Commit Graph

116478 Commits

Author SHA1 Message Date
Paolo Bonzini
7cac7aa704 target/i386/hvf: fix handling of XSAVE-related CPUID bits
The call to xgetbv() is passing the ecx value for cpuid function 0xD,
index 0. The xgetbv call thus returns false (OSXSAVE is bit 27, which is
well out of the range of CPUID[0xD,0].ECX) and eax is not modified. While
fixing it, cache the whole computation of supported XCR0 bits since it
will be used for more than just CPUID leaf 0xD.

Furthermore, unsupported subleafs of CPUID 0xD (including all those
corresponding to zero bits in host's XCR0) must be hidden; if OSXSAVE
is not set at all, the whole of CPUID leaf 0xD plus the XSAVE bit must
be hidden.

Finally, unconditionally drop XSTATE_BNDREGS_MASK and XSTATE_BNDCSR_MASK;
real hardware will only show them if the MPX bit is set in CPUID;
this is never the case for hvf_get_supported_cpuid() because QEMU's
Hypervisor.framework support does not handle the VMX fields related to
MPX (even in the unlikely possibility that the host has MPX enabled).
So hide those bits in the new cache_host_xcr0().

Cc: Phil Dennis-Jordan <lists@philjordan.eu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:32 +01:00
Babu Moger
9c07a7af5d target/i386: Expose new feature bits in CPUID 8000_0021_EAX/EBX
Newer AMD CPUs support ERAPS (Enhanced Return Address Prediction Security)
feature that enables the auto-clear of RSB entries on a TLB flush, context
switches and VMEXITs. The number of default RSP entries is reflected in
RapSize.

Add the feature bit and feature word to support these features.

CPUID_Fn80000021_EAX
Bits   Feature Description
24     ERAPS:
       Indicates support for enhanced return address predictor security.

CPUID_Fn80000021_EBX
Bits   Feature Description
31-24  Reserved
23:16  RapSize:
       Return Address Predictor size. RapSize x 8 is the minimum number
       of CALL instructions software needs to execute to flush the RAP.
15-00  MicrocodePatchSize. Read-only.
       Reports the size of the Microcode patch in 16-byte multiples.
       If 0, the size of the patch is at most 5568 (15C0h) bytes.

Link: https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/programmer-references/57238.zip
Signed-off-by: Babu Moger <babu.moger@amd.com>
Link: https://lore.kernel.org/r/7c62371fe60af1e9bbd853f5f8e949bf2d908bd0.1729807947.git.babu.moger@amd.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:32 +01:00
Babu Moger
2ec282b8ea target/i386: Expose bits related to SRSO vulnerability
Add following bits related Speculative Return Stack Overflow (SRSO).
Guests can make use of these bits if supported.

These bits are reported via CPUID Fn8000_0021_EAX.
===================================================================
Bit Feature Description
===================================================================
27  SBPB                Indicates support for the Selective Branch Predictor Barrier.
28  IBPB_BRTYPE         MSR_PRED_CMD[IBPB] flushes all branch type predictions.
29  SRSO_NO             Not vulnerable to SRSO.
30  SRSO_USER_KERNEL_NO Not vulnerable to SRSO at the user-kernel boundary.
===================================================================

Link: https://www.amd.com/content/dam/amd/en/documents/corporate/cr/speculative-return-stack-overflow-whitepaper.pdf
Link: https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/programmer-references/57238.zip
Signed-off-by: Babu Moger <babu.moger@amd.com>
Link: https://lore.kernel.org/r/dadbd70c38f4e165418d193918a3747bd715c5f4.1729807947.git.babu.moger@amd.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:32 +01:00
Sandipan Das
209b0ac120 target/i386: Add PerfMonV2 feature bit
CPUID leaf 0x80000022, i.e. ExtPerfMonAndDbg, advertises new performance
monitoring features for AMD processors. Bit 0 of EAX indicates support
for Performance Monitoring Version 2 (PerfMonV2) features. If found to
be set during PMU initialization, the EBX bits can be used to determine
the number of available counters for different PMUs. It also denotes the
availability of global control and status registers.

Add the required CPUID feature word and feature bit to allow guests to
make use of the PerfMonV2 features.

Signed-off-by: Sandipan Das <sandipan.das@amd.com>
Signed-off-by: Babu Moger <babu.moger@amd.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/a96f00ee2637674c63c61e9fc4dee343ea818053.1729807947.git.babu.moger@amd.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:32 +01:00
Babu Moger
9c882ad4dc target/i386: Fix minor typo in NO_NESTED_DATA_BP feature bit
Rename CPUID_8000_0021_EAX_No_NESTED_DATA_BP to
       CPUID_8000_0021_EAX_NO_NESTED_DATA_BP.

No functional change intended.

