Avihai Horon 94f775e428 vfio/migration: Add P2P support for VFIO migration ... VFIO migration uAPI defines an optional intermediate P2P quiescent state. While in the P2P quiescent state, P2P DMA transactions cannot be initiated by the device, but the device can respond to incoming ones. Additionally, all outstanding P2P transactions are guaranteed to have been completed by the time the device enters this state. The purpose of this state is to support migration of multiple devices that might do P2P transactions between themselves. Add support for P2P migration by transitioning all the devices to the P2P quiescent state before stopping or starting the devices. Use the new VMChangeStateHandler prepare_cb to achieve that behavior. This will allow migration of multiple VFIO devices if all of them support P2P migration. Signed-off-by: Avihai Horon <avihaih@nvidia.com> Tested-by: YangHang Liu <yanghliu@redhat.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Signed-off-by: Cédric Le Goater <clg@redhat.com>		2023-09-11 08:34:05 +02:00
..
acpi-bits.rst	Revert "tests: Use separate virtual environment for avocado"	2023-08-28 09:55:48 +02:00
atomics.rst	atomics: eliminate mb_read/mb_set	2023-06-06 09:42:14 +02:00
bitops.rst	docs: Create bitops.rst as example of kernel-docs	2019-12-17 19:36:57 +01:00
blkdebug.txt	docs/: fix some comment spelling errors	2020-09-17 20:37:13 +02:00
blkverify.txt	meson: link emulators without Makefile.target	2020-08-21 06:30:40 -04:00
block-coroutine-wrapper.rst	block-coroutine-wrapper.py: introduce co_wrapper	2022-12-15 16:07:43 +01:00
build-system.rst	meson: list leftover CONFIG_* symbols	2023-09-07 13:32:37 +02:00
ci-definitions.rst.inc	tests/acceptance: rename tests acceptance to tests avocado	2021-11-08 17:00:22 +01:00
ci-jobs.rst.inc	gitlab: enable ccache for many build jobs	2023-08-30 14:57:33 +01:00
ci-runners.rst.inc	docs: name included files ".rst.inc"	2021-10-01 19:04:45 +02:00
ci.rst	docs/devel: clean-up the CI links in the docs	2022-06-01 18:55:04 +01:00
clocks.rst	clock: Provide builtin multiplier/divider	2021-09-01 11:08:19 +01:00
code-of-conduct.rst	docs/devel: add a maintainers section to development process	2022-11-22 09:49:07 +00:00
conflict-resolution.rst	docs: Add a QEMU Code of Conduct and Conflict Resolution Policy document	2021-04-01 13:21:02 +02:00
control-flow-integrity.rst	Fix typo in CFI build documentation	2021-05-02 17:24:50 +02:00
decodetree.rst	docs: Document decodetree named field syntax	2023-05-30 10:55:39 -07:00
ebpf_rss.rst	docs/devel/ebpf_rss.rst: Format literals correctly	2021-08-02 11:42:38 +01:00
fuzzing.rst	docs/fuzz: remove mentions of fork-based fuzzing	2023-02-16 23:02:46 -05:00
index-api.rst	docs/devel: split qom-api reference into new file	2023-07-03 12:52:22 +01:00
index-build.rst	acpi/tests/avocado/bits/doc: add a doc file to describe the acpi bits test	2022-11-02 06:56:32 -04:00
index-internals.rst	docs/devel: start documenting writing VirtIO devices	2022-05-16 04:38:40 -04:00
index-process.rst	docs/devel: add some front matter to the devel index	2023-07-03 12:52:08 +01:00
index-tcg.rst	docs/devel: add some front matter to the devel index	2023-07-03 12:52:08 +01:00
index.rst	docs/devel: add some front matter to the devel index	2023-07-03 12:52:08 +01:00
kconfig.rst	configure, meson: remove target OS symbols from config-host.mak	2023-09-07 13:32:37 +02:00
