Re: [PATCH 5.4 v2 1/1] iommu/vt-d: Fix agaw for a supported 48 bit guest address width

On Mon, Apr 12, 2021 at 06:25:44PM +, Saeed Mirzamohammadi wrote: > Hi Greg, > > This patch fixes an issue with the IOMMU driver and it only applies to 5.4, > 4.19, and 4.14 stable kernels. May I know when this patch would be available > in the stable kernels? > > Subject: iommu/vt-d: Fix

Re: [PATCH 5.4 v2 1/1] iommu/vt-d: Fix agaw for a supported 48 bit guest address width

Hi Greg, This patch fixes an issue with the IOMMU driver and it only applies to 5.4, 4.19, and 4.14 stable kernels. May I know when this patch would be available in the stable kernels? Subject: iommu/vt-d: Fix agaw for a supported 48 bit guest address width Thanks, Saeed > On Apr 11, 2021,

Re: [PATCH 5.4 v2 1/1] iommu/vt-d: Fix agaw for a supported 48 bit guest address width

I guess you need to ask Greg KH with this Cc-ing to sta...@vger.kernel.org. Best regards, baolu On 2021/4/12 3:36, Saeed Mirzamohammadi wrote: Hi Lu, Thanks for the review. May I know when do we expect this to be applied to 5.4? Thanks, Saeed On Apr 7, 2021, at 5:25 PM, Lu Baolu

Re: [PATCH 5.4 v2 1/1] iommu/vt-d: Fix agaw for a supported 48 bit guest address width

On 4/8/21 2:40 AM, Saeed Mirzamohammadi wrote: The IOMMU driver calculates the guest addressability for a DMA request based on the value of the mgaw reported from the IOMMU. However, this is a fused value and as mentioned in the spec, the guest width should be calculated based on the minimum of

[PATCH 5.4 v2 1/1] iommu/vt-d: Fix agaw for a supported 48 bit guest address width

The IOMMU driver calculates the guest addressability for a DMA request based on the value of the mgaw reported from the IOMMU. However, this is a fused value and as mentioned in the spec, the guest width should be calculated based on the minimum of supported adjusted guest address width (SAGAW)