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author	Andrey Gruzdev <andrey.gruzdev@virtuozzo.com>
	Fri, 29 Jan 2021 10:14:04 +0000 (13:14 +0300)
committer	Dr. David Alan Gilbert <dgilbert@redhat.com>
	Mon, 8 Feb 2021 11:19:51 +0000 (11:19 +0000)
commit	0e9b5cd6b238b7ca9a3a50d957f50c37082705a0
tree	e97bd85a81861d9885b274b6d6b48159a3502632	tree
parent	6e8c25b4c623f755f588893661fec77ae88e128a	commit \| diff

migration: introduce UFFD-WP low-level interface helpers

Glue code to the userfaultfd kernel implementation.
Querying feature support, createing file descriptor, feature control,
memory region registration, IOCTLs on registered registered regions.

Signed-off-by: Andrey Gruzdev <andrey.gruzdev@virtuozzo.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210129101407.103458-3-andrey.gruzdev@virtuozzo.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Fixed up range.start casting for 32bit

include/exec/memory.h		diff \| blob \| blame \| history
include/qemu/userfaultfd.h	[new file with mode: 0644]	blob
util/meson.build		diff \| blob \| blame \| history
util/trace-events		diff \| blob \| blame \| history
util/userfaultfd.c	[new file with mode: 0644]	blob