KVM: x86: stubs for SMM support
This patch adds the interface between x86.c and the emulator: the
SMBASE register, a new emulator flag, the RSM instruction. It also
adds a new request bit that will be used by the KVM_SMI ioctl.
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index 7410879..e16466e 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -193,6 +193,8 @@
int (*cpl)(struct x86_emulate_ctxt *ctxt);
int (*get_dr)(struct x86_emulate_ctxt *ctxt, int dr, ulong *dest);
int (*set_dr)(struct x86_emulate_ctxt *ctxt, int dr, ulong value);
+ u64 (*get_smbase)(struct x86_emulate_ctxt *ctxt);
+ void (*set_smbase)(struct x86_emulate_ctxt *ctxt, u64 smbase);
int (*set_msr)(struct x86_emulate_ctxt *ctxt, u32 msr_index, u64 data);
int (*get_msr)(struct x86_emulate_ctxt *ctxt, u32 msr_index, u64 *pdata);
int (*check_pmc)(struct x86_emulate_ctxt *ctxt, u32 pmc);
@@ -264,6 +266,8 @@
/* These match some of the HF_* flags defined in kvm_host.h */
#define X86EMUL_GUEST_MASK (1 << 5) /* VCPU is in guest-mode */
+#define X86EMUL_SMM_MASK (1 << 6)
+#define X86EMUL_SMM_INSIDE_NMI_MASK (1 << 7)
struct x86_emulate_ctxt {
const struct x86_emulate_ops *ops;