Commit Graph

93189 Commits

Author SHA1 Message Date
Hanna Reitz
113b727ce7 block/io: Update BSC only if want_zero is true
We update the block-status cache whenever we get new information from a
bdrv_co_block_status() call to the block driver.  However, if we have
passed want_zero=false to that call, it may flag areas containing zeroes
as data, and so we would update the block-status cache with wrong
information.

Therefore, we should not update the cache with want_zero=false.

Reported-by: Nir Soffer <nsoffer@redhat.com>
Fixes: 0bc329fbb0 ("block: block-status cache for data regions")
Reviewed-by: Nir Soffer <nsoffer@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220118170000.49423-2-hreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2022-01-28 16:52:40 -06:00
Philippe Mathieu-Daude
3a8fa0edd1 qapi/block: Cosmetic change in BlockExportType schema
Fix long line introduced in commit bb01ea7311 ("qapi/block:
Restrict vhost-user-blk to CONFIG_VHOST_USER_BLK_SERVER").

Suggested-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220119121439.214821-1-f4bug@amsat.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2022-01-28 16:50:43 -06:00
Nir Soffer
523f5a9971 nbd/server.c: Remove unused field
NBDRequestData struct has unused QSIMPLEQ_ENTRY field. It seems that
this field exists since the first git commit and was never used.

Signed-off-by: Nir Soffer <nsoffer@redhat.com>
Message-Id: <20220111194313.581486-1-nsoffer@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Fixes: d9a73806 ("qemu-nbd: introduce NBDRequest", v1.1)
Signed-off-by: Eric Blake <eblake@redhat.com>
2022-01-28 16:48:28 -06:00
Peter Maydell
7a1043cef9 * configure and meson fixes
* "meson test" switch for iotests
 * deprecation of old SGX QAPI
 * unexport InterruptStatsProviderClass-related functions
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Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging

* configure and meson fixes
* "meson test" switch for iotests
* deprecation of old SGX QAPI
* unexport InterruptStatsProviderClass-related functions

# gpg: Signature made Fri 28 Jan 2022 10:13:36 GMT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini-gitlab/tags/for-upstream:
  configure: fix parameter expansion of --cross-cc-cflags options
  qapi: Cleanup SGX related comments and restore @section-size
  check-block: replace -makecheck with TAP output
  qemu-iotests: require at least an argument to check-block.sh
  build: make check-block a meson test
  scripts/mtest2make: add support for SPEED=thorough
  check-block.sh: passthrough -jN flag of make to -j N flag of check
  meson: Use find_program() to resolve the entitlement.sh script
  exec/cpu: Make host pages variables / macros 'target agnostic'
  meson.build: Use a function from libfdt 1.5.1 for the library check
  intc: Unexport InterruptStatsProviderClass-related functions
  docker: add msitools to Fedora/mingw cross
  build-sys: fix undefined ARCH error
  build-sys: fix a meson deprecation warning

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-01-28 14:04:01 +00:00
Peter Maydell
b367db4812 Xen patches
- bug fixes for mapcache and ioreq handling
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Merge remote-tracking branch 'remotes/aperard/tags/pull-xen-20220127' into staging

Xen patches

- bug fixes for mapcache and ioreq handling

# gpg: Signature made Thu 27 Jan 2022 15:17:22 GMT
# gpg:                using RSA key F80C006308E22CFD8A92E7980CF5572FD7FB55AF
# gpg: Good signature from "Anthony PERARD <anthony.perard@gmail.com>" [unknown]
# gpg:                 aka "Anthony PERARD <anthony.perard@citrix.com>" [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: 5379 2F71 024C 600F 778A  7161 D8D5 7199 DF83 42C8
#      Subkey fingerprint: F80C 0063 08E2 2CFD 8A92  E798 0CF5 572F D7FB 55AF

* remotes/aperard/tags/pull-xen-20220127:
  xen-mapcache: Avoid entry->lock overflow
  xen-hvm: Allow disabling buffer_io_timer

