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MCE: Fix bug of IA32_MCG_STATUS after system reset 

Now, if we inject a fatal MCE into guest OS, for example Linux, Linux
will go panic and then reboot. But if we inject another MCE now,
system will reset directly instead of go panic firstly, because
MCG_STATUS.MCIP is set to 1 and not cleared after reboot. This is does
not follow the behavior in real hardware.

This patch fixes this via set env->mcg_status to 0 during system reset.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Huang Ying 2010-01-05 16:32:24 +08:00 committed by Anthony Liguori
parent 0b987f1934
commit af364b418c
1 changed files with 2 additions and 0 deletions
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target-i386/helper.c
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@ -617,6 +617,8 @@ void cpu_reset(CPUX86State *env)
env->dr[7] = DR7_FIXED_1;
cpu_breakpoint_remove_all(env, BP_CPU);
cpu_watchpoint_remove_all(env, BP_CPU);
env->mcg_status = 0;
}
void cpu_x86_close(CPUX86State *env)