Add a small test to prevent regressions.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230426235813.198183-3-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit bfa72590df)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(Mjt: forgotten testcase for commit b858c53ef6)
For M-profile, there is no guest-facing A-profile format FSR, but we
still use the env->exception.fsr field to pass fault information from
the point where a fault is raised to the code in
arm_v7m_cpu_do_interrupt() which interprets it and sets the M-profile
specific fault status registers. So it doesn't matter whether we
fill in env->exception.fsr in the short format or the LPAE format, as
long as both sides agree. As it happens arm_v7m_cpu_do_interrupt()
assumes short-form.
In compute_fsr_fsc() we weren't explicitly choosing short-form for
M-profile, but instead relied on it falling out in the wash because
arm_s1_regime_using_lpae_format() would be false. This was broken in
commit 452c67a4 when we added v8R support, because we said "PMSAv8 is
always LPAE format" (as it is for v8R), forgetting that we were
implicitly using this code path on M-profile. At that point we would
hit a g_assert_not_reached():
ERROR:../../target/arm/internals.h:549:arm_fi_to_lfsc: code should not be reached
#7 0x0000555555e055f7 in arm_fi_to_lfsc (fi=0x7fffecff9a90) at ../../target/arm/internals.h:549
#8 0x0000555555e05a27 in compute_fsr_fsc (env=0x555557356670, fi=0x7fffecff9a90, target_el=1, mmu_idx=1, ret_fsc=0x7fffecff9a1c)
at ../../target/arm/tlb_helper.c:95
#9 0x0000555555e05b62 in arm_deliver_fault (cpu=0x555557354800, addr=268961344, access_type=MMU_INST_FETCH, mmu_idx=1, fi=0x7fffecff9a90)
at ../../target/arm/tlb_helper.c:132
#10 0x0000555555e06095 in arm_cpu_tlb_fill (cs=0x555557354800, address=268961344, size=1, access_type=MMU_INST_FETCH, mmu_idx=1, probe=false, retaddr=0)
at ../../target/arm/tlb_helper.c:260
The specific assertion changed when commit fcc7404eff added
"assert not M-profile" to arm_is_secure_below_el3(), because the
conditions being checked in compute_fsr_fsc() include
arm_el_is_aa64(), which will end up calling arm_is_secure_below_el3()
and asserting before we try to call arm_fi_to_lfsc():
#7 0x0000555555efaf43 in arm_is_secure_below_el3 (env=0x5555574665a0) at ../../target/arm/cpu.h:2396
#8 0x0000555555efb103 in arm_is_el2_enabled (env=0x5555574665a0) at ../../target/arm/cpu.h:2448
#9 0x0000555555efb204 in arm_el_is_aa64 (env=0x5555574665a0, el=1) at ../../target/arm/cpu.h:2509
#10 0x0000555555efbdfd in compute_fsr_fsc (env=0x5555574665a0, fi=0x7fffecff99e0, target_el=1, mmu_idx=1, ret_fsc=0x7fffecff996c)
Avoid the assertion and the incorrect FSR format selection by
explicitly making M-profile use the short-format in this function.
Fixes: 452c67a427 ("target/arm: Enable TTBCR_EAE for ARMv8-R AArch32")a
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1658
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230523131726.866635-1-peter.maydell@linaro.org
(cherry picked from commit d7fe699be5)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
When passing --smp with a number lower than XLNX_ZYNQMP_NUM_APU_CPUS,
the expression (ms->smp.cpus - XLNX_ZYNQMP_NUM_APU_CPUS) will result
in a positive number as ms->smp.cpus is a unsigned int.
This will raise the following error afterwards, as Qemu will try to
instantiate some additional RPUs.
| $ qemu-system-aarch64 --smp 1 -M xlnx-zcu102
| **
| ERROR:../src/tcg/tcg.c:777:tcg_register_thread:
| assertion failed: (n < tcg_max_ctxs)
Signed-off-by: Clément Chigot <chigot@adacore.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Tested-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Message-id: 20230524143714.565792-1-chigot@adacore.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit c9ba1c9f02)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
When we receive a packet from the xilinx_axienet and then try to s2mem
through the xilinx_axidma, if the descriptor ring buffer is full in the
xilinx axidma driver, we’ll assert the DMASR.HALTED in the
function : stream_process_s2mem and return 0. In the end, we’ll be stuck in
an infinite loop in axienet_eth_rx_notify.
