* Various fixes, improvements and additions for the functional test suite
* Restore the sh4eb target
* Fix the OpenBSD VM test
* Re-enable the pci-bridge device on s390x
* Minor clean-ups / fixes for the next-cube machine
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Merge tag 'pull-request-2024-11-04' of https://gitlab.com/thuth/qemu into staging
* Remove the redundant macOS-15 CI job
* Various fixes, improvements and additions for the functional test suite
* Restore the sh4eb target
* Fix the OpenBSD VM test
* Re-enable the pci-bridge device on s390x
* Minor clean-ups / fixes for the next-cube machine
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# gpg: Signature made Mon 04 Nov 2024 13:22:12 GMT
# 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-2024-11-04' of https://gitlab.com/thuth/qemu:
tests/functional: Convert the OrangePi tests to the functional framework
tests/functional: Convert BananaPi tests to the functional framework
tests/functional: Convert the tcg_plugins test
next-cube: remove cpu parameter from next_scsi_init()
next-cube: fix up compilation when DEBUG_NEXT is enabled
hw/s390x: Re-enable the pci-bridge device on s390x
tests/functional: Fix the s390x and ppc64 tuxrun tests
tests/vm/openbsd: Remove the "Time appears wrong" workaround
tests/functional: Add a test for sh4eb
Revert "Remove the unused sh4eb target"
tests/functional: make cached asset files read-only
tests/functional: make tuxrun disk images writable
.gitlab-ci.d/cirrus: Remove the macos-15 job
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Please pull a single commit, which updates SeaBIOS-hppa
to version 17.
If comes with some important firmware and SCSI fixes and
prepares for futher development to support 64-bit HP-UX
and MPE/UX in the future.
New PDC functions & general enhancements:
- Add PDC_MODEL_GET_INSTALL_KERNEL firmware call
- Add PDC_PAT_EVENT firmware call
- Support ENTRY_IO_BOOTOUT
- Prefer memory-access over io-access of GSP serial port
- Disable LMMIO_DIRECT0 range during modification
- Small optimizations in IODC call
Fixes:
- esp-scsi: indicate acceptance of MESSAGE IN phase data
- Avoid crash when booting without SCSI controller
- Remove exec flag from hppa-firmware.img
- Fix LMMIO detection for PCI cards on Astro/Elroy
- Avoid trashing MPE IPL bootloader stack
- HP-UX 11 64-bit saves number of RAM pages in PAGE0 at 0x33c
- Fix return value of PDC_CACHE/PDC_CACHE_RET_SPID for space id hashing
- Allow PDC functions to act when called in narrow mode
- pcidevice: Use portaddr_t for io port addresses
Cleanups:
- Change default make target to "parisc"
- Clean the "out-64" directory on "make clean"
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Merge tag 'seabios-hppa-v17-pull-request' of https://github.com/hdeller/qemu-hppa into staging
SeaBIOS-hppa v17 pull request
Please pull a single commit, which updates SeaBIOS-hppa
to version 17.
If comes with some important firmware and SCSI fixes and
prepares for futher development to support 64-bit HP-UX
and MPE/UX in the future.
