Message ID | 20080814184652.179229281@gmail.com |
---|---|
State | New, archived |
Headers | show |
Series |
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Related | show |
Index: linux-2.6.git/arch/x86/kernel/apic_32.c =================================================================== --- linux-2.6.git.orig/arch/x86/kernel/apic_32.c 2008-08-14 22:18:00.000000000 +0400 +++ linux-2.6.git/arch/x86/kernel/apic_32.c 2008-08-14 22:21:49.000000000 +0400 @@ -882,6 +882,12 @@ 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.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> ---