Commit Graph

116296 Commits

Author SHA1 Message Date
Alejandro Zeise
4fd0a730d7 crypto/hash-gcrypt: Implement new hash API
Implements the new hashing API in the gcrypt hash driver.
Supports creating/destroying a context, updating the context
with input data and obtaining an output hash.

Signed-off-by: Alejandro Zeise <alejandro.zeise@seagate.com>
[ clg: - Dropped qcrypto_hash_supports() in qcrypto_gcrypt_hash_new()
       - Reworked qcrypto_gcrypt_hash_finalize()
       - Handled gcry_md_open() errors in qcrypto_gcrypt_hash_new()
       - Checkpatch fixes ]
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2024-10-10 12:33:14 +01:00
Alejandro Zeise
c6ccd2af60 crypto/hash-glib: Implement new hash API
Implements the new hashing API in the GLib hash driver.
Supports creating/destroying a context, updating the context
with input data and obtaining an output hash.

Signed-off-by: Alejandro Zeise <alejandro.zeise@seagate.com>
[ clg: - Dropped qcrypto_hash_supports() in qcrypto_glib_hash_new()
       - Removed superfluous cast (GChecksum *) in qcrypto_glib_hash_free()
       - Reworked qcrypto_glib_hash_finalize() ]
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2024-10-10 12:33:08 +01:00
Alejandro Zeise
190feb4884 crypto: accumulative hashing API
Changes the hash API to support accumulative hashing.
Hash objects are created with "qcrypto_hash_new",
updated with data with "qcrypto_hash_update", and
the hash obtained with "qcrypto_hash_finalize".

These changes bring the hashing API more in line with the
hmac API.

Signed-off-by: Alejandro Zeise <alejandro.zeise@seagate.com>
[ clg: - Changed documentation "non-zero on error" -> "-1 on error" ]
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2024-10-10 12:32:59 +01:00
Peter Maydell
05adb38839 Migration pull request
- Ani's patch to complete the memory API on coalesced IO / eventfd notifies
 - Fabiano's Coverity fix on using pstrcpy() over strncpy()
 - Dave's series on removing/deprecating zero-blocks and uffd cleanups
 - Juraj's one more fix on multifd/cancel test where it can fail when
   cancellation happens too slow on src
 - Dave's one more remove deadcode patch in iova-tree.c
 - Yuan's build fix for multifd qpl compressor
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Merge tag 'migration-20241009-pull-request' of https://gitlab.com/peterx/qemu into staging

Migration pull request

- Ani's patch to complete the memory API on coalesced IO / eventfd notifies
- Fabiano's Coverity fix on using pstrcpy() over strncpy()
- Dave's series on removing/deprecating zero-blocks and uffd cleanups
- Juraj's one more fix on multifd/cancel test where it can fail when
  cancellation happens too slow on src
- Dave's one more remove deadcode patch in iova-tree.c
- Yuan's build fix for multifd qpl compressor

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# gpg:                issuer "peterx@redhat.com"
# gpg: Good signature from "Peter Xu <xzpeter@gmail.com>" [marginal]
# gpg:                 aka "Peter Xu <peterx@redhat.com>" [marginal]
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# gpg:          It is not certain that the signature belongs to the owner.
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* tag 'migration-20241009-pull-request' of https://gitlab.com/peterx/qemu:
  migration/multifd: fix build error when qpl compression is enabled
  util/iova-tree: Remove deadcode
  tests/migration-test: Wait for cancellation sooner in multifd cancel
  util/userfaultfd: Remove unused uffd_poll_events
  migration/postcopy: Use uffd helpers
  util/userfaultfd: Return -errno on error
  migration: Remove unused socket_send_channel_create_sync
  migration: Deprecate zero-blocks capability
  migration: Remove unused migrate_zero_blocks
  migration: Remove migrate_cap_set
  migration/multifd: Ensure packet->ramblock is null-terminated
  memory: notify hypervisor of all eventfds during listener (de)registration