New PDC functions & general enhancements:
- Add PDC_MODEL_GET_INSTALL_KERNEL firmware call
- Add PDC_PAT_EVENT firmware call
- Support ENTRY_IO_BOOTOUT
- Prefer memory-access over io-access of GSP serial port
- Disable LMMIO_DIRECT0 range during modification
- Small optimizations in IODC call
Fixes:
- esp-scsi: indicate acceptance of MESSAGE IN phase data
- Avoid crash when booting without SCSI controller
- Remove exec flag from hppa-firmware.img
- Fix LMMIO detection for PCI cards on Astro/Elroy
- Avoid trashing MPE IPL bootloader stack
- HP-UX 11 64-bit saves number of RAM pages in PAGE0 at 0x33c
- Fix return value of PDC_CACHE/PDC_CACHE_RET_SPID for space id hashing
- Allow PDC functions to act when called in narrow mode
- pcidevice: Use portaddr_t for io port addresses
Cleanups:
- Change default make target to "parisc"
- Clean the "out-64" directory on "make clean"
# -----BEGIN PGP SIGNATURE-----
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# =MjU+
# -----END PGP SIGNATURE-----
# gpg: Signature made Sun 03 Nov 2024 19:58:08 GMT
# gpg: using EDDSA key BCE9123E1AD29F07C049BBDEF712B510A23A0F5F
# gpg: Good signature from "Helge Deller <deller@gmx.de>" [unknown]
# gpg: aka "Helge Deller <deller@kernel.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 4544 8228 2CD9 10DB EF3D 25F8 3E5F 3D04 A7A2 4603
# Subkey fingerprint: BCE9 123E 1AD2 9F07 C049 BBDE F712 B510 A23A 0F5F
* tag 'seabios-hppa-v17-pull-request' of https://github.com/hdeller/qemu-hppa:
target/hppa: Update SeaBIOS-hppa to version 17
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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gD4oPwl8AdJiFvDN6vNjS+dO0ls+j/YMaoLkAKLv15dlWtg4Rw==
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Merge tag 'pull-loongarch-20241102' of https://gitlab.com/gaosong/qemu into staging
pull-loongarch-20241102
# -----BEGIN PGP SIGNATURE-----
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# =EZnr
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# gpg: Signature made Sat 02 Nov 2024 07:57:18 GMT
# gpg: using RSA key B8FF1DA0D2FDCB2DA09C6C2C40A2FFF239263EDF
# gpg: Good signature from "Song Gao <m17746591750@163.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: B8FF 1DA0 D2FD CB2D A09C 6C2C 40A2 FFF2 3926 3EDF
* tag 'pull-loongarch-20241102' of https://gitlab.com/gaosong/qemu:
target/loongarch: Add steal time support on migration
hw/loongarch/boot: Use warn_report when no kernel filename
linux-headers: Update to Linux v6.12-rc5
linux-headers: loongarch: Add kvm_para.h
linux-headers: Add unistd_64.h
target/loongarch/kvm: Implement LoongArch PMU extension
target/loongarch: Implement lbt registers save/restore function
target/loongarch: Add loongson binary translation feature
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Move the OrangePi tests from tests/avocado/boot_linux_console.py into
a new file dedicated for OrangePi tests in the functional framework
and update the hash sums of the assets to sha256 along the way.
For the buildroot image and the Armbian image, we've got to switch to
a newer version since the old images have been removed from the server,
and the NetBSD image has been moved to the archive, so we need to update
this URL as well.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20241029092440.25021-3-thuth@redhat.com>
Move the BananaPi tests from tests/avocado/boot_linux_console.py into
a new file dedicated for Banana Pi tests in the functional framework.
Update the hash sums of the assets to sha256 along the way and fix the
broken link for the buildroot image from storage.kernelci.org.
(Note: The test_arm_bpim2u_openwrt_22_03_3 test is currently broken
due to a regression in commit 4c2c047469 ("target/arm: Fix usage of MMU
indexes when EL3 is AArch32") - it works if that commit gets reverted)
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20241029092440.25021-2-thuth@redhat.com>
A straight forward conversion, only the usual changes were required
here (i.e. adjustment for asset downloading, machine selection).
Message-ID: <20241023051754.813412-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The parameter is not used.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Thomas Huth <huth@tuxfamily.org>
Message-ID: <20241023085852.1061031-5-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Thomas Huth <thuth@redhat.com>
These were accidentally introduced by my last series.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Thomas Huth <huth@tuxfamily.org>
Message-ID: <20241023085852.1061031-2-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Commit e779e5c05a ("hw/pci-bridge: Add a Kconfig switch for the
normal PCI bridge") added a config switch for the pci-bridge, so
that the device is not included in the s390x target anymore (since
the pci-bridge is not really useful on s390x).
