diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 3fde5b322534056f9f169159708639af9fe256a2..4915b7c8f2ec2468076ebcf662457abeeccd0a23 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -243,6 +243,7 @@ struct kvm_mmu { void (*free)(struct kvm_vcpu *vcpu); gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva, u32 access, u32 *error); + gpa_t (*translate_gpa)(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access); void (*prefetch_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *page); int (*sync_page)(struct kvm_vcpu *vcpu, diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 48b74d2fbfb741c29ec0ef4d8fb1296ec394af32..2364c2cad8917d04883b30530653f3e40805457c 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3448,6 +3448,11 @@ void kvm_get_segment(struct kvm_vcpu *vcpu, kvm_x86_ops->get_segment(vcpu, var, seg); } +static gpa_t translate_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access) +{ + return gpa; +} + gpa_t kvm_mmu_gva_to_gpa_read(struct kvm_vcpu *vcpu, gva_t gva, u32 *error) { u32 access = (kvm_x86_ops->get_cpl(vcpu) == 3) ? PFERR_USER_MASK : 0; @@ -5659,6 +5664,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) vcpu->arch.emulate_ctxt.ops = &emulate_ops; vcpu->arch.mmu.root_hpa = INVALID_PAGE; + vcpu->arch.mmu.translate_gpa = translate_gpa; if (!irqchip_in_kernel(kvm) || kvm_vcpu_is_bsp(vcpu)) vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE; else diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index f2ecdd52032b16334610706c91654f06d34c1575..917e68ff5ed210cc70f1b3032ab24d170a352ca7 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -534,6 +534,11 @@ static inline gpa_t gfn_to_gpa(gfn_t gfn) return (gpa_t)gfn << PAGE_SHIFT; } +static inline gfn_t gpa_to_gfn(gpa_t gpa) +{ + return (gfn_t)(gpa >> PAGE_SHIFT); +} + static inline hpa_t pfn_to_hpa(pfn_t pfn) { return (hpa_t)pfn << PAGE_SHIFT;