Commit graph

17889 commits

Author SHA1 Message Date
Fiona Ebner
a256a427b0 blockjob: mark block_job_remove_all_bdrv() as GRAPH_UNLOCKED
The function block_job_remove_all_bdrv() calls
bdrv_graph_wrlock_drained(), which must be called with the graph
unlocked.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-49-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:28 +02:00
Fiona Ebner
2cf92b15cd block: mark bdrv_open_child_common() and its callers GRAPH_UNLOCKED
The function bdrv_open_child_common() calls
bdrv_graph_wrlock_drained(), which must be called with the graph
unlocked. Mark it and its two callers bdrv_open_file_child() and
bdrv_open_child() as GRAPH_UNLOCKED. This requires temporarily
unlocking in vmdk_parse_extents() and making the locked section
shorter in vmdk_open().

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-48-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:27 +02:00
Fiona Ebner
ede0859311 block: mark bdrv_close() as GRAPH_UNLOCKED
The functions blk_log_writes_close(), blkverify_close(),
quorum_close(), vmdk_close() via vmdk_free_extents(), and other
bdrv_close() implementations call bdrv_graph_wrlock_drained(), which
must be called with the graph unlocked. They are reached via the
BlockDriver's bdrv_close() callback and the bdrv_close() wrapper,
which are also marked as GRAPH_UNLOCKED_PTR and GRAPH_UNLOCKED.

Furthermore, the function bdrv_close() also calls bdrv_drained_begin()
and bdrv_graph_wrlock_drained(), so there are additional reasons for
marking it GRAPH_UNLOCKED.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-47-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:26 +02:00
Fiona Ebner
6d7e3f8de0 block: mark bdrv_close_all() as GRAPH_UNLOCKED
The function bdrv_close_all() calls bdrv_drain_all(), which must be
called with the graph unlocked.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-46-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:25 +02:00
Fiona Ebner
94371745d7 block: mark bdrv_drop_intermediate() as GRAPH_UNLOCKED
The function bdrv_drop_intermediate() calls bdrv_drained_begin(),
which must be called with the graph unlocked.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-45-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:23 +02:00
Fiona Ebner
04f4d9c555 block: mark bdrv_insert_node() as GRAPH_UNLOCKED
The function bdrv_insert_node() calls bdrv_drained_begin() which must
be called with the graph unlocked.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-44-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:22 +02:00
Fiona Ebner
5d04823347 block: mark bdrv_replace_child_bs() as GRAPH_UNLOCKED
The function bdrv_replace_child_bs() calls bdrv_drained_begin() which
must be called with the graph unlocked.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-43-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:21 +02:00
Fiona Ebner
60f609c152 block/commit: mark commit_abort() as GRAPH_UNLOCKED
The function commit_abort() calls bdrv_drained_begin(), which must be
called with the graph unlocked.

Also mark the JobDriver's abort() callback as GRAPH_UNLOCKED_PTR,
because that is the callback via which commit_abort() is reached.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-41-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:13 +02:00
Fiona Ebner
7bb9bd52ec block-backend: mark blk_io_limits_disable() as GRAPH_UNLOCKED
The function blk_io_limits_disable() calls bdrv_drained_begin(), which
must be called with the graph unlocked.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-40-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:12 +02:00
Fiona Ebner
f3e84330f7 block: mark blk_drain() as GRAPH_UNLOCKED
The function blk_drain() calls bdrv_drained_begin(), which must be
called with the graph unlocked.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-39-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:11 +02:00
Fiona Ebner
b326b127df block: mark blk_remove_bs() as GRAPH_UNLOCKED
The function blk_remove_bs() calls bdrv_graph_wrlock_drained() and can
also call bdrv_drained_begin(), both of which which must be called with
the graph unlocked.

Marking blk_remove_bs() as GRAPH_UNLOCKED requires temporarily
unlocking in hmp_drive_del().

