Commit Graph

98573 Commits

Author SHA1 Message Date
Sebastian Mitterle
82a628f887 qemu-edid: Restrict input parameter -d to avoid division by zero
A zero value for dpi will lead to a division by zero in qemu_edid_dpi_to_mm().
Tested by runnig qemu-edid -dX, X = 0, 100.

Resolves: qemu-project/qemu#1249

Suggested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Sebastian Mitterle <smitterl@redhat.com>
Message-Id: <20221011151216.64897-1-smitterl@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-12 13:38:15 +02:00
Akihiko Odaki
8af5f82b90 ui/gtk: Fix the implicit mouse ungrabbing logic
Although the grab menu item represents the tabbed displays, the old
implicit mouse ungrabbing logic changes the grab menu item even for
an untabbed display.

Leave the grab menu item when implicitly ungrabbing mouse for an
untabbed display. The new ungrabbing logic introduced in
gd_mouse_mode_change() strictly follows the corresponding grabbing
logic found in gd_button_event().

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20221008140116.11473-1-akihiko.odaki@daynix.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-12 12:46:34 +02:00
Gerd Hoffmann
0468fe82d3 pci-ids: document modern virtio-pci ids in pci.h too
While being at it add a #define for the magic 0x1040 number.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <20221004112100.301935-6-kraxel@redhat.com>
2022-10-12 12:01:11 +02:00
Gerd Hoffmann
55f01e76a3 pci-ids: drop list of modern virtio devices
Drop the list of modern virtio devices and explain how they
are calculated instead.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <20221004112100.301935-5-kraxel@redhat.com>
2022-10-12 12:01:11 +02:00
Gerd Hoffmann
cbd56573f7 pci-ids: drop PCI_DEVICE_ID_VIRTIO_PMEM
Not needed for a virtio 1.0 device.  virtio_pci_device_plugged()
overrides them anyway (so no functional change).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com>
Tested-by: Pankaj Gupta <pankaj.gupta@amd.com>
Message-Id: <20221004112100.301935-4-kraxel@redhat.com>
2022-10-12 12:01:11 +02:00
Gerd Hoffmann
58de96e2eb pci-ids: drop PCI_DEVICE_ID_VIRTIO_MEM
Not needed for a virtio 1.0 device.  virtio_pci_device_plugged()
overrides them anyway (so no functional change).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20221004112100.301935-3-kraxel@redhat.com>
2022-10-12 12:01:11 +02:00
Gerd Hoffmann
c82190fa1b pci-ids: drop PCI_DEVICE_ID_VIRTIO_IOMMU
Not needed for a virtio 1.0 device.  virtio_pci_device_plugged()
overrides them anyway (so no functional change).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <20221004112100.301935-2-kraxel@redhat.com>
2022-10-12 12:01:11 +02:00
Gerd Hoffmann
23b45173fa docs: add firmware feature flags
Add new firmware feature flags for the recently added confidential
computing operating modes by amd and intel.

While being at it also fix the path to the amd sev documentation.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Kashyap Chamarthy <kchamart@redhat.com>
Message-Id: <20220930133220.1771336-1-kraxel@redhat.com>
2022-10-12 11:02:44 +02:00
lu zhipeng
2fba4e9c49 cirrus_vga: fix potential memory overflow
Signed-off-by: lu zhipeng <luzhipeng@cestc.cn>
Message-Id: <20220929122352.1891-1-luzhipeng@cestc.cn>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-12 11:00:55 +02:00
Dongwon Kim
604a86895f ui/gtk-egl: egl context needs to be unbound in the end of gd_egl_switch
A thread often fails to bind an egl context to itself after guest VM is
rebooted because the context is still owned by another thread. It is not
very clear what condition makes this happen but this can be prevented
by unbinding the context from the thread in the end of gd_egl_switch.

Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
Message-Id: <20220928215805.4661-1-dongwon.kim@intel.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-11 15:38:08 +02:00
Mauro Matteo Cascella
d307040b18 ui/vnc-clipboard: fix integer underflow in vnc_client_cut_text_ext
Extended ClientCutText messages start with a 4-byte header. If len < 4,
an integer underflow occurs in vnc_client_cut_text_ext. The result is
used to decompress data in a while loop in inflate_buffer, leading to
CPU consumption and denial of service. Prevent this by checking dlen in
protocol_client_msg.

