diff options
| author | David Hildenbrand <david@redhat.com> | 2021-10-11 19:53:38 +0200 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2021-11-01 22:56:44 +0100 |
| commit | adaf9d92f868e6b9f23cb9a3929635e1ba961b3b (patch) | |
| tree | 057cd95747c5162213bdc88205d4facc302ed798 /include/exec/memory.h | |
| parent | b7bc6b182883bb3097dde2a25d041f28bde2b89c (diff) | |
memory: Introduce replay_discarded callback for RamDiscardManager
Introduce replay_discarded callback similar to our existing
replay_populated callback, to be used my migration code to never migrate
discarded memory.
Acked-by: Peter Xu <peterx@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'include/exec/memory.h')
| -rw-r--r-- | include/exec/memory.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/exec/memory.h b/include/exec/memory.h index 04280450c9..20f1b27377 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -550,6 +550,7 @@ static inline void ram_discard_listener_init(RamDiscardListener *rdl, } typedef int (*ReplayRamPopulate)(MemoryRegionSection *section, void *opaque); +typedef void (*ReplayRamDiscard)(MemoryRegionSection *section, void *opaque); /* * RamDiscardManagerClass: @@ -639,6 +640,21 @@ struct RamDiscardManagerClass { ReplayRamPopulate replay_fn, void *opaque); /** + * @replay_discarded: + * + * Call the #ReplayRamDiscard callback for all discarded parts within the + * #MemoryRegionSection via the #RamDiscardManager. + * + * @rdm: the #RamDiscardManager + * @section: the #MemoryRegionSection + * @replay_fn: the #ReplayRamDiscard callback + * @opaque: pointer to forward to the callback + */ + void (*replay_discarded)(const RamDiscardManager *rdm, + MemoryRegionSection *section, + ReplayRamDiscard replay_fn, void *opaque); + + /** * @register_listener: * * Register a #RamDiscardListener for the given #MemoryRegionSection and @@ -682,6 +698,11 @@ int ram_discard_manager_replay_populated(const RamDiscardManager *rdm, ReplayRamPopulate replay_fn, void *opaque); +void ram_discard_manager_replay_discarded(const RamDiscardManager *rdm, + MemoryRegionSection *section, + ReplayRamDiscard replay_fn, + void *opaque); + void ram_discard_manager_register_listener(RamDiscardManager *rdm, RamDiscardListener *rdl, MemoryRegionSection *section); |