[lkml]   [2008]   [Aug]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] x86: fix probe_nr_irqs for xen
Yinghai Lu wrote:
> like system vectors with smp-ipi etc?

More or less. Xen currently uses 6 per-cpu event channels, and it maps
each to its own irq. My plan is to allocate just 6 irqs, map 6 vectors
to them, and bind each event channel to a vector/cpu pair. If nothing
else, it will make /proc/interrupts somewhat sane again.

>> Also, implementing probe_nr_irqs() in a more generic (rather than
>> io_apic-specific) way. Using some interface that queries each irq chip
>> for how many irqs it supports, or something.
> hope we can kill nr_irqs/NR_IRQS

When irqs are truely dynamically allocated?


 \ /
  Last update: 2008-08-22 02:05    [W:0.122 / U:10.388 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site