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qemu/include/exec
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Yuan Liu 5ef7e26bdb migration/multifd: solve zero page causing multiple page faults 
Implemented recvbitmap tracking of received pages in multifd.

If the zero page appears for the first time in the recvbitmap, this
page is not checked and set.

If the zero page has already appeared in the recvbitmap, there is no
need to check the data but directly set the data to 0, because it is
unlikely that the zero page will be migrated multiple times.

Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240401154110.2028453-2-yuan1.liu@intel.com
[peterx: touch up the comment, as the bitmap is used outside postcopy now]
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-04-23 18:36:01 -04:00
..
user thunk: Delete checks for old host definitions 2023-09-15 05:26:50 -07:00
address-spaces.h exec/address-spaces.h: Remove unuseful 'exec/memory.h' include 2023-08-31 19:47:43 +02:00
confidential-guest-support.h confidential guest support: Introduce cgs "ready" flag 2021-02-08 16:57:38 +11:00
cpu-all.h accel/tcg: Add TLB_CHECK_ALIGNED 2024-03-05 13:22:56 +00:00
cpu-common.h cpu: Remove page_size_init 2024-02-29 11:35:37 -10:00
cpu-defs.h accel/tcg: Move CPUTLB definitions from cpu-defs.h 2023-10-03 08:01:02 -07:00
cpu_ldst.h include/exec: typedef abi_ptr to vaddr 2024-01-29 07:06:03 +10:00
cputlb.h accel/tcg: Move HMP info jit and info opcount code 2023-11-06 08:27:21 -08:00
exec-all.h physmem: Expose tlb_reset_dirty_range_all() 2024-03-12 17:39:40 -04:00
gdbstub.h gdbstub: expose api to find registers 2024-02-28 09:11:42 +00:00
helper-gen-common.h tcg: Split helper-gen.h 2023-06-05 12:04:29 -07:00
helper-gen.h tcg: Split helper-gen.h 2023-06-05 12:04:29 -07:00
helper-gen.h.inc tcg: Split helper-gen.h 2023-06-05 12:04:29 -07:00
helper-head.h tcg: Move env defines out of NEED_CPU_H in helper-head.h 2023-06-05 12:04:29 -07:00
helper-info.c.inc tcg: Pass TCGHelperInfo to tcg_gen_callN 2023-06-05 12:04:29 -07:00
helper-proto-common.h tcg: Use HAVE_CMPXCHG128 instead of CONFIG_CMPXCHG128 2023-07-15 08:02:49 +01:00
helper-proto.h tcg: Split helper-proto.h 2023-06-05 12:04:29 -07:00
helper-proto.h.inc tcg: Split helper-proto.h 2023-06-05 12:04:29 -07:00
hwaddr.h bulk: Rename TARGET_FMT_plx -> HWADDR_FMT_plx 2023-01-18 11:14:34 +01:00
ioport.h exec/ioport: Add portio_list_set_enabled() 2024-02-14 06:09:32 -05:00
log.h include/exec/log: Do not reference QemuLogFile directly 2022-04-20 10:51:11 -07:00
memattrs.h accel/tcg: Add tlb_fill_flags to CPUTLBEntryFull 2024-03-05 13:22:56 +00:00
memop.h include/exec/memop: Add MO_ATOM_* 2023-05-16 15:21:38 -07:00
memopidx.h Normalize header guard symbol definition 2022-05-11 16:50:26 +02:00
memory-internal.h exec/memory: Expose memory_region_access_valid() 2023-01-09 13:50:13 +01:00
memory.h memory: Add Error** argument to the global_dirty_log routines 2024-04-23 18:36:01 -04:00
memory_ldst.h.inc bulk: Do not declare function prototypes using 'extern' keyword 2023-08-31 19:47:43 +02:00
memory_ldst_cached.h.inc exec/memory_ldst_cached: Use correct type size 2021-05-26 08:35:51 -07:00
memory_ldst_phys.h.inc exec/memory_ldst_phys: Use correct type sizes 2021-05-26 08:35:51 -07:00
page-vary.h bulk: Do not declare function prototypes using 'extern' keyword 2023-08-31 19:47:43 +02:00
plugin-gen.h plugins: Set final instruction count in plugin_gen_tb_end 2023-10-11 08:46:39 +01:00
poison.h accel: Remove HAX accelerator 2023-08-31 19:46:43 +02:00
ram_addr.h physmem: Fix migration dirty bitmap coherency with TCG memory access 2024-03-12 17:39:40 -04:00
ramblock.h migration/multifd: solve zero page causing multiple page faults 2024-04-23 18:36:01 -04:00
ramlist.h qapi: introduce x-query-ramblock QMP command 2021-11-02 15:55:14 +00:00
replay-core.h replay: Extract core API to 'exec/replay-core.h' 2023-02-27 22:29:01 +01:00
target_long.h tcg: Define MO_TL 2023-10-22 16:34:21 -07:00
target_page.h softmmu: Introduce qemu_target_page_mask() helper 2023-06-23 02:54:44 -04:00
tb-flush.h accel/tcg: Declare tcg_flush_jmp_cache() in 'exec/tb-flush.h' 2023-11-07 12:13:27 +01:00
tlb-common.h tcg: Add tlb_fast_offset to TCGContext 2023-06-05 12:04:28 -07:00
translate-all.h accel/tcg: Remove tb_invalidate_phys_page() from system emulation 2024-01-19 12:28:59 +01:00
translation-block.h tcg: Make tb_cflags() usable from target-agnostic code 2024-01-29 21:04:10 +10:00
translator.h accel/tcg: Improve can_do_io management 2024-04-09 07:45:10 -10:00
tswap.h include/exec: Provide the tswap() functions for target independent code, too 2023-04-20 11:25:32 +02:00
vaddr.h include/exec: Move vaddr defines to separate file 2024-01-29 07:06:03 +10:00