Signed-off-by: Babu Moger <babu.moger@amd.com>
Link: https://lore.kernel.org/r/a6749acd125670d3930f4ca31736a91b1d965f2f.1729807947.git.babu.moger@amd.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:32 +01:00
Paolo Bonzini
f41823e059 qom: allow user-creatable classes to be in modules
There is no real reason to make user-creatable classes different
from other backends in this respect.  This also allows modularized
character devices to be treated by qom-list-properties just like
builtin ones.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:32 +01:00
Paolo Bonzini
02009a12bc qom: let object_new use a module if the type is not present
object_initialize() can use modules (it was added there because
virtio-gpu-device is a child device of virtio-gpu-pci; commit
64f7aece8e, "object_initialize: try module load", 2020-09-15).
object_new() cannot; make things consistent.

qdev_new() is now just a simple wrapper that returns DeviceState.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:32 +01:00
Paolo Bonzini
144d80f69e qom: centralize module-loading functionality
Put together the common code of object_initialize() and
module_object_class_by_name() into a function that supports
Error **.  Rename the existing function type_get_by_name() to
clarify that it will only look at defined types; this is often
okay within object.c to look at the parents, but not outside it.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:32 +01:00
Paolo Bonzini
b801e3cb2a qom: use object_new_with_class when possible
A small optimization/code simplification, that also makes it clear that
we won't look for a type in a not-loaded-yet module---the module will
have been loaded by a call to module_object_class_by_name(), if present.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:32 +01:00
Paolo Bonzini
845b54efaf qom: remove unused function
The function has been unused since commit 4fa28f2390 ("ppc/pnv:
Instantiate cores separately", 2019-12-17).  The idea was that
you could use it to build an array of objects via pointer
arithmetic, but no one is doing it anymore.

Cc: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:32 +01:00
Xiaoyao Li
855bdb6c8a i386/cpu: Drop the check of phys_bits in host_cpu_realizefn()
The check of cpu->phys_bits to be in range between
[32, TARGET_PHYS_ADDR_SPACE_BITS] in host_cpu_realizefn()
is duplicated with check in x86_cpu_realizefn().

Since the ckeck in x86_cpu_realizefn() is called later and can cover all
the x86 cases. Remove the one in host_cpu_realizefn().

Opportunistically adjust cpu->phys_bits directly in
host_cpu_adjust_phys_bits(), which matches more with the function name.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20240929085747.2023198-1-xiaoyao.li@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:32 +01:00
Paolo Bonzini
8aade934df accel: remove dead statement and useless assertion
ops is assigned again just below, and the result of the assignment must
be non-NULL.

Originally, the check for NULL was meant to be a check for the existence
of the ops class:

    ops = ACCEL_OPS_CLASS(object_class_by_name(ops_name));
    ...
    g_assert(ops != NULL);

(where the ops assignment begot the one that I am removing); but this is
meaningless now that oc is checked to be non-NULL before ops is assigned
(commit 5141e9a23f, "accel: abort if we fail to load the accelerator
plugin", 2022-11-06).

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:32 +01:00
Zhao Liu
3139ad088b MAINTAINERS: Add myself as a reviewer of x86 general architecture support
X86 architecture has always been a focus of my work. I would like to
help to review more related patches.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20241022023628.1743686-1-zhao1.liu@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:32 +01:00
Paolo Bonzini
14ed29da41 configure, meson: deprecate 32-bit MIPS
The mipsel architecture is not available in Debian Trixie, and it will
likely be a hard failure as soon as we drop support for the old Rust
toolchain in Debian Bookworm.  Prepare by deprecating 32-bit little
endian MIPS in QEMU 9.2.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:32 +01:00
Paolo Bonzini
0665b3f992 configure: detect 64-bit MIPS
While right now 64-bit MIPS and 32-bit MIPS share the code in QEMU,
Rust uses different rules for the target.  Set $cpu correctly to
either mips or mips64 (--cpu=mips64* is already accepted in the case
statement that canonicalizes cpu/host_arch/linux_arch), and adjust
the checks to account for the different between $cpu (which handles
mips/mips64 separately) and $host_arch (which does not).

Fixes: 1a6ef6ff62 ("configure, meson: detect Rust toolchain", 2024-10-11)
Acked-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:32 +01:00
Pierrick Bouvier
b57e4e785b scripts: remove erroneous file that breaks git clone on Windows
This file was created by mistake in recent ed7667188 (9p: remove
'proxy' filesystem backend driver).

