Commit c93baa1a authored by Cyrill Gorcunov's avatar Cyrill Gorcunov Committed by Ingo Molnar
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x86: apic - unify verify_local_APIC 



Signed-off-by: default avatarCyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 64e474d1

arch/x86/kernel/apic_32.c

+6 −0
Original line number Diff line number Diff line
@@ -878,6 +878,12 @@ int __init verify_local_APIC(void) 
	 */

	reg0 = apic_read(APIC_ID);

	apic_printk(APIC_DEBUG, "Getting ID: %x\n", reg0);

	apic_write(APIC_ID, reg0 ^ APIC_ID_MASK);

	reg1 = apic_read(APIC_ID);

	apic_printk(APIC_DEBUG, "Getting ID: %x\n", reg1);

	apic_write(APIC_ID, reg0);

	if (reg1 != (reg0 ^ APIC_ID_MASK))

		return 0;



	/*

	 * The next two are just to see if we have sane values.