Merge tag 'migration-20240126-pull-request' of https://gitlab.com/peterx/qemu into staging

Migration Pull

[dropped fabiano's patch on modifying cpu model for arm migration tests for
now]

- Fabian

Merge tag 'migration-20240126-pull-request' of https://gitlab.com/peterx/qemu into staging

Migration Pull

[dropped fabiano's patch on modifying cpu model for arm migration tests for
now]

- Fabiano's patchset to fix migration state references in BHs
- Fabiano's new 'n-1' migration test for CI
- Het's fix on making "uri" optional in QMP migrate cmd
- Markus's HMP leak fix reported by Coverity
- Paolo's cleanup on uffd to replace u64 usage
- Peter's small migration cleanup series all over the places

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# gpg: Signature made Mon 29 Jan 2024 03:03:20 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-20240126-pull-request' of https://gitlab.com/peterx/qemu:
Make 'uri' optional for migrate QAPI
migration: Centralize BH creation and dispatch
migration: Add a wrapper to qemu_bh_schedule
migration: Reference migration state around loadvm_postcopy_handle_run_bh
migration: Take reference to migration state around bg_migration_vm_start_bh
migration: Fix use-after-free of migration state object
migration/yank: Use channel features
ci: Disable migration compatibility tests for aarch64
ci: Add a migration compatibility test job
analyze-migration.py: Remove trick on parsing ramblocks
migration: Drop unnecessary check in ram's pending_exact()
migration: Make threshold_size an uint64_t
migration: Plug memory leak on HMP migrate error path
userfaultfd: use 1ULL to build ioctl masks

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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migration/yank: Use channel features

Stop using outside knowledge about the io channels when registering
yank functions. Query for features instead.

The yank method for all channels used with migra

migration/yank: Use channel features

Stop using outside knowledge about the io channels when registering
yank functions. Query for features instead.

The yank method for all channels used with migration code currently is
to call the qio_channel_shutdown() function, so query for
QIO_CHANNEL_FEATURE_SHUTDOWN. We could add a separate feature in the
future for indicating whether a channel supports yanking, but that
seems overkill at the moment.

Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20230911171320.24372-9-farosas@suse.de
Signed-off-by: Peter Xu <peterx@redhat.com>

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Merge tag 'pull-request-2023-06-06' of https://gitlab.com/thuth/qemu into staging

* Fix emulated LCCB, LOCFHR, MXDB and MXDBR s390x instructions
* Fix the malta machine on s390x (big endian) hosts
*

Merge tag 'pull-request-2023-06-06' of https://gitlab.com/thuth/qemu into staging

* Fix emulated LCCB, LOCFHR, MXDB and MXDBR s390x instructions
* Fix the malta machine on s390x (big endian) hosts
* Emulate /proc/cpuinfo on s390x
* Remove pointless QOM casts
* Improve the inclusion logic for libkeyutils and ipmi-bt-test in meson.build

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# gpg: Signature made Mon 05 Jun 2023 10:53:12 PM PDT
# gpg: using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg: issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [unknown]
# gpg: aka "Thomas Huth <thuth@redhat.com>" [unknown]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# gpg: aka "Thomas Huth <huth@tuxfamily.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: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2023-06-06' of https://gitlab.com/thuth/qemu:
linux-user: Emulate /proc/cpuinfo on s390x
linux-user/elfload: Introduce elf_hwcap_str() on s390x
linux-user/elfload: Expose get_elf_hwcap() on s390x
s390x/tcg: Fix CPU address returned by STIDP
bulk: Remove pointless QOM casts
scripts: Add qom-cast-macro-clean-cocci-gen.py
hw/mips/malta: Fix the malta machine on big endian hosts
gitlab-ci: Remove unused Python package
tests/qtest: Run ipmi-bt-test only if CONFIG_IPMI_EXTERN is set
tests/tcg/s390x: Test MXDB and MXDBR
target/s390x: Fix MXDB and MXDBR
Add conditional dependency for libkeyutils
tests/tcg/s390x: Test single-stepping SVC
linux-user/s390x: Fix single-stepping SVC
tests/tcg/s390x: Test LOCFHR
target/s390x: Fix LOCFHR taking the wrong half of R2
tests/tcg/s390x: Test LCBB
target/s390x: Fix LCBB overwriting the top 32 bits

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

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bulk: Remove pointless QOM casts

Mechanical change running Coccinelle spatch with content
generated from the qom-cast-macro-clean-cocci-gen.py added
in the previous commit.