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-01-28 11:05:29 +00:00
Matheus Ferst
479ca4ccd5 configure: fix parameter expansion of --cross-cc-cflags options
Without this fix, any use of --cross-cc-cflags-* causes a message like:
$ ../configure --cross-cc-ppc64le=clang --cross-cc-cflags-ppc64le="-target powerpc64le-unknown-linux-gnu -sysroot ..."
../configure: 1: eval: cross_cc_cflags_--cross-cc-cflags-ppc64le=-target: not found
../configure: 3816: export: cross_cc_cflags_--cross-cc-cflags-ppc64le: bad variable name

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20220120173142.2755077-1-matheus.ferst@eldorado.org.br>
[Fix other occurrences too, noted by Philippe Mathieu-Daudé. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 11:13:33 +01:00
Yang Zhong
a66bd91f03 qapi: Cleanup SGX related comments and restore @section-size
The SGX NUMA patches were merged into Qemu 7.0 release, we need
clarify detailed version history information and also change
some related comments, which make SGX related comments clearer.

The QMP command schema promises backwards compatibility as standard.
We temporarily restore "@section-size", which can avoid incompatible
API breakage. The "@section-size" will be deprecated in 7.2 version.

Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Yang Zhong <yang.zhong@intel.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220120223104.437161-1-yang.zhong@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 11:13:33 +01:00
Paolo Bonzini
d316859f4e check-block: replace -makecheck with TAP output
Let "meson test" take care of showing the results of the individual tests,
consistently with other output from "make check V=1".

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 11:13:33 +01:00
Paolo Bonzini
18c1cdd21d qemu-iotests: require at least an argument to check-block.sh
This is anyway how check-block.sh is used in practice, and by removing the
list of formats in the script we avoid duplication between meson.build
and check-block.sh.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 11:13:33 +01:00
Paolo Bonzini
98487b9035 build: make check-block a meson test
"meson test" can be asked to run tests verbosely; this makes it usable
also for qemu-iotests's own harness, and it lets "make check-block"
reuse mtest2make.py's infrastructure to find and build test dependencies.

Adjust check-block.sh to use the standard exit code that reports a test
as skipped.  Alternatively, in the future we could make it produce TAP
output, which is consistent with all other "make check" tests.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 11:13:33 +01:00
Paolo Bonzini
3e233e2917 scripts/mtest2make: add support for SPEED=thorough
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 11:13:33 +01:00
Vladimir Sementsov-Ogievskiy
bcda7b178f check-block.sh: passthrough -jN flag of make to -j N flag of check
This improves performance of running iotests during "make -jN check".

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211223183933.1497037-1-vsementsov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 11:13:33 +01:00
Philippe Mathieu-Daudé
235b523dba meson: Use find_program() to resolve the entitlement.sh script
Using ../configure without any particular option generates 31 targets
on Darwin, and meson search for the entitlement.sh script 31 times:

  Program nm found: YES
  Program scripts/undefsym.py found: YES (/opt/homebrew/opt/python@3.9/bin/python3.9 /Code/qemu/scripts/undefsym.py)
  Program scripts/feature_to_c.sh found: YES (/bin/sh /Code/qemu/scripts/feature_to_c.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Program scripts/entitlement.sh found: YES (/Code/qemu/scripts/entitlement.sh)
  Configuring 50-edk2-i386-secure.json using configuration
  Configuring 50-edk2-x86_64-secure.json using configuration

Use find_program() which seems to cache the script path once found.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220122002052.83745-1-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-28 11:13:31 +01:00
Peter Maydell
cfe63e46be QAPI patches patches for 2022-01-27
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Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2022-01-27-v2' into staging

QAPI patches patches for 2022-01-27

# gpg: Signature made Thu 27 Jan 2022 14:19:51 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

* remotes/armbru/tags/pull-qapi-2022-01-27-v2:
  qapi: generate trace events by default
  meson: document why we don't generate trace events for tests/ and qga/
  docs/qapi-code-gen: update to cover trace events code generation
  meson: generate trace events for qmp commands
  qapi/commands: Optionally generate trace for QMP commands
  qapi/commands: refactor error handling code
  qapi/gen: Add FOO.trace-events output module
  schemas: add missing vim modeline

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-01-27 15:45:13 +00:00
Ross Lagerwall
a021a2dd8b xen-mapcache: Avoid entry->lock overflow
In some cases, a particular mapcache entry may be mapped 256 times
causing the lock field to wrap to 0. For example, this may happen when
using emulated NVME and the guest submits a large scatter-gather write.
At this point, the entry map be remapped causing QEMU to write the wrong
data or crash (since remap is not atomic).

