From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Matt Fleming <matt@console-pimps.org>
Cc: "hpanvin@gmail.com" <hpa@zytor.com>,
linux-kernel@vger.kernel.org, x86@kernel.org,
Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <ming@elte.hu>,
Zhang Rui <rui.zhang@intel.com>,
Huang Ying <huang.ying.caritas@gmail.com>
Subject: Re: [PATCH] x86, efi: Calling __pa() with an ioremap'd address is invalid
Date: Tue, 11 Oct 2011 17:23:09 +0100 [thread overview]
Message-ID: <20111011162309.GA8582@srcf.ucam.org> (raw)
In-Reply-To: <1318348689.4060.118.camel@mfleming-mobl1.ger.corp.intel.com>
On Tue, Oct 11, 2011 at 04:58:09PM +0100, Matt Fleming wrote:
> Maybe the extra indirection isn't that bad and no one will care? If so,
> then sure, a unified version sounds like a plan. I was just hesitant of
> changing the existing 64-bit implementation for fear of receiving
> replies like "you've now made the 64-bit path slower".
If we have UEFI calls on the fast path then I think we're already
losing. I'd favour simplicity over performance here, personally.
--
Matthew Garrett | mjg59@srcf.ucam.org
prev parent reply other threads:[~2011-10-11 16:23 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-11 12:54 [PATCH] x86, efi: Calling __pa() with an ioremap'd address is invalid Matt Fleming
2011-10-11 13:03 ` Matthew Garrett
2011-10-11 13:10 ` Matt Fleming
2011-10-11 15:45 ` hpanvin@gmail.com
2011-10-11 15:58 ` Matt Fleming
2011-10-11 16:23 ` Matthew Garrett [this message]
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