diff options
| -rw-r--r-- | sys/amd64/include/specialreg.h | 1 | ||||
| -rw-r--r-- | sys/i386/i386/initcpu.c | 2 | ||||
| -rw-r--r-- | sys/i386/include/specialreg.h | 3 |
3 files changed, 4 insertions, 2 deletions
diff --git a/sys/amd64/include/specialreg.h b/sys/amd64/include/specialreg.h index 286e10d..4571771 100644 --- a/sys/amd64/include/specialreg.h +++ b/sys/amd64/include/specialreg.h @@ -504,6 +504,7 @@ #define MSR_PERFCTR2 0xc0010006 #define MSR_PERFCTR3 0xc0010007 #define MSR_SYSCFG 0xc0010010 +#define MSR_HWCR 0xc0010015 #define MSR_IORRBASE0 0xc0010016 #define MSR_IORRMASK0 0xc0010017 #define MSR_IORRBASE1 0xc0010018 diff --git a/sys/i386/i386/initcpu.c b/sys/i386/i386/initcpu.c index 9020765..b7fa78c 100644 --- a/sys/i386/i386/initcpu.c +++ b/sys/i386/i386/initcpu.c @@ -672,7 +672,7 @@ initializecpu(void) (cpu_id & ~0xf) == 0x670 || (cpu_id & ~0xf) == 0x680)) { u_int regs[4]; - wrmsr(0xC0010015, rdmsr(0xC0010015) & ~0x08000); + wrmsr(MSR_HWCR, rdmsr(MSR_HWCR) & ~0x08000); do_cpuid(1, regs); cpu_feature = regs[3]; } diff --git a/sys/i386/include/specialreg.h b/sys/i386/include/specialreg.h index 4431eeb..d1cf4f0 100644 --- a/sys/i386/include/specialreg.h +++ b/sys/i386/include/specialreg.h @@ -554,7 +554,8 @@ #define AMD_WT_ALLOC_FRE 0x10000 /* fixed (A0000-FFFFF) range enable */ /* AMD64 MSR's */ -#define MSR_EFER 0xc0000080 /* extended features */ +#define MSR_EFER 0xc0000080 /* extended features */ +#define MSR_HWCR 0xc0010015 #define MSR_K8_UCODE_UPDATE 0xc0010020 /* update microcode */ #define MSR_MC0_CTL_MASK 0xc0010044 |