This patch checks the DMASR.HALTED state when we try to push data
from xilinx axi-enet to xilinx axi-dma. When the DMASR.HALTED is asserted,
we will not keep pushing the data and then prevent the infinte loop.
Signed-off-by: Tommy Wu <tommy.wu@sifive.com>
Reviewed-by: Edgar E. Iglesias <edgar@zeroasic.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20230519062137.1251741-1-tommy.wu@sifive.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit 31afe04586)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Windows sends an extra left control key up/down input event for
every right alt key up/down input event for keyboards with
international layout. Since commit 830473455f ("ui/sdl2: fix
handling of AltGr key on Windows") QEMU uses a Windows low level
keyboard hook procedure to reliably filter out the special left
control key and to grab the keyboard on Windows.
The SDL2 version 2.0.16 introduced its own Windows low level
keyboard hook procedure to grab the keyboard. Windows calls this
callback before the QEMU keyboard hook procedure. This disables
the special left control key filter when the keyboard is grabbed.
To fix the problem, disable the SDL2 Windows low level keyboard
hook procedure.
Reported-by: Bernhard Beschow <shentey@gmail.com>
Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Tested-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20230418062823.5683-1-vr_qemu@t-online.de>
(cherry picked from commit 1dfea3f212)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
SDL doesn't grab Alt+F4 under Windows by default. Pressing Alt+F4 thus closes
the VM immediately without confirmation, possibly leading to data loss. Fix
this by always grabbing Alt+F4 on Windows hosts, too.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Volker Rümelin <vr_qemu@t-online.de>
Message-Id: <20230417192139.43263-3-shentey@gmail.com>
(cherry picked from commit 083db9db44)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
By default, SDL grabs Alt+Tab only in non-fullscreen mode. This causes Alt+Tab
to switch tasks on the host rather than in the VM in fullscreen mode while it
switches tasks in non-fullscreen mode in the VM. Fix this confusing behavior
by grabbing Alt+Tab in fullscreen mode, always causing tasks to be switched in
the VM.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Volker Rümelin <vr_qemu@t-online.de>
Message-Id: <20230417192139.43263-2-shentey@gmail.com>
(cherry picked from commit efc00a3709)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
commit 4814d3cbf ("ui/dbus: restrict opengl to gbm-enabled config")
assumes that whenever GBM is available, OpenGL is. This is not always
the case, let's further restrict opengl-related paths and fix some
compilation issues.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20230515132348.1024663-1-marcandre.lureau@redhat.com>
(cherry picked from commit 0b31e48d62)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Before sdl2_gl_update() is called, sdl2_gl_switch() may decide to
destroy the console window and its associated shaders.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1644
Fixes: c84ab0a500 ("ui/console: optionally update after gfx switch")
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Bin Meng <bin.meng@windriver.com>
Message-Id: <20230511074217.4171842-1-marcandre.lureau@redhat.com>
(cherry picked from commit b3a654d82e)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
vc->gfx.w and vc->gfx.h are not updated appropriately in this code path,
which leads to a different scaling factor for rendering the cursor on
some edge cases (e.g. the focus has left and re-entered the gtk window).
This can be reproduced using vhost-user-gpu with the gtk ui on the x11
backend.
Use the surface dimensions which are already updated accordingly.
Signed-off-by: Erico Nunes <ernunes@redhat.com>
Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20230320160856.364319-2-ernunes@redhat.com>
(cherry picked from commit f8a951bb95)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The gd_motion_event size has some calculations for the cursor position,
which also take into account things like different size of the
framebuffer compared to the window size.
The use of window size makes things more difficult though, as at least
in the case of Wayland includes the size of ui elements like a menu bar
at the top of the window. This leads to a wrong position calculation by
a few pixels.
