The bad_vmstate test currently fails if the host does not have a "python3"
binary in $PATH because the vmstate-static-checker.py script is executed
directly, so that it gets run via its shebang line. Use the right Python
interpreter from sys.executable to fix this problem.
Additionally, there was another bug with the formatting of the error
message in case of failures: The "+" operator can only concatenate strings,
but not strings with integers. Use a proper format string here instead.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Acked-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20260114101101.36225-1-thuth@redhat.com>
The memlock test analyzes /proc/*/status files and expects the layout
from Linux in there. However, these files also exist on NetBSD hosts
with a completely different layout, causing this test to fail. Thus
limit the test to Linux hosts now. We already have a decorator to
skip a test if it is running on a certain host system, but in this
case, we rather want to skip if we are not running on a specific
host system, so introduce a new @skipUnlessOperatingSystem decorator
for this job.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20260121111140.99482-1-thuth@redhat.com>
Pylint complains:
tests/functional/riscv64/test_boston.py:1:0: C0114:
Missing module docstring (missing-module-docstring)
tests/functional/riscv64/test_boston.py:95:8: C0415:
Import outside toplevel (subprocess.run, subprocess.PIPE) (import-outside-toplevel)
tests/functional/riscv64/test_boston.py:112:17: W1510:
'subprocess.run' used without explicitly defining the value for 'check'. (subprocess-run-check)
tests/functional/riscv64/test_boston.py:95:8: W0611:
Unused PIPE imported from subprocess (unused-import)
Rework the code a little bit to make the linter happy.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Chao Liu <chao.liu.zevorn@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20260116095615.269199-1-thuth@redhat.com>
When extending the container template to allow scheduled pipelines in
upstream context, we must ensure that all the existing rules defined
by .base_job_template are preserved.
Fortunately since the new rule for scheduled pipelines can come at
the head of all other rules, not in the middle, we can just the obscure
'!reference' syntax to pull in all the pre-existing rules as a single
block.
This fixes
* stable branches using the wrong tag name in container images
* pushes to forks unconditionally running container builds
Fixes: 8bec7b9874
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Tested-by: Michael Tokarev <mjt@tls.msk.ru>
Fixes: 8bec7b9874 ("gitlab: add a weekly container building job")
Message-ID: <20260119135528.2738108-1-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
* Fixes for vfio-user and CPR
* Fixes issues detected by Coverity
* Updates linux-headers to Linux v6.19-rc1
* Adds support for the creation of dma-buf objects for PCI BARs. This
allows safe P2P DMA operations when using iommufd host backend.
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Merge tag 'pull-vfio-20260126' of https://github.com/legoater/qemu into staging
vfio queue:
* Fixes for vfio-user and CPR
* Fixes issues detected by Coverity
* Updates linux-headers to Linux v6.19-rc1
* Adds support for the creation of dma-buf objects for PCI BARs. This
allows safe P2P DMA operations when using iommufd host backend.
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# gpg: Signature made Mon 26 Jan 2026 08:21:31 PM AEDT
# gpg: using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@redhat.com>" [full]
# gpg: aka "Cédric Le Goater <clg@kaod.org>" [full]
* tag 'pull-vfio-20260126' of https://github.com/legoater/qemu:
vfio-user: update VFIOProxy flag constants to use the BIT() macro
vfio-user: fix VFIO_PROXY_USE_MULTI constant value
hw/vfio/region: Create dmabuf for PCI BAR per region
hw/vfio: Add helper to retrieve device feature
linux-headers: Update to Linux v6.19-rc1
hw/vfio: cpr-iommufd: Fix wrong usage of migrate_add_blocker_modes
vfio/migration: Fix page size calculation
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This should help avoid incorrect constant values being used in future. At
the same time we can remove the gap left for BIT(1) which was originally
intended for the VFIO_PROXY_NO_MMAP feature which was removed from later
versions of the vfio-user series.
Suggested-by: John Levon <john.levon@nutanix.com>
Signed-off-by: Mark Cave-Ayland <mark.caveayland@nutanix.com>
Reviewed-by: John Levon <john.levon@nutanix.com>
Link: https://lore.kernel.org/qemu-devel/20260121110055.2333711-3-mark.caveayland@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
The constant value should represent the next bit in the VFIOProxy flags which
is 0x10 and not 0x16.
