[PATCH v2 2/6] KVM: VMX: Extend BUILD_CONTROLS_SHADOW macro to support 64-bit variation

[Zeng Guang]

From: Robert Hoo <robert.hu@xxxxxxxxxxxxxxx>

The Tertiary VM-Exec Control, different from previous control fields, is 64
bit. So extend BUILD_CONTROLS_SHADOW() by adding a 'bit' parameter, to
support both 32 bit and 64 bit fields' auxiliary functions building.
Also, define the auxiliary functions for Tertiary control field here, using
the new BUILD_CONTROLS_SHADOW().

Suggested-by: Sean Christopherson <seanjc@xxxxxxxxxx>
Signed-off-by: Robert Hoo <robert.hu@xxxxxxxxxxxxxxx>
---
 arch/x86/kvm/vmx/vmx.h | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h
index 3979a947933a..945c6639ce24 100644
--- a/arch/x86/kvm/vmx/vmx.h
+++ b/arch/x86/kvm/vmx/vmx.h
@@ -413,31 +413,32 @@ static inline u8 vmx_get_rvi(void)
 	return vmcs_read16(GUEST_INTR_STATUS) & 0xff;
 }
 
-#define BUILD_CONTROLS_SHADOW(lname, uname)				    \
-static inline void lname##_controls_set(struct vcpu_vmx *vmx, u32 val)	    \
+#define BUILD_CONTROLS_SHADOW(lname, uname, bits)			    \
+static inline void lname##_controls_set(struct vcpu_vmx *vmx, u##bits val) \
 {									    \
 	if (vmx->loaded_vmcs->controls_shadow.lname != val) {		    \
-		vmcs_write32(uname, val);				    \
+		vmcs_write##bits(uname, val);				    \
 		vmx->loaded_vmcs->controls_shadow.lname = val;		    \
 	}								    \
 }									    \
-static inline u32 lname##_controls_get(struct vcpu_vmx *vmx)		    \
+static inline u##bits lname##_controls_get(struct vcpu_vmx *vmx)	    \
 {									    \
 	return vmx->loaded_vmcs->controls_shadow.lname;			    \
 }									    \
-static inline void lname##_controls_setbit(struct vcpu_vmx *vmx, u32 val)   \
+static inline void lname##_controls_setbit(struct vcpu_vmx *vmx, u##bits val)   \
 {									    \
 	lname##_controls_set(vmx, lname##_controls_get(vmx) | val);	    \
 }									    \
-static inline void lname##_controls_clearbit(struct vcpu_vmx *vmx, u32 val) \
+static inline void lname##_controls_clearbit(struct vcpu_vmx *vmx, u##bits val) \
 {									    \
 	lname##_controls_set(vmx, lname##_controls_get(vmx) & ~val);	    \
 }
-BUILD_CONTROLS_SHADOW(vm_entry, VM_ENTRY_CONTROLS)
-BUILD_CONTROLS_SHADOW(vm_exit, VM_EXIT_CONTROLS)
-BUILD_CONTROLS_SHADOW(pin, PIN_BASED_VM_EXEC_CONTROL)
-BUILD_CONTROLS_SHADOW(exec, CPU_BASED_VM_EXEC_CONTROL)
-BUILD_CONTROLS_SHADOW(secondary_exec, SECONDARY_VM_EXEC_CONTROL)
+BUILD_CONTROLS_SHADOW(vm_entry, VM_ENTRY_CONTROLS, 32)
+BUILD_CONTROLS_SHADOW(vm_exit, VM_EXIT_CONTROLS, 32)
+BUILD_CONTROLS_SHADOW(pin, PIN_BASED_VM_EXEC_CONTROL, 32)
+BUILD_CONTROLS_SHADOW(exec, CPU_BASED_VM_EXEC_CONTROL, 32)
+BUILD_CONTROLS_SHADOW(secondary_exec, SECONDARY_VM_EXEC_CONTROL, 32)
+BUILD_CONTROLS_SHADOW(tertiary_exec, TERTIARY_VM_EXEC_CONTROL, 64)
 
 static inline void vmx_register_cache_reset(struct kvm_vcpu *vcpu)
 {
-- 
2.25.1