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xen-devel
Re: [Xen-devel] [PATCH] ioemu: fix INTx disable bit in MSI-INTx translat
On Thu, 2009-04-16 at 16:44 +0800, Yuji Shimada wrote:
> On Wed, 15 Apr 2009 21:40:52 +0800
> Qing He <qing.he@xxxxxxxxx> wrote:
>
> > Fix the bug introduced in commit 8c771eb6: when msi-intx
> > translation is enabled, int disable bit in PCI_COMMAND is set.
> > This approach has two issues:
> > 1. for some (buggy) devices, set INTx bit will also disable
> > MSI so that MSI doesn't work any more.
> > 2. it's never re-enabled when msi translation is turned off.
> > If the guest uses INTx, it can't receive any interrupts
> > from then.
> >
> > This patch leaves INTx disable bit unset if MSI-INTx translation
> > is used.
>
> I have sent the patch to fix the issue that you pointed out.
>
> The following patch is.
> http://lists.xensource.com/archives/html/xen-devel/2009-04/msg00300.html
>
> The patch has already applied in commit
> 290b6d18585c887ff2cfa30b239aa2fecfcd0308.
Seems I didn't notice that. I'll have a look.
Thanks,
Qing
>
> Your changeset seem to be old.
> Could you test the latest qemu-xen?
>
> Thanks,
> --
> Yuji Shimada
>
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