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KVM: MMU: speed up mmu_unsync_walk

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Cache the unsynced children information in a per-page bitmap.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Marcelo Tosatti
2008-09-23 13:18:40 -03:00
committed by Avi Kivity
parent 4731d4c7a0
commit 0074ff63eb
2 changed files with 61 additions and 12 deletions
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include/asm-x86/kvm_host.h
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@@ -201,6 +201,7 @@ struct kvm_mmu_page {
u64 *parent_pte; /* !multimapped */
struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */
};
DECLARE_BITMAP(unsync_child_bitmap, 512);
};
struct kvm_pv_mmu_op_buffer {