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-38-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:10 +02:00
Fiona Ebner
7525aa25db block: mark bdrv_inactivate_all() as GRAPH_UNLOCKED
The function bdrv_inactivate_all() calls bdrv_drain_all_begin(), which
must be called with the graph unlocked.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-37-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:08 +02:00
Fiona Ebner
e2d9cc5790 block: mark bdrv_inactivate() as GRAPH_RDLOCK and move drain to callers
The function bdrv_inactivate() calls bdrv_drain_all_begin(), which
needs to be called with the graph unlocked, so either
bdrv_inactivate() should be marked as GRAPH_UNLOCKED or the drain
needs to be moved to the callers. The caller in
qmp_blockdev_set_active() requires that the locked section covers
bdrv_find_node() too, so the latter alternative is chosen.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-36-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:07 +02:00
Fiona Ebner
6717dc3075 block: mark bdrv_reopen_queue() and bdrv_reopen_multiple() as GRAPH_UNLOCKED
The function bdrv_reopen_queue() can call bdrv_drain_all_begin(),
which must be called with the graph unlocked.

The function bdrv_reopen_multiple() calls bdrv_reopen_prepare() which
must be called with the graph unlocked.

To mark bdrv_reopen_queue() as GRAPH_UNLOCKED, it is necessary to make
the locked section in reopen_backing_file() shorter.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-35-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:05 +02:00
Fiona Ebner
0a0474b065 block/stream: mark stream_prepare() as GRAPH_UNLOCKED
The function stream_prepare() calls bdrv_drain_all_begin(), which
must be called with the graph unlocked.

Also mark the JobDriver's prepare() callback as GRAPH_UNLOCKED_PTR,
because that is the callback via which stream_prepare() is reached.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-34-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:04 +02:00
Fiona Ebner
c6b5328b5b block/snapshot: mark bdrv_all_delete_snapshot() as GRAPH_UNLOCKED
The function bdrv_all_delete_snapshot() calls bdrv_drain_all_begin(),
which must be called with the graph unlocked.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-33-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:02 +02:00
Fiona Ebner
9ec8c4793f block-backend: mark blk_drain_all() as GRAPH_UNLOCKED
The function blk_drain_all() calls bdrv_drain_all_begin(), which must
be called with the graph unlocked.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-32-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:42:00 +02:00
Fiona Ebner
54eb59d668 block: drop wrapper for bdrv_set_backing_hd_drained()
Nearly all callers (outside of the tests) are already using the
_drained() variant of the function. It doesn't seem worth keeping.
Simply adapt the remaining callers of bdrv_set_backing_hd() and rename
bdrv_set_backing_hd_drained() to bdrv_set_backing_hd().

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-31-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:41:58 +02:00
Fiona Ebner
de0d24c711 block: mark bdrv_set_backing_hd() as GRAPH_UNLOCKED
The function bdrv_set_backing_hd() calls bdrv_drain_all_begin(), which
must be called with the graph unlocked.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-29-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:41:54 +02:00
Fiona Ebner
6b89e851fa block: add bdrv_graph_wrlock_drained() convenience wrapper
Many write-locked sections are also drained sections. A new
bdrv_graph_wrunlock_drained() wrapper around bdrv_graph_wrunlock() is
introduced, which will begin a drained section first. A global
variable is used so bdrv_graph_wrunlock() knows if it also needs
to end such a drained section. Both the aio_poll call in
bdrv_graph_wrlock() and the aio_bh_poll() in bdrv_graph_wrunlock()
can re-enter a write-locked section. While for the latter, ending the
drain could be moved to before the call, the former requires that the
variable is a counter and not just a boolean.

Since the wrapper calls bdrv_drain_all_begin(), which must be called
with the graph unlocked, mark the wrapper as GRAPH_UNLOCKED too.

The switch to the new helpers was generated with the following
commands and then manually checked:
find . -name '*.c' -exec sed -i -z 's/bdrv_drain_all_begin();\n\s*bdrv_graph_wrlock();/bdrv_graph_wrlock_drained();/g' {} ';'
find . -name '*.c' -exec sed -i -z 's/bdrv_graph_wrunlock();\n\s*bdrv_drain_all_end();/bdrv_graph_wrunlock();/g' {} ';'

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-25-f.ebner@proxmox.com>
[kwolf: Removed redundant GRAPH_UNLOCKED]
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:40:58 +02:00
Fiona Ebner
502f00c51a block: never use atomics to access bs->quiesce_counter
All accesses of bs->quiesce_counter are in the main thread, either
after a GLOBAL_STATE_CODE() macro or in a function with GRAPH_WRLOCK
annotation.

