Messages in this thread |  | | | Date | Thu, 26 Apr 2012 12:17:21 +0100 | | From | Stefano Stabellini <> | | Subject | Re: [Xen-devel] [PATCH] xen: use the pirq number to check the pirq_eoi_map |
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On Thu, 26 Apr 2012, David Vrabel wrote: > On 25/04/12 16:11, Stefano Stabellini wrote: > > In pirq_check_eoi_map use the pirq number rather than the Linux irq > > number to check whether an eoi is needed in the pirq_eoi_map. > > What buggy behaviour does this patch fix? It would be nice if this was > included in the patch description.
The irq number is not always identical to the pirq number so if we wrongly use the irq number to check the pirq_eoi_map we are going to check for the wrong pirq to EOI. As a consequence some interrupts might not be EOI'ed by the guest correctly.
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