Re: [PATCH 0/9 v2] vfio-pci: add support for Freescale IOMMU (PAMU)

From: Scott Wood
Date: Tue Dec 10 2013 - 15:29:38 EST


My e-mail address is <scottwood@xxxxxxxxxxxxx>, not
<IMCEAEX-_O=MMS_OU=EXTERNAL+20+28FYDIBOHF25SPDLT
+29_CN=RECIPIENTS_CN=F0FAAC8D7E74473A9EE1C45B068D838A@xxxxxxxxxxxxxxxxxxxxxxxxx>

On Tue, 2013-12-10 at 05:37 +0000, Bharat.Bhushan@xxxxxxxxxxxxx wrote:
>
> > -----Original Message-----
> > From: Wood Scott-B07421
> > Sent: Saturday, December 07, 2013 12:55 AM
> > To: Bhushan Bharat-R65777
> > Cc: Alex Williamson; linux-pci@xxxxxxxxxxxxxxx; agraf@xxxxxxx; Yoder Stuart-
> > B08248; iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx; bhelgaas@xxxxxxxxxx; linuxppc-
> > dev@xxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx
> > Subject: Re: [PATCH 0/9 v2] vfio-pci: add support for Freescale IOMMU (PAMU)
> >
> > If the administrator does not opt into this partial loss of isolation, then once
> > you run out of MSI groups, new users should not be able to set up MSIs.
>
> So mean vfio should use Legacy when out of MSI banks?

Yes, if the administrator hasn't granted permission to share.

-Scott



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