kvm: nVMX: Introduce KVM_CAP_NESTED_STATE

[linux.git] / arch / x86 / include / uapi / asm / kvm.h

diff --git a/arch/x86/include/uapi/asm/kvm.h b/arch/x86/include/uapi/asm/kvm.h
index c535c2fdea136a5e58725e72a2d867f545d393eb..86299efa804adbfc35d3338f9fe75083e6cdf5af 100644 (file)
--- a/arch/x86/include/uapi/asm/kvm.h
+++ b/arch/x86/include/uapi/asm/kvm.h
@@ -378,4 +378,41 @@ struct kvm_sync_regs {
 #define KVM_X86_QUIRK_LINT0_REENABLED  (1 << 0)
 #define KVM_X86_QUIRK_CD_NW_CLEARED    (1 << 1)
 
+#define KVM_STATE_NESTED_GUEST_MODE    0x00000001
+#define KVM_STATE_NESTED_RUN_PENDING   0x00000002
+
+#define KVM_STATE_NESTED_SMM_GUEST_MODE        0x00000001
+#define KVM_STATE_NESTED_SMM_VMXON     0x00000002
+
+struct kvm_vmx_nested_state {
+       __u64 vmxon_pa;
+       __u64 vmcs_pa;
+
+       struct {
+               __u16 flags;
+       } smm;
+};
+
+/* for KVM_CAP_NESTED_STATE */
+struct kvm_nested_state {
+       /* KVM_STATE_* flags */
+       __u16 flags;
+
+       /* 0 for VMX, 1 for SVM.  */
+       __u16 format;
+
+       /* 128 for SVM, 128 + VMCS size for VMX.  */
+       __u32 size;
+
+       union {
+               /* VMXON, VMCS */
+               struct kvm_vmx_nested_state vmx;
+
+               /* Pad the header to 128 bytes.  */
+               __u8 pad[120];
+       };
+
+       __u8 data[0];
+};
+
 #endif /* _ASM_X86_KVM_H */