diff options
Diffstat (limited to 'arch/x86/kvm/mmu.c')
-rw-r--r-- | arch/x86/kvm/mmu.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 1ad39cf70e18..fbdca08b8d8c 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c | |||
@@ -612,19 +612,11 @@ static void rmap_remove(struct kvm *kvm, u64 *spte) | |||
612 | struct kvm_rmap_desc *desc; | 612 | struct kvm_rmap_desc *desc; |
613 | struct kvm_rmap_desc *prev_desc; | 613 | struct kvm_rmap_desc *prev_desc; |
614 | struct kvm_mmu_page *sp; | 614 | struct kvm_mmu_page *sp; |
615 | pfn_t pfn; | ||
616 | gfn_t gfn; | 615 | gfn_t gfn; |
617 | unsigned long *rmapp; | 616 | unsigned long *rmapp; |
618 | int i; | 617 | int i; |
619 | 618 | ||
620 | if (!is_rmap_spte(*spte)) | ||
621 | return; | ||
622 | sp = page_header(__pa(spte)); | 619 | sp = page_header(__pa(spte)); |
623 | pfn = spte_to_pfn(*spte); | ||
624 | if (*spte & shadow_accessed_mask) | ||
625 | kvm_set_pfn_accessed(pfn); | ||
626 | if (is_writable_pte(*spte)) | ||
627 | kvm_set_pfn_dirty(pfn); | ||
628 | gfn = kvm_mmu_page_get_gfn(sp, spte - sp->spt); | 620 | gfn = kvm_mmu_page_get_gfn(sp, spte - sp->spt); |
629 | rmapp = gfn_to_rmap(kvm, gfn, sp->role.level); | 621 | rmapp = gfn_to_rmap(kvm, gfn, sp->role.level); |
630 | if (!*rmapp) { | 622 | if (!*rmapp) { |
@@ -660,6 +652,17 @@ static void rmap_remove(struct kvm *kvm, u64 *spte) | |||
660 | 652 | ||
661 | static void drop_spte(struct kvm *kvm, u64 *sptep, u64 new_spte) | 653 | static void drop_spte(struct kvm *kvm, u64 *sptep, u64 new_spte) |
662 | { | 654 | { |
655 | pfn_t pfn; | ||
656 | |||
657 | if (!is_rmap_spte(*sptep)) { | ||
658 | __set_spte(sptep, new_spte); | ||
659 | return; | ||
660 | } | ||
661 | pfn = spte_to_pfn(*sptep); | ||
662 | if (*sptep & shadow_accessed_mask) | ||
663 | kvm_set_pfn_accessed(pfn); | ||
664 | if (is_writable_pte(*sptep)) | ||
665 | kvm_set_pfn_dirty(pfn); | ||
663 | rmap_remove(kvm, sptep); | 666 | rmap_remove(kvm, sptep); |
664 | __set_spte(sptep, new_spte); | 667 | __set_spte(sptep, new_spte); |
665 | } | 668 | } |