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-10-09 20:12:11 +01:00
Peter Maydell
838fc0a876 chardev: introduce 'reconnect-ms' and deprecate 'reconnect'
chardev: add path option for pty backend
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Merge tag 'chr-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging

chardev: introduce 'reconnect-ms' and deprecate 'reconnect'
chardev: add path option for pty backend

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* tag 'chr-pull-request' of https://gitlab.com/marcandre.lureau/qemu:
  chardev: add path option for pty backend
  chardev: introduce 'reconnect-ms' and deprecate 'reconnect'

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-10-09 15:06:56 +01:00
Peter Maydell
54cdddc6dc linux-user: Fix parse_elf_properties GNU0_MAGIC check
linux-user: Various improvements to strace
 linux-user: Add openat2 support
 linux-user/flatload: Take mmap_lock in load_flt_binary()
 accel/tcg: Make page_set_flags() documentation public
 tcg/ppc: Use TCG_REG_TMP2 for scratch tcg_out_qemu_st
 tcg/ppc: Use TCG_REG_TMP2 for scratch index in prepare_host_addr
 target/m68k: Always return a temporary from gen_lea_mode
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Merge tag 'pull-tcg-20241008' of https://gitlab.com/rth7680/qemu into staging

linux-user: Fix parse_elf_properties GNU0_MAGIC check
linux-user: Various improvements to strace
linux-user: Add openat2 support
linux-user/flatload: Take mmap_lock in load_flt_binary()
accel/tcg: Make page_set_flags() documentation public
tcg/ppc: Use TCG_REG_TMP2 for scratch tcg_out_qemu_st
tcg/ppc: Use TCG_REG_TMP2 for scratch index in prepare_host_addr
target/m68k: Always return a temporary from gen_lea_mode

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# 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-20241008' of https://gitlab.com/rth7680/qemu:
  accel/tcg: Make page_set_flags() documentation public
  target/m68k: Always return a temporary from gen_lea_mode
  tcg/ppc: Use TCG_REG_TMP2 for scratch index in prepare_host_addr
  tcg/ppc: Use TCG_REG_TMP2 for scratch tcg_out_qemu_st
  linux-user: Add strace for recvfrom()
  linux-user: Add strace for sendto()
  linux-user: Factor print_buf_len() out
  linux-user: Display sockaddr buffer as pointer
  linux-user: Correct print_sockaddr() format
  linux-user: Trace wait4()'s and waitpid()'s wstatus
  linux-user: add strace support for openat2
  linux-user: add openat2 support in linux-user
  linux-user: Fix parse_elf_properties GNU0_MAGIC check
  linux-user/flatload: Take mmap_lock in load_flt_binary()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-10-09 15:06:42 +01:00
Peter Maydell
c9beb029b5 tests/qtest: Bump qmp-cmd-test timeout to 120s
The qmp-cmd-test test takes typically about 15s on my local machine.
On the k8s runners it takes usually 20s but sometimes about 60s,
because the k8s runners have wildly variable execution time.  If
they're running slow, we hit the default timeout.  Bump the
qmp-cmd-test timeout to 120s to avoid this.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20241008141337.2790423-1-peter.maydell@linaro.org
2024-10-09 15:06:24 +01:00
Yuan Liu
2e49d6a20b migration/multifd: fix build error when qpl compression is enabled
The page_size member has been removed from the MultiFDSendParams
and MultiFDRecvParams. The function multifd_ram_page_size is used to
provide the page size in the multifd compressor.

Fixes: 90fa121c6c ("migration/multifd: Inline page_size and page_count")
Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Link: https://lore.kernel.org/r/20241008104527.3516755-1-yuan1.liu@intel.com
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-10-09 08:30:53 -04:00
Octavian Purdila
b74cb8761c chardev: add path option for pty backend
Add path option to the pty char backend which will create a symbolic
link to the given path that points to the allocated PTY.

This avoids having to make QMP or HMP monitor queries to find out what
the new PTY device path is.