Fix it by using the size of the widget, which already returns the size
of the actual space to render the framebuffer.
Signed-off-by: Erico Nunes <ernunes@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
Message-Id: <20230320160856.364319-1-ernunes@redhat.com>
(cherry picked from commit 2f31663ed4)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The dmabuf->y0_top flag is passed to .dpy_gl_scanout_dmabuf(), however
in the gtk ui both implementations dropped it when doing the next
scanout_texture call.
Fixes flipped linux console using vhost-user-gpu with the gtk ui
display.
Signed-off-by: Erico Nunes <ernunes@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20230220175605.43759-1-ernunes@redhat.com>
(cherry picked from commit 94400fa53f)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Commit cef2e7148e ("hw/isa/i82378: Remove intermediate IRQ forwarder")
passes s->cpu_intr to i8259_init() in i82378_realize() directly. However, s-
>cpu_intr isn't initialized yet since that happens after the south bridge's
pci_realize_and_unref() in board code. Fix this by initializing s->cpu_intr
before realizing the south bridge.
Fixes: cef2e7148e ("hw/isa/i82378: Remove intermediate IRQ forwarder")
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20230304114043.121024-4-shentey@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
(cherry picked from commit 2237af5e60)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The following commits changed the code such that the fallback to MFSS for MFFSCRN,
MFFSCRNI, MFFSCE and MFFSL on pre 3.0 ISAs was removed and became an illegal instruction:
bf8adfd88b - target/ppc: Move mffscrn[i] to decodetree
394c2e2fda - target/ppc: Move mffsce to decodetree
3e5bce70ef - target/ppc: Move mffsl to decodetree
The hardware will handle them as a MFFS instruction as the code did previously.
This means applications that were segfaulting under qemu when encountering these
instructions which is used in glibc libm functions for example.
The fallback for MFFSCDRN and MFFSCDRNI added in a later patch was also missing.
This patch restores the fallback to MFSS for these instructions on pre 3.0s ISAs
as the hardware decoder would, fixing the segfaulting libm code. It doesn't have
the fallback for 3.0 onwards to match hardware behaviour.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Reviewed-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230510111913.1718734-1-richard.purdie@linuxfoundation.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
(cherry picked from commit 5260ecffd2)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
We're currently facing the problem that the device-crash-test script
runs twice as long in the CI when a runner supports KVM - which sometimes
results in a timeout of the CI job. To get a more deterministic runtime
here, add an option to the script that allows to run it with TCG only.
Reported-by: Eldon Stegall <eldon-qemu@eldondev.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230414145845.456145-3-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230424092249.58552-6-alex.bennee@linaro.org>
(cherry picked from commit 8b869aa591)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
After "make check-venv" had been added to these jobs, they started
to re-run "configure" each time since our logic in the makefile
thinks that some files are out of date here. Avoid it with the same
trick that we are using in buildtest-template.yml already by disabling
the up-to-date check via NINJA=":".
Fixes: 1d8cf47e5b ("tests: run 'device-crash-test' from tests/venv")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230414145845.456145-2-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230424092249.58552-5-alex.bennee@linaro.org>
(cherry picked from commit 4d3bd91b26)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
There are some error paths in blk_exp_add() that jump to 'fail:' before
'exp' is even created. So we can't just unconditionally access exp->blk.
Add a NULL check, and switch from exp->blk to blk, which is available
earlier, just to be extra sure that we really cover all cases where
BlockDevOps could have been set for it (in practice, this only happens
in drv->create() today, so this part of the change isn't strictly
necessary).
Fixes: Coverity CID 1509238
Fixes: de79b52604
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230510203601.418015-3-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit a184563778)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The VirtioInfoList is already allocated by QAPI_LIST_PREPEND and
need not be allocated by the caller.
Fixes Coverity CID 1508724.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 0bfd14149b)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
QEMU aborts when default RAM backend should be used (i.e. no
explicit '-machine memory-backend=' specified) but user
has created an object which 'id' equals to default RAM backend
name used by board.