This is essentially a revert of 414c2ec358 ("block: access
quiesce_counter with atomic ops"). At that time, neither the
GLOBAL_STATE_CODE() macro nor the GRAPH_WRLOCK annotation existed.
Even if the field was only accessed in the main thread back then (did
not check if that is actually the case), it wouldn't have been easy to
verify.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-24-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-07-14 15:40:45 +02:00
Stefan Hajnoczi
9a4e273dde fpu: Process float_muladd_negate_result after rounding
tcg: Use uintptr_t in tcg_malloc implementation
 linux-user: Hold the fd-trans lock across fork
 linux-user: Implement fchmodat2 syscall
 linux-user: Check for EFAULT failure in nanosleep
 linux-user: Use qemu_set_cloexec() to mark pidfd as FD_CLOEXEC
 linux-user/gen-vdso: Handle fseek() failure
 linux-user/gen-vdso: Don't read off the end of buf[]
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Merge tag 'pull-tcg-20250711' of https://gitlab.com/rth7680/qemu into staging

fpu: Process float_muladd_negate_result after rounding
tcg: Use uintptr_t in tcg_malloc implementation
linux-user: Hold the fd-trans lock across fork
linux-user: Implement fchmodat2 syscall
linux-user: Check for EFAULT failure in nanosleep
linux-user: Use qemu_set_cloexec() to mark pidfd as FD_CLOEXEC
linux-user/gen-vdso: Handle fseek() failure
linux-user/gen-vdso: Don't read off the end of buf[]

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# gpg: Signature made Fri 11 Jul 2025 13:21:13 EDT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* tag 'pull-tcg-20250711' of https://gitlab.com/rth7680/qemu:
  linux-user: Use qemu_set_cloexec() to mark pidfd as FD_CLOEXEC
  tcg: Use uintptr_t in tcg_malloc implementation
  linux-user: Hold the fd-trans lock across fork
  linux-user/mips/o32: Drop sa_restorer functionality
  linux-user/gen-vdso: Don't read off the end of buf[]
  linux-user/gen-vdso: Handle fseek() failure
  linux-user: Check for EFAULT failure in nanosleep
  linux-user: Implement fchmodat2 syscall
  fpu: Process float_muladd_negate_result after rounding

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-07-13 01:46:04 -04:00
Stefan Hajnoczi
52af79811f Migration pull request
- General cleanups around: postcopy, bg-snapshot, migration hooks,
   migration completion and formatting of 'info migrate'.
 
 - Overhaul of postcopy blocktime tracking.
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Merge tag 'migration-20250711-pull-request' of https://gitlab.com/farosas/qemu into staging

Migration pull request

- General cleanups around: postcopy, bg-snapshot, migration hooks,
  migration completion and formatting of 'info migrate'.

- Overhaul of postcopy blocktime tracking.

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# gpg: Signature made Fri 11 Jul 2025 10:04:08 EDT
# gpg:                using RSA key AA1B48B0A22326A5A4C364CFC798DC741BEC319D
# gpg:                issuer "farosas@suse.de"
# gpg: Good signature from "Fabiano Rosas <farosas@suse.de>" [unknown]
# gpg:                 aka "Fabiano Almeida Rosas <fabiano.rosas@suse.com>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: AA1B 48B0 A223 26A5 A4C3  64CF C798 DC74 1BEC 319D

* tag 'migration-20250711-pull-request' of https://gitlab.com/farosas/qemu: (26 commits)
  migration: Rename save_live_complete_precopy_thread to save_complete_precopy_thread
  migration/postcopy: Add latency distribution report for blocktime
  migration/postcopy: blocktime allows track / report non-vCPU faults
  migration/postcopy: Optimize blocktime fault tracking with hashtable
  migration/postcopy: Cleanup the total blocktime accounting
  migration/postcopy: Cache the tid->vcpu mapping for blocktime
  migration/postcopy: Initialize blocktime context only until listen
  migration/postcopy: Report fault latencies in blocktime
  migration/postcopy: Add blocktime fault counts per-vcpu
  migration/postcopy: Bring blocktime layer to ns level
  migration/postcopy: Drop PostcopyBlocktimeContext.start_time
  migration/postcopy: Make all blocktime vars 64bits
  migration/postcopy: Drop all atomic ops in blocktime feature
  migration/postcopy: Push blocktime start/end into page req mutex
  migration: Add option to set postcopy-blocktime
  migration/postcopy: Avoid clearing dirty bitmap for postcopy too
  migration: Rewrite the migration complete detect logic
  migration/ram: Add tracepoints for ram_save_complete()
  migration/ram: One less indent for ram_find_and_save_block()
  migration: qemu_savevm_complete*() helpers
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-07-13 01:45:30 -04:00
Stefan Hajnoczi
0edc2afe0c target-arm queue:
* New board type max78000fthr
  * Enable use of CXL on Arm 'virt' board
  * Some more tidyup of ID register handling
  * Refactor AT insns and PMU regs into separate source files
  * Don't enforce NSE,NS check for EL3->EL3 returns
  * hw/arm/fsl-imx8mp: Wire VIRQ and VFIQ
  * Allow nested-virtualization with KVM on the 'virt' board
  * system/qdev: Remove pointless NULL check in qdev_device_add_from_qdict
  * hw/arm/virt-acpi-build: Don't create ITS id mappings by default
  * target/arm: Remove unused helper_sme2_luti4_4b
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Merge tag 'pull-target-arm-20250711' of https://gitlab.com/pm215/qemu into staging

