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https://xenbits.xen.org/git-http/people/aperard/qemu-dm into staging
Xen queue:
* In Xen PCI passthrough, emulate multifunction bit.
* Fix in Xen mapcache.
* Improve performance of kernel+initrd loading in an Xen HVM Direct
Kernel Boot scenario.
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# gpg: Signature made Tue 12 Mar 2024 14:25:00 GMT
# gpg: using RSA key F80C006308E22CFD8A92E7980CF5572FD7FB55AF
# gpg: Good signature from "Anthony PERARD <anthony.perard@gmail.com>" [marginal]
# gpg: aka "Anthony PERARD <anthony.perard@citrix.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 5379 2F71 024C 600F 778A 7161 D8D5 7199 DF83 42C8
# Subkey fingerprint: F80C 0063 08E2 2CFD 8A92 E798 0CF5 572F D7FB 55AF
* tag 'pull-xen-20240312' of https://xenbits.xen.org/git-http/people/aperard/qemu-dm:
i386: load kernel on xen using DMA
xen: Drop out of coroutine context xen_invalidate_map_cache_entry
xen/pt: Emulate multifunction bit in header type
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Kernel on Xen is loaded via fw_cfg. Previously it used non-DMA version,
which loaded the kernel (and initramfs) byte by byte. Change this
to DMA, to load in bigger chunks.
This change alone reduces load time of a (big) kernel+initramfs from
~10s down to below 1s.
This change was suggested initially here:
https://lore.kernel.org/xen-devel/20180216204031.000052e9@gmail.com/
Apparently this alone is already enough to get massive speedup.
Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20210426034709.595432-1-marmarek@invisiblethingslab.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
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xen_invalidate_map_cache_entry is not expected to run in a
coroutine. Without this, there is crash:
signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
threadid=<optimized out>) at pthread_kill.c:78
at /usr/src/debug/glibc/2.38+git-r0/sysdeps/posix/raise.c:26
fmt=0xffff9e1ca8a8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n",
assertion=assertion@entry=0xaaaae0d25740 "!qemu_in_coroutine()",
file=file@entry=0xaaaae0d301a8 "../qemu-xen-dir-remote/block/graph-lock.c", line=line@entry=260,
function=function@entry=0xaaaae0e522c0 <__PRETTY_FUNCTION__.3> "bdrv_graph_rdlock_main_loop") at assert.c:92
assertion=assertion@entry=0xaaaae0d25740 "!qemu_in_coroutine()",
file=file@entry=0xaaaae0d301a8 "../qemu-xen-dir-remote/block/graph-lock.c", line=line@entry=260,
function=function@entry=0xaaaae0e522c0 <__PRETTY_FUNCTION__.3> "bdrv_graph_rdlock_main_loop") at assert.c:101
at ../qemu-xen-dir-remote/block/graph-lock.c:260
at /home/Freenix/work/sw-stash/xen/upstream/tools/qemu-xen-dir-remote/include/block/graph-lock.h:259
host=host@entry=0xffff742c8000, size=size@entry=2097152)
at ../qemu-xen-dir-remote/block/io.c:3362
host=0xffff742c8000, size=2097152)
at ../qemu-xen-dir-remote/block/block-backend.c:2859
host=<optimized out>, size=<optimized out>, max_size=<optimized out>)
at ../qemu-xen-dir-remote/block/block-ram-registrar.c:33
size=2097152, max_size=2097152)
at ../qemu-xen-dir-remote/hw/core/numa.c:883
buffer=buffer@entry=0xffff743c5000 "")
at ../qemu-xen-dir-remote/hw/xen/xen-mapcache.c:475
buffer=buffer@entry=0xffff743c5000 "")
at ../qemu-xen-dir-remote/hw/xen/xen-mapcache.c:487
as=as@entry=0xaaaae1ca3ae8 <address_space_memory>, buffer=0xffff743c5000,
len=<optimized out>, is_write=is_write@entry=true,
access_len=access_len@entry=32768)
at ../qemu-xen-dir-remote/system/physmem.c:3199
dir=DMA_DIRECTION_FROM_DEVICE, len=<optimized out>,
buffer=<optimized out>, as=0xaaaae1ca3ae8 <address_space_memory>)
at /home/Freenix/work/sw-stash/xen/upstream/tools/qemu-xen-dir-remote/include/sysemu/dma.h:236
elem=elem@entry=0xaaaaf620aa30, len=len@entry=32769)
at ../qemu-xen-dir-remote/hw/virtio/virtio.c:758
elem=elem@entry=0xaaaaf620aa30, len=len@entry=32769, idx=idx@entry=0)
at ../qemu-xen-dir-remote/hw/virtio/virtio.c:919
elem=elem@entry=0xaaaaf620aa30, len=32769)