$QEMU -machine pc \
-object memory-backend-ram,id=pc.ram,size=4294967296
Actual results:
QEMU 7.2.0 monitor - type 'help' for more information
(qemu) Unexpected error in object_property_try_add() at ../qom/object.c:1239:
qemu-kvm: attempt to add duplicate property 'pc.ram' to object (type 'container')
Aborted (core dumped)
Instead of abort, check for the conflicting 'id' and exit with
an error, suggesting how to remedy the issue.
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2207886
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20230522131717.3780533-1-imammedo@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Shaoqin Huang <shahuang@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit a37531f238)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
We cannot use the generic reentrancy guard in the LSI code, so
we have to manually prevent endless reentrancy here. The problematic
lsi_execute_script() function has already a way to detect whether
too many instructions have been executed - we just have to slightly
change the logic here that it also takes into account if the function
has been called too often in a reentrant way.
The code in fuzz-lsi53c895a-test.c has been taken from an earlier
patch by Mauro Matteo Cascella.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1563
Message-Id: <20230522091011.1082574-1-thuth@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit b987718bbb)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
When the OHCI controller's framenumber is incremented, HccaPad1 register
should be set to zero (Ref OHCI Spec 4.4)
ReactOS uses hccaPad1 to determine if the OHCI hardware is running,
consequently it fails this check in current qemu master.
Signed-off-by: Ryan Wendland <wendland@live.com.au>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1048
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 6301460ce9)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
When _FORTIFY_SOURCE=2, glibc version is 2.35, and GCC version is
12.1.0, the compiler complains as follows:
In file included from /usr/include/features.h:490,
from /usr/include/bits/libc-header-start.h:33,
from /usr/include/stdint.h:26,
from /usr/lib/gcc/aarch64-unknown-linux-gnu/12.1.0/include/stdint.h:9,
from /home/alarm/q/var/qemu/include/qemu/osdep.h:94,
from ../util/vfio-helpers.c:13:
In function 'readlink',
inlined from 'sysfs_find_group_file' at ../util/vfio-helpers.c:116:9,
inlined from 'qemu_vfio_init_pci' at ../util/vfio-helpers.c:326:18,
inlined from 'qemu_vfio_open_pci' at ../util/vfio-helpers.c:517:9:
/usr/include/bits/unistd.h:119:10: error: argument 2 is null but the corresponding size argument 3 value is 4095 [-Werror=nonnull]
119 | return __glibc_fortify (readlink, __len, sizeof (char),
| ^~~~~~~~~~~~~~~
This error implies the allocated buffer can be NULL. Use
g_file_read_link(), which allocates buffer automatically to avoid the
error.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
(cherry picked from commit dbdea0dbfe)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
igb_receive_internal() used to check the iov length to determine
copy the iovs to a contiguous buffer, but the check is flawed in two
ways:
- It does not ensure that iovcnt > 0.
- It does not take virtio-net header into consideration.
The size of this copy is just 22 octets, which can be even less than
the code size required for checks. This (wrong) optimization is probably
not worth so just remove it. Removing this also allows igb to assume
aligned accesses for the ethernet header.
Fixes: 3a977deebe ("Intrdocue igb device emulation")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
(cherry picked from commit dc9ef1bf45)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
e1000e_receive_internal() used to check the iov length to determine
copy the iovs to a contiguous buffer, but the check is flawed in two
ways:
- It does not ensure that iovcnt > 0.
- It does not take virtio-net header into consideration.
The size of this copy is just 18 octets, which can be even less than
the code size required for checks. This (wrong) optimization is probably
not worth so just remove it.
Fixes: 6f3fbe4ed0 ("net: Introduce e1000e device emulation")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
(cherry picked from commit 310a128eae)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
igb does not properly ensure the buffer passed to
net_rx_pkt_set_protocols() is contiguous for the entire L2/L3/L4 header.
Allow it to pass scattered data to net_rx_pkt_set_protocols().
