linux-kernel - [PATCH V9 02/10] iommu/uapi: Define a mask for bind data

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Message-Id: <1580277713-66934-3-git-send-email-jacob.jun.pan@linux.intel.com>
Date:   Tue, 28 Jan 2020 22:01:45 -0800
From:   Jacob Pan <jacob.jun.pan@...ux.intel.com>
To:     iommu@...ts.linux-foundation.org,
        LKML <linux-kernel@...r.kernel.org>,
        "Lu Baolu" <baolu.lu@...ux.intel.com>,
        Joerg Roedel <joro@...tes.org>,
        David Woodhouse <dwmw2@...radead.org>
Cc:     "Yi Liu" <yi.l.liu@...el.com>,
        "Tian, Kevin" <kevin.tian@...el.com>,
        Raj Ashok <ashok.raj@...el.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        "Christoph Hellwig" <hch@...radead.org>,
        Jean-Philippe Brucker <jean-philippe@...aro.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Eric Auger <eric.auger@...hat.com>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>
Subject: [PATCH V9 02/10] iommu/uapi: Define a mask for bind data

Memory type related guest PASID bind data can be grouped together for
one simple check.
Link: https://lore.kernel.org/linux-iommu/20200109095123.17ed5e6b@jacob-builder/

Signed-off-by: Jacob Pan <jacob.jun.pan@...ux.intel.com>
---
 include/uapi/linux/iommu.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/iommu.h b/include/uapi/linux/iommu.h
index 4ad3496e5c43..fcafb6401430 100644
--- a/include/uapi/linux/iommu.h
+++ b/include/uapi/linux/iommu.h
@@ -284,7 +284,10 @@ struct iommu_gpasid_bind_data_vtd {
 	__u32 pat;
 	__u32 emt;
 };
-
+#define IOMMU_SVA_VTD_GPASID_EMT_MASK	(IOMMU_SVA_VTD_GPASID_CD | \
+					 IOMMU_SVA_VTD_GPASID_EMTE | \
+					 IOMMU_SVA_VTD_GPASID_PCD |  \
+					 IOMMU_SVA_VTD_GPASID_PWT)
 /**
  * struct iommu_gpasid_bind_data - Information about device and guest PASID binding
  * @version:	Version of this data structure
-- 
2.7.4