Signed-off-by: Mark Cave-Ayland <mark.caveayland@nutanix.com>
Fixes: 1a0c32a9da ("vfio-user: add coalesced posted writes")
Reviewed-by: John Levon <john.levon@nutanix.com>
Link: https://lore.kernel.org/qemu-devel/20260121110055.2333711-2-mark.caveayland@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Linux now provides a VFIO dmabuf exporter to expose PCI BAR memory for P2P
use cases. Create a dmabuf for each mapped BAR region after the mmap is set
up, and store the returned fd in the region’s RAMBlock. This allows QEMU to
pass the fd to dma_map_file(), enabling iommufd to import the dmabuf and map
the BAR correctly in the host IOMMU page table.
If the kernel lacks support or dmabuf setup fails, QEMU skips the setup
and continues with normal mmap handling.
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Shameer Kolothum <skolothumtho@nvidia.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20260121114111.34045-4-skolothumtho@nvidia.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Add vfio_device_get_feature() as a common helper to retrieve
VFIO device features.
No functional change intended.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Shameer Kolothum <skolothumtho@nvidia.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20260121114111.34045-3-skolothumtho@nvidia.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Mainly for adding support for VFIO DMABUF. While at it, update all
headers.
The header update breaks virtio-net due to virtio_net_hdr_v1_hash
changes. Include the virtio-net changes to avoid build and bisect
failures.
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Shameer Kolothum <skolothumtho@nvidia.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20260121114111.34045-2-skolothumtho@nvidia.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
The return value of API is 0 for success and negative error code for
failure. We'll check if the return value equals to 0.
Also, the MIG_MODE should be CPR_TRANSFER and CPR_EXEC instead
of 2 same bits.
The API usage is aligned with 'hw/vfio/cpr-legacy.c' after these 2
changes.
Fixes: 3ca0a0ab05 ("migration: Use bitset of MigMode instead of variable arguments")
Signed-off-by: Jim Shu <jim.shu@sifive.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20260121063418.2001326-1-jim.shu@sifive.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Coverity detected an issue of left shifting int by more than 31 bits leading
to undefined behavior.
In practice bcontainer->dirty_pgsizes always have some common page sizes
when dirty tracking is supported.
Resolves: Coverity CID 1644186
Resolves: Coverity CID 1644187
Resolves: Coverity CID 1644188
Fixes: 46c7633114 ("vfio/migration: Add migration blocker if VM memory is too large to cause unmap_bitmap failure").
Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20260116060315.65723-1-zhenzhong.duan@intel.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
v2:
Fix build error in which CentOS9 is lacking the definition of MADV_COLLAPSE
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Merge tag 'linux-user-for-v11-pull-request' of https://github.com/hdeller/qemu-hppa into staging
linux-user: statx() syscall, termios2 support and futext() syscall fixes
v2:
Fix build error in which CentOS9 is lacking the definition of MADV_COLLAPSE
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# gpg: Signature made Sat 24 Jan 2026 07:52:59 PM AEDT
# 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.
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# Subkey fingerprint: BCE9 123E 1AD2 9F07 C049 BBDE F712 B510 A23A 0F5F
* tag 'linux-user-for-v11-pull-request' of https://github.com/hdeller/qemu-hppa:
linux-user: Fix MADV_XXX constants on hppa target
linux-user: strace: Fix 5th argument of futex syscall
linux-user: fixup termios2 related things on PowerPC
linux-user: Add missing termios baud rates
linux-user: Add termios2 support to sparc target
linux-user: Add termios2 support to sh4 target
linux-user: Add termios2 support to mips target
linux-user: Add termios2 support to hppa target
linux-user: Add termios2 support to alpha target
linux-user: Add termios2 support
linux-user: update statx emulation
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Older hppa binaries may still use the old MADV_XXX constants for the
madivise() syscall. Fix it up in the same manner as it's done in the
Linux kernel in the parisc_madvise() function.
Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
- Removal of deprecated query-migrationthreads command
- Removal of deprecated QMP migrate argument 'detach'
- Removal of deprecated zero-blocks capability
- Removal of deprecated migration to file using fd: URI
- Improvements to fd handling in QEMUFile
- Cleanups to postcopy tests
- Cleanup of migration channel connection code
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Merge tag 'migration-20260123-pull-request' of https://gitlab.com/farosas/qemu into staging
Migration pull request
- Removal of deprecated query-migrationthreads command
- Removal of deprecated QMP migrate argument 'detach'
- Removal of deprecated zero-blocks capability
- Removal of deprecated migration to file using fd: URI
- Improvements to fd handling in QEMUFile
- Cleanups to postcopy tests
- Cleanup of migration channel connection code
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# 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!