at ../qemu-xen-dir-remote/hw/virtio/virtio.c:994
req=req@entry=0xaaaaf620aa30, status=status@entry=0 '\000')
at ../qemu-xen-dir-remote/hw/block/virtio-blk.c:67
ret=0) at ../qemu-xen-dir-remote/hw/block/virtio-blk.c:136
at ../qemu-xen-dir-remote/block/block-backend.c:1559
--Type <RET> for more, q to quit, c to continue without paging--
at ../qemu-xen-dir-remote/block/block-backend.c:1614
i1=<optimized out>) at ../qemu-xen-dir-remote/util/coroutine-ucontext.c:177
at ../sysdeps/unix/sysv/linux/aarch64/setcontext.S:123
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Message-Id: <20240124021450.21656-1-peng.fan@oss.nxp.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
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The intention of the code appears to have been to unconditionally set
the multifunction bit but since the emulation mask is 0x00 it has no
effect. Instead, emulate the bit and set it based on the multifunction
property of the PCIDevice (which can be set using QAPI).
This allows making passthrough devices appear as functions in a Xen
guest.
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Message-Id: <20231103172601.1319375-1-ross.lagerwall@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
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staging
display/ui: pending fixes
- ui/vnc: Respect bound console
- ui/dbus: optimize a bit message queuing
- virtio-gpu: fix blob scanout post-load
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# gpg: Signature made Tue 12 Mar 2024 14:01:10 GMT
# gpg: using RSA key 87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg: issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [full]
# gpg: aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [full]
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276 F62D DAE8 E109 7596 9CE5
* tag 'ui-pull-request' of https://gitlab.com/marcandre.lureau/qemu:
virtio-gpu: fix scanout migration post-load
virtio-gpu: remove needless condition
ui/dbus: filter out pending messages when scanout
ui/dbus: factor out sending a scanout
ui/vnc: Respect bound console
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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The current post-loading code for scanout has a FIXME: it doesn't take
the resource region/rect into account. But there is more, when adding
blob migration support in commit f66767f75c9, I didn't realize that blob
resources could be used for scanouts. This situationn leads to a crash
during post-load, as they don't have an associated res->image.
virtio_gpu_do_set_scanout() handle all cases, but requires the
associated virtio_gpu_framebuffer, which is currently not saved during
migration.
Add a v2 of "virtio-gpu-one-scanout" with the framebuffer fields, so we
can restore blob scanouts, as well as fixing the existing FIXME.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Sebastian Ott <sebott@redhat.com>
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qemu_create_displaysurface_pixman() never returns NULL.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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The "Listener" connection, being private and under the control of the
qemu display, allows for the optimization of discarding pending
intermediary messages when queuing a new scanout. This ensures that the
client receives only the latest scanout update, improving communication
efficiency.
While the current implementation does not provide a mechanism for
clients who may wish to receive all updates, making this behavior
optional could be considered in the future. For now, adopting this new
default behavior accelerates the communication process without a
guarantee of delivering all updates.
The filter is removed when the connection is dropped.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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ui/vnc may have a bound console so pass it to qemu_console_is_graphic()
and qemu_text_console_put_keysym().