loads-stores.rst	bswap: Add the ability to store to an unaligned 24 bit field	2023-06-22 18:55:14 -04:00
lockcnt.txt	docs: fix references to docs/devel/atomics.rst	2021-06-02 06:51:09 +02:00
maintainers.rst	docs/devel: add a maintainers section to development process	2022-11-22 09:49:07 +00:00
memory.rst	docs/devel: add some clarifying text for aliases	2022-01-18 12:56:29 +01:00
migration.rst	docs/migration: Update postcopy bits	2023-07-26 10:55:56 +02:00
modules.rst	docs: Spell QEMU all caps	2021-11-19 10:16:58 +01:00
multi-process.rst	docs: Render binary names as monospaced text	2021-11-22 15:02:38 +01:00
multi-thread-tcg.rst	docs: Spell QEMU all caps	2021-11-19 10:16:58 +01:00
multiple-iothreads.txt	async: Add an optional reentrancy guard to the BH API	2023-04-28 11:31:07 +02:00
qapi-code-gen.rst	docs/interop: Convert qmp-spec.txt to rST	2023-05-22 10:21:01 +02:00
qdev-api.rst	docs/devel: split qom-api reference into new file	2023-07-03 12:52:22 +01:00
qgraph.rst	Fix some typos in documentation (found by codespell)	2021-11-22 15:02:38 +01:00
qom-api.rst	docs/devel: split qom-api reference into new file	2023-07-03 12:52:22 +01:00
qom.rst	misc: Fix some typos in documentation and comments	2023-08-01 23:52:23 +02:00
qtest.rst	tests: move libqtest.h back under qtest/	2022-05-03 15:16:51 +04:00
rcu.txt	Docs/RCU: Correct sample code of qatomic_rcu_set	2021-01-12 12:38:03 +01:00
replay.rst	docs: move replay docs to docs/system/replay.rst	2022-06-06 09:26:54 +02:00
reset.rst	hw/core/resettable: fix reset level counting	2022-10-27 10:27:23 +01:00
s390-dasd-ipl.rst	docs: rstfy s390 dasd ipl documentation	2020-02-26 18:57:07 +01:00
secure-coding-practices.rst	docs/secure-coding-practices: Describe how to use 'null-co' block driver	2021-06-02 14:29:14 +02:00
stable-process.rst	docs: Fix botched rST conversion of 'submitting-a-patch.rst'	2021-11-22 15:02:38 +01:00
style.rst	docs/style: permit inline loop variables	2023-08-30 14:57:44 +01:00
submitting-a-patch.rst	docs/devel: try and improve the language around patch review	2022-11-22 09:52:23 +00:00
submitting-a-pull-request.rst	docs/devel: add a maintainers section to development process	2022-11-22 09:49:07 +00:00
tcg-icount.rst	tcg: Drop gen_io_end()	2021-09-08 11:09:45 +01:00
tcg-ops.rst	docs/devel/tcg-ops: fix missing newlines in "Host vector operations"	2023-08-24 11:22:42 -07:00
tcg-plugins.rst	docs: add a new section to outline emulation support	2023-02-02 10:44:23 +00:00
tcg.rst	docs/devel: add some front matter to the devel index	2023-07-03 12:52:08 +01:00
testing.rst	Revert "tests: Use separate virtual environment for avocado"	2023-08-28 09:55:48 +02:00
tracing.rst	docs: trace-events-all is installed without renaming	2022-04-21 17:03:51 +04:00
trivial-patches.rst	docs: Fix botched rST conversion of 'submitting-a-patch.rst'	2021-11-22 15:02:38 +01:00
ui.rst	docs: Spell QEMU all caps	2021-11-19 10:16:58 +01:00
vfio-migration.rst	vfio/migration: Add P2P support for VFIO migration	2023-09-11 08:34:05 +02:00
virtio-backends.rst	docs/devel: start documenting writing VirtIO devices	2022-05-16 04:38:40 -04:00
virtio-migration.txt	docs: create config/, devel/ and spin/ subdirectories	2017-06-07 18:22:03 +02:00
writing-monitor-commands.rst	qapi: Start to elide redundant has_FOO in generated C	2022-12-13 18:31:37 +01:00
zoned-storage.rst	docs/zoned-storage:add zoned emulation use case	2023-05-15 08:19:04 -04:00