When cloning the repository using native git for windows, we see this:
Error: error: invalid path 'scripts/meson-buildoptions.'
Error: The process 'C:\Program Files\Git\bin\git.exe' failed with exit code 128
Link: https://lore.kernel.org/r/20241023073914.895438-1-pierrick.bouvier@linaro.org

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-30 16:30:56 +01:00
Paolo Bonzini
14bde8cd76 target/i386: fix CPUID check for LFENCE and SFENCE
LFENCE and SFENCE were introduced with the original SSE instruction set;
marking them incorrectly as cpuid(SSE2) causes failures for CPU models
that lack SSE2, for example pentium3.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-30 16:30:56 +01:00
Daniel P. Berrangé
15195de6a9 ci: enable rust in the Fedora system build job
We previously added a new job running Fedora with nightly rust
toolchain.

The standard rust toolchain distributed by Fedora is new enough,
however, to let us enable a CI build with that too.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Link: https://lore.kernel.org/r/20241015133925.311587-3-berrange@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-30 16:30:56 +01:00
Daniel P. Berrangé
548de8f8dc tests: add 'rust' and 'bindgen' to CI package list
Although we're not enabling rust by default yet, we can still add
rust and bindgen to the CI package list.

This demonstrates that we're not accidentally triggering unexpected
build behaviour merely from Rust being present. When we do dev work
to enable rust by default, this will show we're building correctly
on all platforms we target.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Link: https://lore.kernel.org/r/20241015133925.311587-2-berrange@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-30 16:30:56 +01:00
Paolo Bonzini
388b849fb6 stubs: avoid duplicate symbols in libqemuutil.a
qapi_event_send_device_deleted is always included (together with the
rest of QAPI) in libqemuutil.a if either system-mode emulation or tools
are being built, and in that case the stub causes a duplicate symbol
to appear in libqemuutil.a.

Add the symbol only if events are not being requested.

Cc: qemu-stable@nongnu.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-30 16:30:56 +01:00
Peter Maydell
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 -----END PGP SIGNATURE-----

Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into staging

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# gpg: Signature made Tue 29 Oct 2024 07:54:14 GMT
# gpg:                using RSA key 215D46F48246689EC77F3562EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.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: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* tag 'net-pull-request' of https://github.com/jasowang/qemu:
  virtio-net: Avoid indirection_table_mask overflow
  Fix calculation of minimum in colo_compare_tcp
  net: Check if nc is NULL in qemu_get_vnet_hdr_len()
  net/tap-win32: Fix gcc 14 format truncation errors
  chardev: finalize 'reconnect' deprecation
  net/stream: deprecate 'reconnect' in favor of 'reconnect-ms'
  hw/net: improve tracing of eBPF RSS setup
  ebpf: improve trace event coverage to all key operations
  hw/net: report errors from failing to use eBPF RSS FDs
  ebpf: add formal error reporting to all APIs
  ebpf: improve error trace events
  ebpf: drop redundant parameter checks in static methods
  hw/net: fix typo s/epbf/ebpf/ in virtio-net
  net: fix build when libbpf is disabled, but libxdp is enabled

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-10-29 14:00:43 +00:00
Akihiko Odaki
cd76e8fcbe virtio-net: Avoid indirection_table_mask overflow
We computes indirections_len by adding 1 to indirection_table_mask, but
it may overflow indirection_table_mask is UINT16_MAX. Check if
indirection_table_mask is small enough before adding 1.

Fixes: 590790297c ("virtio-net: implement RSS configuration command")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-10-29 15:53:29 +08:00
Stefan Weil
e29bc931e1 Fix calculation of minimum in colo_compare_tcp
GitHub's CodeQL reports a critical error which is fixed by using the MIN macro:

    Unsigned difference expression compared to zero

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Cc: qemu-stable@nongnu.org
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-10-29 15:53:23 +08:00
Akihiko Odaki
76240dd2a3 net: Check if nc is NULL in qemu_get_vnet_hdr_len()
A netdev may not have a peer specified, resulting in NULL. We should
make it behave like /dev/null in such a case instead of letting it
cause segmentatin fault.

Fixes: 4b52d63249 ("tap: Remove qemu_using_vnet_hdr()")
Cc: qemu-stable@nongnu.org
Reported-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by; Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-10-28 14:37:25 +08:00
Bernhard Beschow
75fe36b4e8 net/tap-win32: Fix gcc 14 format truncation errors
The patch fixes the following errors generated by GCC 14.2:

../src/net/tap-win32.c:343:19: error: '%s' directive output may be truncated writing up to 255 bytes into a region of size 176 [-Werror=format-truncation=]
  343 |              "%s\\%s\\Connection",
      |                   ^~
  344 |              NETWORK_CONNECTIONS_KEY, enum_name);
      |                                       ~~~~~~~~~

../src/net/tap-win32.c:341:9: note: 'snprintf' output between 92 and 347 bytes into a destination of size 256
  341 |         snprintf(connection_string,
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~
  342 |              sizeof(connection_string),
      |              ~~~~~~~~~~~~~~~~~~~~~~~~~~
  343 |              "%s\\%s\\Connection",
      |              ~~~~~~~~~~~~~~~~~~~~~
  344 |              NETWORK_CONNECTIONS_KEY, enum_name);
      |              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