target-arm queue:
 * New board type max78000fthr
 * Enable use of CXL on Arm 'virt' board
 * Some more tidyup of ID register handling
 * Refactor AT insns and PMU regs into separate source files
 * Don't enforce NSE,NS check for EL3->EL3 returns
 * hw/arm/fsl-imx8mp: Wire VIRQ and VFIQ
 * Allow nested-virtualization with KVM on the 'virt' board
 * system/qdev: Remove pointless NULL check in qdev_device_add_from_qdict
 * hw/arm/virt-acpi-build: Don't create ITS id mappings by default
 * target/arm: Remove unused helper_sme2_luti4_4b

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# gpg: Signature made Fri 11 Jul 2025 09:29:46 EDT
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg:                 aka "Peter Maydell <peter@archaic.org.uk>" [unknown]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* tag 'pull-target-arm-20250711' of https://gitlab.com/pm215/qemu: (36 commits)
  tests/functional: Add a test for the MAX78000 arm machine
  docs/system: arm: Add max78000 board description
  target/arm: Remove helper_sme2_luti4_4b
  hw/arm/virt-acpi-build: Don't create ITS id mappings by default
  system/qdev: Remove pointless NULL check in qdev_device_add_from_qdict
  hw/arm/virt: Allow virt extensions with KVM
  hw/arm/arm_gicv3_kvm: Add a migration blocker with kvm nested virt
  target/arm: Enable feature ARM_FEATURE_EL2 if EL2 is supported
  target/arm/kvm: Add helper to detect EL2 when using KVM
  hw/arm: Allow setting KVM vGIC maintenance IRQ
  hw/arm/fsl-imx8mp: Wire VIRQ and VFIQ
  target/arm: Don't enforce NSE,NS check for EL3->EL3 returns
  target/arm: Split out performance monitor regs to cpregs-pmu.c
  target/arm: Split out AT insns to tcg/cpregs-at.c
  target/arm: Drop stub for define_tlb_insn_regs
  arm/kvm: shorten one overly long line
  arm/cpu: store clidr into the idregs array
  arm/cpu: fix trailing ',' for SET_IDREG
  arm/cpu: store id_aa64afr{0,1} into the idregs array
  arm/cpu: store id_afr0 into the idregs array
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-07-13 01:45:18 -04:00
Richard Henderson
c86da2b1dd tcg: Use uintptr_t in tcg_malloc implementation
Avoid ubsan failure with clang-20,
  tcg.h:715:19: runtime error: applying non-zero offset 64 to null pointer
by not using pointers.

Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-07-11 10:43:47 -06:00
Juraj Marcin
beeac2df5f migration: Rename save_live_complete_precopy_thread to save_complete_precopy_thread
Recent patch [1] renames the save_live_complete_precopy handler to
save_complete, as the machine is not live in most cases when this
handler is executed. The same is true also for
save_live_complete_precopy_thread, therefore this patch removes the
"live" keyword from the handler itself and related types to keep the
naming unified.

In contrast to save_complete, this handler is only executed at the end
of precopy, therefore the "precopy" keyword is retained.

[1]: https://lore.kernel.org/all/20250613140801.474264-7-peterx@redhat.com/

Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Juraj Marcin <jmarcin@redhat.com>
Link: https://lore.kernel.org/r/20250626085235.294690-1-jmarcin@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2025-07-11 10:37:39 -03:00
Peter Xu
57c43e52bd migration: Rename save_live_complete_precopy to save_complete
Now after merging the precopy and postcopy version of complete() hook,
rename the precopy version from save_live_complete_precopy() to
save_complete().

