linux-kernel - Re: [PATCH v3 1/5] iommu: Add DOMAIN_ATTR_SPLIT

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: <20200109143646.GC12236@willie-the-truck>
Date:   Thu, 9 Jan 2020 14:36:47 +0000
From:   Will Deacon <will@...nel.org>
To:     Jordan Crouse <jcrouse@...eaurora.org>
Cc:     iommu@...ts.linux-foundation.org, robin.murphy@....com,
        linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, Joerg Roedel <joro@...tes.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/5] iommu: Add DOMAIN_ATTR_SPLIT_TABLES

On Mon, Dec 16, 2019 at 09:37:47AM -0700, Jordan Crouse wrote:
> Add a new attribute to enable and query the state of split pagetables
> for the domain.
> 
> Signed-off-by: Jordan Crouse <jcrouse@...eaurora.org>
> ---
> 
>  include/linux/iommu.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/linux/iommu.h b/include/linux/iommu.h
> index f2223cb..18c861e 100644
> --- a/include/linux/iommu.h
> +++ b/include/linux/iommu.h
> @@ -126,6 +126,7 @@ enum iommu_attr {
>  	DOMAIN_ATTR_FSL_PAMUV1,
>  	DOMAIN_ATTR_NESTING,	/* two stages of translation */
>  	DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE,
> +	DOMAIN_ATTR_SPLIT_TABLES,
>  	DOMAIN_ATTR_MAX,
>  };

Acked-by: Will Deacon <will@...nel.org>

Although a comment describing what this does wouldn't hurt.

Will