However, it seems like libvirt is still adding pci-bridge devices
automatically to the guests' XML definitions (when adding a PCI
device to a non-zero PCI bus), so these guests are now broken due
to the missing pci-bridge in the QEMU binary.
To avoid disruption of the users, let's re-enable the pci-bridge
device on s390x for the time being.
Message-ID: <20241024130405.62134-1-thuth@redhat.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
I forgot to add the tests to the meson.build file and looks
like I even managed to somehow mix up the hashsums in the
ppc64 test!
Message-ID: <20241023141919.930689-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Seems like the server now reports the right time again, so we have
to drop the workaround to get the installer working again.
Message-ID: <20241023072414.827732-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Now that we are aware of binaries that are available for sh4eb,
we should make sure that there are no regressions with this
target and test it regularly in our CI.
Message-ID: <20241024082735.42324-3-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This reverts commit 73ceb12960.
The "r2d" machine can work in big endian mode, see:
https://lore.kernel.org/qemu-devel/d6755445-1060-48a8-82b6-2f392c21f9b9@landley.net/
So the reasoning for removing sh4eb was wrong.
Message-ID: <20241024082735.42324-2-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Rob Landley <rob@landley.net>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This ensures that if a functional test runs QEMU with a writable
disk pointing to a cached asset, an error will be reported, rather
than silently modifying the cache file.
As an example, tweaking test_sbsaref.py to set snapshot=off,
results in a clear error:
Command: ./build/qemu-system-aarch64 ...snip... -drive file=/var/home/berrange/.cache/qemu/download/44cdbae275ef1bb6dab1d5fbb59473d4f741e1c8ea8a80fd9e906b531d6ad461,format=raw,snapshot=off -cpu max,pauth=off
Output: qemu-system-aarch64: Could not open '/var/home/berrange/.cache/qemu/download/44cdbae275ef1bb6dab1d5fbb59473d4f741e1c8ea8a80fd9e906b531d6ad461': Permission denied
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20241025092659.2312118-3-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The zstd command will preserve the input archive permissions on the
output file. So when we decompress the readonly cached image, the
resulting per-test run private disk image will also be readonly.
We need it to be writable, so make it so.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20241025092659.2312118-2-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Cirrus-CI stopped providing the possibility to run macOS 15 jobs.
Quoting https://cirrus-ci.org/guide/macOS/ :
"Cirrus CI Cloud only allows ghcr.io/cirruslabs/macos-runner:sonoma image ..."
If you still try to run a Sequoia image, it gets automatically "upgraded"
to Sonoma instead. So the macos-15 job in the QEMU CI now does not
make sense anymore, thus let's remove it.
Message-ID: <20241021124722.139348-1-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Acked-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
v2:
- Patch "migration: Move cpu-throttle.c from system to migration",
fix build on MacOS, and subject spelling
NOTE: checkpatch.pl could report a false positive on this branch:
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#21:
{include/sysemu => migration}/cpu-throttle.h | 0
That's covered by "F: migration/" entry.
Changelog:
- Peter's cleanup patch on migrate_fd_cleanup()
- Peter's cleanup patch to introduce thread name macros
- Hanna's error path fix for vmstate subsection save()s
- Hyman's auto converge enhancement on background dirty sync
- Peter's additional tracepoints for save state entries
- Thomas's build fix for OpenBSD in dirtyrate.c
- Peter's deprecation of query-migrationthreads command
- Peter's cleanup/fixes from the "export misc.h" series
- Maciej's two small patches from multifd+vfio series
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Merge tag 'migration-20241030-pull-request' of https://gitlab.com/peterx/qemu into staging
Migration pull request for softfreeze
v2:
- Patch "migration: Move cpu-throttle.c from system to migration",
fix build on MacOS, and subject spelling
NOTE: checkpatch.pl could report a false positive on this branch:
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#21:
{include/sysemu => migration}/cpu-throttle.h | 0
That's covered by "F: migration/" entry.