Dropping the "live" when at it, because it's in most cases not live when
happening (in precopy).

No functional change intended.

Reviewed-by: Juraj Marcin <jmarcin@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20250613140801.474264-7-peterx@redhat.com
[peterx: squash the fixup that covers a few more doc spots, per Juraj]
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2025-07-11 10:37:36 -03:00
Peter Xu
d7530a9682 migration: Drop save_live_complete_postcopy hook
The hook is only defined in two vmstate users ("ram" and "block dirty
bitmap"), meanwhile both of them define the hook exactly the same as the
precopy version.  Hence, this postcopy version isn't needed.

No functional change intended.

Reviewed-by: Juraj Marcin <jmarcin@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20250613140801.474264-6-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2025-07-11 10:37:35 -03:00
Bibo Mao
90cff30d72 hw/intc/loongarch_extioi: Move unrealize function to common code
Memory about LoongArchExtIOICommonState::cpu is allocated in common
code, it had better be freed in common code also.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
2025-07-11 14:47:15 +08:00
Haibo Xu
66ba6d1367 hw/arm: Allow setting KVM vGIC maintenance IRQ
Allow virt arm machine to set the interrupt ID for the KVM
GIC maintenance interrupt.

This setting must be done before the KVM_DEV_ARM_VGIC_CTRL_INIT
hence the choice to perform the setting in the GICv3 realize
instead of proceeding the same way as kvm_arm_pmu_set_irq().

Signed-off-by: Haibo Xu <haibo.xu@linaro.org>
Signed-off-by: Miguel Luis <miguel.luis@oracle.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20250707164129.1167837-2-eric.auger@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-10 09:25:37 +01:00
Jonathan Cameron
9d8ade51a2 hw/arm/virt: Basic CXL enablement on pci_expander_bridge instances pxb-cxl
Code based on i386/pc enablement.
The memory layout places space for 16 host bridge register regions after
the GIC_REDIST2 in the extended memmap. This is a hole in the current
map so adding them here has no impact on placement of other memory regions
(tested with enough CPUs for GIC_REDIST2 to be in use.)
The high memory map is GiB aligned so the hole is there whatever the
size of memory or device_memory below this point.

The CFMWs are placed above the extended memmap. Note the existing
variable highest_gpa is the highest GPA that has been allocated at
a particular point in setting up the memory map. Whilst this caused
some confusion in review there are existing comments explaining this
so nothing is added.

The cxl_devices_state.host_mr provides a small space in which to place
the individual host bridge register regions for whatever host bridges are
allocated via -device pxb-cxl on the command line. The existing dynamic
sysbus infrastructure is not reused because pxb-cxl is a PCI device not
a sysbus one but these registers are directly in the main memory map,
not the PCI address space.

Only create the CEDT table if cxl=on set for the machine. Default to off.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Tested-by: Itaru Kitayama <itaru.kitayama@fujitsu.com>
Tested-by: Li Zhijian <lizhijian@fujitsu.com>
Message-id: 20250703104110.992379-4-Jonathan.Cameron@huawei.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-08 20:27:09 +01:00
Jonathan Cameron
584f722eb3 hw/cxl: Make the CXL fixed memory windows devices.
Previously these somewhat device like structures were tracked using a list
in the CXLState in each machine. This is proving restrictive in a few
cases where we need to iterate through these without being aware of the
machine type. Just make them sysbus devices.

Restrict them to not user created as they need to be visible to early
stages of machine init given effects on the memory map.

This change both simplifies state tracking and enables features needed
for performance optimization and hotness tracking by making it possible
to retrieve the fixed memory window on actions elsewhere in the topology.

In some cases the ordering of the Fixed Memory Windows matters.
For those utility functions provide a GSList sorted by the window index.
This ensures that we get consistency across:
- ordering in the command line
- ordering of the host PA ranges
- ordering of ACPI CEDT structures describing the CFMWS.

Other aspects don't have this constraint. For those direct iteration
of the underlying hash structures is fine.

