1 files changed, 10 insertions, 0 deletions

diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h
index 2c4390cae228..0c72adc0cb15 100644
--- a/arch/x86/include/asm/xsave.h
+++ b/arch/x86/include/asm/xsave.h
@@ -111,6 +111,16 @@ static inline void xrstor_state(struct xsave_struct *fx, u64 mask)
                      :   "memory");
 }
 
+static inline void xsave_state(struct xsave_struct *fx, u64 mask)
+{
+        u32 lmask = mask;
+        u32 hmask = mask >> 32;
+
+        asm volatile(".byte " REX_PREFIX "0x0f,0xae,0x27\n\t"
+                     : : "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
+                     :   "memory");
+}
+
 static inline void fpu_xsave(struct fpu *fpu)
 {
         /* This, however, we can work around by forcing the compiler to select