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From: Chuck Ebbert <cebbert@redhat.com>
To: Jan Beulich <jbeulich@novell.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86: mtrr range check correction
Date: Sun, 18 Feb 2007 16:33:20 -0500 [thread overview]
Message-ID: <45D8C620.2000009@redhat.com> (raw)
In-Reply-To: <45D2CBEF.76E4.0078.0@novell.com>
Jan Beulich wrote:
> Whether a region is below 1Mb is determined by its start rather than
> its end.
>
> This hunk got erroneously dropped from a previous patch.
>
> Signed-off-by: Jan Beulich <jbeulich@novell.com>
>
> --- linux-2.6.20/arch/i386/kernel/cpu/mtrr/generic.c 2007-02-04 19:44:54.000000000 +0100
> +++ 2.6.20-x86-mtrr-range-check/arch/i386/kernel/cpu/mtrr/generic.c 2007-02-09 10:17:26.000000000 +0100
> @@ -428,7 +428,7 @@ int generic_validate_add_page(unsigned l
> }
> }
>
> - if (base + size < 0x100) {
> + if (base < 0x100) {
> printk(KERN_WARNING "mtrr: cannot set region below 1 MiB (0x%lx000,0x%lx000)\n",
> base, size);
> return -EINVAL;
>
What about wraparound?
next prev parent reply other threads:[~2007-02-18 21:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-14 7:44 Jan Beulich
2007-02-18 21:33 ` Chuck Ebbert [this message]
2007-02-20 7:47 ` Jan Beulich
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