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authorJonathan Gray <jsg@cvs.openbsd.org>2020-09-13 05:57:29 +0000
committerJonathan Gray <jsg@cvs.openbsd.org>2020-09-13 05:57:29 +0000
commit416e42d56fd48dfd4ff048b7a75cda5fa59f48b5 (patch)
tree40a3ed758f7070b36e0719b3a29076ad360de22c /sys/arch/i386
parent8b9e77ff3022195be642f703dc747a407fce2b4d (diff)
add SRBDS cpuid bits
Diffstat (limited to 'sys/arch/i386')
-rw-r--r--sys/arch/i386/i386/machdep.c5
-rw-r--r--sys/arch/i386/include/specialreg.h7
2 files changed, 10 insertions, 2 deletions
diff --git a/sys/arch/i386/i386/machdep.c b/sys/arch/i386/i386/machdep.c
index 64e8db2ce12..a8b8529437e 100644
--- a/sys/arch/i386/i386/machdep.c
+++ b/sys/arch/i386/i386/machdep.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: machdep.c,v 1.638 2020/08/23 01:12:04 gnezdo Exp $ */
+/* $OpenBSD: machdep.c,v 1.639 2020/09/13 05:57:28 jsg Exp $ */
/* $NetBSD: machdep.c,v 1.214 1996/11/10 03:16:17 thorpej Exp $ */
/*-
@@ -1099,6 +1099,9 @@ const struct cpu_cpuid_feature cpu_seff0_ecxfeatures[] = {
const struct cpu_cpuid_feature cpu_seff0_edxfeatures[] = {
{ SEFF0EDX_AVX512_4FNNIW, "AVX512FNNIW" },
{ SEFF0EDX_AVX512_4FMAPS, "AVX512FMAPS" },
+ { SEFF0EDX_SRBDS_CTRL, "SRBDS_CTRL" },
+ { SEFF0EDX_MD_CLEAR, "MD_CLEAR" },
+ { SEFF0EDX_TSXFA, "TSXFA" },
{ SEFF0EDX_IBRS, "IBRS,IBPB" },
{ SEFF0EDX_STIBP, "STIBP" },
{ SEFF0EDX_L1DF, "L1DF" },
diff --git a/sys/arch/i386/include/specialreg.h b/sys/arch/i386/include/specialreg.h
index c100f75fe4b..06cdc2bf811 100644
--- a/sys/arch/i386/include/specialreg.h
+++ b/sys/arch/i386/include/specialreg.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: specialreg.h,v 1.75 2019/12/20 07:55:30 jsg Exp $ */
+/* $OpenBSD: specialreg.h,v 1.76 2020/09/13 05:57:28 jsg Exp $ */
/* $NetBSD: specialreg.h,v 1.7 1994/10/27 04:16:26 cgd Exp $ */
/*-
@@ -210,6 +210,9 @@
/* SEFF EDX bits */
#define SEFF0EDX_AVX512_4FNNIW 0x00000004 /* AVX-512 neural network insns */
#define SEFF0EDX_AVX512_4FMAPS 0x00000008 /* AVX-512 mult accum single prec */
+#define SEFF0EDX_SRBDS_CTRL 0x00000200 /* MCU_OPT_CTRL MSR */
+#define SEFF0EDX_MD_CLEAR 0x00000400 /* Microarch Data Clear */
+#define SEFF0EDX_TSXFA 0x00002000 /* TSX Forced Abort */
#define SEFF0EDX_IBRS 0x04000000 /* IBRS / IBPB Speculation Control */
#define SEFF0EDX_STIBP 0x08000000 /* STIBP Speculation Control */
#define SEFF0EDX_L1DF 0x10000000 /* L1D_FLUSH */
@@ -380,6 +383,8 @@
#define MSR_TSX_CTRL 0x122
#define TSX_CTRL_RTM_DISABLE (1ULL << 0)
#define TSX_CTRL_TSX_CPUID_CLEAR (1ULL << 1)
+#define MSR_MCU_OPT_CTRL 0x123
+#define RNGDS_MITG_DIS (1ULL << 0)
#define MSR_SYSENTER_CS 0x174
#define MSR_SYSENTER_ESP 0x175
#define MSR_SYSENTER_EIP 0x176