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authorWanpeng Li <wanpeng.li@hotmail.com>2016-08-23 20:07:19 +0800
committerThomas Gleixner <tglx@linutronix.de>2016-08-24 09:45:40 +0200
commit2e63ad4bd5dd583871e6602f9d398b9322d358d9 (patch)
tree744e9bc09310b68f0204c1a6bd8714f336b7b615 /Documentation
parentfa8410b355251fd30341662a40ac6b22d3e38468 (diff)
x86/apic: Do not init irq remapping if ioapic is disabled
native_smp_prepare_cpus -> default_setup_apic_routing -> enable_IR_x2apic -> irq_remapping_prepare -> intel_prepare_irq_remapping -> intel_setup_irq_remapping So IR table is setup even if "noapic" boot parameter is added. As a result we crash later when the interrupt affinity is set due to a half initialized remapping infrastructure. Prevent remap initialization when IOAPIC is disabled. Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Joerg Roedel <joro@8bytes.org> Link: http://lkml.kernel.org/r/1471954039-3942-1-git-send-email-wanpeng.li@hotmail.com Cc: stable@vger.kernel.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'Documentation')
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