linux-kernel - RE: [PATCH 1/1] iommu/vt-d: Remove control over Execute-Requested requests

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Message-ID: <BN9PR11MB5276E2EA3F2E7691127C369A8CD52@BN9PR11MB5276.namprd11.prod.outlook.com>
Date: Tue, 25 Jun 2024 02:24:43 +0000
From: "Tian, Kevin" <kevin.tian@...el.com>
To: Lu Baolu <baolu.lu@...ux.intel.com>, Joerg Roedel <joro@...tes.org>, "Liu,
 Yi L" <yi.l.liu@...el.com>, Jacob Pan <jacob.jun.pan@...ux.intel.com>
CC: Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>,
	"iommu@...ts.linux.dev" <iommu@...ts.linux.dev>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 1/1] iommu/vt-d: Remove control over Execute-Requested
 requests

> From: Lu Baolu <baolu.lu@...ux.intel.com>
> Sent: Monday, June 24, 2024 11:24 AM
> 
> The VT-d specification has removed architectural support of the requests
> with pasid with a value of 1 for Execute-Requested (ER). And the NXE bit
> in the pasid table entry and XD bit in the first-stage paging Entries are
> deprecated accordingly.
> 
> Remove the programming of these bits to make it consistent with the spec.
> 
> Suggested-by: Jacob Pan <jacob.jun.pan@...ux.intel.com>
> Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com>

Reviewed-by: Kevin Tian <kevin.tian@...el.com>