../src/net/tap-win32.c:242:58: error: '%s' directive output may be truncated writing up to 255 bytes into a region of size 178 [-Werror=format-truncation=]
  242 |         snprintf (unit_string, sizeof(unit_string), "%s\\%s",
      |                                                          ^~
  243 |                   ADAPTER_KEY, enum_name);
      |                                ~~~~~~~~~

../src/net/tap-win32.c:242:9: note: 'snprintf' output between 79 and 334 bytes into a destination of size 256
  242 |         snprintf (unit_string, sizeof(unit_string), "%s\\%s",
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  243 |                   ADAPTER_KEY, enum_name);
      |                   ~~~~~~~~~~~~~~~~~~~~~~~

../src/net/tap-win32.c:620:52: error: '%s' directive output may be truncated writing up to 255 bytes into a region of size 245 [-Werror=format-truncation=]
  620 |     snprintf (device_path, sizeof(device_path), "%s%s%s",
      |                                                    ^~
  621 |               USERMODEDEVICEDIR,
  622 |               device_guid,
      |               ~~~~~~~~~~~
../src/net/tap-win32.c:620:5: note: 'snprintf' output between 16 and 271 bytes into a destination of size 256
  620 |     snprintf (device_path, sizeof(device_path), "%s%s%s",
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  621 |               USERMODEDEVICEDIR,
      |               ~~~~~~~~~~~~~~~~~~
  622 |               device_guid,
      |               ~~~~~~~~~~~~
  623 |               TAPSUFFIX);
      |               ~~~~~~~~~~

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2607
Cc: qemu-stable@nongnu.org
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-10-28 14:37:25 +08:00
Daniil Tatianin
96e610b23d chardev: finalize 'reconnect' deprecation
Change all related docs and tests to use the new 'reconnect-ms' option
instead of the now deprecated 'reconnect'.

Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-10-28 14:37:25 +08:00
Daniil Tatianin
c40e962d83 net/stream: deprecate 'reconnect' in favor of 'reconnect-ms'
Do the same thing we already did for chardev in c8e2b6b4d7, and
introduce a new 'reconnect-ms' option to make it possible to specify
sub-second timeouts. This also changes the related documentaion and
tests to use reconnect-ms as well.

Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-10-28 14:37:25 +08:00
Daniel P. Berrangé
ae311fb315 hw/net: improve tracing of eBPF RSS setup
This adds more trace events to key eBPF RSS setup operations, and
also distinguishes events from multiple NIC instances.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-10-28 14:37:25 +08:00
Daniel P. Berrangé
f5cae19d10 ebpf: improve trace event coverage to all key operations
The existing error trace event is renamed to have a name prefix
matching its source file & to remove the redundant first arg that
adds no useful information.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-10-28 14:37:25 +08:00
Daniel P. Berrangé
b5900dff14 hw/net: report errors from failing to use eBPF RSS FDs
If the user/mgmt app passed in a set of pre-opened FDs for eBPF RSS,
then it is expecting QEMU to use them. Any failure to do so must be
considered a fatal error and propagated back up the stack, otherwise
deployment mistakes will not be detectable in a prompt manner. When
not using pre-opened FDs, then eBPF RSS is tried on a "best effort"
basis only and thus fallback to software RSS is valid.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-10-28 14:37:25 +08:00
Daniel P. Berrangé
00b69f1d86 ebpf: add formal error reporting to all APIs
The eBPF code is currently reporting error messages through trace
events. Trace events are fine for debugging, but they are not to be
considered the primary error reporting mechanism, as their output
is inaccessible to callers.

This adds an "Error **errp" parameter to all methods which have
important error scenarios to report to the caller.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-10-28 14:37:25 +08:00
Daniel P. Berrangé
31efce1e31 ebpf: improve error trace events
A design pattern of

   trace_foo_error("descriptive string")

is undesirable because it does not allow for filtering trace events
based on the error scenario. Split eBPF error trace event into three
separate events to address this filtering need.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-10-28 14:37:25 +08:00
Daniel P. Berrangé
a9436dd407 ebpf: drop redundant parameter checks in static methods
Various static methods have checks on their parameters which were
already checked immediately before the method was invoked. Drop
these redundat checks to simplify the following commit which adds
formal error reporting.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-10-28 14:37:25 +08:00
Daniel P. Berrangé
493a2403c2 hw/net: fix typo s/epbf/ebpf/ in virtio-net
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-10-28 14:37:25 +08:00
Daniel P. Berrangé
1f37280b37 net: fix build when libbpf is disabled, but libxdp is enabled
The net/af-xdp.c code is enabled when the libxdp library is present,
however, it also has direct API calls to bpf_xdp_query_id &
bpf_xdp_detach which are provided by the libbpf library.