Avoid this overflow by increasing the lock field to a uint32_t and also
detect it and abort rather than continuing regardless.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Message-Id: <20220124104450.152481-1-ross.lagerwall@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2022-01-27 15:14:21 +00:00
Jason Andryuk
9288e803e6 xen-hvm: Allow disabling buffer_io_timer
commit f37f29d314 "xen: slightly simplify bufioreq handling" hard
coded setting req.count = 1 during initial field setup before the main
loop.  This missed a subtlety that an early exit from the loop when
there are no ioreqs to process, would have req.count == 0 for the return
value.  handle_buffered_io() would then remove state->buffered_io_timer.
Instead handle_buffered_iopage() is basically always returning true and
handle_buffered_io() always re-setting the timer.

Restore the disabling of the timer by introducing a new handled_ioreq
boolean and use as the return value.  The named variable will more
clearly show the intent of the code.

Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Message-Id: <20211210193434.75566-1-jandryuk@gmail.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2022-01-27 15:14:11 +00:00
Vladimir Sementsov-Ogievskiy
761a1a488e qapi: generate trace events by default
We don't generate trace events for tests/ and qga/ because that it is
not simple and not necessary. We have corresponding comments in both
tests/meson.build and qga/meson.build.

Still to not miss possible future qapi code generation call, and not to
forget to enable trace events generation, let's enable it by default.
So, turn option --gen-trace into opposite --no-trace-events and use new
option only in tests/ and qga/ where we already have good comments why
we don't generate trace events code.

Note that this commit enables trace-events generation for qapi-gen.py
call from tests/qapi-schema/meson.build and storage-daemon/meson.build.
Still, both are kind of noop: tests/qapi-schema/ doesn't seem to
generate any QMP command code and no .trace-events files anyway,
storage-daemon/ uses common QMP command implementations and just
generate empty .trace-events

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220126161130.3240892-8-vsementsov@virtuozzo.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2022-01-27 15:17:35 +01:00
Vladimir Sementsov-Ogievskiy
378dfa482d meson: document why we don't generate trace events for tests/ and qga/
Making trace generation work for tests/ and qga/ would involve some
Meson hackery to ensure we generate the trace-events files before
trace-tool uses them. Since we don't actually support tracing there
anyway, we bypass that problem.

Let's add corresponding comments.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20220126161130.3240892-7-vsementsov@virtuozzo.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Pasto fixed, commit message punctuation tidied up]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2022-01-27 15:17:35 +01:00
Vladimir Sementsov-Ogievskiy
ff8e4827ad docs/qapi-code-gen: update to cover trace events code generation
Previous commits enabled trace events generation for most of QAPI
generated code (except for tests/ and qga/). Let's update documentation
to illustrate it.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20220126161130.3240892-6-vsementsov@virtuozzo.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2022-01-27 15:16:28 +01:00
Philippe Mathieu-Daudé
b269a70810 exec/cpu: Make host pages variables / macros 'target agnostic'
"host" pages are related to the *host* not the *target*,
thus the qemu_host_page_size / qemu_host_page_mask variables
and the HOST_PAGE_ALIGN() / REAL_HOST_PAGE_ALIGN() macros
can be moved to "exec/cpu-common.h" which is target agnostic.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220120000836.229419-1-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-27 12:08:56 +01:00
Thomas Huth
de47b0ff40 meson.build: Use a function from libfdt 1.5.1 for the library check
The fdt version test in meson.build uses a function from libfdt v1.4.7,
but we require version 1.5.1 nowadays. Thus use a function that has
been introduced in that version instead.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/822
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220118170548.97288-1-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-27 12:08:53 +01:00
Bernhard Beschow
1206a1ec59 intc: Unexport InterruptStatsProviderClass-related functions
The functions are only used within their respective source files, so no
need for exporting.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20220116122327.73048-1-shentey@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-27 12:08:50 +01:00
Marc-André Lureau
b422da4b3f docker: add msitools to Fedora/mingw cross
That should help catch build issues/regressions with wixl.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220114084312.3725242-2-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-27 12:08:44 +01:00
Marc-André Lureau
6bee096021 build-sys: fix undefined ARCH error
../qga/meson.build:76:4: ERROR: Key ARCH is not in the dictionary.