Fixes: 3a977deebe ("Intrdocue igb device emulation")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
(cherry picked from commit 2f0fa232b8)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The datasheet says contradicting statements regarding ICR accesses so it
is not reliable to determine the behavior of ICR accesses. However,
e1000e does clear IMS bits when reading ICR accesses and Linux also
expects ICR accesses will clear IMS bits according to:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/net/ethernet/intel/igb/igb_main.c?h=v6.2#n8048
Fixes: 3a977deebe ("Intrdocue igb device emulation")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
(cherry picked from commit f0b1df5c45)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
While the datasheet of e1000e says it checks CTRL.VME for tx VLAN
tagging, igb's datasheet has no such statements. It also says for
"CTRL.VLE":
> This register only affects the VLAN Strip in Rx it does not have any
> influence in the Tx path in the 82576.
(Appendix A. Changes from the 82575)
There is no "CTRL.VLE" so it is more likely that it is a mistake of
CTRL.VME.
Fixes: fba7c3b788 ("igb: respect VMVIR and VMOLR for VLAN")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
(cherry picked from commit e209716749)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
igb's advanced descriptor uses a packet type encoding different from
one used in e1000e's extended descriptor. Fix the logic to encode
Rx packet type accordingly.
Fixes: 3a977deebe ("Intrdocue igb device emulation")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
(cherry picked from commit ed447c60b3)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Before this change, e1000 and the common code updated BPRC and MPRC
depending on the matched filter, but e1000e and igb decided to update
those counters by deriving the packet type independently. This
inconsistency caused a multicast packet to be counted twice.
Updating BPRC and MPRC depending on are fundamentally flawed anyway as
a filter can be used for different types of packets. For example, it is
possible to filter broadcast packets with MTA.
Always determine what counters to update by inspecting the packets.
Fixes: 3b27430177 ("e1000: Implementing various counters")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
(cherry picked from commit f3f9b726af)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The bytes and packets counter registers are cleared on read.
Copying the "total counter" registers to the "good counter" registers has
side effects.
If the "total" register is never read by the OS, it only gets incremented.
This leads to exponential growth of the "good" register.
This commit increments the counters individually to avoid this.
Signed-off-by: Timothée Cocault <timothee.cocault@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
(cherry picked from commit 8d689f6aae)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
nbd_drained_poll() generally runs in the main thread, not whatever
iothread the NBD server coroutine is meant to run in, so it can't
directly reenter the coroutines to wake them up.
The code seems to have the right intention, it specifies the correct
AioContext when it calls qemu_aio_coroutine_enter(). However, this
functions doesn't schedule the coroutine to run in that AioContext, but
it assumes it is already called in the home thread of the AioContext.
To fix this, add a new thread-safe qio_channel_wake_read() that can be
called in the main thread to wake up the coroutine in its AioContext,
and use this in nbd_drained_poll().
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230517152834.277483-3-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 7c1f51bf38)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
In QEMU 8.0, we've been seeing deadlocks in bdrv_graph_wrlock(). They
come from callers that hold an AioContext lock, which is not allowed
during polling. In theory, we could temporarily release the lock, but
callers are inconsistent about whether they hold a lock, and if they do,
some are also confused about which one they hold. While all of this is
fixable, it's not trivial, and the best course of action for 8.0.1 is
probably just disabling the graph locking code temporarily.
We don't currently rely on graph locking yet. It is supposed to replace
the AioContext lock eventually to enable multiqueue support, but as long
as we still have the AioContext lock, it is sufficient without the graph
lock. Once the AioContext lock goes away, the deadlock doesn't exist any
more either and this commit can be reverted. (Of course, it can also be
reverted while the AioContext lock still exists if the callers have been
fixed.)
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230517152834.277483-2-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 80fc5d2600)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
reader_count() is a performance bottleneck because the global
aio_context_list_lock mutex causes thread contention. Put this debugging
assertion behind a new ./configure --enable-debug-graph-lock option and
disable it by default.
