x86/rfds: Mitigate Register File Data Sampling (RFDS)

[sfrench/cifs-2.6.git] / arch / x86 / include / asm / msr-index.h

diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index f1bd7b91b3c63735738825f15cd3c82fca7579ce..d1b5edaf6c34ba15faa46d6cb7f00736b463dffe 100644 (file)
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -165,6 +165,14 @@
                                                 * CPU is not vulnerable to Gather
                                                 * Data Sampling (GDS).
                                                 */
+#define ARCH_CAP_RFDS_NO               BIT(27) /*
+                                                * Not susceptible to Register
+                                                * File Data Sampling.
+                                                */
+#define ARCH_CAP_RFDS_CLEAR            BIT(28) /*
+                                                * VERW clears CPU Register
+                                                * File.
+                                                */
 
 #define ARCH_CAP_XAPIC_DISABLE         BIT(21) /*
                                                 * IA32_XAPIC_DISABLE_STATUS MSR