From: Andi Kleen <andi@firstfloor.org>
To: "Huang, Ying" <ying.huang@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
akpm@linux-foundation.org, Yinghai Lu <yhlu.kernel@gmail.com>,
Chandramouli Narayanan <mouli@linux.intel.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH -mm -v5 0/3] i386/x86_64 boot: 32-bit boot protocol
Date: 17 Oct 2007 10:25:57 +0200 [thread overview]
Message-ID: <p73odeyxi3u.fsf@crumb.suse.de> (raw)
In-Reply-To: <1192586376.17856.26.camel@caritas-dev.intel.com>
"Huang, Ying" <ying.huang@intel.com> writes:
> Do you think it is a good idea to check the collision between setup data
> and memory area used during kernel boot through bootmem allocator?
You can't solve this through bootmem because x86-64 allocates memory
in several places before bootmem (using functions in e820.c) Right now
this is quite hackish with hard coded areas to avoid conflicts. But I
recently had a need to allocate more memory that early too and changed
the code to a generic early reservation interface. With that it would
be relatively easy to reserve.
-Andi
next prev parent reply other threads:[~2007-10-17 8:26 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-12 5:52 [PATCH -mm -v5 0/3] i386/x86_64 boot: 32-bit boot protocol Huang, Ying
2007-10-15 1:47 ` Huang, Ying
2007-10-17 1:59 ` Huang, Ying
2007-10-17 8:25 ` Andi Kleen [this message]
2007-10-17 9:05 ` Huang, Ying
2007-10-17 9:24 ` Andi Kleen
2007-10-18 6:44 ` Huang, Ying
2007-10-17 9:38 ` Eric W. Biederman
2007-10-18 6:57 ` Huang, Ying
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