As a result if building with --disable-libbpf, but libxdp gets
auto-detected, we'll fail to link QEMU

  /usr/bin/ld: libcommon.a.p/net_af-xdp.c.o: undefined reference to symbol 'bpf_xdp_query_id@@LIBBPF_0.7.0'

There are two bugs here

 * Since we have direct libbpf API calls, when building
   net/af-xdp.c, we must tell meson that libbpf is a
   dependancy, so that we directly link to it, rather
   than relying on indirect linkage.

 * When must skip probing for libxdp at all, when libbpf
   is not found, raising an error if --enable-libxdp was
   given explicitly.

Fixes: cb039ef3d9
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-10-28 14:37:25 +08:00
Peter Maydell
fdf250e5a3 testing, gdbstub and plugin updates
- update MAINTAINERS with pointers to foo/next
   - add NOFETCH to help test custom docker builds
   - update microblaze toolchain with atomic fixes
   - update tsan build and documentation
   - don't restrict build-environment by arch unless needed
   - add cross-modifying code test
   - add tracepoints for cpu_step_atomic fallbacks
   - fix defaults for loongarch cross build
   - make check-[dco|patch] a little more verbose
   - fix gdbstub bug preventing aarch64_be-linux-user starting
   - add basic test for aarch64_be
   - clean up some gdbstub test scripts
   - fix qemu_plugin_reset
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Merge tag 'pull-maintainer-oct-misc-241024-1' of https://gitlab.com/stsquad/qemu into staging

testing, gdbstub and plugin updates

  - update MAINTAINERS with pointers to foo/next
  - add NOFETCH to help test custom docker builds
  - update microblaze toolchain with atomic fixes
  - update tsan build and documentation
  - don't restrict build-environment by arch unless needed
  - add cross-modifying code test
  - add tracepoints for cpu_step_atomic fallbacks
  - fix defaults for loongarch cross build
  - make check-[dco|patch] a little more verbose
  - fix gdbstub bug preventing aarch64_be-linux-user starting
  - add basic test for aarch64_be
  - clean up some gdbstub test scripts
  - fix qemu_plugin_reset

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# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 24 Oct 2024 10:05:40 BST
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* tag 'pull-maintainer-oct-misc-241024-1' of https://gitlab.com/stsquad/qemu:
  plugins: fix qemu_plugin_reset
  MAINTAINERS: mention my plugins/next tree
  testing: Enhance gdb probe script
  tests/tcg/aarch64: Use raw strings for regexes in test-mte.py
  tests/tcg: enable basic testing for aarch64_be-linux-user
  config/targets: update aarch64_be-linux-user gdb XML list
  MAINTAINERS: mention my gdbstub/next tree
  gitlab: make check-[dco|patch] a little more verbose
  dockerfiles: fix default targets for debian-loongarch-cross
  accel/tcg: add tracepoints for cpu_loop_exit_atomic
  tests/tcg/x86_64: Add cross-modifying code test
  scripts/ci: remove architecture checks for build-environment updates
  docs/devel: update tsan build documentation
  meson: hide tsan related warnings
  MAINTAINERS: mention my testing/next tree
  tests/docker: add NOFETCH env variable for testing
  tests/docker: Fix microblaze atomics

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-10-25 19:12:06 +01:00
Peter Maydell
cea8ac7854 aspeed queue:
* Fixed GPIO interrupt status when in index mode
 * Added GPIO support for the AST2700 SoC and specific test cases
 * Fixed crypto controller (HACE) Accumulative hash function
 * Converted Aspeed machine avocado tests to the new functional
   framework. SDK tests still to be addressed.
 * Fixed issue in the SSI controller when doing writes in user mode
 * Added support for the WRSR2 register of Winbond flash devices
 * Added SFDP table for the Windbond w25q80bl flash device
 * Changed flash device models for the ast1030-a1 EVB
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 -----END PGP SIGNATURE-----

Merge tag 'pull-aspeed-20241024' of https://github.com/legoater/qemu into staging

aspeed queue:

* Fixed GPIO interrupt status when in index mode
* Added GPIO support for the AST2700 SoC and specific test cases
* Fixed crypto controller (HACE) Accumulative hash function
* Converted Aspeed machine avocado tests to the new functional
  framework. SDK tests still to be addressed.
* Fixed issue in the SSI controller when doing writes in user mode
* Added support for the WRSR2 register of Winbond flash devices
* Added SFDP table for the Windbond w25q80bl flash device
* Changed flash device models for the ast1030-a1 EVB

# -----BEGIN PGP SIGNATURE-----
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# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 24 Oct 2024 07:27:14 BST
# gpg:                using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@redhat.com>" [full]
# gpg:                 aka "Cédric Le Goater <clg@kaod.org>" [full]
# Primary key fingerprint: A0F6 6548 F048 95EB FE6B  0B60 51A3 43C7 CFFB ECA1

