[Xen-devel] [PATCH 2/3] x86/svm: add virtual VMLOAD/VMSAVE feature definition

[brian.woods@xxxxxxx]

From: Brian Woods <brian.woods@xxxxxxx>

Adding support for enabling the virtual VMLOAD/VMSAVE feature..

Signed-off-by: Brian Woods <brian.woods@xxxxxxx>
---
 xen/include/asm-x86/hvm/svm/svm.h  | 2 ++
 xen/include/asm-x86/hvm/svm/vmcb.h | 1 +
 2 files changed, 3 insertions(+)

diff --git a/xen/include/asm-x86/hvm/svm/svm.h 
b/xen/include/asm-x86/hvm/svm/svm.h
index 0956f860ef..4edf7b002d 100644
--- a/xen/include/asm-x86/hvm/svm/svm.h
+++ b/xen/include/asm-x86/hvm/svm/svm.h
@@ -64,6 +64,7 @@ extern u32 svm_feature_flags;
 #define SVM_FEATURE_FLUSHBYASID    6 /* TLB flush by ASID support */
 #define SVM_FEATURE_DECODEASSISTS  7 /* Decode assists support */
 #define SVM_FEATURE_PAUSEFILTER   10 /* Pause intercept filter support */
+#define SVM_FEATURE_VLOADSAVE     15 /* virtual vmload/vmsave */
 
 #define cpu_has_svm_feature(f) test_bit(f, &svm_feature_flags)
 #define cpu_has_svm_npt       cpu_has_svm_feature(SVM_FEATURE_NPT)
@@ -74,6 +75,7 @@ extern u32 svm_feature_flags;
 #define cpu_has_svm_decode    cpu_has_svm_feature(SVM_FEATURE_DECODEASSISTS)
 #define cpu_has_pause_filter  cpu_has_svm_feature(SVM_FEATURE_PAUSEFILTER)
 #define cpu_has_tsc_ratio     cpu_has_svm_feature(SVM_FEATURE_TSCRATEMSR)
+#define cpu_has_svm_vloadsave cpu_has_svm_feature(SVM_FEATURE_VLOADSAVE)
 
 #define SVM_PAUSEFILTER_INIT    3000
 
diff --git a/xen/include/asm-x86/hvm/svm/vmcb.h 
b/xen/include/asm-x86/hvm/svm/vmcb.h
index beec1f6c0e..1d3d45f6d7 100644
--- a/xen/include/asm-x86/hvm/svm/vmcb.h
+++ b/xen/include/asm-x86/hvm/svm/vmcb.h
@@ -359,6 +359,7 @@ typedef union
     struct
     {
         u64 lbr_enable:1;
+        u64 vloadsave_enable:1;
     } fields;
 } virt_ext_t;
 
-- 
2.11.0


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