Add an emulation flag X86EMUL_F_IMPLICIT to identify implicit system access
in instruction emulation.
Linear Address Space Separation (LASS) treats data access a supervisor-mode
access if it implicitly accessed a system data structure. The flag will be
consumed to support LASS virtualization.
Signed-off-by: Binbin Wu <binbin.wu@xxxxxxxxxxxxxxx>
Tested-by: Xuelian Guo <xuelian.guo@xxxxxxxxx>
---
arch/x86/kvm/kvm_emulate.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/kvm/kvm_emulate.h b/arch/x86/kvm/kvm_emulate.h
index e1fd83908334..5f9869018332 100644
--- a/arch/x86/kvm/kvm_emulate.h
+++ b/arch/x86/kvm/kvm_emulate.h
@@ -92,6 +92,7 @@ struct x86_instruction_info {
#define X86EMUL_F_WRITE BIT(0)
#define X86EMUL_F_FETCH BIT(1)
#define X86EMUL_F_BRANCH BIT(2)
+#define X86EMUL_F_IMPLICIT BIT(3)
struct x86_emulate_ops {
void (*vm_bugged)(struct x86_emulate_ctxt *ctxt);
--
2.25.1
