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Message-ID: <defdccc8-449d-42a7-aee6-8ac212a777ba@intel.com>
Date: Thu, 8 Feb 2024 17:23:59 +0800
From: Yi Liu <yi.l.liu@...el.com>
To: "Tian, Kevin" <kevin.tian@...el.com>, "joro@...tes.org" <joro@...tes.org>,
"jgg@...dia.com" <jgg@...dia.com>, "baolu.lu@...ux.intel.com"
<baolu.lu@...ux.intel.com>
CC: "alex.williamson@...hat.com" <alex.williamson@...hat.com>,
"robin.murphy@....com" <robin.murphy@....com>, "eric.auger@...hat.com"
<eric.auger@...hat.com>, "nicolinc@...dia.com" <nicolinc@...dia.com>,
"kvm@...r.kernel.org" <kvm@...r.kernel.org>, "chao.p.peng@...ux.intel.com"
<chao.p.peng@...ux.intel.com>, "yi.y.sun@...ux.intel.com"
<yi.y.sun@...ux.intel.com>, "iommu@...ts.linux.dev" <iommu@...ts.linux.dev>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-kselftest@...r.kernel.org" <linux-kselftest@...r.kernel.org>, "Duan,
Zhenzhong" <zhenzhong.duan@...el.com>, "joao.m.martins@...cle.com"
<joao.m.martins@...cle.com>
Subject: Re: [PATCH rc 8/8] iommu/vt-d: Add missing dirty tracking set for
parent domain
On 2024/2/8 16:53, Tian, Kevin wrote:
>> From: Liu, Yi L <yi.l.liu@...el.com>
>> Sent: Thursday, February 8, 2024 4:23 PM
>>
>> @@ -4760,6 +4790,12 @@ static int intel_iommu_set_dirty_tracking(struct
>> iommu_domain *domain,
>> if (ret)
>> goto err_unwind;
>>
>> + if (dmar_domain->nested_parent) {
>> + ret = parent_domain_set_dirty_tracking(dmar_domain,
>> enable);
>> + if (ret)
>> + goto err_unwind;
>> + }
>> +
>
> there also lack of setting dirty tracking when a device is attached to the
> nested domain while the parent already has dirty-tracking enabled.
>
> but looks even w/o nesting this is missed in the attach path.
>
> could be fixed separately. so for this one:
it's fixed here.
https://lore.kernel.org/linux-iommu/20240208091414.28133-1-yi.l.liu@intel.com/
> Reviewed-by: Kevin Tian <kevin.tian@...el.com>
--
Regards,
Yi Liu
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