1 files changed, 3 insertions, 0 deletions

diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index b753ea59703a..597c041bd124 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -114,6 +114,8 @@ struct cpuinfo_x86 {
         u16                     cpu_index;
 #endif
         unsigned int            x86_hyper_vendor;
+        /* The layout of this field is hypervisor specific */
+        unsigned int            x86_hyper_features;
 } __attribute__((__aligned__(SMP_CACHE_BYTES)));
 
 #define X86_VENDOR_INTEL        0
@@ -129,6 +131,7 @@ struct cpuinfo_x86 {
 
 #define X86_HYPER_VENDOR_NONE  0
 #define X86_HYPER_VENDOR_VMWARE 1
+#define X86_HYPER_VENDOR_MSFT   2
 
 /*
  * capabilities of CPUs