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KVM: Provide helper to get kvm dirty log

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Provide a helper kvm_slot_get_dirty_log() to make the function
kvm_physical_sync_dirty_bitmap() clearer.  We can even cache the as_id
into KVMSlot when it is created, so that we don't even need to pass it
down every time.

Since at it, remove return value of kvm_physical_sync_dirty_bitmap()
because it should never fail.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210506160549.130416-5-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Peter Xu 2021-05-06 12:05:43 -04:00 • committed by Paolo Bonzini
parent ea776d15ad
commit e65e5f50db
2 changed files with 32 additions and 22 deletions
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2
include/sysemu/kvm_int.h
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@ -23,6 +23,8 @@ typedef struct KVMSlot
int old_flags;
/* Dirty bitmap cache for the slot */
unsigned long *dirty_bmap;
/* Cache of the address space ID */
int as_id;
} KVMSlot;
typedef struct KVMMemoryListener {