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

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Message-ID: <d00bd03c-9354-49d1-9a52-67091bb01980@linux.intel.com>
Date: Fri, 12 Jul 2024 15:39:57 +0800
From: Baolu Lu <baolu.lu@...ux.intel.com>
To: Jon Pan-Doh <pandoh@...gle.com>
Cc: baolu.lu@...ux.intel.com, David Woodhouse <dwmw2@...radead.org>,
 Kevin Tian <kevin.tian@...el.com>, Joerg Roedel <joro@...tes.org>,
 Will Deacon <will@...nel.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 2024/7/12 15:05, Jon Pan-Doh wrote:
> On Tue, Jul 9, 2024 at 7:45 PM Baolu Lu<baolu.lu@...ux.intel.com>  wrote:
>> Do you mind telling me on which platform did you test this fix? My
>> understanding is that modern VT-d hardware supports hardware pass
>> through mode, hence this piece of code won't be executed anymore.
> We tested it in a VM using an emulated vIOMMU setup. Hope that helps.

Okay, that's fine then. If you send a new version, you can take my

Reviewed-by: Lu Baolu <baolu.lu@...ux.intel.com>

Thanks,
baolu