Changelog:
- Peter's cleanup patch on migrate_fd_cleanup()
- Peter's cleanup patch to introduce thread name macros
- Hanna's error path fix for vmstate subsection save()s
- Hyman's auto converge enhancement on background dirty sync
- Peter's additional tracepoints for save state entries
- Thomas's build fix for OpenBSD in dirtyrate.c
- Peter's deprecation of query-migrationthreads command
- Peter's cleanup/fixes from the "export misc.h" series
- Maciej's two small patches from multifd+vfio series
# -----BEGIN PGP SIGNATURE-----
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# gpg: Signature made Fri 01 Nov 2024 13:44:53 GMT
# gpg: using EDDSA key B9184DC20CC457DACF7DD1A93B5FCCCDF3ABD706
# gpg: issuer "peterx@redhat.com"
# gpg: Good signature from "Peter Xu <xzpeter@gmail.com>" [marginal]
# gpg: aka "Peter Xu <peterx@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: B918 4DC2 0CC4 57DA CF7D D1A9 3B5F CCCD F3AB D706
* tag 'migration-20241030-pull-request' of https://gitlab.com/peterx/qemu:
migration/multifd: Zero p->flags before starting filling a packet
migration/ram: Add load start trace event
migration: Drop migration_is_idle()
migration: Drop migration_is_setup_or_active()
migration: Unexport ram_mig_init()
migration: Unexport dirty_bitmap_mig_init()
migration: Take migration object refcount earlier for threads
migration: Deprecate query-migrationthreads command
migration/dirtyrate: Silence warning about strcpy() on OpenBSD
tests/migration: Add case for periodic ramblock dirty sync
migration: Support periodic RAMBlock dirty bitmap sync
migration: Remove "rs" parameter in migration_bitmap_sync_precopy
migration: Move cpu-throttle.c from system to migration
migration: Stop CPU throttling conditionally
accel/tcg/icount-common: Remove the reference to the unused header file
migration: Ensure vmstate_save() sets errp
migration: Put thread names together with macros
migration: Cleanup migrate_fd_cleanup() on accessing to_dst_file
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This is SeaBIOS for the hppa architecture v17.
If comes with some important firmware and SCSI fixes and
prepares for futher development to support 64-bit HP-UX
and MPE/UX in the future.
New PDC functions & general enhancements:
- Add PDC_MODEL_GET_INSTALL_KERNEL firmware call
- Add PDC_PAT_EVENT firmware call
- Support ENTRY_IO_BOOTOUT
- Prefer memory-access over io-access of GSP serial port
- Disable LMMIO_DIRECT0 range during modification
- Small optimizations in IODC call
Fixes:
- esp-scsi: indicate acceptance of MESSAGE IN phase data
- Avoid crash when booting without SCSI controller
- Remove exec flag from hppa-firmware.img
- Fix LMMIO detection for PCI cards on Astro/Elroy
- Avoid trashing MPE IPL bootloader stack
- HP-UX 11 64-bit saves number of RAM pages in PAGE0 at 0x33c
- Fix return value of PDC_CACHE/PDC_CACHE_RET_SPID for space id hashing
- Allow PDC functions to act when called in narrow mode
- pcidevice: Use portaddr_t for io port addresses
Cleanups:
- Change default make target to "parisc"
- Clean the "out-64" directory on "make clean"
Signed-off-by: Helge Deller <deller@gmx.de>
With pv steal time supported, VM machine needs get physical address
of each vcpu and notify new host during migration. Here two
functions kvm_get_stealtime/kvm_set_stealtime, and guest steal time
physical address is only updated on KVM_PUT_FULL_STATE stage.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240930064040.753929-1-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
When we run “qemu-system-loongarch64 -qmp stdio -vnc none -S”,
we get an error message “Need kernel filename” and then we can't use qmp cmd to query some information.
So, we just throw a warning and then the cpus starts running from address VIRT_FLASH0_BASE.
