From b9d1e4bd6e44f2a75340226eb5f762e16bb4652f Mon Sep 17 00:00:00 2001 From: Vivek Goyal Date: Wed, 11 Jan 2006 22:45:09 +0100 Subject: [PATCH] x86_64: x86_64 write apic id fix o Apic id is in most significant 8 bits of APIC_ID register. Current code is trying to write apic id to least significant 8 bits. This patch fixes it. o This fix enables booting uni kdump capture kernel on a cpu with non-zero apic id. Signed-off-by: Vivek Goyal Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/apic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86_64') diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c index 628aebf9f9a..c3239f6c22b 100644 --- a/arch/x86_64/kernel/apic.c +++ b/arch/x86_64/kernel/apic.c @@ -1066,7 +1066,7 @@ int __init APIC_init_uniprocessor (void) connect_bsp_APIC(); phys_cpu_present_map = physid_mask_of_physid(boot_cpu_id); - apic_write_around(APIC_ID, boot_cpu_id); + apic_write_around(APIC_ID, SET_APIC_ID(boot_cpu_id)); setup_local_APIC(); -- cgit v1.2.3