* [PATCH] Fix serial interrupt's destination
@ 2010-09-10 1:08 Yang, Sheng
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From: Yang, Sheng @ 2010-09-10 1:08 UTC (permalink / raw)
To: Keir Fraser; +Cc: xen-devel@lists.xensource.com
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Lowest Priority can't use with invalid cpu_mask, and the default value of
CPU_MASK_ALL may cover CPU which wasn't online.
[-- Attachment #2: serial_fix.patch --]
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diff --git a/xen/arch/x86/smpboot.c b/xen/arch/x86/smpboot.c
--- a/xen/arch/x86/smpboot.c
+++ b/xen/arch/x86/smpboot.c
@@ -1015,7 +1015,7 @@
irq_vector[irq] = FIRST_HIPRIORITY_VECTOR + seridx + 1;
per_cpu(vector_irq, cpu)[FIRST_HIPRIORITY_VECTOR + seridx + 1] = irq;
irq_cfg[irq].vector = FIRST_HIPRIORITY_VECTOR + seridx + 1;
- irq_cfg[irq].cpu_mask = (cpumask_t)CPU_MASK_ALL;
+ irq_cfg[irq].cpu_mask = cpu_online_map;
}
/* IPI for cleanuping vectors after irq move */
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2010-09-10 1:08 [PATCH] Fix serial interrupt's destination Yang, Sheng
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