x86/svm: add virtual VMLOAD/VMSAVE feature definition

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

Signed-off-by: Brian Woods <brian.woods@amd.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

diff --git a/xen/include/asm-x86/hvm/svm/svm.h b/xen/include/asm-x86/hvm/svm/svm.h
index 0956f860efb8a620047486079f7db9053967debf..4edf7b002d59e462dafd55970d35aeb159b61193 100644 (file)
--- 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 beec1f6c0e63fa3d38baa2a1c18fd3c80a631606..1d3d45f6d781a6c6dc1e05d72aba79e1b94ef708 100644 (file)
--- 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;