* tag 'pull-aspeed-20241024' of https://github.com/legoater/qemu:
  test/qtest/aspeed_smc-test: Fix coding style
  hw/arm/aspeed: Correct fmc_model w25q80bl for ast1030-a1 EVB
  hw/arm/aspeed: Correct spi_model w25q256 for ast1030-a1 EVB.
  hw/block/m25p80: Add SFDP table for w25q80bl flash
  hw/block:m25p80: Support write status register 2 command (0x31) for w25q01jvq
  hw/block:m25p80: Fix coding style
  aspeed/smc: Fix write incorrect data into flash in user mode
  tests/functional: Convert most Aspeed machine tests
  hw/misc/aspeed_hace: Fix SG Accumulative hashing
  tests/qtest:ast2700-gpio-test: Add GPIO test case for AST2700
  aspeed/soc: Support GPIO for AST2700
  aspeed/soc: Correct GPIO irq 130 for AST2700
  hw/gpio/aspeed: Add AST2700 support
  hw/gpio/aspeed: Fix clear incorrect interrupt status for GPIO index mode
  hw/gpio/aspeed: Support different memory region ops
  hw/gpio/aspeed: Support to set the different memory size
  hw/gpio/aspeed: Fix coding style

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-10-25 13:35:22 +01:00
Peter Maydell
94be8fd692 vfio queue:
* Fixed size reported in vfio_state_pending_exact()
 * Added support for PMD or PUD aligned mappings
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Merge tag 'pull-vfio-20241024' of https://github.com/legoater/qemu into staging

vfio queue:

* Fixed size reported in vfio_state_pending_exact()
* Added support for PMD or PUD aligned mappings

# -----BEGIN PGP SIGNATURE-----
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# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 24 Oct 2024 06:30:20 BST
# gpg:                using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@redhat.com>" [full]
# gpg:                 aka "Cédric Le Goater <clg@kaod.org>" [full]
# Primary key fingerprint: A0F6 6548 F048 95EB FE6B  0B60 51A3 43C7 CFFB ECA1

* tag 'pull-vfio-20241024' of https://github.com/legoater/qemu:
  vfio/helpers: Align mmaps
  vfio/helpers: Refactor vfio_region_mmap() error handling
  vfio/migration: Change trace formats from hex to decimal
  vfio/migration: Report only stop-copy size in vfio_state_pending_exact()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-10-25 13:35:13 +01:00
Peter Maydell
e17e57e862 * Allow multiple boot devices (via bootindex properties) on s390x
* Avoid TEXTREL relocations in the s390-ccw.img firmware
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Merge tag 'pull-request-2024-10-23' of https://gitlab.com/thuth/qemu into staging

* Allow multiple boot devices (via bootindex properties) on s390x
* Avoid TEXTREL relocations in the s390-ccw.img firmware

# -----BEGIN PGP SIGNATURE-----
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# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 23 Oct 2024 14:15:39 BST
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2024-10-23' of https://gitlab.com/thuth/qemu: (23 commits)
  pc-bios/s390-ccw: Update s390-ccw.img with the full boot order support feature
  pc-bios/s390-ccw: Introduce `EXTRA_LDFLAGS`
  pc-bios/s390-ccw: Don't generate TEXTRELs
  pc-bios/s390-ccw: Clarify alignment is in bytes
  tests/qtest: Add s390x boot order tests to cdrom-test.c
  docs/system: Update documentation for s390x IPL
  pc-bios/s390x: Enable multi-device boot loop
  s390x: Rebuild IPLB for SCSI device directly from DIAG308
  hw/s390x: Build an IPLB for each boot device
  s390x: Add individual loadparm assignment to CCW device
  include/hw/s390x: Add include files for common IPL structs
  pc-bios/s390-ccw: Enable failed IPL to return after error
  pc-bios/s390-ccw: Remove panics from Netboot IPL path
  pc-bios/s390-ccw: Remove panics from DASD IPL path
  pc-bios/s390-ccw: Remove panics from SCSI IPL path
  pc-bios/s390-ccw: Remove panics from ECKD IPL path
  pc-bios/s390-ccw: Remove panics from ISO IPL path
  docs/system/s390x/bootdevices: Update the documentation about network booting
  pc-bios/s390-ccw: Merge netboot.mak into the main Makefile
  hw/s390x: Remove the possibility to load the s390-netboot.img binary
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-10-24 15:21:53 +01:00
Peter Maydell
6b3756503b tcg: Reset data_gen_ptr correctly
tcg/riscv: Implement host vector support
 tcg/ppc: Fix tcg_out_rlw_rc
 target/i386: Walk NPT in guest real mode
 target/i386: Use probe_access_full_mmu in ptw_translate
 linux-user: Fix build failure caused by missing __u64 on musl
 linux-user: Emulate /proc/self/maps under mmap_lock
 linux-user/riscv: Fix definition of RISCV_HWPROBE_EXT_ZVFHMIN
 linux-user/ppc: Fix sigmask endianness issue in sigreturn
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Merge tag 'pull-tcg-20241022' of https://gitlab.com/rth7680/qemu into staging

