Re: [PATCH 1/1] iommu/amd: Fix PASID format in INVALIDATE_IOTLB_PAGES command

[Joerg Roedel <joro@8bytes.org>]

On Wed, Feb 26, 2014 at 03:49:31PM -0600, suravee.suthikulpanit@amd.com wrote:
> From: Jay Cornwall <jay.cornwall@amd.com>
> 
> This patch corrects the PASID format in the INVALIDATE_IOTLB_PAGES
> command, which was caused by incorrect information in
> the AMD IOMMU Architectural Specification v2.01 document.
> 
>     Incorrect format:
>          cmd->data[0][16:23] = PASID[7:0]
>          cmd->data[1][16:27] = PASID[19:8]
> 
>      Correct format:
>          cmd->data[0][16:23] = PASID[15:8]
>          cmd->data[1][16:23] = PASID[7:0]
> 
> However, this does not affect the IOMMUv2 hardware implementation,
> and has been corrected since version 2.02 of the specification
> (available through AMD NDA).
> 
> Signed-off-by: Jay Cornwall <jay.cornwall@amd.com>
> Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>

Applied, thanks.

Does this mean that PASIDs are only 16 bits wide now from the former 20
bits?