diff options
Diffstat (limited to 'drivers/kvm/mmu.c')
| -rw-r--r-- | drivers/kvm/mmu.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c index 23dc4612026b..9ec3df90dbb8 100644 --- a/drivers/kvm/mmu.c +++ b/drivers/kvm/mmu.c @@ -1137,6 +1137,20 @@ static void mmu_pte_write_zap_pte(struct kvm_vcpu *vcpu, *spte = 0; } +static void mmu_pte_write_new_pte(struct kvm_vcpu *vcpu, + struct kvm_mmu_page *page, + u64 *spte, + const void *new, int bytes) +{ + if (page->role.level != PT_PAGE_TABLE_LEVEL) + return; + + if (page->role.glevels == PT32_ROOT_LEVEL) + paging32_update_pte(vcpu, page, spte, new, bytes); + else + paging64_update_pte(vcpu, page, spte, new, bytes); +} + void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, const u8 *old, const u8 *new, int bytes) { @@ -1212,6 +1226,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, spte += page_offset / sizeof(*spte); while (npte--) { mmu_pte_write_zap_pte(vcpu, page, spte); + mmu_pte_write_new_pte(vcpu, page, spte, new, bytes); ++spte; } } |