Based on patch from Paulo Neves:

https://patchew.org/QEMU/1548509635-15776-1-git-send-email-ptsneves@gmail.com/

Tested with the following invocations that the link is created and
removed when qemu stops:

  qemu-system-x86_64 -nodefaults -mon chardev=compat_monitor \
  -chardev pty,path=test,id=compat_monitor0

  qemu-system-x86_64 -nodefaults -monitor pty:test

  # check QMP invocation with path set
  qemu-system-x86_64 -nodefaults -qmp tcp:localhost:4444,server=on,wait=off
  nc localhost 4444
  > {"execute": "qmp_capabilities"}
  > {"execute": "chardev-add", "arguments": {"id": "bar", "backend": {
      "type": "pty", "data": {"path": "test" }}}}

  # check QMP invocation with path not set
  qemu-system-x86_64 -nodefaults -qmp tcp:localhost:4444,server=on,wait=off
  nc localhost 4444
  > {"execute": "qmp_capabilities"}
  > {"execute": "chardev-add", "arguments": {"id": "bar", "backend": {
      "type": "pty", "data": {}}}}

Also tested that when a link path is not passed invocations still work, e.g.:

  qemu-system-x86_64 -monitor pty

Co-authored-by: Paulo Neves <ptsneves@gmail.com>
Signed-off-by: Paulo Neves <ptsneves@gmail.com>
[OP: rebase and address original patch review comments]
Signed-off-by: Octavian Purdila <tavip@google.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-ID: <20240806010735.2450555-1-tavip@google.com>
2024-10-09 12:13:05 +04:00
Daniil Tatianin
c8e2b6b4d7 chardev: introduce 'reconnect-ms' and deprecate 'reconnect'
The 'reconnect' option only allows to specify the time in seconds,
which is way too long for certain workflows.

We have a lightweight disk backend server, which takes about 20ms to
live update, but due to this limitation in QEMU, previously the guest
disk controller would hang for one second because it would take this
long for QEMU to reinitialize the socket connection.

Introduce a new option called 'reconnect-ms', which is the same as
'reconnect', except the value is treated as milliseconds. These are
mutually exclusive and specifying both results in an error.

'reconnect' is also deprecated by this commit to make it possible to
remove it in the future as to not keep two options that control the
same thing.

Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Acked-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
Acked-by: Markus Armbruster <armbru@redhat.com>
Tested-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240913094604.269135-1-d-tatianin@yandex-team.ru>
2024-10-09 12:07:54 +04:00
Dr. David Alan Gilbert
255db3ba80 util/iova-tree: Remove deadcode
iova_tree_find_address, and iova_tree_foreach have never been
used since the code was originally added by:
  eecf5eedbd ("util: implement simple iova tree")

Remove them.

Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Link: https://lore.kernel.org/r/20240918142515.153074-1-dave@treblig.org
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-10-08 15:28:55 -04:00
Juraj Marcin
9adcdd49e3 tests/migration-test: Wait for cancellation sooner in multifd cancel
The source QEMU might not finish the cancellation of the migration
before we start setting up the next attempt. During the setup, the
test_migrate_start() function and others might need to interact with the
source in a way that is not possible unless the migration is fully
canceled. For example, setting capabilities when the migration is still
running leads to an error.

By moving the wait before the setup, we ensure this does not happen.

Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Juraj Marcin <jmarcin@redhat.com>
Link: https://lore.kernel.org/r/20240920161319.2337625-1-jmarcin@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-10-08 15:28:55 -04:00
Dr. David Alan Gilbert
ccf6b78275 util/userfaultfd: Remove unused uffd_poll_events
uffd_poll_events has been unused since it was added; it's also
just a wrapper around a plain old poll call, so doesn't add anything.

Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20240919134626.166183-8-dave@treblig.org
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-10-08 15:28:55 -04:00
Dr. David Alan Gilbert
3ba55a33e8 migration/postcopy: Use uffd helpers
Use the uffd_copy_page, uffd_zero_page and uffd_wakeup helpers
rather than calling ioctl ourselves.

