linux-kernel - Re: [PATCH 2/4] iommu/dma: Do not init domain if broken_unmanaged

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Y9RVftHuARKQnfN1@Asurada-Nvidia>
Date:   Fri, 27 Jan 2023 14:51:42 -0800
From:   Nicolin Chen <nicolinc@...dia.com>
To:     Robin Murphy <robin.murphy@....com>
CC:     <jgg@...dia.com>, <kevin.tian@...el.com>, <joro@...tes.org>,
        <will@...nel.org>, <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <yong.wu@...iatek.com>,
        <matthias.bgg@...il.com>, <thierry.reding@...il.com>,
        <alex.williamson@...hat.com>, <cohuck@...hat.com>,
        <vdumpa@...dia.com>, <jonathanh@...dia.com>,
        <iommu@...ts.linux.dev>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-tegra@...r.kernel.org>, <kvm@...r.kernel.org>
Subject: Re: [PATCH 2/4] iommu/dma: Do not init domain if
 broken_unmanaged_domain

On Fri, Jan 27, 2023 at 09:59:50PM +0000, Robin Murphy wrote:
> External email: Use caution opening links or attachments
> 
> 
> On 2023-01-27 20:04, Nicolin Chen wrote:
> > Add a sanity of the broken_unmanaged_domain flag to reject the use of
> > dma-iommu in the early stage, if the flag is set by the iommu driver.
> 
> Realistically, iommu-dma will never be enabled on PPC32, let alone used.
> It will not be enabled on ARM until I've fixed any drivers which need
> fixing to work with it. We don't need to add dead code here.

OK. Sounds like I can drop this patch.

Thanks
Nicolin