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Re: [Qemu-devel] [PATCH] virtio: Notice when the system doesn't support

From: Mark Cave-Ayland
Subject: Re: [Qemu-devel] [PATCH] virtio: Notice when the system doesn't support MSIx at all
Date: Thu, 21 May 2015 19:51:34 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.7.0

On 20/05/15 16:10, Richard Henderson wrote:

> On 05/20/2015 02:59 AM, Michael S. Tsirkin wrote:
>> On Tue, May 19, 2015 at 01:29:51PM -0700, Richard Henderson wrote:
>>> And do not issue an error_report in that case.
>>> Signed-off-by: Richard Henderson <address@hidden>
>>> ---
>>>  hw/virtio/virtio-pci.c | 15 ++++++++++-----
>>>  1 file changed, 10 insertions(+), 5 deletions(-)
>>> --
>>> This seems to be about the only sane way to test the value of
>>> msi_supported from here.  Thoughts?
>>> r~
>> Can you please include the qemu command-line that triggers the error
>> in the commit log?
> $ ../run/bin/qemu-system-alpha -drive file=foo.img,if=virtio,format=raw
> qemu-system-alpha: -drive file=foo.img,if=virtio,format=raw: unable to init
> msix vectors to 2

I also get the same message on qemu-system-sparc64 as below (FWIW I did
raise this on-list months ago but no-one replied to my post at the time):

./qemu-system-sparc64 -drive
file=debian-7.7.0-sparc-netinst.iso,if=virtio,readonly=on,index=1 -nographic



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