Fixes: 1d0d59fe2919 ("vnc: allow binding servers to qemu consoles")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20231211-vnc-v1-1-a3551d284809@daynix.com>
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Error reporting patches for 2024-03-12
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# gpg: Signature made Tue 12 Mar 2024 13:30:14 GMT
# gpg: using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg: issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653
* tag 'pull-error-2024-03-12' of https://repo.or.cz/qemu/armbru:
target/loongarch: Fix query-cpu-model-expansion to reject props
target: Improve error reporting for CpuModelInfo member @props
target/i386: Fix query-cpu-model-expansion to reject props
target: Simplify type checks for CpuModelInfo member @props
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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query-cpu-model-expansion takes a CpuModelInfo argument. The
loongarch version of the command silently ignores the argument's
member @props. For instance,
{"execute": "query-cpu-model-expansion", "arguments": {"type": "static", "model": {"name": "la464", "props": null}}}
and
{"execute": "query-cpu-model-expansion", "arguments": {"type": "static", "model": {"name": "la464", "props": {"prop": null}}}}
succeed.
Add skeleton code for property processing that recognizes no
properties. Now the two commands fail as they should:
{"error": {"class": "GenericError", "desc": "Invalid parameter type for 'model.props', expected: object"}}
and
{"error": {"class": "GenericError", "desc": "Parameter 'model.props.prop' is unexpected"}}
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240305145919.2186971-5-armbru@redhat.com>
[Drop #include now superfluous]
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query-cpu-model-comparison, query-cpu-model-baseline, and
query-cpu-model-expansion take CpuModelInfo arguments. Errors in
@props members of these arguments are reported for 'props', without
further context. For instance, s390x rejects
{"execute": "query-cpu-model-comparison", "arguments": {"modela": {"name": "z13", "props": {}}, "modelb": {"name": "z14", "props": []}}}
with
{"error": {"class": "GenericError", "desc": "Invalid parameter type for 'props', expected: object"}}
This is unusual; the common QAPI unmarshaling machinery would complain
about 'modelb.props'. Our hand-written code to visit the @props
member neglects to provide the context.
Tweak it so it provides it. The command above now fails with
{"error": {"class": "GenericError", "desc": "Invalid parameter type for 'modelb.props', expected: dict"}}
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240305145919.2186971-4-armbru@redhat.com>
Acked-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
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CpuModelInfo member @props is semantically a mapping from name to
value, and syntactically a JSON object on the wire. This translates
to QDict in C. Since the QAPI schema language lacks the means to
express 'object', we use 'any' instead. This is QObject in C.
Commands taking a CpuModelInfo argument need to check the QObject is a
QDict.
The i386 version of qmp_query_cpu_model_expansion() fails to check.
Instead, @props is silently ignored when it's not an object. For
instance,
{"execute": "query-cpu-model-expansion", "arguments": {"type": "full", "model": {"name": "qemu64", "props": null}}}
succeeds.
Fix by refactoring the code to match the other targets. Now the
command fails as it should:
{"error": {"class": "GenericError", "desc": "Invalid parameter type for 'props', expected: object"}}
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240305145919.2186971-3-armbru@redhat.com>
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CpuModelInfo member @props is semantically a mapping from name to
value, and syntactically a JSON object on the wire. This translates
to QDict in C. Since the QAPI schema language lacks the means to
express 'object', we use 'any' instead. This is QObject in C.
Commands taking a CpuModelInfo argument need to check the QObject is a
QDict.
For arm, riscv, and s390x, the code checks right before passing the
QObject to visit_start_struct(). visit_start_struct() then checks
again.
Delete the first check.
The error message for @props that are not an object changes slightly
to the the message we get for this kind of type error in other
contexts. Minor improvement.
Additionally, error messages about members of @props now refer to
'props.prop-name' instead of just 'prop-name'. Another minor
improvement.
