x86/speculation: Disable RRSBA behavior

[mirror_ubuntu-jammy-kernel.git] / arch / x86 / include / asm / cpufeatures.h

diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 2fb676dc969ca9bc079e6f86c5411aefbb2bd8d4..b788356a6c7d620ce9f59a0aeaba233cb74b05d4 100644 (file)
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -203,8 +203,8 @@
 #define X86_FEATURE_PROC_FEEDBACK      ( 7*32+ 9) /* AMD ProcFeedbackInterface */
 /* FREE!                                ( 7*32+10) */
 #define X86_FEATURE_PTI                        ( 7*32+11) /* Kernel Page Table Isolation enabled */
-#define X86_FEATURE_RETPOLINE          ( 7*32+12) /* "" Generic Retpoline mitigation for Spectre variant 2 */
-#define X86_FEATURE_RETPOLINE_LFENCE   ( 7*32+13) /* "" Use LFENCE for Spectre variant 2 */
+#define X86_FEATURE_KERNEL_IBRS                ( 7*32+12) /* "" Set/clear IBRS on kernel entry/exit */
+#define X86_FEATURE_RSB_VMEXIT         ( 7*32+13) /* "" Fill RSB on VM-Exit */
 #define X86_FEATURE_INTEL_PPIN         ( 7*32+14) /* Intel Processor Inventory Number */
 #define X86_FEATURE_CDP_L2             ( 7*32+15) /* Code and Data Prioritization L2 */
 #define X86_FEATURE_MSR_SPEC_CTRL      ( 7*32+16) /* "" MSR SPEC_CTRL is implemented */
@@ -295,6 +295,12 @@
 #define X86_FEATURE_PER_THREAD_MBA     (11*32+ 7) /* "" Per-thread Memory Bandwidth Allocation */
 #define X86_FEATURE_SGX1               (11*32+ 8) /* "" Basic SGX */
 #define X86_FEATURE_SGX2               (11*32+ 9) /* "" SGX Enclave Dynamic Memory Management (EDMM) */
+#define X86_FEATURE_ENTRY_IBPB         (11*32+10) /* "" Issue an IBPB on kernel entry */
+#define X86_FEATURE_RRSBA_CTRL         (11*32+11) /* "" RET prediction control */
+#define X86_FEATURE_RETPOLINE          (11*32+12) /* "" Generic Retpoline mitigation for Spectre variant 2 */
+#define X86_FEATURE_RETPOLINE_LFENCE   (11*32+13) /* "" Use LFENCE for Spectre variant 2 */
+#define X86_FEATURE_RETHUNK            (11*32+14) /* "" Use REturn THUNK */
+#define X86_FEATURE_UNRET              (11*32+15) /* "" AMD BTB untrain return */
 
 /* Intel-defined CPU features, CPUID level 0x00000007:1 (EAX), word 12 */
 #define X86_FEATURE_AVX_VNNI           (12*32+ 4) /* AVX VNNI instructions */
@@ -314,6 +320,8 @@
 #define X86_FEATURE_AMD_SSBD           (13*32+24) /* "" Speculative Store Bypass Disable */
 #define X86_FEATURE_VIRT_SSBD          (13*32+25) /* Virtualized Speculative Store Bypass Disable */
 #define X86_FEATURE_AMD_SSB_NO         (13*32+26) /* "" Speculative Store Bypass is fixed in hardware. */
+#define X86_FEATURE_CPPC               (13*32+27) /* Collaborative Processor Performance Control */
+#define X86_FEATURE_BTC_NO             (13*32+29) /* "" Not vulnerable to Branch Type Confusion */
 
 /* Thermal and Power Management Leaf, CPUID level 0x00000006 (EAX), word 14 */
 #define X86_FEATURE_DTHERM             (14*32+ 0) /* Digital Thermal Sensor */
@@ -440,5 +448,7 @@
 #define X86_BUG_TAA                    X86_BUG(22) /* CPU is affected by TSX Async Abort(TAA) */
 #define X86_BUG_ITLB_MULTIHIT          X86_BUG(23) /* CPU may incur MCE during certain page attribute changes */
 #define X86_BUG_SRBDS                  X86_BUG(24) /* CPU may leak RNG bits if not mitigated */
+#define X86_BUG_MMIO_STALE_DATA                X86_BUG(25) /* CPU is affected by Processor MMIO Stale Data vulnerabilities */
+#define X86_BUG_RETBLEED               X86_BUG(26) /* CPU is affected by RETBleed */
 
 #endif /* _ASM_X86_CPUFEATURES_H */