Fixes: CVE-2022-3165
Fixes: 0bf41cab93 ("ui/vnc: clipboard support")
Reported-by: TangPeng <tangpeng@qianxin.com>
Signed-off-by: Mauro Matteo Cascella <mcascell@redhat.com>
Message-Id: <20220925204511.1103214-1-mcascell@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-11 15:30:27 +02:00
Volker Rümelin
b6d93282cc audio: prevent an integer overflow in resampling code
There are corner cases where rate->opos can overflow. For
example, if QEMU is started with -audiodev pa,id=audio0,
out.frequency=11025 -device ich9-intel-hda -device hda-duplex,
audiodev=audio0 and the guest plays audio with a sampling
frequency of 44100Hz, rate->opos will overflow after 27.05h
and the audio stream will be silent for a long time.

To prevent a rate->opos and also a rate->ipos overflow, both
are wrapped around after a short time. The wrap around point
rate->ipos >= 0x10001 is an arbitrarily selected value and can
be any small value, 0 and 1 included.

The comment that an ipos overflow will result in an infinite
loop has been removed, because in this case the resampling code
only generates no more output samples and the audio stream stalls.
However, there is no infinite loop.

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Message-Id: <20220923183640.8314-12-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-11 10:17:08 +02:00
Volker Rümelin
b73ef11ff6 audio: fix sw->buf size for audio recording
The calculation of the buffer size needed to store audio samples
after resampling is wrong for audio recording. For audio recording
sw->ratio is calculated as

sw->ratio = frontend sample rate / backend sample rate.

From this follows

frontend samples = frontend sample rate / backend sample rate
 * backend samples
frontend samples = sw->ratio * backend samples

In 2 of 3 places in the audio recording code where sw->ratio
is used in a calculation to get the number of frontend frames,
the calculation is wrong. Fix this. The 3rd formula in
audio_pcm_sw_read() is correct.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/71
Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220923183640.8314-11-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-11 10:17:08 +02:00
Volker Rümelin
0724c57988 audio: refactor audio_get_avail()
Split out the code in audio_get_avail() that calculates the
buffer size that the audio frontend can read. This is similar
to the code changes in audio_get_free().

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220923183640.8314-10-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-11 10:17:08 +02:00
Volker Rümelin
c4e592647e audio: rename audio_sw_bytes_free()
Rename and refactor audio_sw_bytes_free(). This function is not
limited to calculate the free audio buffer size. The renamed
function returns the number of frames instead of bytes.

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220923183640.8314-9-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-11 10:17:08 +02:00
Volker Rümelin
613fe02b2a audio: swap audio_rate_get_bytes() function parameters
Swap the rate and info parameters of the audio_rate_get_bytes()
function to align the parameter order with the rest of the
audio_rate_*() functions.

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220923183640.8314-8-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-11 10:17:08 +02:00
Volker Rümelin
70ded68b45 spiceaudio: update comment
Replace a comment with a question with the answer.

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220923183640.8314-7-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-11 10:17:08 +02:00
Volker Rümelin
90320051ea spiceaudio: add a pcm_ops buffer_get_free function
It seems there is a demand [1] for low latency playback over
SPICE. Add a pcm_ops buffer_get_free function to reduce the
playback latency. The mixing engine buffer becomes a temporary
buffer.

[1] https://lists.nongnu.org/archive/html/qemu-devel/2022-01/msg01644.html

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220923183640.8314-6-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-11 10:17:08 +02:00
Volker Rümelin
02732641c0 audio: add more audio rate control functions
The next patch needs two new rate control functions. The first
one returns the bytes needed at call time to maintain the
selected rate. The second one adjusts the bytes actually sent.

Split the audio_rate_get_bytes() function into these two
functions and reintroduce audio_rate_get_bytes().

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220923183640.8314-5-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-11 10:17:08 +02:00
Volker Rümelin
5a9d7ae251 alsaaudio: reduce playback latency
Change the buffer_get_free pcm_ops function to report the free
ALSA playback buffer. The generic buffer becomes a temporary
buffer and is empty after a call to audio_run_out().

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220923183640.8314-4-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-11 10:17:08 +02:00
Volker Rümelin
dd052dbfbf audio: run downstream playback queue unconditionally
Run the downstream playback queue even if the emulated audio
device didn't write new samples. There still may be buffered
audio samples downstream.