Both changes are visible in tests/qtest/arm-cpu-features.c.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240305145919.2186971-2-armbru@redhat.com>
Acked-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
[Drop #include now superfluous]
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staging
* Add missing ERRP_GUARD() statements in functions that need it
* Prefer fast cpu_env() over slower CPU QOM cast macro
# -----BEGIN PGP SIGNATURE-----
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# tdFhV0iRr08=
# =NiP4
# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 12 Mar 2024 11:35:50 GMT
# gpg: using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg: issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg: aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5
* tag 'pull-request-2024-03-12' of https://gitlab.com/thuth/qemu: (55 commits)
user: Prefer fast cpu_env() over slower CPU QOM cast macro
target/xtensa: Prefer fast cpu_env() over slower CPU QOM cast macro
target/tricore: Prefer fast cpu_env() over slower CPU QOM cast macro
target/sparc: Prefer fast cpu_env() over slower CPU QOM cast macro
target/sh4: Prefer fast cpu_env() over slower CPU QOM cast macro
target/rx: Prefer fast cpu_env() over slower CPU QOM cast macro
target/ppc: Prefer fast cpu_env() over slower CPU QOM cast macro
target/openrisc: Prefer fast cpu_env() over slower CPU QOM cast macro
target/nios2: Prefer fast cpu_env() over slower CPU QOM cast macro
target/mips: Prefer fast cpu_env() over slower CPU QOM cast macro
target/microblaze: Prefer fast cpu_env() over slower CPU QOM cast macro
target/m68k: Prefer fast cpu_env() over slower CPU QOM cast macro
target/loongarch: Prefer fast cpu_env() over slower CPU QOM cast macro
target/i386/hvf: Use CPUState typedef
target/hexagon: Prefer fast cpu_env() over slower CPU QOM cast macro
target/cris: Prefer fast cpu_env() over slower CPU QOM cast macro
target/avr: Prefer fast cpu_env() over slower CPU QOM cast macro
target/alpha: Prefer fast cpu_env() over slower CPU QOM cast macro
target: Replace CPU_GET_CLASS(cpu -> obj) in cpu_reset_hold() handler
bulk: Call in place single use cpu_env()
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-ID: <20240129164514.73104-30-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129164514.73104-29-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-ID: <20240129164514.73104-28-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129164514.73104-27-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129164514.73104-26-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240129164514.73104-24-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129164514.73104-22-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129164514.73104-21-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129164514.73104-20-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240129164514.73104-19-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129164514.73104-18-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129164514.73104-17-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129164514.73104-16-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[thuth: Adjusted patch for hunk that moved to cpu_helper.c]
Signed-off-by: Thomas Huth <thuth@redhat.com>
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QEMU coding style recommend using structure typedefs:
https://www.qemu.org/docs/master/devel/style.html#typedefs
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-ID: <20240129164514.73104-14-philmd@linaro.org>
[thuth: Break long lines to avoid checkpatch.pl errors]
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240129164514.73104-12-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129164514.73104-11-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129164514.73104-10-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129164514.73104-8-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Since CPU() macro is a simple cast, the following are equivalent:
Object *obj;
CPUState *cs = CPU(obj)
In order to ease static analysis when running
scripts/coccinelle/cpu_env.cocci from the previous commit,
replace:
- CPU_GET_CLASS(cpu);
+ CPU_GET_CLASS(obj);
Most code use the 'cs' variable name for CPUState handle.
Replace few 's' -> 'cs' to unify cpu_reset_hold() style.
No logical change in this patch.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240129164514.73104-7-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Avoid CPUArchState local variable when cpu_env() is used once.
Mechanical patch using the following Coccinelle spatch script:
@@
type CPUArchState;
identifier env;
expression cs;
@@
{
- CPUArchState *env = cpu_env(cs);
... when != env
- env
+ cpu_env(cs)
... when != env
}
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240129164514.73104-5-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Do not accept any Object for CPUArchId::cpu field,
restrict it to CPUState type.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129164514.73104-3-philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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When a variable is initialized to &struct->field, use it
in place. Rationale: while this makes the code more concise,
this also helps static analyzers.
