diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/paging_tmpl.h | 40 |
1 files changed, 16 insertions, 24 deletions
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index a83ff379405..9a5f7bb5f84 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -116,16 +116,18 @@ static unsigned FNAME(gpte_access)(struct kvm_vcpu *vcpu, pt_element_t gpte) */ static int FNAME(walk_addr_generic)(struct guest_walker *walker, struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, - gva_t addr, int write_fault, - int user_fault, int fetch_fault) + gva_t addr, u32 access) { pt_element_t pte; gfn_t table_gfn; unsigned index, pt_access, uninitialized_var(pte_access); gpa_t pte_gpa; bool eperm, present, rsvd_fault; - int offset; - u32 access = 0; + int offset, write_fault, user_fault, fetch_fault; + + write_fault = access & PFERR_WRITE_MASK; + user_fault = access & PFERR_USER_MASK; + fetch_fault = access & PFERR_FETCH_MASK; trace_kvm_mmu_pagetable_walk(addr, write_fault, user_fault, fetch_fault); @@ -215,6 +217,7 @@ walk: int lvl = walker->level; gpa_t real_gpa; gfn_t gfn; + u32 ac; gfn = gpte_to_gfn_lvl(pte, lvl); gfn += (addr & PT_LVL_OFFSET_MASK(lvl)) >> PAGE_SHIFT; @@ -224,10 +227,10 @@ walk: is_cpuid_PSE36()) gfn += pse36_gfn_delta(pte); - access |= write_fault | fetch_fault | user_fault; + ac = write_fault | fetch_fault | user_fault; real_gpa = mmu->translate_gpa(vcpu, gfn_to_gpa(gfn), - access); + ac); if (real_gpa == UNMAPPED_GVA) return 0; @@ -282,21 +285,18 @@ error: } static int FNAME(walk_addr)(struct guest_walker *walker, - struct kvm_vcpu *vcpu, gva_t addr, - int write_fault, int user_fault, int fetch_fault) + struct kvm_vcpu *vcpu, gva_t addr, u32 access) { return FNAME(walk_addr_generic)(walker, vcpu, &vcpu->arch.mmu, addr, - write_fault, user_fault, fetch_fault); + access); } static int FNAME(walk_addr_nested)(struct guest_walker *walker, struct kvm_vcpu *vcpu, gva_t addr, - int write_fault, int user_fault, - int fetch_fault) + u32 access) { return FNAME(walk_addr_generic)(walker, vcpu, &vcpu->arch.nested_mmu, - addr, write_fault, user_fault, - fetch_fault); + addr, access); } static void FNAME(update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp, @@ -532,7 +532,6 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, { int write_fault = error_code & PFERR_WRITE_MASK; int user_fault = error_code & PFERR_USER_MASK; - int fetch_fault = error_code & PFERR_FETCH_MASK; struct guest_walker walker; u64 *sptep; int write_pt = 0; @@ -550,8 +549,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, /* * Look up the guest pte for the faulting address. */ - r = FNAME(walk_addr)(&walker, vcpu, addr, write_fault, user_fault, - fetch_fault); + r = FNAME(walk_addr)(&walker, vcpu, addr, error_code); /* * The page is not mapped by the guest. Let the guest handle it. @@ -669,10 +667,7 @@ static gpa_t FNAME(gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t vaddr, u32 access, gpa_t gpa = UNMAPPED_GVA; int r; - r = FNAME(walk_addr)(&walker, vcpu, vaddr, - access & PFERR_WRITE_MASK, - access & PFERR_USER_MASK, - access & PFERR_FETCH_MASK); + r = FNAME(walk_addr)(&walker, vcpu, vaddr, access); if (r) { gpa = gfn_to_gpa(walker.gfn); @@ -690,10 +685,7 @@ static gpa_t FNAME(gva_to_gpa_nested)(struct kvm_vcpu *vcpu, gva_t vaddr, gpa_t gpa = UNMAPPED_GVA; int r; - r = FNAME(walk_addr_nested)(&walker, vcpu, vaddr, - access & PFERR_WRITE_MASK, - access & PFERR_USER_MASK, - access & PFERR_FETCH_MASK); + r = FNAME(walk_addr_nested)(&walker, vcpu, vaddr, access); if (r) { gpa = gfn_to_gpa(walker.gfn); |