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[xen-devel][PATCH][VTD] Fix apic pin to interrupt remapping table index
| To: | 'Keir Fraser' <Keir.Fraser@xxxxxxxxxxxxx> |
|---|---|
| Subject: | [xen-devel][PATCH][VTD] Fix apic pin to interrupt remapping table index |
| From: | "Han, Weidong" <weidong.han@xxxxxxxxx> |
| Date: | Wed, 3 Jun 2009 17:28:07 +0800 |
| Accept-language: | en-US |
| Acceptlanguage: | en-US |
| Cc: | 'xen-devel' <xen-devel@xxxxxxxxxxxxxxxxxxx>, 'Jan Beulich' <JBeulich@xxxxxxxxxx> |
| Delivery-date: | Wed, 03 Jun 2009 02:29:11 -0700 |
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| Thread-index: | AcnkLZrJFGVElBkwRdefjzY4Cbw2dw== |
| Thread-topic: | [xen-devel][PATCH][VTD] Fix apic pin to interrupt remapping table index |
Originally, it calls xmalloc to set index in ioapic_rte_to_remap_entry(). When make with debug=y, it may trigger spinlock BUG_ON because allocate memory with interrupt disabled. This patch doesn't allocate list_head entry in ioapic_rte_to_remap_entry(), instead allocate the array in enable_intremap() to avoid allocating memory with interrupt disabled. Signed-off-by: Weidong Han <weidong.han@xxxxxxxxx>
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