linux-kernel - Re: [PATCH] iommu/vt-d: Fix identity map bounds in si_domain

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Message-Id: <172079780048.1698285.1657188076450408806.b4-ty@kernel.org>
Date: Fri, 12 Jul 2024 16:44:03 +0100
From: Will Deacon <will@...nel.org>
To: David Woodhouse <dwmw2@...radead.org>,
	Lu Baolu <baolu.lu@...ux.intel.com>,
	Kevin Tian <kevin.tian@...el.com>,
	Jon Pan-Doh <pandoh@...gle.com>
Cc: catalin.marinas@....com,
	kernel-team@...roid.com,
	Will Deacon <will@...nel.org>,
	Joerg Roedel <joro@...tes.org>,
	Robin Murphy <robin.murphy@....com>,
	"H. Peter Anvin" <hpa@...ux.intel.com>,
	Tejun Heo <tj@...nel.org>,
	iommu@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Sudheer Dantuluri <dantuluris@...gle.com>,
	Gary Zibrat <gzibrat@...gle.com>
Subject: Re: [PATCH] iommu/vt-d: Fix identity map bounds in si_domain_init()

On Tue, 09 Jul 2024 16:49:13 -0700, Jon Pan-Doh wrote:
> Intel IOMMU operates on inclusive bounds (both generally aas well as
> iommu_domain_identity_map()). Meanwhile, for_each_mem_pfn_range() uses
> exclusive bounds for end_pfn. This creates an off-by-one error when
> switching between the two.
> 
> 

Applied to iommu (intel/vt-d), thanks!

[1/1] iommu/vt-d: Fix identity map bounds in si_domain_init()
      https://git.kernel.org/iommu/c/31000732d56b

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
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