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# Primary key fingerprint: AA1B 48B0 A223 26A5 A4C3 64CF C798 DC74 1BEC 319D
* tag 'migration-20260123-pull-request' of https://gitlab.com/farosas/qemu: (36 commits)
migration/channel: Centralize calling migration_channel_connect_outgoing
migration: Remove qmp_migrate_finish
migration: Move CPR HUP watch to cpr-transfer.c
migration: Free cpr-transfer MigrationAddress along with gsource
migration: Move URI parsing to channel.c
migration: Move channel parsing to channel.c
migration: Move transport connection code into channel.c
migration: Move channel code to channel.c
migration: Rename instances of start
migration/channel: Rename migration_channel_connect
migration: Start incoming from channel.c
migration/rdma: Use common connection paths
migration: Move setting of QEMUFile into migration_outgoing|incoming_setup
migration: Handle error in the early async paths
migration: Fold migration_cleanup() into migration_connect_error_propagate()
migration: yank: Move register instance earlier
migration: Expand migration_connect_error_propagate to cover cancelling
migration: Move error reporting out of migration_cleanup
migration: Free the error earlier in the resume case
migration: Use migrate_mode() to query for cpr-transfer
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* hw/arm/imx8mp-evk: Provide some defaults matching real hardware
* hw/intc: endianness fixes
* various: Clean up includes
* kernel-doc.py: sync with upstream Kernel v6.19-rc4
* scripts/clean-includes: Minor improvements; exclude list update
* docs/system/arm/imx8mp-evk: Avoid suggesting redundant CLI parameters
* docs/system/arm/xlnx-zynq.rst: Improve docs rendering
* docs: Be consistent about capitalization of 'Arm' (again)
* docs: Avoid unintended mailto: hyperlinks
* qemu-options.hx: Drop uses of @var
* qemu-options.hx: Improve formatting in colo-compare docs
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Merge tag 'pull-target-arm-20260123' of https://gitlab.com/pm215/qemu into staging
target-arm queue:
* hw/arm/imx8mp-evk: Provide some defaults matching real hardware
* hw/intc: endianness fixes
* various: Clean up includes
* kernel-doc.py: sync with upstream Kernel v6.19-rc4
* scripts/clean-includes: Minor improvements; exclude list update
* docs/system/arm/imx8mp-evk: Avoid suggesting redundant CLI parameters
* docs/system/arm/xlnx-zynq.rst: Improve docs rendering
* docs: Be consistent about capitalization of 'Arm' (again)
* docs: Avoid unintended mailto: hyperlinks
* qemu-options.hx: Drop uses of @var
* qemu-options.hx: Improve formatting in colo-compare docs
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# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [unknown]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [unknown]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [unknown]
# gpg: aka "Peter Maydell <peter@archaic.org.uk>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
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* tag 'pull-target-arm-20260123' of https://gitlab.com/pm215/qemu: (22 commits)
qemu-options.hx: Improve formatting in colo-compare docs
qemu-options.hx: Drop uses of @var
docs: avoid unintended mailto: hyperlinks
docs/system/arm/xlnx-zynq.rst: Improve docs rendering
hw/intc: avoid byte swap fiddling in gicv3 its path
hw/intc: declare GICv3 regions as little endian
hw/intc: declare GIC regions as little endian
hw/intc: declare NVIC regions as little endian
all: Clean up includes
misc: Clean up includes
bsd-user: Clean up includes
mshv: Clean up includes
scripts/clean-includes: Update exclude list
scripts/clean-includes: Give the args in git commit messages
scripts/clean-includes: Do all our exclusions with REGEXFILE
scripts/clean-includes: Make ignore-regexes one per line
scripts/clean-includes: Remove outdated comment
scripts/clean-includes: Allow directories on command line
docs: Be consistent about capitalization of 'Arm' (again)
kernel-doc.py: sync with upstream Kernel v6.19-rc4
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into staging
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# gpg: Signature made Fri 23 Jan 2026 11:16:43 PM AEDT
# gpg: using RSA key 215D46F48246689EC77F3562EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.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: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211
* tag 'net-pull-request' of https://github.com/jasowang/qemu:
tests/qtest: Add test for filter-redirector rx event opened
qtest: add a test to test redirector status change
net/filter-redirector: add support for dynamic status on/off switching
tests/qtest: add test for filter-buffer interval change
net/filter-buffer: make interval change take effect immediately
net/tap: rework tap_set_sndbuf()
net/tap: tap_set_sndbuf(): add return value
net/tap: setup exit notifier only when needed
net/tap: rework scripts handling
net/tap: pass NULL to net_init_tap_one() in cases when scripts are NULL
net/tap: net_init_tap_one(): move parameter checking earlier
net/tap: net_init_tap_one(): drop extra error propagation
net/tap-linux.c: avoid abort when setting invalid fd
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The 5th argument isn't printed, but instead the 4th argument is shown twice.