Suggested-by: Markus Arm

bulk: Remove pointless QOM casts

Mechanical change running Coccinelle spatch with content
generated from the qom-cast-macro-clean-cocci-gen.py added
in the previous commit.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230601093452.38972-3-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>

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Merge remote-tracking branch 'remotes/dgilbert-gitlab/tags/pull-migration-20210726a' into staging

Migration fixes 2021-07-26

Peter's fix for a bunch of races
-> Seem to fix the occasional crash se

Merge remote-tracking branch 'remotes/dgilbert-gitlab/tags/pull-migration-20210726a' into staging

Migration fixes 2021-07-26

Peter's fix for a bunch of races
-> Seem to fix the occasional crash seen by Peter

Wei's fix for migration with free page hinting
-> Bug has been around for a while, but makes a huge difference

My fix for OpenBSD test corner case

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

# gpg: Signature made Mon 26 Jul 2021 13:42:16 BST
# gpg: using RSA key 45F5C71B4A0CB7FB977A9FA90516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" [full]
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A 9FA9 0516 331E BC5B FDE7

* remotes/dgilbert-gitlab/tags/pull-migration-20210726a:
migration: clear the memory region dirty bitmap when skipping free pages
migration: Move the yank unregister of channel_close out
migration: Teach QEMUFile to be QIOChannel-aware
migration: Introduce migration_ioc_[un]register_yank()
migration: Make from_dst_file accesses thread-safe
migration: Fix missing join() of rp_thread
tests/qtest/migration-test.c: use 127.0.0.1 instead of 0

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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migration: Move the yank unregister of channel_close out

It's efficient, but hackish to call yank unregister calls in channel_close(),
especially it'll be hard to debug when qemu crashed with some y

migration: Move the yank unregister of channel_close out

It's efficient, but hackish to call yank unregister calls in channel_close(),
especially it'll be hard to debug when qemu crashed with some yank function
leaked.

Remove that hack, but instead explicitly unregister yank functions at the
places where needed, they are:

(on src)
- migrate_fd_cleanup
- postcopy_pause

(on dst)
- migration_incoming_state_destroy
- postcopy_pause_incoming

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210722175841.938739-6-peterx@redhat.com>
Reviewed-by: Lukas Straub <lukasstraub2@web.de>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

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migration: Introduce migration_ioc_[un]register_yank()

There're plenty of places in migration/* that checks against either socket or
tls typed ioc for yank operations. Provide two helpers to hide a

migration: Introduce migration_ioc_[un]register_yank()

There're plenty of places in migration/* that checks against either socket or
tls typed ioc for yank operations. Provide two helpers to hide all these
information.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210722175841.938739-4-peterx@redhat.com>
Reviewed-by: Lukas Straub <lukasstraub2@web.de>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

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Merge remote-tracking branch 'remotes/marcandre/tags/for-6.0-pull-request' into staging

For 6.0 misc patches under my radar.

V2:
- "tests: Add tests for yank with the chardev-change case" updated

Merge remote-tracking branch 'remotes/marcandre/tags/for-6.0-pull-request' into staging

For 6.0 misc patches under my radar.

V2:
- "tests: Add tests for yank with the chardev-change case" updated
- drop the readthedoc theme patch

# gpg: Signature made Thu 01 Apr 2021 12:54:52 BST
# gpg: using RSA key 87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg: issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [full]
# gpg: aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [full]
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276 F62D DAE8 E109 7596 9CE5

* remotes/marcandre/tags/for-6.0-pull-request:
tests: Add tests for yank with the chardev-change case
chardev: Fix yank with the chardev-change case
chardev/char.c: Always pass id to chardev_new
chardev/char.c: Move object_property_try_add_child out of chardev_new
yank: Always link full yank code
yank: Remove dependency on qiochannel
docs: simplify each section title
dbus-vmstate: Increase the size of input stream buffer used during load
util: fix use-after-free in module_load_one

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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yank: Remove dependency on qiochannel

Remove dependency on qiochannel by removing yank_generic_iochannel and
letting migration and chardev use their own yank function for
iochannel.

Signed-off-by:

yank: Remove dependency on qiochannel

Remove dependency on qiochannel by removing yank_generic_iochannel and
letting migration and chardev use their own yank function for
iochannel.

Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20ff143fc2db23e27cd41d38043e481376c9cec1.1616521341.git.lukasstraub2@web.de>

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