Fixes commit 823eb013 ("configure, meson: move ARCH to meson.build")

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220114084312.3725242-1-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-27 12:08:31 +01:00
Marc-André Lureau
861aa79ad8 build-sys: fix a meson deprecation warning
WARNING: Deprecated features used:
 * 0.56.0: {'meson.source_root'}

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20220113162148.3621818-1-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-27 12:08:12 +01:00
Vladimir Sementsov-Ogievskiy
b83a80e831 meson: generate trace events for qmp commands
1. Use --gen-trace when generate qmp commands
2. Add corresponding .trace-events files as outputs in qapi_files
   custom target
3. Define global qapi_trace_events list of .trace-events file targets,
   to fill in trace/qapi.build and to use in trace/meson.build
4. In trace/meson.build use the new array as an additional source of
   .trace_events files to be processed

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220126161130.3240892-5-vsementsov@virtuozzo.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2022-01-27 11:26:40 +01:00
Vladimir Sementsov-Ogievskiy
bd2017bc41 qapi/commands: Optionally generate trace for QMP commands
Add trace generation disabled by default and new option --gen-trace to
enable it.  The next commit will enable it for qapi/, but not for qga/
and tests/.  Making it work for the latter two would involve some Meson
hackery to ensure we generate the trace-events files before trace-tool
uses them.  Since we don't actually support tracing there, we'll bypass
that problem.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220126161130.3240892-4-vsementsov@virtuozzo.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Superfluous #include dropped]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2022-01-27 11:25:52 +01:00
Vladimir Sementsov-Ogievskiy
167d913f34 qapi/commands: refactor error handling code
Move error_propagate() to if (err) and make "if (err)" block mandatory.
This is to simplify further commit, which will bring trace events
generation for QMP commands.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220126161130.3240892-3-vsementsov@virtuozzo.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2022-01-27 11:25:09 +01:00
Vladimir Sementsov-Ogievskiy
4e86df1732 qapi/gen: Add FOO.trace-events output module
We are going to generate trace events for QMP commands. We should
generate both trace_*() function calls and trace-events files listing
events for trace generator.

So, add an output module FOO.trace-events for each FOO schema module.

Since we're going to add trace events only to command marshallers,
make the trace-events output optional, so we don't generate so many
useless empty files.

Currently nobody set add_trace_events to True, so new functionality is
disabled. It will be enabled for QAPISchemaGenCommandVisitor
in a further commit.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220126161130.3240892-2-vsementsov@virtuozzo.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2022-01-27 11:24:18 +01:00
Victor Toso
7e7237cd2b schemas: add missing vim modeline
Similar to f7160f3218 "schemas: Add vim modeline"

Signed-off-by: Victor Toso <victortoso@redhat.com>
Message-Id: <20211220145624.52801-1-victortoso@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2022-01-27 11:20:50 +01:00
Peter Maydell
48302d4eb6 virtiofsd: Security fix
Fixes: CVE-2022-0358
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Merge remote-tracking branch 'remotes/dgilbert-gitlab/tags/pull-virtiofs-20220126' into staging

virtiofsd: Security fix

Fixes: CVE-2022-0358

# gpg: Signature made Wed 26 Jan 2022 10:46:44 GMT
# gpg:                using RSA key 45F5C71B4A0CB7FB977A9FA90516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" [full]
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A  9FA9 0516 331E BC5B FDE7

* remotes/dgilbert-gitlab/tags/pull-virtiofs-20220126:
  virtiofsd: Drop membership of all supplementary groups (CVE-2022-0358)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-01-26 10:59:50 +00:00
Vivek Goyal
449e8171f9 virtiofsd: Drop membership of all supplementary groups (CVE-2022-0358)
At the start, drop membership of all supplementary groups. This is
not required.

If we have membership of "root" supplementary group and when we switch
uid/gid using setresuid/setsgid, we still retain membership of existing
supplemntary groups. And that can allow some operations which are not
normally allowed.

For example, if root in guest creates a dir as follows.

$ mkdir -m 03777 test_dir

This sets SGID on dir as well as allows unprivileged users to write into
this dir.

And now as unprivileged user open file as follows.

