From 1d3fbbf9fe8d5cd5f94256781cc69a4ac289a767 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Mon, 12 Sep 2005 18:49:24 +0200 Subject: [PATCH 1/1] [PATCH] x86-64: Don't trust boot_cpu_id in the mptable. It could be wrong for kexec or other cases. Read it from the CPU instead. Signed-off-by: Murali Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/apic.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c index 12e9d6ca7222..a759f4e74557 100644 --- a/arch/x86_64/kernel/apic.c +++ b/arch/x86_64/kernel/apic.c @@ -622,8 +622,7 @@ void __init init_apic_mappings(void) * Fetch the APIC ID of the BSP in case we have a * default configuration (or the MP table is broken). */ - if (boot_cpu_id == -1U) - boot_cpu_id = GET_APIC_ID(apic_read(APIC_ID)); + boot_cpu_id = GET_APIC_ID(apic_read(APIC_ID)); #ifdef CONFIG_X86_IO_APIC { -- 2.39.2