This is for the -audiodev out.mixing-engine=off case. Commit
a8a98cfd42 ("audio: run downstream playback queue uncondition-
ally") fixed the out.mixing-engine=on case.

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220923183640.8314-3-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-11 10:17:08 +02:00
Volker Rümelin
7099a6a220 audio: fix GUS audio playback with out.mixing-engine=off
Fix GUS audio playback with out.mixing-engine=off.

The GUS audio device needs to know the amount of samples to
produce in advance.

To reproduce start qemu with
-parallel none -device gus,audiodev=audio0
-audiodev pa,id=audio0,out.mixing-engine=off

and start the cartoon.exe demo in a FreeDOS guest. The demo file
is available on the download page of the GUSemu32 author.

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220923183640.8314-2-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-11 10:17:08 +02:00
Volker Rümelin
4d31ff32a6 audio: refactor code in audio_run_out()
Refactoring the code in audio_run_out() avoids code duplication
in the next patch. There's no functional change.

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220923183640.8314-1-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-10-11 10:17:08 +02:00
Stefan Hajnoczi
f1d33f55c4 testing, gdbstub, plugin and gitdm updates
- cleanup scripts/ci/setup in advance of ppc64 runner
   - ensure detected gdb reported to TCG tests
   - update hexagon container with build deps
   - move alpine container to tagged release
   - fix overflow during qos-test test tree iteration
   - allow bios blobs to be built with test cross compilers
   - introduce monitor_puts for plain strings
   - share disas code between monitor and plugins
   - fix bug in execlog plugin
   - add more tcg plugin documentation, reorg
   - fix link to semihosting spec
   - re-factor gdbstub to use AccelClass/Ops
   - many gitdm updates
   - fix race with plugin mutex lock and linux-user fork()
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Merge tag 'pull-testing-gdbstub-plugins-gitdm-061022-3' of https://github.com/stsquad/qemu into staging

testing, gdbstub, plugin and gitdm updates

  - cleanup scripts/ci/setup in advance of ppc64 runner
  - ensure detected gdb reported to TCG tests
  - update hexagon container with build deps
  - move alpine container to tagged release
  - fix overflow during qos-test test tree iteration
  - allow bios blobs to be built with test cross compilers
  - introduce monitor_puts for plain strings
  - share disas code between monitor and plugins
  - fix bug in execlog plugin
  - add more tcg plugin documentation, reorg
  - fix link to semihosting spec
  - re-factor gdbstub to use AccelClass/Ops
  - many gitdm updates
  - fix race with plugin mutex lock and linux-user fork()