Mechanical change using the following Coccinelle spatch script:
@@
type S, F;
identifier s, m, v;
@@
S *s;
...
F *v = &s->m;
<+...
- &s->m
+ v
...+>
Inspired-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129164514.73104-2-philmd@linaro.org>
Acked-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
[thuth: Dropped hunks that need a rebase, and fixed sizeof() in pmu_realize()]
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Since the commit 05e385d2a9 ("error: Move ERRP_GUARD() to the beginning
of the function"), there are new codes that don't put ERRP_GUARD() at
the beginning of the functions.
As stated in the commit 05e385d2a9: "include/qapi/error.h advises to put
ERRP_GUARD() right at the beginning of the function, because only then
can it guard the whole function.", so clean up the few spots
disregarding the advice.
Inspired-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240312060337.3240965-1-zhao1.liu@linux.intel.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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As the comment in qapi/error, passing @errp to error_prepend() requires
ERRP_GUARD():
* = Why, when and how to use ERRP_GUARD() =
*
* Without ERRP_GUARD(), use of the @errp parameter is restricted:
...
* - It should not be passed to error_prepend(), error_vprepend() or
* error_append_hint(), because that doesn't work with &error_fatal.
* ERRP_GUARD() lifts these restrictions.
*
* To use ERRP_GUARD(), add it right at the beginning of the function.
* @errp can then be used without worrying about the argument being
* NULL or &error_fatal.
ERRP_GUARD() could avoid the case when @errp is &error_fatal, the user
can't see this additional information, because exit() happens in
error_setg earlier than information is added [1].
In target/s390x/cpu_models.c, there are 2 functions passing @errp to
error_prepend() without ERRP_GUARD():
- check_compatibility()
- s390_realize_cpu_model()
Though both their @errp parameters point to their callers' local @err
virables and don't cause the issue as [1] said, to follow the
requirement of @errp, also add missing ERRP_GUARD() at their beginning.
[1]: Issue description in the commit message of commit ae7c80a7bd73
("error: New macro ERRP_GUARD()").
Cc: David Hildenbrand <david@redhat.com>
Cc: Thomas Huth <thuth@redhat.com>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: qemu-s390x@nongnu.org
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Message-ID: <20240311033822.3142585-30-zhao1.liu@linux.intel.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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As the comment in qapi/error, passing @errp to error_prepend() requires
ERRP_GUARD():
* = Why, when and how to use ERRP_GUARD() =
*
* Without ERRP_GUARD(), use of the @errp parameter is restricted:
...
* - It should not be passed to error_prepend(), error_vprepend() or
* error_append_hint(), because that doesn't work with &error_fatal.
* ERRP_GUARD() lifts these restrictions.
*
* To use ERRP_GUARD(), add it right at the beginning of the function.
* @errp can then be used without worrying about the argument being
* NULL or &error_fatal.
ERRP_GUARD() could avoid the case when @errp is &error_fatal, the user
can't see this additional information, because exit() happens in
error_setg earlier than information is added [1].
The net_init_vhost_vdpa() passes @errp to error_prepend(), and as a
member of net_client_init_fun[], it's called in net_client_init1() and
gets @errp from this caller.
But because netdev_init_modern() passes &error_fatal to
net_client_init1(), then @errp parameter of net_init_vhost_vdpa() would
point to @error_fatal. This causes the error message in error_prepend()
to be lost because of the above issue.
To fix this, add missing ERRP_GUARD() at the beginning of this function.
[1]: Issue description in the commit message of commit ae7c80a7bd73
("error: New macro ERRP_GUARD()").
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240311033822.3142585-29-zhao1.liu@linux.intel.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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As the comment in qapi/error, passing @errp to error_prepend() requires
ERRP_GUARD():
* = Why, when and how to use ERRP_GUARD() =
*
* Without ERRP_GUARD(), use of the @errp parameter is restricted:
...
