Re: [PATCH v5.4 1/1] iommu/vt-d: Fix agaw for a supported 48 bit guest address width

Hi Saeed, On 4/7/21 12:35 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

[PATCH v5.4 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 supported adjusted guest address width (SAGAW). This is from