diff options
Diffstat (limited to 'drivers/kvm')
| -rw-r--r-- | drivers/kvm/mmu.c | 17 | ||||
| -rw-r--r-- | drivers/kvm/paging_tmpl.h | 20 |
2 files changed, 9 insertions, 28 deletions
diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c index 4e29d9b7211..3d367cbfe1f 100644 --- a/drivers/kvm/mmu.c +++ b/drivers/kvm/mmu.c @@ -61,22 +61,9 @@ #define PT32_PTE_COPY_MASK \ - (PT_PRESENT_MASK | PT_PWT_MASK | PT_PCD_MASK | \ - PT_ACCESSED_MASK | PT_DIRTY_MASK | PT_PAT_MASK | \ - PT_GLOBAL_MASK ) - -#define PT32_NON_PTE_COPY_MASK \ - (PT_PRESENT_MASK | PT_PWT_MASK | PT_PCD_MASK | \ - PT_ACCESSED_MASK | PT_DIRTY_MASK) - - -#define PT64_PTE_COPY_MASK \ - (PT64_NX_MASK | PT32_PTE_COPY_MASK) - -#define PT64_NON_PTE_COPY_MASK \ - (PT64_NX_MASK | PT32_NON_PTE_COPY_MASK) - + (PT_PRESENT_MASK | PT_ACCESSED_MASK | PT_DIRTY_MASK | PT_GLOBAL_MASK) +#define PT64_PTE_COPY_MASK (PT64_NX_MASK | PT32_PTE_COPY_MASK) #define PT_FIRST_AVAIL_BITS_SHIFT 9 #define PT64_SECOND_AVAIL_BITS_SHIFT 52 diff --git a/drivers/kvm/paging_tmpl.h b/drivers/kvm/paging_tmpl.h index 765c2e1a048..a9771b4c5bb 100644 --- a/drivers/kvm/paging_tmpl.h +++ b/drivers/kvm/paging_tmpl.h @@ -32,7 +32,6 @@ #define SHADOW_PT_INDEX(addr, level) PT64_INDEX(addr, level) #define PT_LEVEL_MASK(level) PT64_LEVEL_MASK(level) #define PT_PTE_COPY_MASK PT64_PTE_COPY_MASK - #define PT_NON_PTE_COPY_MASK PT64_NON_PTE_COPY_MASK #elif PTTYPE == 32 #define pt_element_t u32 #define guest_walker guest_walker32 @@ -43,7 +42,6 @@ #define SHADOW_PT_INDEX(addr, level) PT64_INDEX(addr, level) #define PT_LEVEL_MASK(level) PT32_LEVEL_MASK(level) #define PT_PTE_COPY_MASK PT32_PTE_COPY_MASK - #define PT_NON_PTE_COPY_MASK PT32_NON_PTE_COPY_MASK #else #error Invalid PTTYPE value #endif @@ -105,9 +103,7 @@ static void FNAME(set_pde)(struct kvm_vcpu *vcpu, u64 guest_pde, if (PTTYPE == 32 && is_cpuid_PSE36()) gaddr |= (guest_pde & PT32_DIR_PSE36_MASK) << (32 - PT32_DIR_PSE36_SHIFT); - *shadow_pte = (guest_pde & (PT_NON_PTE_COPY_MASK | PT_GLOBAL_MASK)) | - ((guest_pde & PT_DIR_PAT_MASK) >> - (PT_DIR_PAT_SHIFT - PT_PAT_SHIFT)); + *shadow_pte = guest_pde & PT_PTE_COPY_MASK; set_pte_common(vcpu, shadow_pte, gaddr, guest_pde & PT_DIRTY_MASK, access_bits); } @@ -162,6 +158,7 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr, u32 index = SHADOW_PT_INDEX(addr, level); u64 *shadow_ent = ((u64 *)__va(shadow_addr)) + index; pt_element_t *guest_ent; + u64 shadow_pte; if (is_present_pte(*shadow_ent) || is_io_pte(*shadow_ent)) { if (level == PT_PAGE_TABLE_LEVEL) @@ -204,14 +201,11 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr, shadow_addr = kvm_mmu_alloc_page(vcpu, shadow_ent); if (!VALID_PAGE(shadow_addr)) return ERR_PTR(-ENOMEM); - if (!kvm_arch_ops->is_long_mode(vcpu) && level == 3) - *shadow_ent = shadow_addr | - (*guest_ent & (PT_PRESENT_MASK | PT_PWT_MASK | PT_PCD_MASK)); - else { - *shadow_ent = shadow_addr | - (*guest_ent & PT_NON_PTE_COPY_MASK); - *shadow_ent |= (PT_WRITABLE_MASK | PT_USER_MASK); - } + shadow_pte = shadow_addr | PT_PRESENT_MASK; + if (vcpu->mmu.root_level > 3 || level != 3) + shadow_pte |= PT_ACCESSED_MASK + | PT_WRITABLE_MASK | PT_USER_MASK; + *shadow_ent = shadow_pte; prev_shadow_ent = shadow_ent; } } |