From: Andi Kleen <ak@suse.de>
To: Arjan van de Ven <arjan@infradead.org>
Cc: "Huang, Ying" <ying.huang@intel.com>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>, Andi Kleen <ak@suse.de>,
linux-kernel@vger.kernel.org
Subject: Re: ioremap_xxx() with EXEC enabled
Date: Wed, 30 Jan 2008 18:30:48 +0100 [thread overview]
Message-ID: <20080130173048.GA9812@bingen.suse.de> (raw)
In-Reply-To: <20080130074540.031b6799@laptopd505.fenrus.org>
On Wed, Jan 30, 2008 at 07:45:40AM -0800, Arjan van de Ven wrote:
> On Wed, 30 Jan 2008 17:32:10 +0800
> "Huang, Ying" <ying.huang@intel.com> wrote:
>
> > Hi,
> >
> > On i386, EFI may need to map EFI runtime code area as EXEC enabled
> > with ioremap(). But, I found that the memory are mapped as EXEC
> > disabled when mapped with ioremap() now. I think we may need a method
> > to map memory area as EXEC enabled with ioremap_xxx(). Some possible
> > interface schemes for mapping as EXEC enabled are as follow:
> >
> > - Interface scheme 1:
>
> scheme 3:
>
> set_memory_x(... )
On i386 EFI is unlikely to be in the direct mapping ...
-Andi
next prev parent reply other threads:[~2008-01-30 17:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-30 9:32 ioremap_xxx() with EXEC enabled Huang, Ying
2008-01-30 9:59 ` Andi Kleen
2008-01-30 13:00 ` huang ying
2008-01-30 13:22 ` Andi Kleen
2008-01-30 15:45 ` Arjan van de Ven
2008-01-30 17:30 ` Andi Kleen [this message]
2008-01-30 17:44 ` Arjan van de Ven
2008-01-30 18:35 ` Andi Kleen
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