In the setup path for the memory map in pc_memory_init() split the
operations into two calls. The first, cxl_fmws_set_mmemap(), loops over
fixed memory windows in order and assigns their addresses.  The second,
cxl_fmws_update_mmio() actually sets up the mmio for each window.
This is obviously less efficient than a single loop but this split design
is needed to put the logic in two different places in the arm64 support
and it is not a hot enough path to justify an x86 only implementation.

Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Tested-by: Li Zhijian <lizhijian@fujitsu.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Tested-by: Itaru Kitayama <itaru.kitayama@fujitsu.com>
Message-id: 20250703104110.992379-3-Jonathan.Cameron@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-08 20:27:09 +01:00
Jonathan Cameron
35566583d8 hw/cxl-host: Add an index field to CXLFixedMemoryWindow
To enable these to be found in a fixed order, that order needs to be known.
This will later be used to sort a list of these structures so that address
map and ACPI table entries are predictable.

Tested-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Tested-by: Itaru Kitayama <itaru.kitayama@fujitsu.com>
Message-id: 20250703104110.992379-2-Jonathan.Cameron@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-08 20:27:08 +01:00
Jackson Donaldson
4b3a1eb066 MAX78000: Add AES to SOC
This commit adds AES to max78000_soc

Signed-off-by: Jackson Donaldson <jcksn@duck.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250704223239.248781-12-jcksn@duck.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-08 17:31:59 +01:00
Jackson Donaldson
33dfff7e34 MAX78000: AES implementation
This commit implements AES for the MAX78000

Signed-off-by: Jackson Donaldson <jcksn@duck.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250704223239.248781-11-jcksn@duck.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-08 17:31:59 +01:00
Jackson Donaldson
5adeb16032 MAX78000: Add TRNG to SOC
This commit adds TRNG to max78000_soc

Signed-off-by: Jackson Donaldson
Message-id: 20250704223239.248781-10-jcksn@duck.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-08 17:31:38 +01:00
Jackson Donaldson
069852d159 MAX78000: TRNG Implementation
This commit implements the True Random Number
Generator for the MAX78000

Signed-off-by: Jackson Donaldson <jcksn@duck.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250704223239.248781-9-jcksn@duck.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-08 17:31:38 +01:00
Jackson Donaldson
035a38fa97 MAX78000: Add GCR to SOC
This commit adds the Global Control Register to
max78000_soc

Signed-off-by: Jackson Donaldson <jcksn@duck.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250704223239.248781-8-jcksn@duck.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-08 17:31:38 +01:00
Jackson Donaldson
a017f53e09 MAX78000: GCR Implementation
This commit implements the Global Control Register
for the MAX78000

Signed-off-by: Jackson Donaldson <jcksn@duck.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250704223239.248781-7-jcksn@duck.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-08 17:31:38 +01:00
Jackson Donaldson
a670bb8a72 MAX78000: Add UART to SOC
This commit adds UART to max78000_soc

Signed-off-by: Jackson Donaldson <jcksn@duck.com>
Reviewed-by: Peter Maydell <petermaydell@linaro.org>
Message-id: 20250704223239.248781-6-jcksn@duck.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-08 17:31:38 +01:00
Jackson Donaldson
d447e4b702 MAX78000: UART Implementation
This commit implements UART support for the MAX78000

Signed-off-by: Jackson Donaldson <jcksn@duck.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250704223239.248781-5-jcksn@duck.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-08 17:31:38 +01:00
Jackson Donaldson
65714d3e6c MAX78000: Add ICC to SOC
This commit adds the instruction cache controller
to max78000_soc

Signed-off-by: Jackson Donaldson <jcksn@duck.com>
Reviewed-by: Peter Maydell <petermaydell@linaro.org>
Message-id: 20250704223239.248781-4-jcksn@duck.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-08 17:31:38 +01:00
Jackson Donaldson
3ec680e64c MAX78000: ICC Implementation
This commit implements the Instruction Cache Controller
for the MAX78000

Signed-off-by: Jackson Donaldson <jcksn@duck.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250704223239.248781-3-jcksn@duck.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-08 17:31:38 +01:00
Jackson Donaldson
51eb283dd0 MAX78000: Add MAX78000FTHR Machine
This patch adds support for the MAX78000FTHR machine.