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20241030012359.4040817-1-gaosong@loongson.cn>
update linux-headers to v6.12-rc5. Pass to compile on aarch64, arm,
loongarch64, x86_64, i386, riscv64,riscv32 softmmu and linux-user.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20241028023809.1554405-4-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
KVM LBT supports on LoongArch depends on the linux-header file
kvm_para.h, add header file kvm_para.h here.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20241028023809.1554405-3-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
since 6.11, unistd.h includes header file unistd_64.h directly on
some platforms, here add unistd_64.h on these platforms. Affected
platforms are ARM64, LoongArch64 and Riscv. Otherwise there will
be compiling error such as:
linux-headers/asm/unistd.h:3:10: fatal error: asm/unistd_64.h: No such file or directory
#include <asm/unistd_64.h>
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20241028023809.1554405-2-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Implement PMU extension for LoongArch kvm mode. Use OnOffAuto type
variable pmu to check the PMU feature. If the PMU Feature is not supported
with KVM host, it reports error if there is pmu=on command line.
If there is no any command line about pmu parameter, it checks whether
KVM host supports the PMU Feature and set the corresponding value in cpucfg.
This patch is based on lbt patch located at
https://lore.kernel.org/qemu-devel/20240904061859.86615-1-maobibo@loongson.cn
Co-developed-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240918082315.2345034-1-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Six registers scr0 - scr3, eflags and ftop are added in percpu vmstate.
And two functions kvm_loongarch_get_lbt/kvm_loongarch_put_lbt are added
to save/restore lbt registers.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240929070405.235200-3-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Loongson Binary Translation (LBT) is used to accelerate binary
translation, which contains 4 scratch registers (scr0 to scr3), x86/ARM
eflags (eflags) and x87 fpu stack pointer (ftop).
Now LBT feature is added in kvm mode, not supported in TCG mode since
it is not emulated. Feature variable lbt is added with OnOffAuto type,
If lbt feature is not supported with KVM host, it reports error if there
is lbt=on command line.
If there is no any command line about lbt parameter, it checks whether
KVM host supports lbt feature and set the corresponding value in cpucfg.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240929070405.235200-2-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
This way there aren't stale flags there.
p->flags can't contain SYNC to be sent at the next RAM packet since syncs
are now handled separately in multifd_send_thread.
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Link: https://lore.kernel.org/r/1c96b6cdb797e6f035eb1a4ad9bfc24f4c7f5df8.1730203967.git.maciej.szmigiero@oracle.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Now with the current migration_is_running(), it will report exactly the
opposite of what will be reported by migration_is_idle().
Drop migration_is_idle(), instead use "!migration_is_running()" which
should be identical on functionality.
In reality, most of the idle check is inverted, so it's even easier to
write with "migrate_is_running()" check.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20241024213056.1395400-6-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
This helper is mostly the same as migration_is_running(), except that one
has COLO reported as true, the other has CANCELLING reported as true.
Per my past years experience on the state changes, none of them should
matter.
To make it slightly safer, report both COLO || CANCELLING to be true in
migration_is_running(), then drop the other one. We kept the 1st only
because the name is simpler, and clear enough.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20241024213056.1395400-5-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
It's only used within migration/, so it shouldn't be exported.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20241024213056.1395400-3-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Both migration thread or background snapshot thread will take a refcount of
the migration object at the entrace of the thread function.
That makes sense, because it protects the object from being freed by the
main thread in migration_shutdown() later, but it might still race with it
if the thread is scheduled too late. Consider the case right after
pthread_create() happened, VM shuts down with the object released, but
right after that the migration thread finally got created, referencing
MigrationState* in the opaque pointer which is already freed.
The only 100% safe way to make sure it won't get freed is taking the
refcount right before the thread is created, meanwhile when BQL is held.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20241024213056.1395400-2-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Per previous discussion [1,2], this patch deprecates query-migrationthreads
command.
To summarize, the major reason of the deprecation is due to no sensible way
to consume the API properly:
(1) The reported list of threads are incomplete (ignoring destination
threads and non-multifd threads).
