linux-kernel - [PATCH v4 03/22] iommu/vt-d: add a flag for pasid table bound status

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Message-Id: <1521774734-48433-4-git-send-email-jacob.jun.pan@linux.intel.com>
Date:   Thu, 22 Mar 2018 20:11:55 -0700
From:   Jacob Pan <jacob.jun.pan@...ux.intel.com>
To:     iommu@...ts.linux-foundation.org,
        LKML <linux-kernel@...r.kernel.org>,
        Joerg Roedel <joro@...tes.org>,
        David Woodhouse <dwmw2@...radead.org>,
        Jean-Philippe Brucker <jean-philippe.brucker@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rafael Wysocki <rafael.j.wysocki@...el.com>
Cc:     "Liu, Yi L" <yi.l.liu@...el.com>,
        Lan Tianyu <tianyu.lan@...el.com>,
        "Tian, Kevin" <kevin.tian@...el.com>,
        Raj Ashok <ashok.raj@...el.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Jean Delvare <khali@...ux-fr.org>,
        "Christoph Hellwig" <hch@...radead.org>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>
Subject: [PATCH v4 03/22] iommu/vt-d: add a flag for pasid table bound status

Adding a flag in device domain into to track whether a guest or
user PASID table is bound to a device.

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

diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index 13b44bb..e4a16dc 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -446,6 +446,7 @@ struct device_domain_info {
 	u8 pri_enabled:1;
 	u8 ats_supported:1;
 	u8 ats_enabled:1;
+	u8 pasid_table_bound:1;
 	u8 ats_qdep;
 	u64 fault_mask;	/* selected IOMMU faults to be reported */
 	struct device *dev; /* it's NULL for PCIe-to-PCI bridge */
-- 
2.7.4