qemu/include
Andrey Gruzdev 278e2f551a migration: support UFFD write fault processing in ram_save_iterate()
In this particular implementation the same single migration
thread is responsible for both normal linear dirty page
migration and procesing UFFD page fault events.

Processing write faults includes reading UFFD file descriptor,
finding respective RAM block and saving faulting page to
the migration stream. After page has been saved, write protection
can be removed. Since asynchronous version of qemu_put_buffer()
is expected to be used to save pages, we also have to flush
migraion stream prior to un-protecting saved memory range.

Write protection is being removed for any previously protected
memory chunk that has hit the migration stream. That's valid
for pages from linear page scan along with write fault pages.

Signed-off-by: Andrey Gruzdev <andrey.gruzdev@virtuozzo.com>
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20210129101407.103458-4-andrey.gruzdev@virtuozzo.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  fixup pagefault.address cast for 32bit
2021-02-08 11:19:51 +00:00
..
authz Prefer 'on' | 'off' over 'yes' | 'no' for bool options 2021-01-29 17:07:53 +00:00
block nbd: make nbd_read* return -EIO on error 2021-02-03 08:17:12 -06:00
chardev chardev: do not use machine_init_done 2020-12-15 12:51:51 -05:00
crypto qom: Remove module_obj_name parameter from OBJECT_DECLARE* macros 2020-09-18 14:12:32 -04:00
disas disas: Push const down through host disassembly 2021-01-07 05:09:42 -10:00
exec migration: support UFFD write fault processing in ram_save_iterate() 2021-02-08 11:19:51 +00:00
fpu softfloat: Define comparison operations for bfloat16 2020-08-29 19:25:42 -07:00
hw accel: introduce AccelCPUClass extending CPUClass 2021-02-05 10:24:15 -10:00
io io: Document qmp oob suitability of qio_channel_shutdown and io_shutdown 2021-01-13 10:21:17 +01:00
libdecnumber include: Make headers more self-contained 2019-08-16 13:31:51 +02:00
migration migration: Replace migration's JSON writer by the general one 2020-12-19 10:39:16 +01:00
monitor sev: add sev-inject-launch-secret 2020-12-10 17:33:17 -05:00
net net: checksum: Introduce fine control over checksum type 2021-01-25 17:04:56 +08:00
qapi qapi: Introduce QAPI_LIST_APPEND 2021-01-28 08:08:45 +01:00
qemu migration: introduce UFFD-WP low-level interface helpers 2021-02-08 11:19:51 +00:00
qom qom: Add user_creatable_print_help_from_qdict() 2020-10-15 16:06:27 +02:00
scsi scsi/utils: Add INVALID_PARAM_VALUE sense code definition 2021-01-22 14:51:35 +01:00
standard-headers Update linux headers to 5.11-rc2 2021-01-21 11:19:45 +01:00
sysemu accel: replace struct CpusAccel with AccelOpsClass 2021-02-05 10:24:15 -10:00
tcg tcg: Restart code generation when we run out of temps 2021-01-24 08:03:27 -10:00
ui display/ui: add a callback to indicate GL state is flushed 2021-02-04 15:58:54 +01:00
user trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
elf.h target-arm queue: 2020-10-29 11:40:04 +00:00
glib-compat.h glib-compat: add g_unix_get_passwd_entry_qemu() 2020-11-02 19:52:08 -06:00
qemu-common.h vl: extract softmmu/datadir.c 2020-12-10 12:15:18 -05:00
qemu-io.h Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
trace-tcg.h