Fix this, and print the FUTEX_BITSET_MATCH_ANY string constant instead of -1
if the op is FUTEX_WAIT_BITSET or FUTEX_WAKE_BITSET.
Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Add several missing baud rates and inputs baud rates in cflag_tbl.
Add these missing definitions in termbits.h:
- TARGET_BOTHER for alpha, hppa, ppc, sh4, sparc
- TARGET_IBSHIFT for hppa, mips, ppc, sh4, sparc
- Missing standard baud rates for hppa
These are required for the glibc test tst-termios-linux.
Link: https://lore.kernel.org/qemu-devel/20251203-linux-user-higher-baud-rates-v2-1-e45b35224437@iscas.ac.cn
Signed-off-by: Vivian Wang <wangruikang@iscas.ac.cn>
Reviewed-by: Helge Deller <deller@gmx.de>
Make the synchronous calls evident by not hiding the call to
migration_channel_connect_outgoing() in the transport code. Have those
functions return and call the function at the upper level.
This helps with navigation: the transport code returns the ioc,
there's no need to look into them when browsing the code.
It also allows RDMA in the source side to use the same path as the
rest of the transports.
While here, document the async calls which are the exception.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-26-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
After cleanups, the qmp_migrate_finish function is now just a call to
migration_connect_outgoing(). Remove qmp_migrate_finish() and rename
the qmp_migrate_finish_cb callback.
This also allows the function's error handling to be removed as it now
receives &local_err like the rest of the callees of qmp_migrate().
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-25-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Move this CPR-specific code into a cpr file. While here, give the
functions more significant names.
This makes the new idea (after cpr-transfer) of having two parts to
qmp_migrate slightly more obvious: either wait for the hangup or
continue directly.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-24-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
When setting a callback on a Glib source and giving it a data pointer,
it's natural to also provide the destructor for the data in question.
Since migrate_hup_add() already needs to clone the MigrationAddress
when setting the qmp_migrate_finish_cb callback, also pass the
qapi_free_MigrationAddress as the GDestroyNotify callback.
With this the address doesn't need to be freed at the callback body,
making the management of that memory slightly simpler.
Cc: Mark Kanda <mark.kanda@oracle.com>
Cc: Ben Chaney <bchaney@akamai.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-23-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
The migrate_uri_parse function is responsible for converting the URI
string into a MigrationChannel for consumption by the rest of the
code. Move it to channel.c and add a wrapper that calls both URI and
channels parsing.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-22-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Encapsulate the MigrationChannelList parsing in a new
migrate_channels_parse() located at channel.c.
This also makes the memory management of the MigrationAddress more
uniform. Previously, half the parsing code (uri parsing) would
allocate memory for the address while the other half (channel parsing)
would instead pass the original QAPI object along. After this patch,
the MigrationAddress is always QAPI_CLONEd, so the callers can use
g_autoptr(MigrationAddress) in all cases.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-21-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Move the <transport>_connect_incoming|outgoing functions to channel.c.
It leaves migration.c to deal with the established connection only.
While here, sort the includes.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-20-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Move the code responsible for the various channels connection into
channel.c. This is all executed before the migration_thread and
process_incoming_migration_co are running, so it helps the reasoning
to have them out of migration.c.
migration_ioc_process_incoming becomes migration_channel_identify
which is more in line with what the function does.
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-19-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
To make it easier to follow the code, rename the functions that start
the migration thread and migration coroutine to contain the word
"start".
This will give new contributors the chance of seeing the word start
and reaching the actual migration code, instead of twists and turns of
qio_channel_add_watch and qio_task_run_in_thread.
Remove all other instances of "start" and use wording more suitable to
what the current migration stage is. The transport code such as
fd_start_migration_outgoing becomes fd_connect_outgoing, the early
setup code such as qemu_start_incoming_migration becomes
qemu_setup_incoming_migration and so on.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-18-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Rename migration_channel_connect to indicate this is the source
side. Future patches will do similar changes to the incoming side and
this will avoid inconsistencies in naming.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-17-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Leave migration_ioc_process_incoming to do only the channel
identification process and move the migration start into
channel.c. Both routines will be renamed in the next patches to better
reflect their usage.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-16-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Use the common connection paths for the incoming and outgoing sides of
rdma migration. This removes one usage of QEMUFile from rdma.c. It
also allows further unification of the connection code in next
patches.
Move the channels enum to channel.h so rdma.c can access it. The RDMA
channel is considered a CH_MAIN channel.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-15-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Centralize, on both sides of migration, the setting of the to_src_file
and from_dst_file QEMUFiles. This will clean up the interface with
channel.c and rdma.c, allowing those files to stop dealing with
QEMUFile themselves.
