Message-ID: <520B2327.9080404@iki.fi>
Date: Wed, 14 Aug 2013 09:26:47 +0300
From: Pekka Enberg <penberg@iki.fi>
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To: Linn Crosetto <linn@hp.com>
CC: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, x86@kernel.org,
        paulmck@linux.vnet.ibm.com, dhowells@redhat.com,
        mtk.manpages@gmail.com, yinghai@kernel.org, penberg@kernel.org,
        jacob.shin@amd.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3] x86: avoid remapping data in parse_setup_data()
References: <1376348482-1357-1-git-send-email-linn@hp.com> <1376430401-67445-1-git-send-email-linn@hp.com>
In-Reply-To: <1376430401-67445-1-git-send-email-linn@hp.com>
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On 8/14/13 12:46 AM, Linn Crosetto wrote:
> Type SETUP_PCI, added by setup_efi_pci(), may advertise a ROM size
> larger than early_memremap() is able to handle, which is currently
> limited to 256kB. If this occurs it leads to a NULL dereference in
> parse_setup_data().
>
> To avoid this, remap the setup_data header and allow parsing functions
> for individual types to handle their own data remapping.
>
> Signed-off-by: Linn Crosetto <linn@hp.com>

Reviewed-by: Pekka Enberg <penberg@kernel.org>
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