The --enable-debug-graph-lock option is also enabled by the more general
--enable-debug option.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230501173443.153062-1-stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 58a2e3f5c3)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(Mjt: pick this one up so the next patch which disables this applies cleanly)
Cc: qemu-stable@nongnu.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230502184134.534703-3-stefanha@redhat.com>
[kwolf: Restrict to CONFIG_POSIX, Windows doesn't support polling]
Tested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 844a12a63e)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
QEMU's event loop supports nesting, which means that event handler
functions may themselves call aio_poll(). The condition that triggered a
handler must be reset before the nested aio_poll() call, otherwise the
same handler will be called and immediately re-enter aio_poll. This
leads to an infinite loop and stack exhaustion.
Poll handlers are especially prone to this issue, because they typically
reset their condition by finishing the processing of pending work.
Unfortunately it is during the processing of pending work that nested
aio_poll() calls typically occur and the condition has not yet been
reset.
Disable a poll handler during ->io_poll_ready() so that a nested
aio_poll() call cannot invoke ->io_poll_ready() again. As a result, the
disabled poll handler and its associated fd handler do not run during
the nested aio_poll(). Calling aio_set_fd_handler() from inside nested
aio_poll() could cause it to run again. If the fd handler is pending
inside nested aio_poll(), then it will also run again.
In theory fd handlers can be affected by the same issue, but they are
more likely to reset the condition before calling nested aio_poll().
This is a special case and it's somewhat complex, but I don't see a way
around it as long as nested aio_poll() is supported.
Cc: qemu-stable@nongnu.org
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2186181
Fixes: c382706925 ("block: Mark bdrv_co_io_(un)plug() and callers GRAPH_RDLOCK")
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230502184134.534703-2-stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 6d740fb01b)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Ensure op_info is not NULL in case of QCRYPTODEV_BACKEND_ALG_SYM algtype.
Fixes: 0e660a6f90 ("crypto: Introduce RSA algorithm")
Signed-off-by: Mauro Matteo Cascella <mcascell@redhat.com>
Reported-by: Yiming Tao <taoym@zju.edu.cn>
Message-Id: <20230509075317.1132301-1-mcascell@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: zhenwei pi<pizhenwei@bytedance.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 3e69908907)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The commit 93a97dc520 ("virtio-net: enable vq reset feature") enables
unconditionally vq reset feature as long as the device is emulated.
This makes impossible to actually disable the feature, and it causes
migration problems from qemu version previous than 7.2.
The entire final commit is unneeded as device system already enable or
disable the feature properly.
This reverts commit 93a97dc520.
Fixes: 93a97dc520 ("virtio-net: enable vq reset feature")
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20230504101447.389398-1-eperezma@redhat.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 1fac00f70b)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Since it's implementation on v8.0.0-rc0, having the PCI_ERR_UNCOR_MASK
set for machine types < 8.0 will cause migration to fail if the target
QEMU version is < 8.0.0 :
qemu-system-x86_64: get_pci_config_device: Bad config data: i=0x10a read: 40 device: 0 cmask: ff wmask: 0 w1cmask:0
qemu-system-x86_64: Failed to load PCIDevice:config
qemu-system-x86_64: Failed to load e1000e:parent_obj
qemu-system-x86_64: error while loading state for instance 0x0 of device '0000:00:02.0/e1000e'
qemu-system-x86_64: load of migration failed: Invalid argument
The above test migrated a 7.2 machine type from QEMU master to QEMU 7.2.0,
with this cmdline:
./qemu-system-x86_64 -M pc-q35-7.2 [-incoming XXX]
In order to fix this, property x-pcie-err-unc-mask was introduced to
control when PCI_ERR_UNCOR_MASK is enabled. This property is enabled by
default, but is disabled if machine type <= 7.2.
Fixes: 010746ae1d ("hw/pci/aer: Implement PCI_ERR_UNCOR_MASK register")
Suggested-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Leonardo Bras <leobras@redhat.com>
Message-Id: <20230503002701.854329-1-leobras@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Fixes: https://gitlab.com/qemu-project/qemu/-/issues/1576
Tested-by: Fiona Ebner <f.ebner@proxmox.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 5ed3dabe57)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
QEMU invokes vhost_svq_add() when adding a guest's element
into SVQ. In vhost_svq_add(), it uses vhost_svq_available_slots()
to check whether QEMU can add the element into SVQ. If there is
enough space, then QEMU combines some out descriptors and some
in descriptors into one descriptor chain, and adds it into
`svq->vring.desc` by vhost_svq_vring_write_descs().