tcg: Reset data_gen_ptr correctly
tcg/riscv: Implement host vector support
tcg/ppc: Fix tcg_out_rlw_rc
target/i386: Walk NPT in guest real mode
target/i386: Use probe_access_full_mmu in ptw_translate
linux-user: Fix build failure caused by missing __u64 on musl
linux-user: Emulate /proc/self/maps under mmap_lock
linux-user/riscv: Fix definition of RISCV_HWPROBE_EXT_ZVFHMIN
linux-user/ppc: Fix sigmask endianness issue in sigreturn

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# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* tag 'pull-tcg-20241022' of https://gitlab.com/rth7680/qemu: (24 commits)
  linux-user/riscv: Fix definition of RISCV_HWPROBE_EXT_ZVFHMIN
  linux-user: Fix build failure caused by missing __u64 on musl
  linux-user: Trace rt_sigprocmask's sigsets
  linux-user/ppc: Fix sigmask endianness issue in sigreturn
  linux-user: Emulate /proc/self/maps under mmap_lock
  target/i386: Remove ra parameter from ptw_translate
  target/i386: Use probe_access_full_mmu in ptw_translate
  target/i386: Walk NPT in guest real mode
  include/exec: Improve probe_access_full{, _mmu} documentation
  tcg/ppc: Fix tcg_out_rlw_rc
  tcg/riscv: Enable native vector support for TCG host
  tcg/riscv: Implement vector roti/v/x ops
  tcg/riscv: Implement vector shi/s/v ops
  tcg/riscv: Implement vector min/max ops
  tcg/riscv: Implement vector sat/mul ops
  tcg/riscv: Accept constant first argument to sub_vec
  tcg/riscv: Implement vector neg ops
  tcg/riscv: Implement vector cmp/cmpsel ops
  tcg/riscv: Add support for basic vector opcodes
  tcg/riscv: Implement vector mov/dup{m/i}
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-10-24 15:21:42 +01:00
Peter Maydell
e67b7aef7c Block layer patches
- Event throttling for BLOCK_IO_ERROR
 - iotests: Fix backup-discard-source test for XFS
 - Coverity fixes
 - raw-format: Fix error message for invalid offset/size
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Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into staging

Block layer patches

- Event throttling for BLOCK_IO_ERROR
- iotests: Fix backup-discard-source test for XFS
- Coverity fixes
- raw-format: Fix error message for invalid offset/size

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# gpg: Signature made Tue 22 Oct 2024 17:47:00 BST
# gpg:                using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg:                issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* tag 'for-upstream' of https://repo.or.cz/qemu/kevin:
  raw-format: Fix error message for invalid offset/size
  block-backend: per-device throttling of BLOCK_IO_ERROR reports
  qapi: add qom-path to BLOCK_IO_ERROR event
  iotests/backup-discard-source: don't use actual-size
  iotests/backup-discard-source: convert size variable to be int
  block/vdi.c: Make SECTOR_SIZE constant 64-bits
  tests/qemu-iotests/211.out: Update to expect MapEntry 'compressed' field
  block/ssh.c: Don't double-check that characters are hex digits
  block/gluster: Use g_autofree for string in qemu_gluster_parse_json()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-10-24 11:23:46 +01:00
Peter Maydell
e51d8fbb7e Misc sockets, crypto and VNC fixes
* Fix rare EADDRINUSE failures on OpenBSD platforms seen
   with migration
 * Fix & test overwriting of hash output buffer
 * Close connection instead of returning empty SASL mechlist to
   VNC clients
 * Fix handling of SASL SSF on VNC server UNIX sockets
 * Fix handling of NULL SASL server data in VNC server
 * Validate trailing NUL padding byte from SASL client
 * Fix & test AF_ALG crypto backend build
 * Remove unused code in sockets and crypto subsystems
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Merge tag 'misc-fixes-pull-request' of https://gitlab.com/berrange/qemu into staging

Misc sockets, crypto and VNC fixes

* Fix rare EADDRINUSE failures on OpenBSD platforms seen
  with migration
* Fix & test overwriting of hash output buffer
* Close connection instead of returning empty SASL mechlist to
  VNC clients
* Fix handling of SASL SSF on VNC server UNIX sockets
* Fix handling of NULL SASL server data in VNC server
* Validate trailing NUL padding byte from SASL client
* Fix & test AF_ALG crypto backend build
* Remove unused code in sockets and crypto subsystems

