linux-kernel - [PATCH RFC v1 09/15] iommu/virtio: Update table format probing header

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Message-Id: <20210115121342.15093-10-vivek.gautam@arm.com>
Date:   Fri, 15 Jan 2021 17:43:36 +0530
From:   Vivek Gautam <vivek.gautam@....com>
To:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        iommu@...ts.linux-foundation.org,
        virtualization@...ts.linux-foundation.org
Cc:     joro@...tes.org, will.deacon@....com, mst@...hat.com,
        robin.murphy@....com, jean-philippe@...aro.org,
        eric.auger@...hat.com, alex.williamson@...hat.com,
        kevin.tian@...el.com, jacob.jun.pan@...ux.intel.com,
        yi.l.liu@...el.com, lorenzo.pieralisi@....com,
        shameerali.kolothum.thodi@...wei.com, vivek.gautam@....com
Subject: [PATCH RFC v1 09/15] iommu/virtio: Update table format probing header

Add info about asid_bits and additional flags to table format
probing header.

Signed-off-by: Vivek Gautam <vivek.gautam@....com>
Cc: Joerg Roedel <joro@...tes.org>
Cc: Will Deacon <will.deacon@....com>
Cc: Michael S. Tsirkin <mst@...hat.com>
Cc: Robin Murphy <robin.murphy@....com>
Cc: Jean-Philippe Brucker <jean-philippe@...aro.org>
Cc: Eric Auger <eric.auger@...hat.com>
Cc: Alex Williamson <alex.williamson@...hat.com>
Cc: Kevin Tian <kevin.tian@...el.com>
Cc: Jacob Pan <jacob.jun.pan@...ux.intel.com>
Cc: Liu Yi L <yi.l.liu@...el.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Cc: Shameerali Kolothum Thodi <shameerali.kolothum.thodi@...wei.com>
---
 include/uapi/linux/virtio_iommu.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/virtio_iommu.h b/include/uapi/linux/virtio_iommu.h
index 43821e33e7af..8a0624bab4b2 100644
--- a/include/uapi/linux/virtio_iommu.h
+++ b/include/uapi/linux/virtio_iommu.h
@@ -169,7 +169,10 @@ struct virtio_iommu_probe_pasid_size {
 struct virtio_iommu_probe_table_format {
 	struct virtio_iommu_probe_property	head;
 	__le16					format;
-	__u8					reserved[2];
+	__le16					asid_bits;
+
+	__le32					flags;
+	__u8					reserved[4];
 };
 
 struct virtio_iommu_req_probe {
-- 
2.17.1