They return -errno on error, and print an error_report themselves.
I think this actually makes postcopy_place_page actually more
consistent in it's callers.

Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20240919134626.166183-7-dave@treblig.org
[peterx: fix i386 build]
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-10-08 15:28:55 -04:00
Dr. David Alan Gilbert
6f81bd1a3e util/userfaultfd: Return -errno on error
Convert (the currently unused) uffd_wakeup, uffd_copy_page and
uffd_zero_page to return -errno on error rather than -1.

That will make it easier to reuse in postcopy.

Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20240919134626.166183-6-dave@treblig.org
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-10-08 15:28:55 -04:00
Dr. David Alan Gilbert
6242b36102 migration: Remove unused socket_send_channel_create_sync
socket_send_channel_create_sync only use was removed by
  d0edb8a173 ("migration: Create the postcopy preempt channel asynchronously")

Remove it.

Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240919134626.166183-5-dave@treblig.org
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-10-08 15:28:55 -04:00
Fabiano Rosas
73581a041e migration: Deprecate zero-blocks capability
The zero-blocks capability was meant to be used along with the block
migration, which has been removed already in commit eef0bae3a7
("migration: Remove block migration").

Setting zero-blocks is currently a noop, but the outright removal of
the capability would cause and error in case some users are still
setting it. Put the capability through the deprecation process.

Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20240919134626.166183-4-dave@treblig.org
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-10-08 15:28:55 -04:00
Dr. David Alan Gilbert
21ed5ff606 migration: Remove unused migrate_zero_blocks
migrate_zero_blocks is unused since
  eef0bae3a7 ("migration: Remove block migration")

Remove it.

Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20240919134626.166183-3-dave@treblig.org
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-10-08 15:28:55 -04:00
Dr. David Alan Gilbert
a5d8d13842 migration: Remove migrate_cap_set
migrate_cap_set has been unused since
  18d154f575 ("migration: Remove 'blk/-b' option from migrate commands")

Remove it.

Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240919134626.166183-2-dave@treblig.org
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-10-08 15:28:55 -04:00
Fabiano Rosas
68e0fca625 migration/multifd: Ensure packet->ramblock is null-terminated
Coverity points out that the current usage of strncpy to write the
ramblock name allows the field to not have an ending '\0' in case
idstr is already not null-terminated (e.g. if it's larger than 256
bytes).

This is currently harmless because the packet->ramblock field is never
touched again on the source side. The destination side reads only up
to the field's size from the stream and forces the last byte to be 0.

We're still open to a programming error in the future in case this
field is ever passed into a function that expects a null-terminated
string.

Change from strncpy to QEMU's pstrcpy, which puts a '\0' at the end of
the string and doesn't fill the extra space with zeros.

(there's no spillage between iterations of fill_packet because after
commit 87bb9e953e ("migration/multifd: Isolate ram pages packet data")
the packet is always zeroed before filling)

Resolves: Coverity CID 1560071
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240919150611.17074-1-farosas@suse.de
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-10-08 15:28:55 -04:00
Ani Sinha
8d3031fa1b memory: notify hypervisor of all eventfds during listener (de)registration
When a new listener for an address space is registered, the hypervisor must be
informed of all existing eventfds for that address space by calling
eventfd_add() for that listener. Similarly, when a listener is de-registered
from an address space, the hypervisor must be informed of all existing eventfds
for that address space with a call to eventfd_del().

Same is also true for coalesced io. Send coalesced io add/del listener
notifications if any flatrage for the address space registered with the
listener intersects with any coalesced io range.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Ani Sinha <anisinha@redhat.com>
Link: https://lore.kernel.org/r/20240918064853.30678-1-anisinha@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-10-08 15:28:55 -04:00
Philippe Mathieu-Daudé
25f4e71722 accel/tcg: Make page_set_flags() documentation public
Commit e505a063ba ("translate-all: Add assert_(memory|tb)_lock
annotations") states page_set_flags() is "public APIs and [is]
documented as needing them held for linux-user mode".
Document the prototype.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240822095045.72643-2-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-10-08 06:40:31 -07:00
Richard Henderson
352cc9f300 target/m68k: Always return a temporary from gen_lea_mode
Returning a raw areg does not preserve the value if the areg
is subsequently modified.  Fixes, e.g. "jsr (sp)", where the
return address is pushed before the branch.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2483
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240813000737.228470-1-richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-10-08 06:40:31 -07:00
Richard Henderson
3213da7b95 tcg/ppc: Use TCG_REG_TMP2 for scratch index in prepare_host_addr
In tcg_out_qemu_ldst_i128, we need a non-zero index register,
which we then use as a base register in several address modes.
Since we always have TCG_REG_TMP2 available, use that.

Cc: qemu-stable@nongnu.org
Fixes: 526cd4ec01 ("tcg/ppc: Support 128-bit load/store")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2597
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-By: Michael Tokarev <mjt@tls.msk.ru>
2024-10-08 06:40:31 -07:00
Richard Henderson
4cabcb89b1 tcg/ppc: Use TCG_REG_TMP2 for scratch tcg_out_qemu_st
In the fallback when STDBRX is not available, avoid clobbering
TCG_REG_TMP1, which might be h.base, which is still in use.
Use TCG_REG_TMP2 instead.

Cc: qemu-stable@nongnu.org
Fixes: 01a112e2e9 ("tcg/ppc: Reorg tcg_out_tlb_read")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-By: Michael Tokarev <mjt@tls.msk.ru>
2024-10-08 06:40:13 -07:00
Philippe Mathieu-Daudé
124e769083 linux-user: Add strace for recvfrom()
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240807124306.52903-6-philmd@linaro.org>
[rth: Do not dump output buffers.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-10-08 06:31:36 -07:00
Philippe Mathieu-Daudé
ff54bcd541 linux-user: Add strace for sendto()
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-ID: <20240807124306.52903-5-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-10-08 06:31:36 -07:00
Philippe Mathieu-Daudé
57fbc9b987 linux-user: Factor print_buf_len() out
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-ID: <20240807124306.52903-4-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-10-08 06:31:36 -07:00
Philippe Mathieu-Daudé
02d9169761 linux-user: Display sockaddr buffer as pointer
Rather than 'raw param', display as pointer to get
"NULL" instead of "0x00000000".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-ID: <20240807124306.52903-3-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-10-08 06:31:36 -07:00
Philippe Mathieu-Daudé
7db3a42ef6 linux-user: Correct print_sockaddr() format
When the %addr argument can not be accessed, a double comma
is logged (the final qemu_log call prepend a comma).  Move
the comma from the final qemu_log to the preceeding switch
cases that had omitted it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240807124306.52903-2-philmd@linaro.org>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
[rth: Move comma into the various switch cases.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-10-08 06:31:36 -07:00
Ilya Leoshkevich
322bfaa2ea linux-user: Trace wait4()'s and waitpid()'s wstatus
Borrow the code for formatting the most frequent WIFEXITED() and
WIFSIGNALED() special cases from from the strace's printstatus().

Output examples:

    474729 wait4(-1,0x7f00767ff0a0,0,(nil)) = 474733 (wstatus={WIFEXITED(s) && WEXITSTATUS(s) == 1})
    475833 wait4(-1,0x7f7de61ff0a0,0,(nil)) = 475837 (wstatus={WIFSIGNALED(s) && WTERMSIG(s) == SIGKILL})
    1168 waitpid(1171,0x7f44eea00340,0) = 1171 (wstatus={WIFSIGNALED(s) && WTERMSIG(s) == SIGKILL})

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-ID: <20241001193244.14939-1-iii@linux.ibm.com>
[rth: Drop extra output for NULL wstatus or error reading.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-10-08 06:31:36 -07:00
Michael Vogt
9729930344 linux-user: add strace support for openat2
This commit adds support for the `openat2()` to `QEMU_STRACE`. It
will use the `openat2.h` header if available to create user
readable flags for the `resolve` argument but does not require
the header otherwise.

It also makes `copy_struct_from_user()` available via `qemu.h`
and `open_how_ver0` via `syscall_defs.h` so that strace.c can use
them.

Signed-off-by: Michael Vogt <mvogt@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-ID: <f02d40c7751c03af885ced6dd94e4734d4be4d8f.1727795334.git.mvogt@redhat.com>
[rth: Add braces around the expanded how structure, like strace(3)]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-10-08 06:31:36 -07:00
Michael Vogt
9651cead2f linux-user: add openat2 support in linux-user
This commit adds support for the `openat2()` syscall in the
`linux-user` userspace emulator.

It is implemented by extracting a new helper `maybe_do_fake_open()`
out of the exiting `do_guest_openat()` and share that with the
new `do_guest_openat2()`. Unfortunately we cannot just make
do_guest_openat2() a superset of do_guest_openat() because the
openat2() syscall is stricter with the argument checking and
will return an error for invalid flags or mode combinations (which
open()/openat() will ignore).

The implementation is similar to SYSCALL_DEFINE(openat2), i.e.
a new `copy_struct_from_user()` is used that works the same
as the kernels version to support backwards-compatibility
for struct syscall argument.

Instead of including openat2.h we create a copy of `open_how`
as `open_how_ver0` to ensure that if the structure grows we
can log a LOG_UNIMP warning.

Note that in this commit using openat2() for a "faked" file in
/proc will honor the "resolve" flags for
RESOLVE_NO_{MAGIC,SYM}LINKS for path based access to /proc/self/exe
(which is the only magic link we support for faked files).
Note it will not catch special access via e.g. dirfd. This is not
great but it seems similar to the exiting behavior when openat()
is called with a dirfd to "/proc". Here too the fake file lookup
may not catch the special file because no dirfd is used to
determine if the path is in /proc.

Signed-off-by: Michael Vogt <mvogt@redhat.com>
Buglink: https://github.com/osbuild/bootc-image-builder/issues/619
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-ID: <1c2c8c9db3731ed4c6fd9b10c63637c3e4caf8f5.1727795334.git.mvogt@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-10-08 06:31:36 -07:00
Richard Henderson
2884596f5f linux-user: Fix parse_elf_properties GNU0_MAGIC check
Comparing a string of 4 bytes only works in little-endian.

Adjust bulk bswap to only apply to the note payload.
Perform swapping of the note header manually; the magic
is defined so that it does not need a runtime swap.

Fixes: 83f990eb5a ("linux-user/elfload: Parse NT_GNU_PROPERTY_TYPE_0 notes")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2596
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
2024-10-08 06:31:22 -07:00
Philippe Mathieu-Daudé
a9ee641bd4 linux-user/flatload: Take mmap_lock in load_flt_binary()
load_flt_binary() calls load_flat_file() -> page_set_flags().

page_set_flags() must be called with the mmap_lock held,
otherwise it aborts:

  $ qemu-arm -L stm32/lib/ stm32/bin/busybox
  qemu-arm: ../accel/tcg/user-exec.c:505: page_set_flags: Assertion `have_mmap_lock()' failed.
  Aborted (core dumped)

Fix by taking the lock in load_flt_binary().

Fixes: fbd3c4cff6 ("linux-user/arm: Mark the commpage executable")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2525
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240822095045.72643-3-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-10-08 06:28:46 -07:00
Manos Pitsidianakis
764a6ee9fe build-sys: Add rust feature option
Add rust feature in meson.build, configure, to prepare for adding Rust
code in the followup commits.

Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Link: https://lore.kernel.org/r/14642d80fbccbc60f7aa78b449a7deb5e2784ed9.1727961605.git.manos.pitsidianakis@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-07 16:41:58 +02:00
Paolo Bonzini
07f0d32641 Require meson version 1.5.0
This is needed for Rust support.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Link: https://lore.kernel.org/r/74e1eb4b13717d061c5ad9c198bf56951fbfc14f.1727961605.git.manos.pitsidianakis@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-07 16:41:57 +02:00
Peter Maydell
2af37e7919 * Mark "gluster" support as deprecated
* Update CI to use macOS 14 instead of 13, and add a macOS 15 job
 * Use gitlab mirror for advent calendar test images (seems more stable)
 * Bump timeouts of some tests
 * Remove CRIS disassembler
 * Some m68k and s390x cleanups with regards to load and store APIs
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Merge tag 'pull-request-2024-10-07' of https://gitlab.com/thuth/qemu into staging

* Mark "gluster" support as deprecated
* Update CI to use macOS 14 instead of 13, and add a macOS 15 job
* Use gitlab mirror for advent calendar test images (seems more stable)
* Bump timeouts of some tests
* Remove CRIS disassembler
* Some m68k and s390x cleanups with regards to load and store APIs

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# gpg: Signature made Mon 07 Oct 2024 12:49:02 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-2024-10-07' of https://gitlab.com/thuth/qemu:
  tests/functional: Bump timeout of some tests
  tests/functional: Switch back to the gitlab URLs for the advent calendar tests
  target/s390x: Use explicit big-endian LD/ST API
  target/s390x: Replace ldtul_p() -> ldq_p()
  hw/s390x: Use explicit big-endian LD/ST API
  target/m68k: Use explicit big-endian LD/ST API
  hw/m68k: Use explicit big-endian LD/ST API
  gitlab-ci/build-oss-fuzz: print FAILED marker in case the test failed and run all tests
  disas: Remove CRIS disassembler
  .gitlab-ci.d/cirrus: Add manual testing of macOS 15 (Sequoia)
  .gitlab-ci.d/cirrus: Drop support for macOS 13 (Ventura)
  docs: Mark "gluster" support in QEMU as deprecated

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-10-07 12:55:02 +01:00
Thomas Huth
d841f720c9 tests/functional: Bump timeout of some tests
These tests occasionally time out when the host system is under heavy
load. Increase the timeout setting to allow for more headroom here.

Message-ID: <20241002140212.350467-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-10-07 13:21:41 +02:00
Thomas Huth
67d76bde99 tests/functional: Switch back to the gitlab URLs for the advent calendar tests
Shortly after we switched to the original URLs on qemu-advent-calendar.org,
the server went offline - looks like we are better off using the gitlab
URLs again instead.

Message-ID: <20241007083649.204886-1-thuth@redhat.com>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-10-07 12:26:14 +02:00
Philippe Mathieu-Daudé
1d94eafdb5 target/s390x: Use explicit big-endian LD/ST API
The S390X architecture uses big endianness. Directly use
the big-endian LD/ST API.

Mechanical change using:

  $ end=be; \
    for acc in uw w l q tul; do \
      sed -i -e "s/ld${acc}_p(/ld${acc}_${end}_p(/" \
             -e "s/st${acc}_p(/st${acc}_${end}_p(/" \
        $(git grep -wlE '(ld|st)t?u?[wlq]_p' target/s390x/); \
    done

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20241004163042.85922-24-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-10-07 11:33:20 +02:00
Philippe Mathieu-Daudé
a0bc3cefe2 target/s390x: Replace ldtul_p() -> ldq_p()
The S390X  target is only built for 64-bit.
Using ldtul_p() is pointless, replace by ldq_p().

Mechanical change doing:

  $ sed -i -e 's/ldtul_p/ldq_p/' $(git grep -wl ldtul_p target/s390x/)

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20241004163042.85922-5-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-10-07 11:33:20 +02:00
Philippe Mathieu-Daudé
c76c86fba5 hw/s390x: Use explicit big-endian LD/ST API
The S390X architecture uses big endianness. Directly use
the big-endian LD/ST API.

Mechanical change using:

  $ end=be; \
    for acc in uw w l q tul; do \
      sed -i -e "s/ld${acc}_p(/ld${acc}_${end}_p(/" \
             -e "s/st${acc}_p(/st${acc}_${end}_p(/" \
        $(git grep -wlE '(ld|st)t?u?[wlq]_p' hw/s390x/); \
    done

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20241004163042.85922-23-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-10-07 11:33:20 +02:00
Philippe Mathieu-Daudé
3a76d30204 target/m68k: Use explicit big-endian LD/ST API
The M68K architecture uses big endianness. Directly use
the big-endian LD/ST API.

Mechanical change using:

  $ end=be; \
    for acc in uw w l q tul; do \
      sed -i -e "s/ld${acc}_p(/ld${acc}_${end}_p(/" \
             -e "s/st${acc}_p(/st${acc}_${end}_p(/" \
        $(git grep -wlE '(ld|st)t?u?[wlq]_p' target/m68k/); \
    done

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <huth@tuxfamily.org>
Message-ID: <20241004163042.85922-19-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-10-07 11:33:20 +02:00
Philippe Mathieu-Daudé
77b535cfdd hw/m68k: Use explicit big-endian LD/ST API
The M68K architecture uses big endianness. Directly use
the big-endian LD/ST API.

Mechanical change using:

  $ end=be; \
    for acc in uw w l q tul; do \
      sed -i -e "s/ld${acc}_p(/ld${acc}_${end}_p(/" \
             -e "s/st${acc}_p(/st${acc}_${end}_p(/" \
        $(git grep -wlE '(ld|st)t?u?[wlq]_p' hw/m68k/); \
    done

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <huth@tuxfamily.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20241004163042.85922-18-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-10-07 11:33:20 +02:00
Michael Tokarev
7e9503f504 gitlab-ci/build-oss-fuzz: print FAILED marker in case the test failed and run all tests
currently, if an oss-fuzz fails, the script does just `exit 1`
without any additional output, and looking at the build log in
the gitlab ci it is not clear what actually failed, without
looking at build-oss-fuzz script and seeing this `exit 1`.

Print easily recognizable error message about test failure, so
it becomes obvious what exactly has failed.

While at it, continue running other tests even in case of
failure, and exit non-zero if at least one test failed.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20241003121656.1173612-1-mjt@tls.msk.ru>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-10-07 11:33:20 +02:00
Philippe Mathieu-Daudé
c700d06819 disas: Remove CRIS disassembler
We just removed the CRIS target, the disassembler is now dead code.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240904143603.52934-15-philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-10-07 11:33:20 +02:00
Philippe Mathieu-Daudé
0522910d7d .gitlab-ci.d/cirrus: Add manual testing of macOS 15 (Sequoia)
Upgrade libvirt-ci so it covers macOS 15. Add a manual entry
(QEMU_JOB_OPTIONAL: 1) to test on Sequoia release. Refresh the
lci-tool generated files.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240917085058.1740-4-philmd@linaro.org>
[thuth: Fix image names in cirrus.yml and hash for tests/lcitool/libvirt-ci]
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-10-07 11:33:12 +02:00
Philippe Mathieu-Daudé
de11da6448 .gitlab-ci.d/cirrus: Drop support for macOS 13 (Ventura)
macOS 15 "Sequoia" was released on September 16, 2024 [1].

According to QEMU's support policy, we stop supporting
the previous major release two years after the the new
major release has been published. Time to remove support
for macOS 13 (Ventura, released on October 2022, [2]).

Promote the macOS 14 job, which was only built manually,
to be run by default.

[1] https://www.apple.com/newsroom/2024/09/macos-sequoia-is-available-today/
[2] https://www.apple.com/newsroom/2022/10/macos-ventura-is-now-available/

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240917085058.1740-3-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-10-07 10:57:57 +02:00
Thomas Huth
b873463821 docs: Mark "gluster" support in QEMU as deprecated
According to https://marc.info/?l=fedora-devel-list&m=171934833215726
the GlusterFS development effectively ended. Thus mark it as deprecated
in QEMU, so we can remove it in a future release if the project does
not gain momentum again.

Acked-by: Niels de Vos <ndevos@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20241002082033.129022-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-10-07 10:54:10 +02:00