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Re: [Xen-devel] IRQ affinity: Xen view different from pvops (konrad-pcif

To: "Dante Cinco" <dantecinco@xxxxxxxxx>
Subject: Re: [Xen-devel] IRQ affinity: Xen view different from pvops (konrad-pcifront) domU
From: "Jan Beulich" <JBeulich@xxxxxxxxxx>
Date: Wed, 10 Nov 2010 08:13:17 +0000
Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
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>>> On 10.11.10 at 02:18, Dante Cinco <dantecinco@xxxxxxxxx> wrote:
> I have a Fibre Channel HBA that I'm passing through to the pvops domU.
> In domU its IRQ 127 and I've affinitized it to VCPU0 (out of 16) by
> setting /proc/irq/127/smp_affinity to 0001 (default setting was FFFF).
> However, when I checked the interrupt bindings in Xen, it still shows
> IRQ 127 as being affinitized to all CPUs (all F's). I checked lspci in
> both dom0 and domU and the address portion (00000000fee00000) of the
> MSI address/data seem to match Xen's interrupt binding report (I
> expected the digits to the right of 'fee' to be non-zero if it's
> affinitized to one specific CPU).

See -unstable c/s 21625:0695a5cdcb42.


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