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x86: apic - unify verify_local_APIC

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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Cyrill Gorcunov 2008-08-15 13:51:22 +02:00 • committed by Ingo Molnar
parent 64e474d168
commit c93baa1ae5
1 changed files with 6 additions and 0 deletions
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6
arch/x86/kernel/apic_32.c
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@ -878,6 +878,12 @@ int __init verify_local_APIC(void)
*/ */
reg0 = apic_read(APIC_ID); reg0 = apic_read(APIC_ID);
apic_printk(APIC_DEBUG, "Getting ID: %x\n", reg0); 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. * The next two are just to see if we have sane values.