linux-kernel - Re: [PATCH v3 3/3] QEMU-AER: Qemu changes to support AER for VFIO-PCI devices

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Message-ID: <20130205080436.GV23213@redhat.com>
Date:	Tue, 5 Feb 2013 10:04:36 +0200
From:	Gleb Natapov <gleb@...hat.com>
To:	Blue Swirl <blauwirbel@...il.com>
Cc:	"Pandarathil, Vijaymohan R" <vijaymohan.pandarathil@...com>,
	Alex Williamson <alex.williamson@...hat.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	"Ortiz, Lance E" <lance.oritz@...com>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	"qemu-devel@...gnu.org" <qemu-devel@...gnu.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 3/3] QEMU-AER: Qemu changes to support AER for
 VFIO-PCI devices

On Sun, Feb 03, 2013 at 04:36:11PM +0000, Blue Swirl wrote:
> On Sun, Feb 3, 2013 at 2:10 PM, Pandarathil, Vijaymohan R
> <vijaymohan.pandarathil@...com> wrote:
> >         - Create eventfd per vfio device assigned to a guest and register an
> >           event handler
> >
> >         - This fd is passed to the vfio_pci driver through the SET_IRQ ioctl
> >
> >         - When the device encounters an error, the eventfd is signalled
> >           and the qemu eventfd handler gets invoked.
> >
> >         - In the handler decide what action to take. Current action taken
> >           is to terminate the guest.
> 
> Usually this is not OK, but I guess this is not guest triggerable.
> 
Still not OK. Why not stop a guest with appropriate stop reason?

--
			Gleb.
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