Re: [PATCH V2] iommu/amd - Set the device table entry PPR bit for IOMMU V2 devices
From: Alex Williamson
Date: Wed Dec 20 2017 - 14:03:02 EST
On Tue, 19 Dec 2017 16:15:41 -0600
Gary R Hook <gary.hook@xxxxxxx> wrote:
> The AMD IOMMU specification Rev 3.00 (December 2016) introduces a
> new Enhanced PPR Handling Support (EPHSup) bit in the MMIO register
> offset 0030h (IOMMU Extended Feature Register).
> When EPHSup=1, the IOMMU hardware requires the PPR bit of the
> device table entry (DTE) to be set in order to support PPR for a
> particular endpoint device.
> Please see https://support.amd.com/TechDocs/48882_IOMMU.pdf for
> this revision of the AMD IOMMU specification.
> Signed-off-by: Gary R Hook <gary.hook@xxxxxxx>
> 0 files changed
Hmm, something funky there, but looks fine otherwise. Applied to