* - It should not be passed to error_prepend(), error_vprepend() or
* error_append_hint(), because that doesn't work with &error_fatal.
* ERRP_GUARD() lifts these restrictions.
*
* To use ERRP_GUARD(), add it right at the beginning of the function.
* @errp can then be used without worrying about the argument being
* NULL or &error_fatal.
ERRP_GUARD() could avoid the case when @errp is &error_fatal, the user
can't see this additional information, because exit() happens in
error_setg earlier than information is added [1].
The migrate_params_check() passes @errp to error_prepend() without
ERRP_GUARD(), and it could be called from migration_object_init(),
where the passed @errp points to @error_fatal.
Therefore, the error message echoed in error_prepend() will be lost
because of the above issue.
To fix this, add missing ERRP_GUARD() at the beginning of this function.
[1]: Issue description in the commit message of commit ae7c80a7bd73
("error: New macro ERRP_GUARD()").
Cc: Peter Xu <peterx@redhat.com>
Cc: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Acked-by: Peter Xu <peterx@redhat.com>
Message-ID: <20240311033822.3142585-28-zhao1.liu@linux.intel.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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As the comment in qapi/error, passing @errp to error_prepend() requires
ERRP_GUARD():
* = Why, when and how to use ERRP_GUARD() =
*
* Without ERRP_GUARD(), use of the @errp parameter is restricted:
...
* - It should not be passed to error_prepend(), error_vprepend() or
* error_append_hint(), because that doesn't work with &error_fatal.
* ERRP_GUARD() lifts these restrictions.
*
* To use ERRP_GUARD(), add it right at the beginning of the function.
* @errp can then be used without worrying about the argument being
* NULL or &error_fatal.
ERRP_GUARD() could avoid the case when @errp is &error_fatal, the user
can't see this additional information, because exit() happens in
error_setg earlier than information is added [1].
In hw/virtio/vhost.c, there are 2 functions passing @errp to
error_prepend() without ERRP_GUARD():
- vhost_save_backend_state()
- vhost_load_backend_state()
Their @errp both points to callers' @local_err. However, as the APIs
defined in include/hw/virtio/vhost.h, it is necessary to protect their
@errp with ERRP_GUARD().
To follow the requirement of @errp, add missing ERRP_GUARD() at their
beginning.
[1]: Issue description in the commit message of commit ae7c80a7bd73
("error: New macro ERRP_GUARD()").
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Message-ID: <20240311033822.3142585-27-zhao1.liu@linux.intel.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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As the comment in qapi/error, passing @errp to error_prepend() requires
ERRP_GUARD():
* = Why, when and how to use ERRP_GUARD() =
*
* Without ERRP_GUARD(), use of the @errp parameter is restricted:
...
* - It should not be passed to error_prepend(), error_vprepend() or
* error_append_hint(), because that doesn't work with &error_fatal.
* ERRP_GUARD() lifts these restrictions.
*
* To use ERRP_GUARD(), add it right at the beginning of the function.
* @errp can then be used without worrying about the argument being
* NULL or &error_fatal.
ERRP_GUARD() could avoid the case when @errp is &error_fatal, the user
can't see this additional information, because exit() happens in
error_setg earlier than information is added [1].
The vhost_vsock_device_realize() passes @errp to error_prepend(), and as
a VirtioDeviceClass.realize method, its @errp is from
DeviceClass.realize so that there is no guarantee that the @errp won't
point to @error_fatal.
To avoid the issue like [1] said, add missing ERRP_GUARD() at the
beginning of this function.
[1]: Issue description in the commit message of commit ae7c80a7bd73
("error: New macro ERRP_GUARD()").
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Message-ID: <20240311033822.3142585-26-zhao1.liu@linux.intel.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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As the comment in qapi/error, passing @errp to error_prepend() requires
ERRP_GUARD():
* = Why, when and how to use ERRP_GUARD() =
*
* Without ERRP_GUARD(), use of the @errp parameter is restricted:
...
