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memory: Introduce replay_discarded callback for RamDiscardManager

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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>
This commit is contained in:
David Hildenbrand 2021-10-11 19:53:38 +02:00 • committed by Juan Quintela
parent b7bc6b1828
commit adaf9d92f8
2 changed files with 32 additions and 0 deletions
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11
softmmu/memory.c
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@ -2081,6 +2081,17 @@ int ram_discard_manager_replay_populated(const RamDiscardManager *rdm,
return rdmc->replay_populated(rdm, section, replay_fn, opaque);
}
void ram_discard_manager_replay_discarded(const RamDiscardManager *rdm,
MemoryRegionSection *section,
ReplayRamDiscard replay_fn,
void *opaque)
{
RamDiscardManagerClass *rdmc = RAM_DISCARD_MANAGER_GET_CLASS(rdm);
g_assert(rdmc->replay_discarded);
rdmc->replay_discarded(rdm, section, replay_fn, opaque);
}
void ram_discard_manager_register_listener(RamDiscardManager *rdm,
RamDiscardListener *rdl,
MemoryRegionSection *section)