$ su test
$ fd = open("test_dir/priviledge_id", O_RDWR|O_CREAT|O_EXCL, 02755);

This will create SGID set executable in test_dir/.

And that's a problem because now an unpriviliged user can execute it,
get egid=0 and get access to resources owned by "root" group. This is
privilege escalation.

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2044863
Fixes: CVE-2022-0358
Reported-by: JIETAO XIAO <shawtao1125@gmail.com>
Suggested-by: Miklos Szeredi <mszeredi@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Message-Id: <YfBGoriS38eBQrAb@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  dgilbert: Fixed missing {}'s style nit
2022-01-26 10:32:05 +00:00
Peter Maydell
aeb0ae95b7 Python patches
A few fixes to the Python CI tests, a few fixes to the (async) QMP
 library, and a set of patches that begin to shift us towards using the
 new qmp lib.
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Merge remote-tracking branch 'remotes/jsnow-gitlab/tags/python-pull-request' into staging

Python patches

A few fixes to the Python CI tests, a few fixes to the (async) QMP
library, and a set of patches that begin to shift us towards using the
new qmp lib.

# gpg: Signature made Sat 22 Jan 2022 00:07:58 GMT
# gpg:                using RSA key F9B7ABDBBCACDF95BE76CBD07DEF8106AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>" [full]
# Primary key fingerprint: FAEB 9711 A12C F475 812F  18F2 88A9 064D 1835 61EB
#      Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76  CBD0 7DEF 8106 AAFC 390E

* remotes/jsnow-gitlab/tags/python-pull-request:
  scripts/render-block-graph: switch to AQMP
  scripts/cpu-x86-uarch-abi: switch to AQMP
  scripts/cpu-x86-uarch-abi: fix CLI parsing
  python: move qmp-shell under the AQMP package
  python: move qmp utilities to python/qemu/utils
  python/qmp: switch qmp-shell to AQMP
  python/qmp: switch qom tools to AQMP
  python/qmp: switch qemu-ga-client to AQMP
  python/qemu-ga-client: don't use deprecated CLI syntax in usage comment
  python/aqmp: rename AQMPError to QMPError
  python/aqmp: add SocketAddrT to package root
  python/aqmp: copy type definitions from qmp
  python/aqmp: handle asyncio.TimeoutError on execute()
  python/aqmp: add __del__ method to legacy interface
  python/aqmp: fix docstring typo
  python: use avocado's "new" runner
  python: pin setuptools below v60.0.0

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-01-22 12:03:22 +00:00
John Snow
0590860242 scripts/render-block-graph: switch to AQMP
Creating an instance of qemu.aqmp.ExecuteError is too involved here, so
just drop the specificity down to a generic QMPError.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Beraldo Leal <bleal@redhat.com>
2022-01-21 16:01:31 -05:00
John Snow
0665410dcf scripts/cpu-x86-uarch-abi: switch to AQMP
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Beraldo Leal <bleal@redhat.com>
2022-01-21 16:01:31 -05:00
John Snow
9922125615 scripts/cpu-x86-uarch-abi: fix CLI parsing
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2022-01-21 16:01:31 -05:00
John Snow
fd9c3a6219 python: move qmp-shell under the AQMP package
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Beraldo Leal <bleal@redhat.com>
2022-01-21 16:01:31 -05:00
John Snow
0347c4c4cf python: move qmp utilities to python/qemu/utils
In order to upload a QMP package to PyPI, I want to remove any scripts
that I am not 100% confident I want to support upstream, beyond our
castle walls.

Move most of our QMP utilities into the utils package so we can split
them out from the PyPI upload.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Beraldo Leal <bleal@redhat.com>
2022-01-21 16:01:31 -05:00
John Snow
f3efd12930 python/qmp: switch qmp-shell to AQMP
We have a replacement for async QMP, but it doesn't have feature parity
yet. For now, then, port the old tool onto the new backend.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2022-01-21 16:01:31 -05:00
John Snow
8d6cdc5118 python/qmp: switch qom tools to AQMP
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Beraldo Leal <bleal@redhat.com>
2022-01-21 16:01:31 -05:00
John Snow
26db07516f python/qmp: switch qemu-ga-client to AQMP
Async QMP always raises a "ConnectError" on any connection error which
houses the cause in a second exception. We can check if this root cause
was python's ConnectionError to determine a fairly similar condition to
the original error check here.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Beraldo Leal <bleal@redhat.com>
2022-01-21 16:01:31 -05:00
John Snow
7017f3853a python/qemu-ga-client: don't use deprecated CLI syntax in usage comment
Cleanup related to commit ccd3b3b811, "qemu-option: warn for
short-form boolean options".

