Re: [PATCH v2] iommu/amd: Fix interrupt remapping when disable guest_mode

[Suravee Suthikulpanit]

On 6/28/17 19:44, Joerg Roedel wrote:
> On Mon, Jun 26, 2017 at 04:28:04AM -0500, Suravee Suthikulpanit wrote:
> > Pass-through devices to VM guest can get updated IRQ affinity
> > information via irq_set_affinity() when not running in guest mode.
> > Currently, AMD IOMMU driver in GA mode ignores the updated information
> > if the pass-through device is setup to use vAPIC regardless of guest_mode.
> > This could cause invalid interrupt remapping.
> >
> > Also, the guest_mode bit should be set and cleared only when
> > SVM updates posted-interrupt interrupt remapping information.
> >
> > Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>
> > Cc: Joerg Roedel <jroedel@xxxxxxx>
>
> Nervermind, I added this fixes line and applied the patch:
>
> 	Fixes: d98de49a53e48 ('iommu/amd: Enable vAPIC interrupt remapping mode by default'

Thanks,

Suravee