(2) For CPU pinning, there's no way to properly pin the threads with
the API if the threads will start running right away after migration
threads can be queried, so the threads will always run on the default
cores for a short window.
(3) For VM debugging, one can use "-name $VM,debug-threads=on" instead,
which will provide proper names for all migration threads.
[1] https://lore.kernel.org/r/20240930195837.825728-1-peterx@redhat.com
[2] https://lore.kernel.org/r/20241011153417.516715-1-peterx@redhat.com
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Acked-by: Markus Armbruster <armbru@redhat.com>
Link: https://lore.kernel.org/r/20241022194501.1022443-1-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
The linker on OpenBSD complains:
ld: warning: dirtyrate.c:447 (../src/migration/dirtyrate.c:447)(...):
warning: strcpy() is almost always misused, please use strlcpy()
It's currently not a real problem in this case since both arrays
have the same size (256 bytes). But just in case somebody changes
the size of the source array in the future, let's better play safe
and use g_strlcpy() here instead, with an additional check that the
string has been copied as a whole.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Hyman Huang <yong.huang@smartx.com>
Link: https://lore.kernel.org/r/20241022063402.184213-1-thuth@redhat.com
[peterx: Fix over-80 chars]
Signed-off-by: Peter Xu <peterx@redhat.com>
When VM is configured with huge memory, the current throttle logic
doesn't look like to scale, because migration_trigger_throttle()
is only called for each iteration, so it won't be invoked for a long
time if one iteration can take a long time.
The periodic dirty sync aims to fix the above issue by synchronizing
the ramblock from remote dirty bitmap and, when necessary, triggering
the CPU throttle multiple times during a long iteration.
This is a trade-off between synchronization overhead and CPU throttle
impact.
Signed-off-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/f61f1b3653f2acf026901103e1c73d157d38b08f.1729146786.git.yong.huang@smartx.com
[peterx: make prev_cnt global, and reset for each migration]
Signed-off-by: Peter Xu <peterx@redhat.com>
The global static variable ram_state in fact is referred to by the
"rs" parameter in migration_bitmap_sync_precopy. For ease of calling
by the callees, use the global variable directly in
migration_bitmap_sync_precopy and remove "rs" parameter.
The migration_bitmap_sync_precopy will be exported in the next commit.
Signed-off-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/283c335d61463bf477160da91b24da45cdaf3e43.1729146786.git.yong.huang@smartx.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Move cpu-throttle.c from system to migration since it's
only used for migration; this makes us avoid exporting the
util functions and variables in misc.h but export them in
migration.h when implementing the periodic ramblock dirty
sync feature in the upcoming commits.
Since CPU throttle timers are only used in migration, move
their registry to migration_object_init.
Signed-off-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/c1b3efaa0cb49e03d422e9da97bdb65cc3d234d1.1729146786.git.yong.huang@smartx.com
[peterx: Fix build on MacOS on cocoa.m, not move cpu-throttle.h yet]
[peterx: Fix subject spelling, per pm215]
Signed-off-by: Peter Xu <peterx@redhat.com>
migration/savevm.c contains some calls to vmstate_save() that are
followed by migrate_set_error() if the integer return value indicates an
error. migrate_set_error() requires that the `Error *` object passed to
it is set. Therefore, vmstate_save() is assumed to always set *errp on
error.
Right now, that assumption is not met: vmstate_save_state_v() (called
internally by vmstate_save()) will not set *errp if
vmstate_subsection_save() or vmsd->post_save() fail. Fix that by adding
an *errp parameter to vmstate_subsection_save(), and by generating a
generic error in case post_save() fails (as is already done for
pre_save()).
Without this patch, qemu will crash after vmstate_subsection_save() or
post_save() have failed inside of a vmstate_save() call (unless
migrate_set_error() then happen to discard the new error because
s->error is already set). This happens e.g. when receiving the state
from a virtio-fs back-end (virtiofsd) fails.