The MAX78000FTHR contains a MAX78000 and a RISC-V core. This patch
implements only the MAX78000, which is Cortex-M4 based.
Details can be found at:
https://www.analog.com/media/en/technical-documentation/user-guides/max78000-user-guide.pdf

Signed-off-by: Jackson Donaldson <jcksn@duck.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250704223239.248781-2-jcksn@duck.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-08 17:31:38 +01:00
Stefan Hajnoczi
84d1639f28 Accelerators patches
- Generic API consolidation, cleanups (dead code removal, documentation added)
 - Remove monitor TCG 'info opcount' and @x-query-opcount
 - Have HVF / NVMM / WHPX use generic CPUState::vcpu_dirty field
 - Expose nvmm_enabled() and whpx_enabled() to common code
 - Report missing com.apple.security.hypervisor entitlement
 - Have hmp_info_registers() dump vector registers
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Merge tag 'accel-20250704' of https://github.com/philmd/qemu into staging

Accelerators patches

- Generic API consolidation, cleanups (dead code removal, documentation added)
- Remove monitor TCG 'info opcount' and @x-query-opcount
- Have HVF / NVMM / WHPX use generic CPUState::vcpu_dirty field
- Expose nvmm_enabled() and whpx_enabled() to common code
- Report missing com.apple.security.hypervisor entitlement
- Have hmp_info_registers() dump vector registers

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* tag 'accel-20250704' of https://github.com/philmd/qemu: (35 commits)
  MAINTAINERS: Add me as reviewer of overall accelerators section
  monitor/hmp-cmds-target: add CPU_DUMP_VPU in hmp_info_registers()
  accel/system: Convert pre_resume() from AccelOpsClass to AccelClass
  accel: Pass AccelState argument to gdbstub_supported_sstep_flags()
  accel: Remove unused MachineState argument of AccelClass::setup_post()
  accel: Directly pass AccelState argument to AccelClass::has_memory()
  accel/kvm: Directly pass KVMState argument to do_kvm_create_vm()
  accel/kvm: Prefer local AccelState over global MachineState::accel
  accel/tcg: Prefer local AccelState over global current_accel()
  accel/hvf: Re-use QOM allocated state
  accel: Propagate AccelState to AccelClass::init_machine()
  accel: Keep reference to AccelOpsClass in AccelClass
  accel: Expose and register generic_handle_interrupt()
  accel/dummy: Extract 'dummy-cpus.h' header from 'system/cpus.h'
  accel/whpx: Expose whpx_enabled() to common code
  accel/nvmm: Expose nvmm_enabled() to common code
  accel/system: Document cpu_synchronize_state_post_init/reset()
  accel/system: Document cpu_synchronize_state()
  accel/kvm: Remove kvm_cpu_synchronize_state() stub
  accel/whpx: Replace @dirty field by generic CPUState::vcpu_dirty field
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

Conflicts:
  accel/accel-system.c
  accel/hvf/hvf-all.c
  include/qemu/accel.h

  pre_resume_vm()-related conflicts.
2025-07-07 09:18:34 -04:00
Philippe Mathieu-Daudé
9a8e6b9ca1 accel/system: Convert pre_resume() from AccelOpsClass to AccelClass
Accelerators call pre_resume() once. Since it isn't a method to
call for each vCPU, move it from AccelOpsClass to AccelClass.
Adapt WHPX.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250702185332.43650-21-philmd@linaro.org>
2025-07-04 15:37:07 +02:00
Philippe Mathieu-Daudé
261573c772 accel: Pass AccelState argument to gdbstub_supported_sstep_flags()
In order to have AccelClass methods instrospect their state,
we need to pass AccelState by argument.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-37-philmd@linaro.org>
2025-07-04 15:22:04 +02:00
Philippe Mathieu-Daudé
c7212fd2ce accel: Remove unused MachineState argument of AccelClass::setup_post()
This method only accesses xen_domid/xen_domid_restrict, which are both
related to the 'accelerator', not the machine. Besides, xen_domid aims
to be in Xen AccelState and xen_domid_restrict a xen_domid_restrict
QOM property.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-36-philmd@linaro.org>
2025-07-04 15:22:04 +02:00
Philippe Mathieu-Daudé
14784d00ce accel: Directly pass AccelState argument to AccelClass::has_memory()
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-34-philmd@linaro.org>
2025-07-04 15:22:04 +02:00
Philippe Mathieu-Daudé
9d01d2e86d accel: Propagate AccelState to AccelClass::init_machine()
In order to avoid init_machine() to call current_accel(),
pass AccelState along.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-31-philmd@linaro.org>
2025-07-04 15:22:02 +02:00