* - It should not be passed to error_prepend(), error_vprepend() or
* error_append_hint(), because that doesn't work with &error_fatal.
* ERRP_GUARD() lifts these restrictions.
*
* To use ERRP_GUARD(), add it right at the beginning of the function.
* @errp can then be used without worrying about the argument being
* NULL or &error_fatal.
ERRP_GUARD() could avoid the case when @errp is &error_fatal, the user
can't see this additional information, because exit() happens in
error_setg earlier than information is added [1].
The vfio_platform_realize() passes @errp to error_prepend(), and as a
DeviceClass.realize method, there are too many possible callers to check
the impact of this defect; it may or may not be harmless. Thus it is
necessary to protect @errp with ERRP_GUARD().
To avoid the issue like [1] said, add missing ERRP_GUARD() at the
beginning of this function.
[1]: Issue description in the commit message of commit ae7c80a7bd73
("error: New macro ERRP_GUARD()").
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Message-ID: <20240311033822.3142585-25-zhao1.liu@linux.intel.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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As the comment in qapi/error, passing @errp to error_prepend() requires
ERRP_GUARD():
* = Why, when and how to use ERRP_GUARD() =
*
* Without ERRP_GUARD(), use of the @errp parameter is restricted:
...
* - It should not be passed to error_prepend(), error_vprepend() or
* error_append_hint(), because that doesn't work with &error_fatal.
* ERRP_GUARD() lifts these restrictions.
*
* To use ERRP_GUARD(), add it right at the beginning of the function.
* @errp can then be used without worrying about the argument being
* NULL or &error_fatal.
ERRP_GUARD() could avoid the case when @errp is &error_fatal, the user
can't see this additional information, because exit() happens in
error_setg earlier than information is added [1].
In hw/vfio/pci.c, there are 2 functions passing @errp to error_prepend()
without ERRP_GUARD():
- vfio_add_std_cap()
- vfio_realize()
The @errp of vfio_add_std_cap() is also from vfio_realize(). And
vfio_realize(), as a PCIDeviceClass.realize method, its @errp is from
DeviceClass.realize so that there is no guarantee that the @errp won't
point to @error_fatal.
To avoid the issue like [1] said, add missing ERRP_GUARD() at their
beginning.
[1]: Issue description in the commit message of commit ae7c80a7bd73
("error: New macro ERRP_GUARD()").
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Message-ID: <20240311033822.3142585-24-zhao1.liu@linux.intel.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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As the comment in qapi/error, passing @errp to error_prepend() requires
ERRP_GUARD():
* = Why, when and how to use ERRP_GUARD() =
*
* Without ERRP_GUARD(), use of the @errp parameter is restricted:
...
* - It should not be passed to error_prepend(), error_vprepend() or
* error_append_hint(), because that doesn't work with &error_fatal.
* ERRP_GUARD() lifts these restrictions.
*
* To use ERRP_GUARD(), add it right at the beginning of the function.
* @errp can then be used without worrying about the argument being
* NULL or &error_fatal.
ERRP_GUARD() could avoid the case when @errp is &error_fatal, the user
can't see this additional information, because exit() happens in
error_setg earlier than information is added [1].
In hw/vfio/pci-quirks.c, there are 2 functions passing @errp to
error_prepend() without ERRP_GUARD():
- vfio_add_nv_gpudirect_cap()
- vfio_add_vmd_shadow_cap()
There are too many possible callers to check the impact of this defect;
it may or may not be harmless. Thus it is necessary to protect their
@errp with ERRP_GUARD().
To avoid the issue like [1] said, add missing ERRP_GUARD() at the
beginning of this function.
[1]: Issue description in the commit message of commit ae7c80a7bd73
("error: New macro ERRP_GUARD()").
