summaryrefslogtreecommitdiffstats
path: root/arch/x86/kvm/mmu.h
diff options
context:
space:
mode:
authorSheng Yang <sheng.yang@intel.com>2008-04-25 10:17:08 +0800
committerAvi Kivity <avi@qumranet.com>2008-05-04 12:26:38 +0300
commit8c6d6adc6b87daa364ee9deb2e966021d37a7622 (patch)
tree125cac3e4fa7a3495880e7b1c942e85eb6ea6bc6 /arch/x86/kvm/mmu.h
parentd56f546db97795dca5aa575b00b0e9886895ac87 (diff)
downloadop-kernel-dev-8c6d6adc6b87daa364ee9deb2e966021d37a7622.zip
op-kernel-dev-8c6d6adc6b87daa364ee9deb2e966021d37a7622.tar.gz
KVM: MMU: Move some definitions to a header file
Move some definitions to mmu.h in order to allow building common table entries between EPT and non-EPT. Signed-off-by: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
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 e64e9f5..a4fcb78 100644
--- a/arch/x86/kvm/mmu.h
+++ b/arch/x86/kvm/mmu.h
@@ -9,6 +9,39 @@
#define TDP_ROOT_LEVEL PT32E_ROOT_LEVEL
#endif
+#define PT64_PT_BITS 9
+#define PT64_ENT_PER_PAGE (1 << PT64_PT_BITS)
+#define PT32_PT_BITS 10
+#define PT32_ENT_PER_PAGE (1 << PT32_PT_BITS)
+
+#define PT_WRITABLE_SHIFT 1
+
+#define PT_PRESENT_MASK (1ULL << 0)
+#define PT_WRITABLE_MASK (1ULL << PT_WRITABLE_SHIFT)
+#define PT_USER_MASK (1ULL << 2)
+#define PT_PWT_MASK (1ULL << 3)
+#define PT_PCD_MASK (1ULL << 4)
+#define PT_ACCESSED_MASK (1ULL << 5)
+#define PT_DIRTY_MASK (1ULL << 6)
+#define PT_PAGE_SIZE_MASK (1ULL << 7)
+#define PT_PAT_MASK (1ULL << 7)
+#define PT_GLOBAL_MASK (1ULL << 8)
+#define PT64_NX_SHIFT 63
+#define PT64_NX_MASK (1ULL << PT64_NX_SHIFT)
+
+#define PT_PAT_SHIFT 7
+#define PT_DIR_PAT_SHIFT 12
+#define PT_DIR_PAT_MASK (1ULL << PT_DIR_PAT_SHIFT)
+
+#define PT32_DIR_PSE36_SIZE 4
+#define PT32_DIR_PSE36_SHIFT 13
+#define PT32_DIR_PSE36_MASK \
+ (((1ULL << PT32_DIR_PSE36_SIZE) - 1) << PT32_DIR_PSE36_SHIFT)
+
+#define PT64_ROOT_LEVEL 4
+#define PT32_ROOT_LEVEL 2
+#define PT32E_ROOT_LEVEL 3
+
static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
{
if (unlikely(vcpu->kvm->arch.n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES))
OpenPOWER on IntegriCloud