From: Andi Kleen Date: Mon, 12 Sep 2005 16:49:24 +0000 (+0200) Subject: [PATCH] x86-64: Don't assume APIC for boot processor has an APIC ID of zero X-Git-Tag: firefly_0821_release~41227 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=357e11d4cbbbb959a88a9bdbbf33a10f160b0823;p=firefly-linux-kernel-4.4.55.git [PATCH] x86-64: Don't assume APIC for boot processor has an APIC ID of zero Originally from Stuart Hayes. When setting up the APIC for the Uniprocessor kernel don't assume the CPU has an APIC ID of zero. This fixes boot with the UP kernel on Dell PowerEdge 6800/6850 4way systems. Cc: Stuart.Hayes@dell.com Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c index fc84bea42fd4..12e9d6ca7222 100644 --- a/arch/x86_64/kernel/apic.c +++ b/arch/x86_64/kernel/apic.c @@ -1051,7 +1051,7 @@ int __init APIC_init_uniprocessor (void) connect_bsp_APIC(); - phys_cpu_present_map = physid_mask_of_physid(0); + phys_cpu_present_map = physid_mask_of_physid(boot_cpu_id); apic_write_around(APIC_ID, boot_cpu_id); setup_local_APIC();