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# gpg: Signature made Thu 06 Oct 2022 06:54:30 EDT
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* tag 'pull-testing-gdbstub-plugins-gitdm-061022-3' of https://github.com/stsquad/qemu: (52 commits)
  plugins: add [pre|post]fork helpers to linux-user
  contrib/gitdm: add Université Grenoble Alpes
  contrib/gitdm: add Simon to individual contributors
  contrib/gitdm: add China Telecom to the domain map
  contrib/gitdm: add ISCAS to the academics group
  contrib/gitdm: add WANG Xuerui to individual contributers
  contrib/gitdm: add Paul to individual contributors
  contrib/gitdm: add mapping for Loongson Technology
  accel/kvm: move kvm_update_guest_debug to inline stub
  gdbstub: move guest debug support check to ops
  gdbstub: move breakpoint logic to accel ops
  gdbstub: move sstep flags probing into AccelClass
  gdbstub: move into its own sub directory
  semihosting: update link to spec
  docs/devel: document the test plugins
  contrib/plugins: reset skip when matching in execlog
  docs/devel: move API to end of tcg-plugins.rst
  docs/devel: clean-up qemu invocations in tcg-plugins
  plugins: Assert mmu_idx in range before use in qemu_plugin_get_hwaddr
  plugins: extend execlog to filter matches
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2022-10-06 07:11:56 -04:00
Alex Bennée
f7e15affa8 plugins: add [pre|post]fork helpers to linux-user
Special care needs to be taken in ensuring locks are in a consistent
state across fork events. Add helpers so the plugin system can ensure
that.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Fixes: https://gitlab.com/qemu-project/qemu/-/issues/358
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Tested-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20221004115221.2174499-1-alex.bennee@linaro.org>
2022-10-06 11:53:41 +01:00
Alex Bennée
37e62694e4 contrib/gitdm: add Université Grenoble Alpes
again to the academic group map.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Frédéric Pétrot <frederic.petrot@univ-grenoble-alpes.fr>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220926134609.3301945-7-alex.bennee@linaro.org>
2022-10-06 11:53:41 +01:00
Alex Bennée
15fe7182fb contrib/gitdm: add Simon to individual contributors
Please confirm this is the correct mapping for you.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Simon Safar <simon@simonsafar.com>
Message-Id: <20220926134609.3301945-2-alex.bennee@linaro.org>
2022-10-06 11:53:41 +01:00
Alex Bennée
fd0ddd22b8 contrib/gitdm: add China Telecom to the domain map
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
Message-Id: <20220929114231.583801-52-alex.bennee@linaro.org>
2022-10-06 11:53:41 +01:00
Alex Bennée
effc4015c7 contrib/gitdm: add ISCAS to the academics group
The English website (http://english.is.cas.cn/) in on a slightly
different domain but has the same logo as http://www.iscas.ac.cn/.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Message-Id: <20220929114231.583801-51-alex.bennee@linaro.org>
2022-10-06 11:53:41 +01:00
Alex Bennée
9c86422df6 contrib/gitdm: add WANG Xuerui to individual contributers
His blog confirms he is not affiliated with Loongson.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: WANG Xuerui <git@xen0n.name>
Message-Id: <20220929114231.583801-50-alex.bennee@linaro.org>
2022-10-06 11:53:41 +01:00
Alex Bennée
13b2918fdd contrib/gitdm: add Paul to individual contributors
Also map his old codesourcery address to his canonical address.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Paul Brook <paul@nowt.org>
Message-Id: <20220929114231.583801-49-alex.bennee@linaro.org>
2022-10-06 11:53:41 +01:00
Alex Bennée
bc093f8b1a contrib/gitdm: add mapping for Loongson Technology
Please confirm you are happy with this mapping.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20220929114231.583801-48-alex.bennee@linaro.org>
2022-10-06 11:53:41 +01:00
Alex Bennée
c7f1c53735 accel/kvm: move kvm_update_guest_debug to inline stub
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220929114231.583801-47-alex.bennee@linaro.org>
2022-10-06 11:53:41 +01:00
Alex Bennée
a48e7d9e52 gdbstub: move guest debug support check to ops
This removes the final hard coding of kvm_enabled() in gdbstub and
moves the check to an AccelOps.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Mads Ynddal <mads@ynddal.dk>
Message-Id: <20220929114231.583801-46-alex.bennee@linaro.org>
2022-10-06 11:53:41 +01:00
Alex Bennée
ae7467b1ac gdbstub: move breakpoint logic to accel ops
As HW virtualization requires specific support to handle breakpoints
lets push out special casing out of the core gdbstub code and into
AccelOpsClass. This will make it easier to add other accelerator
support and reduces some of the stub shenanigans.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Mads Ynddal <mads@ynddal.dk>
Message-Id: <20220929114231.583801-45-alex.bennee@linaro.org>
2022-10-06 11:53:41 +01:00
Alex Bennée
3b7a93880a gdbstub: move sstep flags probing into AccelClass
The support of single-stepping is very much dependent on support from
the accelerator we are using. To avoid special casing in gdbstub move
the probing out to an AccelClass function so future accelerators can
put their code there.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Mads Ynddal <mads@ynddal.dk>
Message-Id: <20220929114231.583801-44-alex.bennee@linaro.org>
2022-10-06 11:53:41 +01:00
Alex Bennée
842b42df2b gdbstub: move into its own sub directory
This is in preparation of future refactoring as well as cleaning up
the source tree. Aside from the minor tweaks to meson and trace.h this
is pure code motion.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220929114231.583801-43-alex.bennee@linaro.org>
2022-10-06 11:53:41 +01:00
Alex Bennée
424d5ecf52 semihosting: update link to spec
The old link has moved but it seems the document is now hosted on
Arm's github along with a license update to CC-BY-SA-4.0.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220929114231.583801-42-alex.bennee@linaro.org>
2022-10-06 11:53:41 +01:00
Alex Bennée
59195c6558 docs/devel: document the test plugins
Although the test plugins are fairly basic they are still useful for
some things so we should document their existence.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220929114231.583801-41-alex.bennee@linaro.org>
2022-10-06 11:53:40 +01:00
Alex Bennée
8c1f1020d6 contrib/plugins: reset skip when matching in execlog
The purpose of the matches was to only track the execution of
instructions we care about. Without resetting skip to the value at the
start of the block we end up dumping all instructions after the match
with the consequent load on the instrumentation.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Alexandre Iooss <erdnaxe@crans.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220929114231.583801-40-alex.bennee@linaro.org>
2022-10-06 11:53:40 +01:00
Alex Bennée
7f522743df docs/devel: move API to end of tcg-plugins.rst
The API documentation is quite dry and doesn't flow nicely with the
rest of the document. Move it to its own section at the bottom along
with a little leader text to remind people to update it.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220929114231.583801-39-alex.bennee@linaro.org>
2022-10-06 11:53:40 +01:00
Alex Bennée
1d0603a990 docs/devel: clean-up qemu invocations in tcg-plugins
We currently have the final binaries in the root of the build dir so
the build prefix is superfluous. Additionally add a shell prompt to be
more in line with the rest of the code.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220929114231.583801-38-alex.bennee@linaro.org>
2022-10-06 11:53:40 +01:00
Richard Henderson
5413c37f3b plugins: Assert mmu_idx in range before use in qemu_plugin_get_hwaddr
Coverity reports out-of-bound accesses here.  This should be a
false positive due to how the index is decoded from MemOpIdx.

