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authorMark Kettenis <kettenis@cvs.openbsd.org>2019-06-14 18:13:56 +0000
committerMark Kettenis <kettenis@cvs.openbsd.org>2019-06-14 18:13:56 +0000
commit72b2c8b063c321d18386d850154734ceb3128af8 (patch)
tree57acf66dd8b35558972ec2df3f1c229d3c07f68d /sys/arch/amd64
parent96f9e76f65652e1dc492de709034252f4c353dc9 (diff)
Add TSC_ADJUST CPUID flag.
ok deraadt@, mlarkin@
Diffstat (limited to 'sys/arch/amd64')
-rw-r--r--sys/arch/amd64/amd64/identcpu.c3
-rw-r--r--sys/arch/amd64/include/specialreg.h3
2 files changed, 4 insertions, 2 deletions
diff --git a/sys/arch/amd64/amd64/identcpu.c b/sys/arch/amd64/amd64/identcpu.c
index 11fa3323d5e..459fd0a6ac4 100644
--- a/sys/arch/amd64/amd64/identcpu.c
+++ b/sys/arch/amd64/amd64/identcpu.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: identcpu.c,v 1.112 2019/05/28 18:20:01 guenther Exp $ */
+/* $OpenBSD: identcpu.c,v 1.113 2019/06/14 18:13:55 kettenis Exp $ */
/* $NetBSD: identcpu.c,v 1.1 2003/04/26 18:39:28 fvdl Exp $ */
/*
@@ -172,6 +172,7 @@ const struct {
{ CPUIDECX_MWAITX, "MWAITX" },
}, cpu_seff0_ebxfeatures[] = {
{ SEFF0EBX_FSGSBASE, "FSGSBASE" },
+ { SEFF0EBX_TSC_ADJUST, "TSC_ADJUST" },
{ SEFF0EBX_SGX, "SGX" },
{ SEFF0EBX_BMI1, "BMI1" },
{ SEFF0EBX_HLE, "HLE" },
diff --git a/sys/arch/amd64/include/specialreg.h b/sys/arch/amd64/include/specialreg.h
index a34d39e14d5..bb8c1539bde 100644
--- a/sys/arch/amd64/include/specialreg.h
+++ b/sys/arch/amd64/include/specialreg.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: specialreg.h,v 1.84 2019/05/17 19:07:16 guenther Exp $ */
+/* $OpenBSD: specialreg.h,v 1.85 2019/06/14 18:13:55 kettenis Exp $ */
/* $NetBSD: specialreg.h,v 1.1 2003/04/26 18:39:48 fvdl Exp $ */
/* $NetBSD: x86/specialreg.h,v 1.2 2003/04/25 21:54:30 fvdl Exp $ */
@@ -185,6 +185,7 @@
* EBX bits
*/
#define SEFF0EBX_FSGSBASE 0x00000001 /* {RD,WR}[FG]SBASE instructions */
+#define SEFF0EBX_TSC_ADJUST 0x00000002 /* Has IA32_TSC_ADJUST MSR */
#define SEFF0EBX_SGX 0x00000004 /* Software Guard Extensions */
#define SEFF0EBX_BMI1 0x00000008 /* advanced bit manipulation */
#define SEFF0EBX_HLE 0x00000010 /* Hardware Lock Elision */