(multifd_recv_new_channel was changed to return bool+errp for
convenience)
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-14-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Simplify migration_channel_connect() and migration_connect() to not
take an error as input. Move the error handling into the paths that
generate the error.
To achieve this, call migration_connect_error_propagate() from
socket.c and tls.c, which are the async paths.
For the sync paths, the handling is done as normal by returning all
the way to qmp_migrate_finish(), except that now the sync paths don't
pass the error forward into migration_connect() anymore.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-13-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Whenever an error occurs between migrate_init() and the start of
migration_thread, do cleanup immediately.
This allows the special casing for resume to be removed from
migration_connect(), that check is now done at
migration_connect_error_propagate() which already had a case for
resume.
The cleanup at qmp_migrate_finish_cb can also be removed because it
will always be reached either via the error path at
qmp_migrate_finish->migration_connect_error_propagate or via the
migrate_cleanup_bh.
The yank_unregister_instance at qmp_migrate() is now replaced by the
one at migration_cleanup().
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-12-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Move the register_instance call to migrate_prepare() so it can be
paired with the unregister_instance at migration_cleanup(). Otherwise,
the cleanup cannot be run when cpr_state_save() fails because the
instance is registered only after it.
When resuming from a paused postcopy migration, migrate_prepare()
returns early, but migration_cleanup() doesn't run, so the yank will
remain paired.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-11-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Cover the CANCELLING state in migration_connect_error_propagate() and
use it to funnel errors from migrate_prepare() until the end of
migration_connect().
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-10-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
In the next patches migration_cleanup() will be used in qmp_migrate(),
which currently does not show an error message. Move the error
reporting out of migration_cleanup() to avoid duplicate messages.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-9-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Freeing the error at migration_connect() is redundant in the normal
migration case. The freeing already happened at migrate_init():
qmp_migrate()
-> migrate_prepare()
-> migrate_init()
-> qmp_migrate_finish()
-> *_start_outgoing_migration()
-> migration_channel_connect()
-> migration_connect()
For the resume case, migrate_prepare() returns early and doesn't reach
migrate_init(). Move the extra migrate_error_free() call to
migrate_prepare() along with the resume check.
Also change migrate_init() to use migrate_error_free(), so it's easier
to see where are the places the error gets freed.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-8-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
cpr_set_incoming_mode() is only called on the target side, so
migrate_mode() on the source side is the same as s->parameters.mode.
Use the function to reduce explicit access to s->parameters, we have
options.c for that.
Cc: Mark Kanda <mark.kanda@oracle.com>
Cc: Ben Chaney <bchaney@akamai.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-7-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
The postcopy_try_recover() call doesn't need to be duplicated, move it
into migration_incoming_process().
This removes code from migration_fd_process_incoming() so it can be
removed in the near future.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-6-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
The TLS hostname is doing a tour around the world just to be cached
into s->hostname. We're already abusing MigrationState by doing that,
so incorporate the s->hostname into migration_tls_hostname() and stop
passing the string around.
The old route was roughly:
-transport code (socket.c, fd.c, etc):
if (SOCKET_ADDRESS_TYPE_INET)
hostname = saddr->u.inet.host
else
hostname = NULL
migration_channel_connect(..., hostname)
s->hostname = hostname;
migration_tls_client_create(..., hostname)
if (migrate_tls_hostname())
qio_channel_tls_new_client(migrate_tls_hostname())
else
qio_channel_tls_new_client(hostname)
-postcopy_preempt_setup:
postcopy_preempt_send_channel_new
migration_tls_client_create(..., s->hostname)
New route is:
-socket.c only:
if SOCKET_ADDRESS_TYPE_INET
s->hostname = saddr->u.inet.host
migration_channel_connect()
migration_tls_client_create()
qio_channel_tls_new_client(migrate_tls_hostname())
-postcopy_preempt_setup:
postcopy_preempt_send_channel_new
migration_tls_client_create()
qio_channel_tls_new_client(migrate_tls_hostname())
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-5-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
The MigrationState parameter is not used at
migration_tls_channel_process_incoming().
The last usage was removed by commit 3f461a0c0b ("migration: Drop
unused parameter for migration_tls_get_creds()")
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-4-farosas@suse.de
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Thomas Huth
Daniel P. Berrangé
Richard Henderson
Mark Cave-Ayland
Nicolin Chen
Shameer Kolothum
Jim Shu
Zhenzhong Duan
Helge Deller
Icenowy Zheng
Vivian Wang
Luca Bonissi
Andreas Schwab
Fabiano Rosas