x86/bugs: Report Intel retbleed vulnerability

[platform/kernel/linux-starfive.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 d27e058..059c7e5 100644 (file)
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -93,6 +93,7 @@
 #define MSR_IA32_ARCH_CAPABILITIES     0x0000010a
 #define ARCH_CAP_RDCL_NO               BIT(0)  /* Not susceptible to Meltdown */
 #define ARCH_CAP_IBRS_ALL              BIT(1)  /* Enhanced IBRS support */
+#define ARCH_CAP_RSBA                  BIT(2)  /* RET may use alternative branch predictors */
 #define ARCH_CAP_SKIP_VMENTRY_L1DFLUSH BIT(3)  /* Skip L1D flush on vmentry */
 #define ARCH_CAP_SSB_NO                        BIT(4)  /*
                                                 * Not susceptible to Speculative Store Bypass