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Date: Tue, 4 Mar 2014 15:12:51 +0100 From: Joerg Roedel <joro@...tes.org> To: suravee.suthikulpanit@....com Cc: iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org, Jay Cornwall <jay.cornwall@....com> Subject: Re: [PATCH 1/1] iommu/amd: Fix PASID format in INVALIDATE_IOTLB_PAGES command On Wed, Feb 26, 2014 at 03:49:31PM -0600, suravee.suthikulpanit@....com wrote: > From: Jay Cornwall <jay.cornwall@....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@....com> > Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@....com> Applied, thanks. Does this mean that PASIDs are only 16 bits wide now from the former 20 bits? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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