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KVM: Simplify dirty log sync in kvm_set_phys_mem
kvm_physical_sync_dirty_bitmap() on the whole section is inaccurate, because the section can be a superset of the memslot that we're working on. The result is that if the section covers multiple kvm memslots, we could be doing the synchronization for multiple times for each kvmslot in the section. With the two helpers that we just introduced, it's very easy to do it right now by calling the helpers. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20210506160549.130416-7-peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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1 changed files with 2 additions and 1 deletions
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@ -1161,7 +1161,8 @@ static void kvm_set_phys_mem(KVMMemoryListener *kml,
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goto out;
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}
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if (mem->flags & KVM_MEM_LOG_DIRTY_PAGES) {
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kvm_physical_sync_dirty_bitmap(kml, section);
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kvm_slot_get_dirty_log(kvm_state, mem);
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kvm_slot_sync_dirty_pages(mem);
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}
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/* unregister the slot */
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