aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86/kvm/mmu.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/kvm/mmu.h')
-rw-r--r--arch/x86/kvm/mmu.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h
index e64e9f56a65e..a4fcb78ebf42 100644
--- a/arch/x86/kvm/mmu.h
+++ b/arch/x86/kvm/mmu.h
@@ -9,6 +9,39 @@
9#define TDP_ROOT_LEVEL PT32E_ROOT_LEVEL 9#define TDP_ROOT_LEVEL PT32E_ROOT_LEVEL
10#endif 10#endif
11 11
12#define PT64_PT_BITS 9
13#define PT64_ENT_PER_PAGE (1 << PT64_PT_BITS)
14#define PT32_PT_BITS 10
15#define PT32_ENT_PER_PAGE (1 << PT32_PT_BITS)
16
17#define PT_WRITABLE_SHIFT 1
18
19#define PT_PRESENT_MASK (1ULL << 0)
20#define PT_WRITABLE_MASK (1ULL << PT_WRITABLE_SHIFT)
21#define PT_USER_MASK (1ULL << 2)
22#define PT_PWT_MASK (1ULL << 3)
23#define PT_PCD_MASK (1ULL << 4)
24#define PT_ACCESSED_MASK (1ULL << 5)
25#define PT_DIRTY_MASK (1ULL << 6)
26#define PT_PAGE_SIZE_MASK (1ULL << 7)
27#define PT_PAT_MASK (1ULL << 7)
28#define PT_GLOBAL_MASK (1ULL << 8)
29#define PT64_NX_SHIFT 63
30#define PT64_NX_MASK (1ULL << PT64_NX_SHIFT)
31
32#define PT_PAT_SHIFT 7
33#define PT_DIR_PAT_SHIFT 12
34#define PT_DIR_PAT_MASK (1ULL << PT_DIR_PAT_SHIFT)
35
36#define PT32_DIR_PSE36_SIZE 4
37#define PT32_DIR_PSE36_SHIFT 13
38#define PT32_DIR_PSE36_MASK \
39 (((1ULL << PT32_DIR_PSE36_SIZE) - 1) << PT32_DIR_PSE36_SHIFT)
40
41#define PT64_ROOT_LEVEL 4
42#define PT32_ROOT_LEVEL 2
43#define PT32E_ROOT_LEVEL 3
44
12static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu) 45static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
13{ 46{
14 if (unlikely(vcpu->kvm->arch.n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES)) 47 if (unlikely(vcpu->kvm->arch.n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES))