Commit 88921be3 authored by Andi Kleen's avatar Andi Kleen Committed by H. Peter Anvin

x86, mce: synchronize core after machine check handling

The example code in the IA32 SDM recommends to synchronize the CPU
after machine check handling. So do that here.

[ Impact: Spec compliance ]
Signed-off-by: default avatarAndi Kleen <ak@linux.intel.com>
Signed-off-by: default avatarHidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
parent 5706001a
......@@ -328,6 +328,8 @@ void machine_check_poll(enum mcp_flags flags, mce_banks_t *b)
* Don't clear MCG_STATUS here because it's only defined for
* exceptions.
*/
sync_core();
}
EXPORT_SYMBOL_GPL(machine_check_poll);
......@@ -501,6 +503,7 @@ void do_machine_check(struct pt_regs *regs, long error_code)
mce_wrmsrl(MSR_IA32_MCG_STATUS, 0);
out2:
atomic_dec(&mce_entry);
sync_core();
}
EXPORT_SYMBOL_GPL(do_machine_check);
......
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