diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 1 | ||||
| -rw-r--r-- | arch/x86/kvm/mmu.c | 6 | ||||
| -rw-r--r-- | arch/x86/kvm/paging_tmpl.h | 2 |
3 files changed, 2 insertions, 7 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 37bd730ff85..f08314f303e 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -336,7 +336,6 @@ struct kvm_vcpu_arch { gfn_t last_pte_gfn; struct { - gfn_t gfn; /* presumed gfn during guest pte update */ pfn_t pfn; /* pfn corresponding to that gfn */ unsigned long mmu_seq; } update_pte; diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index d5455b1b725..91a19466743 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3228,7 +3228,6 @@ static void mmu_guess_page_from_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, kvm_release_pfn_clean(pfn); return; } - vcpu->arch.update_pte.gfn = gfn; vcpu->arch.update_pte.pfn = pfn; } @@ -3275,9 +3274,8 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, /* * Assume that the pte write on a page table of the same type - * as the current vcpu paging mode. This is nearly always true - * (might be false while changing modes). Note it is verified later - * by update_pte(). + * as the current vcpu paging mode since we update the sptes only + * when they have the same mode. */ if ((is_pae(vcpu) && bytes == 4) || !new) { /* Handle a 32-bit guest writing two halves of a 64-bit gpte */ diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index 6bccc24c418..b3862eeabb8 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -339,8 +339,6 @@ static void FNAME(update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp, pgprintk("%s: gpte %llx spte %p\n", __func__, (u64)gpte, spte); pte_access = sp->role.access & FNAME(gpte_access)(vcpu, gpte); - if (gpte_to_gfn(gpte) != vcpu->arch.update_pte.gfn) - return; pfn = vcpu->arch.update_pte.pfn; if (is_error_pfn(pfn)) return; |