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2022-01-21 16:01:31 -05:00
John Snow
6e7751dc38 python/aqmp: rename AQMPError to QMPError
This is in preparation for renaming qemu.aqmp to qemu.qmp. I should have
done this from this from the very beginning, but it's a convenient time
to make sure this churn is taken care of.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2022-01-21 16:01:31 -05:00
John Snow
728dcac5e3 python/aqmp: add SocketAddrT to package root
It's a commonly needed definition, it can be re-exported by the root.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Beraldo Leal <bleal@redhat.com>
2022-01-21 16:01:31 -05:00
John Snow
0e6bfd8b96 python/aqmp: copy type definitions from qmp
Copy the remaining type definitions from QMP into the qemu.aqmp.legacy
module. Now, users that require the legacy interface don't need to
import anything else but qemu.aqmp.legacy wrapper.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Beraldo Leal <bleal@redhat.com>
2022-01-21 16:01:31 -05:00
John Snow
3b5bf136f5 python/aqmp: handle asyncio.TimeoutError on execute()
This exception can be injected into any await statement. If we are
canceled via timeout, we want to clear the pending execution record on
our way out.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Beraldo Leal <bleal@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2022-01-21 16:01:31 -05:00
John Snow
3bc72e3aed python/aqmp: add __del__ method to legacy interface
asyncio can complain *very* loudly if you forget to back out of things
gracefully before the garbage collector starts destroying objects that
contain live references to asyncio Tasks.

The usual fix is just to remember to call aqmp.disconnect(), but for the
sake of the legacy wrapper and quick, one-off scripts where a graceful
shutdown is not necessarily of paramount imporance, add a courtesy
cleanup that will trigger prior to seeing screenfuls of confusing
asyncio tracebacks.

Note that we can't *always* save you from yourself; depending on when
the GC runs, you might just seriously be out of luck. The best we can do
in this case is to gently remind you to clean up after yourself.

(Still much better than multiple pages of incomprehensible python
warnings for the crime of forgetting to put your toys away.)

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Beraldo Leal <bleal@redhat.com>
2022-01-21 16:01:31 -05:00
John Snow
dc6877bd2e python/aqmp: fix docstring typo
Reported-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Beraldo Leal <bleal@redhat.com>
2022-01-21 16:01:31 -05:00
John Snow
57a6b4478c python: use avocado's "new" runner
The old legacy runner no longer seems to work with output logging, so we
can't see failure logs when a test case fails. The new runner doesn't
(seem to) support Coverage.py yet, but seeing error output is a more
important feature.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Beraldo Leal <bleal@redhat.com>
Message-id: 20220119193916.4138217-3-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2022-01-21 16:01:13 -05:00
John Snow
1e4d8b31be python: pin setuptools below v60.0.0
setuptools is a package that replaces the python stdlib 'distutils'. It
is generally installed by all venv-creating tools "by default". It isn't
actually needed at runtime for the qemu package, so our own setup.cfg
does not mention it as a dependency.

However, tox will create virtual environments that include it, and will
upgrade it to the very latest version. the 'venv' tool will also include
whichever version your host system happens to have.

Unfortunately, setuptools version 60.0.0 and above include a hack to
forcibly overwrite python's built-in distutils. The pylint tool that we
use to run code analysis checks on this package relies on distutils and
suffers regressions when setuptools >= 60.0.0 is present at all, see
https://github.com/PyCQA/pylint/issues/5704

Instruct tox and the 'check-dev' targets to avoid setuptools packages
that are too new, for now. Pipenv is unaffected, because setuptools 60
does not offer Python 3.6 support, and our pipenv config is pinned
against Python 3.6.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Beraldo Leal <bleal@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Tested-by: Cleber Rosa <crosa@redhat.com>
Message-id: 20220121005221.142236-1-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2022-01-21 16:01:09 -05:00