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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/i386
parent96f9e76f65652e1dc492de709034252f4c353dc9 (diff)
Add TSC_ADJUST CPUID flag.
ok deraadt@, mlarkin@
Diffstat (limited to 'sys/arch/i386')
-rw-r--r--sys/arch/i386/i386/machdep.c3
-rw-r--r--sys/arch/i386/include/specialreg.h3
2 files changed, 4 insertions, 2 deletions
diff --git a/sys/arch/i386/i386/machdep.c b/sys/arch/i386/i386/machdep.c
index 6519d8823e1..765d8dd57ab 100644
--- a/sys/arch/i386/i386/machdep.c
+++ b/sys/arch/i386/i386/machdep.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: machdep.c,v 1.630 2019/04/01 07:00:51 tedu Exp $ */
+/* $OpenBSD: machdep.c,v 1.631 2019/06/14 18:13:55 kettenis Exp $ */
/* $NetBSD: machdep.c,v 1.214 1996/11/10 03:16:17 thorpej Exp $ */
/*-
@@ -1059,6 +1059,7 @@ const struct cpu_cpuid_feature i386_ecpuid_ecxfeatures[] = {
const struct cpu_cpuid_feature 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/i386/include/specialreg.h b/sys/arch/i386/include/specialreg.h
index 094acfff322..8b1e398a93e 100644
--- a/sys/arch/i386/include/specialreg.h
+++ b/sys/arch/i386/include/specialreg.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: specialreg.h,v 1.73 2019/01/18 01:34:50 pd Exp $ */
+/* $OpenBSD: specialreg.h,v 1.74 2019/06/14 18:13:55 kettenis Exp $ */
/* $NetBSD: specialreg.h,v 1.7 1994/10/27 04:16:26 cgd Exp $ */
/*-
@@ -174,6 +174,7 @@
* 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 */