x86: Detect running on a Microsoft HyperV system

[firefly-linux-kernel-4.4.55.git] / arch / x86 / include / asm / processor.h

diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index b753ea59703a114f056b32d9b1455622d7b131a9..597c041bd124463e23f1d5de520aa76772b093ff 100644 (file)
--- 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