Fabiano Rosas 4ed49feb44 migration/ram: Introduce 'mapped-ram' migration capability ... Add a new migration capability 'mapped-ram'. The core of the feature is to ensure that RAM pages are mapped directly to offsets in the resulting migration file instead of being streamed at arbitrary points. The reasons why we'd want such behavior are: - The resulting file will have a bounded size, since pages which are dirtied multiple times will always go to a fixed location in the file, rather than constantly being added to a sequential stream. This eliminates cases where a VM with, say, 1G of RAM can result in a migration file that's 10s of GBs, provided that the workload constantly redirties memory. - It paves the way to implement O_DIRECT-enabled save/restore of the migration stream as the pages are ensured to be written at aligned offsets. - It allows the usage of multifd so we can write RAM pages to the migration file in parallel. For now, enabling the capability has no effect. The next couple of patches implement the core functionality. Acked-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Signed-off-by: Fabiano Rosas <farosas@suse.de> Link: https://lore.kernel.org/r/20240229153017.2221-8-farosas@suse.de Signed-off-by: Peter Xu <peterx@redhat.com>		2024-03-01 15:42:04 +08:00
..
migration	migration/ram: Introduce 'mapped-ram' migration capability	2024-03-01 15:42:04 +08:00
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: remove CONFIG_ALL	2023-12-31 09:11:28 +01:00
ci-definitions.rst.inc	tests/acceptance: rename tests acceptance to tests avocado	2021-11-08 17:00:22 +01:00
ci-jobs.rst.inc	docs: correct typos	2024-02-20 22:20:48 +03:00
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	docs: Constify VMstate in examples	2023-12-30 07:38:06 +11:00
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
docs.rst	docs: correct typos	2024-02-20 22:20:48 +03:00
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	hw/pci: modify pci_setup_iommu() to set PCIIOMMUOps	2023-11-03 09:20:31 +01:00
index-build.rst	docs/devel/docs: Document .hx file syntax	2024-01-15 17:12:22 +00:00
index-internals.rst	docs/migration: Create index page	2024-01-16 11:16:10 +08:00
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: rename targetos to host_os	2023-12-31 09:11:29 +01:00
loads-stores.rst	docs/devel/loads-stores: Fix git grep regexes	2023-09-21 14:45:57 +01:00
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
modules.rst	docs: Spell QEMU all caps	2021-11-19 10:16:58 +01:00
multi-process.rst	docs: Don't mention "-mem-path" in multi-process.rst	2023-09-19 10:23:21 +02:00
multi-thread-tcg.rst	docs/devel: plugins can trigger a tb flush	2024-02-28 09:11:42 +00:00
multiple-iothreads.txt	Rename "QEMU global mutex" to "BQL" in comments and docs	2024-01-08 10:45:43 -05:00
pci.rst	hw/pci: modify pci_setup_iommu() to set PCIIOMMUOps	2023-11-03 09:20:31 +01:00
qapi-code-gen.rst	qapi: Recognize section tags and 'Features:' only after blank line	2024-02-26 10:43:56 +01:00
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	include/qom/object.h: New OBJECT_DEFINE_SIMPLE_TYPE{, _WITH_INTERFACES} macros	2024-02-27 13:01:42 +00:00
qtest.rst	system: Rename softmmu/ directory as system/	2023-10-08 21:08:08 +02:00
rcu.txt	Docs/RCU: Correct sample code of qatomic_rcu_set	2021-01-12 12:38:03 +01:00
replay.rst	Rename "QEMU global mutex" to "BQL" in comments and docs	2024-01-08 10:45:43 -05:00
reset.rst	docs/devel/reset: Update to discuss system reset	2024-02-27 13:01:42 +00:00
s390-cpu-topology.rst	docs/s390: Fix wrong command example in s390-cpu-topology.rst	2023-11-28 14:27:18 +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	accel/tcg: Remove CF_LAST_IO	2023-11-14 10:40:54 -08:00
tcg-ops.rst	tcg: Introduce TCG_COND_TST{EQ,NE}	2024-02-03 23:43:47 +00:00
tcg-plugins.rst	docs/devel: document some plugin assumptions	2024-02-28 09:11:42 +00:00
tcg.rst	docs/devel: add some front matter to the devel index	2023-07-03 12:52:08 +01:00
testing.rst	tests/avocado: mark boot_linux.py long runtime instead of flaky	2024-02-23 23:16:34 +10:00
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-iommufd.rst	docs/devel: Add VFIO iommufd backend documentation	2023-12-19 19:03:38 +01:00
virtio-backends.rst	docs/devel: start documenting writing VirtIO devices	2022-05-16 04:38:40 -04:00
writing-monitor-commands.rst	qapi: Fix dangling references to docs/devel/qapi-code-gen.txt	2024-01-26 07:04:53 +01:00
zoned-storage.rst	docs/zoned-storage:add zoned emulation use case	2023-05-15 08:19:04 -04:00