Re: [PATCH RFC v1 08/15] iommu: Add asid_bits to arm smmu-v3 stage1 table info
From: Jean-Philippe Brucker <hidden>
Date: 2021-03-03 19:29:48
Also in:
linux-arm-kernel, linux-iommu, lkml
On Fri, Jan 15, 2021 at 05:43:35PM +0530, Vivek Gautam wrote:
quoted hunk
aisd_bits data is required to prepare stage-1 tables for arm-smmu-v3. Signed-off-by: Vivek Gautam <redacted> Cc: Joerg Roedel <joro@8bytes.org> Cc: Will Deacon <redacted> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Jean-Philippe Brucker <redacted> Cc: Eric Auger <eric.auger@redhat.com> Cc: Alex Williamson <redacted> Cc: Kevin Tian <kevin.tian@intel.com> Cc: Jacob Pan <redacted> Cc: Liu Yi L <redacted> Cc: Lorenzo Pieralisi <redacted> Cc: Shameerali Kolothum Thodi <redacted> --- include/uapi/linux/iommu.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)diff --git a/include/uapi/linux/iommu.h b/include/uapi/linux/iommu.h index 082d758dd016..96abbfc7c643 100644 --- a/include/uapi/linux/iommu.h +++ b/include/uapi/linux/iommu.h@@ -357,7 +357,7 @@ struct iommu_pasid_smmuv3 { __u32 version; __u8 s1fmt; __u8 s1dss; - __u8 padding[2]; + __u16 asid_bits;
Is this used anywhere? This struct is passed from host userspace to host kernel to attach the PASID table, so I don't think it needs an asid_bits field. Thanks, Jean _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization