diff mbox series

KVM: x86/mmu: fix counting of rmap entries in pte_list_add

Message ID 1598952415-19706-1-git-send-email-lirongqing@baidu.com (mailing list archive)
State New, archived
Headers show
Series KVM: x86/mmu: fix counting of rmap entries in pte_list_add | expand

Commit Message

Li RongQing Sept. 1, 2020, 9:26 a.m. UTC 
counting of rmap entries was missed when desc->sptes is full
and desc->more is false

Cc: <stable@vger.kernel.org>
Signed-off-by: Li RongQing <lirongqing@baidu.com>
---
 arch/x86/kvm/mmu/mmu.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index a5d0207e7189..8ffa4e40b650 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -1280,6 +1280,7 @@  static int pte_list_add(struct kvm_vcpu *vcpu, u64 *spte,
 		if (desc->sptes[PTE_LIST_EXT-1]) {
 			desc->more = mmu_alloc_pte_list_desc(vcpu);
 			desc = desc->more;
+			count += PTE_LIST_EXT;
 		}
 		for (i = 0; desc->sptes[i]; ++i)
 			++count;