linux-kernel - Re: [Xen-devel] [PATCH 1/2] swiotlb-xen: add missing xen_dma_map

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: <20131112144500.GB9435@phenom.dumpdata.com>
Date:	Tue, 12 Nov 2013 09:45:00 -0500
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	Stefano Stabellini <stefano.stabellini@...citrix.com>
Cc:	xen-devel@...ts.xensource.com, konrad@...nel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [Xen-devel] [PATCH 1/2] swiotlb-xen: add missing
 xen_dma_map_page call

On Tue, Nov 12, 2013 at 02:11:59PM +0000, Stefano Stabellini wrote:
> swiotlb-xen is missing a xen_dma_map_page call in
> xen_swiotlb_map_sg_attrs, in the slow path.

s/slow/bounce buffer/ I believe?
> 
> Signed-off-by: Stefano Stabellini <stefano.stabellini@...citrix.com>
> ---
>  drivers/xen/swiotlb-xen.c |    5 +++++
>  1 files changed, 5 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
> index a224bc7..1eac073 100644
> --- a/drivers/xen/swiotlb-xen.c
> +++ b/drivers/xen/swiotlb-xen.c
> @@ -555,6 +555,11 @@ xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
>  				sg_dma_len(sgl) = 0;
>  				return 0;
>  			}
> +			xen_dma_map_page(hwdev, pfn_to_page(map >> PAGE_SHIFT),
> +						map & ~PAGE_MASK,
> +						sg->length,
> +						dir,
> +						attrs);
>  			sg->dma_address = xen_phys_to_bus(map);
>  		} else {
>  			/* we are not interested in the dma_addr returned by
> -- 
> 1.7.2.5
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@...ts.xen.org
> http://lists.xen.org/xen-devel
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/