Signed-off-by: Hanna Czenczek <hreitz@redhat.com>
Link: https://lore.kernel.org/r/20241015170437.310358-1-hreitz@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Keep migration thread names together, so it's easier to see a list of all
possible migration threads.
Still two functional changes below besides the macro defintions:
- There's one dirty rate thread that we overlooked before, now we add
that too and name it as "mig/dirtyrate" following the old rules.
- The old name "mig/src/rp-thr" has "-thr" but it may not be useful if
it's a thread name anyway, while "rp" can be slightly hard to read.
Taking this chance to rename it to "mig/src/return", hopefully a better
name.
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Acked-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Link: https://lore.kernel.org/r/20241011153652.517440-1-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
The cleanup function can in many cases needs cleanup on its own.
The major thing we want to do here is not referencing to_dst_file when
without the file mutex. When at it, touch things elsewhere too to make it
look slightly better in general.
One thing to mention is, migration_thread has its own "running" boolean, so
it doesn't need to rely on to_dst_file being non-NULL. Multifd has a
dependency so it needs to be skipped if to_dst_file is not yet set; add a
richer comment for such reason.
Resolves: Coverity CID 1527402
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240919163042.116767-1-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
AVX10 state enumeration in CPUID leaf D and enabling in XCR0 register
are identical to AVX512 state regardless of the supported vector lengths.
Given that some E-cores will support AVX10 but not support AVX512, add
AVX512 state components to guest when AVX10 is enabled.
Based on a patch by Tao Su <tao1.su@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Tested-by: Xuelian Guo <xuelian.guo@intel.com>
Signed-off-by: Tao Su <tao1.su@linux.intel.com>
Link: https://lore.kernel.org/r/20241031085233.425388-8-tao1.su@linux.intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Since the highest supported vector length for a processor implies that
all lesser vector lengths are also supported, add the dependencies of
the supported vector lengths. If all vector lengths aren't supported,
clear AVX10 enable bit as well.
Note that the order of AVX10 related dependencies should be kept as:
CPUID_24_0_EBX_AVX10_128 -> CPUID_24_0_EBX_AVX10_256,
CPUID_24_0_EBX_AVX10_256 -> CPUID_24_0_EBX_AVX10_512,
CPUID_24_0_EBX_AVX10_VL_MASK -> CPUID_7_1_EDX_AVX10,
CPUID_7_1_EDX_AVX10 -> CPUID_24_0_EBX,
so that prevent user from setting weird CPUID combinations, e.g. 256-bits
and 512-bits are supported but 128-bits is not, no vector lengths are
supported but AVX10 enable bit is still set.
Since AVX10_128 will be reserved as 1, adding these dependencies has the
bonus that when user sets -cpu host,-avx10-128, CPUID_7_1_EDX_AVX10 and
CPUID_24_0_EBX will be disabled automatically.
Tested-by: Xuelian Guo <xuelian.guo@intel.com>
Signed-off-by: Tao Su <tao1.su@linux.intel.com>
Link: https://lore.kernel.org/r/20241028024512.156724-5-tao1.su@linux.intel.com
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lore.kernel.org/r/20241031085233.425388-7-tao1.su@linux.intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When AVX10 enable bit is set, the 0x24 leaf will be present as "AVX10
Converged Vector ISA leaf" containing fields for the version number and
the supported vector bit lengths.
Introduce avx10-version property so that avx10 version can be controlled
by user and cpu model. Per spec, avx10 version can never be 0, the default
value of avx10-version is set to 0 to determine whether it is specified by
user. The default can come from the device model or, for the max model,
from KVM's reported value.
Signed-off-by: Tao Su <tao1.su@linux.intel.com>
Link: https://lore.kernel.org/r/20241028024512.156724-3-tao1.su@linux.intel.com
Link: https://lore.kernel.org/r/20241028024512.156724-4-tao1.su@linux.intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Xuelian Guo <xuelian.guo@intel.com>
Link: https://lore.kernel.org/r/20241031085233.425388-5-tao1.su@linux.intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
