diff options
Diffstat (limited to 'arch/x86/kernel/cpu/mcheck/p5.c')
| -rw-r--r-- | arch/x86/kernel/cpu/mcheck/p5.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/p5.c b/arch/x86/kernel/cpu/mcheck/p5.c index a3042989398..ec2663a708e 100644 --- a/arch/x86/kernel/cpu/mcheck/p5.c +++ b/arch/x86/kernel/cpu/mcheck/p5.c @@ -8,6 +8,7 @@ #include <linux/smp.h> #include <asm/processor.h> +#include <asm/traps.h> #include <asm/mce.h> #include <asm/msr.h> @@ -17,8 +18,11 @@ int mce_p5_enabled __read_mostly; /* Machine check handler for Pentium class Intel CPUs: */ static void pentium_machine_check(struct pt_regs *regs, long error_code) { + enum ctx_state prev_state; u32 loaddr, hi, lotype; + prev_state = ist_enter(regs); + rdmsr(MSR_IA32_P5_MC_ADDR, loaddr, hi); rdmsr(MSR_IA32_P5_MC_TYPE, lotype, hi); @@ -33,6 +37,8 @@ static void pentium_machine_check(struct pt_regs *regs, long error_code) } add_taint(TAINT_MACHINE_CHECK, LOCKDEP_NOW_UNRELIABLE); + + ist_exit(regs, prev_state); } /* Set up machine check reporting for processors with Intel style MCE: */ |