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Message-ID: <20240311033822.3142585-23-zhao1.liu@linux.intel.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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As the comment in qapi/error, passing @errp to error_prepend() requires
ERRP_GUARD():
* = Why, when and how to use ERRP_GUARD() =
*
* Without ERRP_GUARD(), use of the @errp parameter is restricted:
...
* - It should not be passed to error_prepend(), error_vprepend() or
* error_append_hint(), because that doesn't work with &error_fatal.
* ERRP_GUARD() lifts these restrictions.
*
* To use ERRP_GUARD(), add it right at the beginning of the function.
* @errp can then be used without worrying about the argument being
* NULL or &error_fatal.
ERRP_GUARD() could avoid the case when @errp is &error_fatal, the user
can't see this additional information, because exit() happens in
error_setg earlier than information is added [1].
The iommufd_cdev_getfd() passes @errp to error_prepend(). Its @errp is
from vfio_attach_device(), and there are too many possible callers to
check the impact of this defect; it may or may not be harmless. Thus it
is necessary to protect @errp with ERRP_GUARD().
To avoid the issue like [1] said, add missing ERRP_GUARD() at the
beginning of this function.
[1]: Issue description in the commit message of commit ae7c80a7bd73
("error: New macro ERRP_GUARD()").
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Message-ID: <20240311033822.3142585-22-zhao1.liu@linux.intel.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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As the comment in qapi/error, passing @errp to error_prepend() requires
ERRP_GUARD():
* = Why, when and how to use ERRP_GUARD() =
*
* Without ERRP_GUARD(), use of the @errp parameter is restricted:
...
* - It should not be passed to error_prepend(), error_vprepend() or
* error_append_hint(), because that doesn't work with &error_fatal.
* ERRP_GUARD() lifts these restrictions.
*
* To use ERRP_GUARD(), add it right at the beginning of the function.
* @errp can then be used without worrying about the argument being
* NULL or &error_fatal.
ERRP_GUARD() could avoid the case when @errp is &error_fatal, the user
can't see this additional information, because exit() happens in
error_setg earlier than information is added [1].
In hw/vfio/helpers.c, there are 3 functions passing @errp to
error_prepend() without ERRP_GUARD():
- vfio_set_irq_signaling()
- vfio_device_get_name()
- vfio_device_set_fd()
There are too many possible callers to check the impact of this defect;
it may or may not be harmless. Thus it is necessary to protect their
@errp with ERRP_GUARD().
To avoid the issue like [1] said, add missing ERRP_GUARD() at their
beginning.
[1]: Issue description in the commit message of commit ae7c80a7bd73
("error: New macro ERRP_GUARD()").
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Message-ID: <20240311033822.3142585-21-zhao1.liu@linux.intel.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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As the comment in qapi/error, passing @errp to error_prepend() requires
ERRP_GUARD():
* = Why, when and how to use ERRP_GUARD() =
*
* Without ERRP_GUARD(), use of the @errp parameter is restricted:
...
* - It should not be passed to error_prepend(), error_vprepend() or
* error_append_hint(), because that doesn't work with &error_fatal.
* ERRP_GUARD() lifts these restrictions.
*
* To use ERRP_GUARD(), add it right at the beginning of the function.
* @errp can then be used without worrying about the argument being
* NULL or &error_fatal.
ERRP_GUARD() could avoid the case when @errp is &error_fatal, the user
can't see this additional information, because exit() happens in
error_setg earlier than information is added [1].
The vfio_get_group() passes @errp to error_prepend(). Its @errp is
from vfio_attach_device(), and there are too many possible callers to
check the impact of this defect; it may or may not be harmless. Thus it
is necessary to protect @errp with ERRP_GUARD().
To avoid the issue like [1] said, add missing ERRP_GUARD() at the
beginning of this function.
[1]: Issue description in the commit message of commit ae7c80a7bd73
("error: New macro ERRP_GUARD()").
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Message-ID: <20240311033822.3142585-20-zhao1.liu@linux.intel.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
|