linux-kernel - Re: [PATCH v2] arm64: allow ioremap_cache() to use existing RAM mappings

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] [day] [month] [year] [list]

Message-ID: <20131029164142.GF3472@arm.com>
Date:	Tue, 29 Oct 2013 16:41:42 +0000
From:	Catalin Marinas <catalin.marinas@....com>
To:	Mark Salter <msalter@...hat.com>
Cc:	Will Deacon <Will.Deacon@....com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] arm64: allow ioremap_cache() to use existing RAM
 mappings

On Thu, Oct 24, 2013 at 03:54:17PM +0100, Mark Salter wrote:
> Some drivers (ACPI notably) use ioremap_cache() to map an area which could
> either be outside of kernel RAM or in an already mapped reserved area of
> RAM. To avoid aliases with different caching attributes, ioremap() does
> not allow RAM to be remapped. But for ioremap_cache(), the existing kernel
> mapping may be used.
> 
> Signed-off-by: Mark Salter <msalter@...hat.com>

Looks good. Thanks.

-- 
Catalin
--
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/