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# gpg: Signature made Tue 22 Oct 2024 15:08:05 BST
# gpg:                using RSA key DAF3A6FDB26B62912D0E8E3FBE86EBB415104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>" [full]
# gpg:                 aka "Daniel P. Berrange <berrange@redhat.com>" [full]
# Primary key fingerprint: DAF3 A6FD B26B 6291 2D0E  8E3F BE86 EBB4 1510 4FDF

* tag 'misc-fixes-pull-request' of https://gitlab.com/berrange/qemu:
  gitlab: enable afalg tests in fedora system test
  ui: validate NUL byte padding in SASL client data more strictly
  ui: fix handling of NULL SASL server data
  ui/vnc: don't check for SSF after SASL authentication on UNIX sockets
  ui/vnc: fix skipping SASL SSF on UNIX sockets
  ui/vnc: don't raise error formatting socket address for non-inet
  ui/vnc: don't return an empty SASL mechlist to the client
  crypto/hash-afalg: Fix broken build
  include/crypto: clarify @result/@result_len for hash/hmac APIs
  tests: correctly validate result buffer in hash/hmac tests
  crypto/hash: avoid overwriting user supplied result pointer
  util: don't set SO_REUSEADDR on client sockets
  sockets: Remove deadcode
  crypto: Remove unused DER string functions

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-10-24 11:23:38 +01:00
Pierrick Bouvier
b56f7dd203 plugins: fix qemu_plugin_reset
34e5e1 refactored the plugin context initialization. After this change,
tcg_ctx->plugin_insn is not reset inconditionnally anymore, but only if
one plugin at least is active.

When uninstalling the last plugin active, we stopped reinitializing
tcg_ctx->plugin_insn, which leads to memory callbacks being emitted.
This results in an error as they don't appear in a plugin op sequence as
expected.

The correct fix is to make sure we reset plugin translation variables
after current block translation ends. This way, we can catch any
potential misuse of those after a given block, in more than fixing the
current bug.

Fixes: https://gitlab.com/qemu-project/qemu/-/issues/2570
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Tested-by: Robbin Ehn <rehn@rivosinc.com>
Message-Id: <20241015003819.984601-1-pierrick.bouvier@linaro.org>
[AJB: trim patch version details from commit msg]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20241023113406.1284676-19-alex.bennee@linaro.org>
2024-10-24 10:04:09 +01:00
Alex Bennée
4603156f77 MAINTAINERS: mention my plugins/next tree
Make it easier to find where plugin patches are being staged.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20241023113406.1284676-17-alex.bennee@linaro.org>
2024-10-24 09:56:49 +01:00
Gustavo Romero
345dedbad2 testing: Enhance gdb probe script
Use list and set comprehension to simplify code. Also, gently handle
invalid gdb filenames.

Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20241015145848.387281-1-gustavo.romero@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20241023113406.1284676-16-alex.bennee@linaro.org>
2024-10-24 09:56:45 +01:00
Gustavo Romero
bb77c68dbd tests/tcg/aarch64: Use raw strings for regexes in test-mte.py
Use Python's raw string notation instead of string literals for regex so
it's not necessary to double backslashes when regex special forms are
used. Raw notation is preferred for regex and easier to read.

Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20241015140806.385449-1-gustavo.romero@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20241023113406.1284676-15-alex.bennee@linaro.org>
2024-10-24 09:56:42 +01:00
Alex Bennée
2e1cacfb8a tests/tcg: enable basic testing for aarch64_be-linux-user
We didn't notice breakage of aarch64_be because we don't have any TCG
tests for it. However while the existing aarch64 compiler can target
big-endian builds no one packages a BE libc. Instead we bang some
rocks together to do the most basic of hello world with a nostdlib
syscall test.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20241023113406.1284676-14-alex.bennee@linaro.org>
2024-10-24 09:56:37 +01:00
Alex Bennée
591e848aca config/targets: update aarch64_be-linux-user gdb XML list
Attempting to run the binary asserts when it can't find the XML entry.
We can fix it so we don't although I suspect other stuff is broken.

Fixes: https://gitlab.com/qemu-project/qemu/-/issues/2580
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20241023113406.1284676-13-alex.bennee@linaro.org>
2024-10-24 09:56:34 +01:00
Alex Bennée
0f48656a09 MAINTAINERS: mention my gdbstub/next tree
Make it easy for people to see what is already queued.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20241023113406.1284676-12-alex.bennee@linaro.org>
2024-10-24 09:56:29 +01:00
Alex Bennée
97f116f9c6 gitlab: make check-[dco|patch] a little more verbose
When git fails the rather terse backtrace only indicates it failed
without some useful context. Add some to make the log a little more
useful.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20241023113406.1284676-11-alex.bennee@linaro.org>
2024-10-24 09:56:29 +01:00