Yet the problem is that, `svq->shadow_avail_idx - svq->shadow_used_idx`
in vhost_svq_available_slots() returns the number of occupied elements,
or the number of descriptor chains, instead of the number of occupied
descriptors, which may cause wrapping in SVQ descriptor ring.
Here is an example. In vhost_handle_guest_kick(), QEMU forwards
as many available buffers to device by virtqueue_pop() and
vhost_svq_add_element(). virtqueue_pop() returns a guest's element,
and then this element is added into SVQ by vhost_svq_add_element(),
a wrapper to vhost_svq_add(). If QEMU invokes virtqueue_pop() and
vhost_svq_add_element() `svq->vring.num` times,
vhost_svq_available_slots() thinks QEMU just ran out of slots and
everything should work fine. But in fact, virtqueue_pop() returns
`svq->vring.num` elements or descriptor chains, more than
`svq->vring.num` descriptors due to guest memory fragmentation,
and this causes wrapping in SVQ descriptor ring.
This bug is valid even before marking the descriptors used.
If the guest memory is fragmented, SVQ must add chains
so it can try to add more descriptors than possible.
This patch solves it by adding `num_free` field in
VhostShadowVirtqueue structure and updating this field
in vhost_svq_add() and vhost_svq_get_buf(), to record
the number of free descriptors.
Fixes: 100890f7ca ("vhost: Shadow virtqueue buffers forwarding")
Signed-off-by: Hawkins Jiawei <yin31149@gmail.com>
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20230509084817.3973-1-yin31149@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Lei Yang <leiyang@redhat.com>
(cherry picked from commit 5d410557de)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
vzeroall: xmm_regs should be used instead of xmm_t0
vpermdq: bit 3 and 7 of imm should be considered
Signed-off-by: Xinyu Li <lixinyu20s@ict.ac.cn>
Message-Id: <20230510145222.586487-1-lixinyu20s@ict.ac.cn>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 056d649007)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Compared to other SSE instructions, VUCOMISx and VCOMISx are different:
the single and double precision versions are distinguished through a
prefix, however they use no-prefix and 0x66 for SS and SD respectively.
Scalar values usually are associated with 0xF2 and 0xF3.
Because of these, they incorrectly perform a 128-bit memory load instead
of a 32- or 64-bit load. Fix this by writing a custom decoding function.
I tested that the reproducer is fixed and the test-avx output does not
change.
Reported-by: Gabriele Svelto <gsvelto@mozilla.com>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1637
Fixes: f8d19eec0d ("target/i386: reimplement 0x0f 0x28-0x2f, add AVX", 2022-10-18)
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 2b55e479e6)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Using linux 6.x guest, at boot time, an inquiry on a scsi-generic
device makes qemu crash. This is caused by a buffer overflow when
scsi-generic patches the block limits VPD page.
Do the operations on a temporary on-stack buffer that is guaranteed
to be large enough.
Reported-by: Théo Maillart <tmaillart@freebox.fr>
Analyzed-by: Théo Maillart <tmaillart@freebox.fr>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 9bd634b2f5)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Commit fe904ea824 added a fail_inactivate label, which tries to
reactivate disks on the source after a failure while s->state ==
MIGRATION_STATUS_ACTIVE, but didn't actually use the label if
qemu_savevm_state_complete_precopy() failed. This failure to
reactivate is also present in commit 6039dd5b1c (also covering the new
s->state == MIGRATION_STATUS_DEVICE state) and 403d18ae (ensuring
s->block_inactive is set more reliably).
Consolidate the two labels back into one - no matter HOW migration is
failed, if there is any chance we can reach vm_start() after having
attempted inactivation, it is essential that we have tried to restart
disks before then. This also makes the cleanup more like
migrate_fd_cancel().
Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20230502205212.134680-1-eblake@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 6dab4c93ec)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(Mjt: minor context tweak near added comment in migration/migration.c)
