diff mbox series

[v6,01/12] KVM: SVM: Introduce vmcb_(set_intercept/clr_intercept/_is_intercept)

Message ID 159985247876.11252.16039238014239824460.stgit@bmoger-ubuntu (mailing list archive)
State New, archived
Headers show
Series SVM cleanup and INVPCID feature support | expand

Commit Message

Babu Moger Sept. 11, 2020, 7:27 p.m. UTC 
This is in preparation for the future intercept vector additions.

Add new functions vmcb_set_intercept, vmcb_clr_intercept and vmcb_is_intercept
using kernel APIs __set_bit, __clear_bit and test_bit espectively.

Signed-off-by: Babu Moger <babu.moger@amd.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
---
 arch/x86/kvm/svm/svm.h |   15 +++++++++++++++
 1 file changed, 15 insertions(+)
diff mbox series

Patch

diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h
index a798e1731709..1cff7644e70b 100644
--- a/arch/x86/kvm/svm/svm.h
+++ b/arch/x86/kvm/svm/svm.h
@@ -214,6 +214,21 @@  static inline struct vmcb *get_host_vmcb(struct vcpu_svm *svm)
 		return svm->vmcb;
 }
 
+static inline void vmcb_set_intercept(struct vmcb_control_area *control, int bit)
+{
+	__set_bit(bit, (unsigned long *)&control->intercept_cr);
+}
+
+static inline void vmcb_clr_intercept(struct vmcb_control_area *control, int bit)
+{
+	__clear_bit(bit, (unsigned long *)&control->intercept_cr);
+}
+
+static inline bool vmcb_is_intercept(struct vmcb_control_area *control, int bit)
+{
+	return test_bit(bit, (unsigned long *)&control->intercept_cr);
+}
+
 static inline void set_cr_intercept(struct vcpu_svm *svm, int bit)
 {
 	struct vmcb *vmcb = get_host_vmcb(svm);