KVM: VMX: Prepare an identity page table for EPT in real mode

[aliguory: plug leak]

Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/x86/kvm/vmx.h b/arch/x86/kvm/vmx.h
index 093b085daf6a..f97eccc754e8 100644
--- a/arch/x86/kvm/vmx.h
+++ b/arch/x86/kvm/vmx.h
@@ -340,6 +340,7 @@ enum vmcs_field {
 #define MSR_IA32_FEATURE_CONTROL_VMXON_ENABLED  0x4
 
 #define APIC_ACCESS_PAGE_PRIVATE_MEMSLOT        9
+#define IDENTITY_PAGETABLE_PRIVATE_MEMSLOT      10
 
 #define VMX_NR_VPIDS                            (1 << 16)
 #define VMX_VPID_EXTENT_SINGLE_CONTEXT          1
@@ -353,4 +354,6 @@ enum vmcs_field {
 #define VMX_EPT_EXTENT_GLOBAL_BIT               (1ull << 26)
 #define VMX_EPT_DEFAULT_GAW                     3
 
+#define VMX_EPT_IDENTITY_PAGETABLE_ADDR         0xfffbc000ul
+
 #endif