On 4/20/2022 4:59 PM, Suravee Suthikulpanit via iommu wrote: > On AMD system with SNP enabled, IOMMU hardware checks the host translation > valid (TV) and guest translation valid (GV) bits in the device > table entry (DTE) before accessing the corresponded page tables. > > However, current IOMMU driver sets the TV bit for all devices > regardless of whether the host page table is in used. > This results in ILLEGAL_DEV_TABLE_ENTRY event for devices, which > do not the host page table root pointer set up. > > Thefore, only set TV bit when host or guest page tables are in used. > > Signed-off-by: Suravee Suthikulpanit <[email protected]>
Looks good to me. Reviewed-by: Vasant Hegde <[email protected]> -Vasant _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