Fixes: Coverity CID 1487201
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Damien Hedde <damien.hedde@greensocs.com>
Message-Id: <20220401190233.329360-1-richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220929114231.583801-37-alex.bennee@linaro.org>
2022-10-06 11:53:40 +01:00
Alex Bennée
b7855bf65f plugins: extend execlog to filter matches
Sometimes the whole execlog is just two much so add the ability to
filter by instruction opcode or address.

[AJB: this shows for example

 qemu-system-aarch64 -display none -serial mon:stdio \
   -M virt -cpu max \
   -semihosting-config enable=on \
   -kernel ./tests/tcg/aarch64-softmmu/memory-sve \
   -plugin ./contrib/plugins/libexeclog.so,ifilter=st1w,afilter=0x40001808 -d plugin -D plugin.out

the st1w SVE instruction is not instrumenting its stores.]

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alexandre Iooss <erdnaxe@crans.org>
Cc: Robert Henry <robhenry@microsoft.com>
Cc: Aaron Lindsay <aaron@os.amperecomputing.com>
Message-Id: <20220929114231.583801-36-alex.bennee@linaro.org>
2022-10-06 11:53:40 +01:00
Alex Bennée
90bbf9d9db disas: use result of ->read_memory_func
This gets especially confusing if you start plugging in host addresses
from a trace and you wonder why the output keeps changing. Report when
read_memory_func fails instead of blindly disassembling the buffer
contents.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220929114231.583801-35-alex.bennee@linaro.org>
2022-10-06 11:53:40 +01:00
Alex Bennée
4332099f0e disas: generalise plugin_printf and use for monitor_disas
Rather than assembling our output piecemeal lets use the same approach
as the plugin disas interface to build the disassembly string before
printing it.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220929114231.583801-34-alex.bennee@linaro.org>
2022-10-06 11:53:40 +01:00
Alex Bennée
bf0c50d4aa monitor: expose monitor_puts to rest of code
This helps us construct strings elsewhere before echoing to the
monitor. It avoids having to jump through hoops like:

  monitor_printf(mon, "%s", s->str);

It will be useful in following patches but for now convert all
existing plain "%s" printfs to use the _puts api.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220929114231.583801-33-alex.bennee@linaro.org>
2022-10-06 11:53:40 +01:00
Paolo Bonzini
3cc70a9994 pc-bios/vof: Adopt meson style Make output
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220929114231.583801-32-alex.bennee@linaro.org>
2022-10-06 11:53:40 +01:00
Paolo Bonzini
b5fc8458ff pc-bios/s390-ccw: Adopt meson style Make output
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220929114231.583801-31-alex.bennee@linaro.org>
2022-10-06 11:53:40 +01:00
Paolo Bonzini
f9236995b3 pc-bios/optionrom: Adopt meson style Make output
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220929114231.583801-30-alex.bennee@linaro.org>
2022-10-06 11:53:40 +01:00