KVM: VMX: Extend BUILD_CONTROLS_SHADOW macro to support 64-bit variation

mainline inclusion
from mainline-v6.0-rc1
commit ed3905ba
category: feature
feature: IPI Virtualization
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I5ODSC
CVE: N/A
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ed3905ba60384ab8c73b421c3618375e58080a9a

Intel-SIG: commit ed3905ba ("KVM: VMX: Extend BUILD_CONTROLS_SHADOW macro to support 64-bit variation")

-------------------------------------

KVM: VMX: Extend BUILD_CONTROLS_SHADOW macro to support 64-bit variation

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.
Suggested-by: NSean Christopherson <seanjc@google.com>
Reviewed-by: NMaxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: NSean Christopherson <seanjc@google.com>
Signed-off-by: NRobert Hoo <robert.hu@linux.intel.com>
Signed-off-by: NZeng Guang <guang.zeng@intel.com>
Message-Id: <20220419153318.11595-1-guang.zeng@intel.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NJason Zeng <jason.zeng@intel.com>

arch/x86/kvm/vmx/vmx.h

@@ -409,31 +409,35 @@ 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)	    \
-{									    \
-	if (vmx->loaded_vmcs->controls_shadow.lname != val) {		    \
-		vmcs_write32(uname, val);				    \
-		vmx->loaded_vmcs->controls_shadow.lname = val;		    \
-	}								    \
-}									    \
-static inline u32 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)   \
-{									    \
-	lname##_controls_set(vmx, lname##_controls_get(vmx) | val);	    \
-}									    \
-static inline void lname##_controls_clearbit(struct vcpu_vmx *vmx, u32 val) \
-{									    \
-	lname##_controls_set(vmx, lname##_controls_get(vmx) & ~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_write##bits(uname, val);					\
+		vmx->loaded_vmcs->controls_shadow.lname = val;			\
+	}									\
+}										\
+static inline u##bits __##lname##_controls_get(struct loaded_vmcs *vmcs)	\
+{										\
+	return vmcs->controls_shadow.lname;					\
+}										\
+static inline u##bits lname##_controls_get(struct vcpu_vmx *vmx)		\
+{										\
+	return __##lname##_controls_get(vmx->loaded_vmcs);			\
+}										\
+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, 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)
 
 static inline void vmx_register_cache_reset(struct kvm_vcpu *vcpu)
 {