diff options
| author | Jonathan Gray <jsg@cvs.openbsd.org> | 2023-08-16 09:51:40 +0000 |
|---|---|---|
| committer | Jonathan Gray <jsg@cvs.openbsd.org> | 2023-08-16 09:51:40 +0000 |
| commit | 249092c9f640ccd7b6a28ed40135471f8fcc19c8 (patch) | |
| tree | 3838fc1b4fde25b3ef17eae1ac193311b22b3897 /sys/arch/i386 | |
| parent | 1bb3db5c2039da1aa32059becfca462ef863307e (diff) | |
avoid bios sign msr on intel family < 6
the pentium msr list in the sdm does not include it
Diffstat (limited to 'sys/arch/i386')
| -rw-r--r-- | sys/arch/i386/i386/machdep.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/arch/i386/i386/machdep.c b/sys/arch/i386/i386/machdep.c index 7bbefdfcd6c..9ce08823da5 100644 --- a/sys/arch/i386/i386/machdep.c +++ b/sys/arch/i386/i386/machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: machdep.c,v 1.667 2023/08/16 07:26:05 jsg Exp $ */ +/* $OpenBSD: machdep.c,v 1.668 2023/08/16 09:51:39 jsg Exp $ */ /* $NetBSD: machdep.c,v 1.214 1996/11/10 03:16:17 thorpej Exp $ */ /*- @@ -1866,7 +1866,8 @@ identifycpu(struct cpu_info *ci) if (strcmp(cpu_vendor, "AuthenticAMD") == 0 && ci->ci_family >= 0x0f) { level = rdmsr(MSR_PATCH_LEVEL); - } else if (strcmp(cpu_vendor, "GenuineIntel") == 0) { + } else if (strcmp(cpu_vendor, "GenuineIntel") == 0 && + ci->ci_family >= 6) { wrmsr(MSR_BIOS_SIGN, 0); CPUID(1, dummy, dummy, dummy, dummy); level = rdmsr(MSR_BIOS_SIGN) >> 32; |