From d1530d82e02fd96d4634a6d6f6538c8b778c43af Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Fri, 7 Apr 2006 19:49:42 +0200 Subject: [PATCH] [PATCH] x86_64: Clear APIC feature bit when local APIC is disabled Needed for other checks later in ACPI. Pointed out by Len Brown Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/setup.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index 0856ad444f..c50b06765a 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -353,8 +353,10 @@ static __init void parse_cmdline_early (char ** cmdline_p) if (fullarg(from, "enable_timer_pin_1")) disable_timer_pin_1 = -1; - if (fullarg(from, "nolapic") || fullarg(from, "disableapic")) + if (fullarg(from, "nolapic") || fullarg(from, "disableapic")) { + clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability); disable_apic = 1; + } if (fullarg(from, "noapic")) skip_ioapic_setup = 1; -- 2.39.5