From: Vivek Goyal <vgoyal@in.ibm.com>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
Don Zickus <dzickus@redhat.com>,
fastboot@osdl.org, Horms <horms@verge.net.au>,
Jan Kratochvil <lace@jankratochvil.net>,
Magnus Damm <magnus.damm@gmail.com>,
linux-kernel@vger.kernel.org
Subject: Re: [Fastboot] [CFT] ELF Relocatable x86 and x86_64 bzImages
Date: Mon, 14 Aug 2006 15:57:01 -0400 [thread overview]
Message-ID: <20060814195701.GD2519@in.ibm.com> (raw)
In-Reply-To: <44E0D2DB.7030003@zytor.com>
On Mon, Aug 14, 2006 at 12:45:31PM -0700, H. Peter Anvin wrote:
> Vivek Goyal wrote:
> >>>
> >>What about once the kernel is booted?
> >
> >Sorry did not understand the question. Few more lines will help.
> >
>
> Is this field intended to protect any kind of memory during the early
> boot phase of the kernel proper, or only the decompressor?
>
I think it should protect against any dynamic memory usage during early
boot phase too till we reach a point where kernel is aware of BIOS provided
memory maps and kernel memory area usage can be controlled with the help
of BIOS provided/User defined memory maps.
In i386 implementation Eric is alredy taking into account the memory
used by bootmem bitmap and initial page tables. I have not looked into
x86_64 kernel code whether do I need to make such adjustments. It worked
for me so did not bother much. I will look into it.
Thanks
Vivek
next prev parent reply other threads:[~2006-08-14 19:57 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <aec7e5c30606300145p441d8d0xd89fab5e87de5a22@mail.gmail.com>
[not found] ` <20060705222448.GC992@in.ibm.com>
[not found] ` <aec7e5c30607051932r49bbcc7eh2c190daa06859dcc@mail.gmail.com>
[not found] ` <20060706081520.GB28225@host0.dyn.jankratochvil.net>
[not found] ` <aec7e5c30607070147g657d2624qa93a145dd4515484@mail.gmail.com>
[not found] ` <20060707133518.GA15810@in.ibm.com>
[not found] ` <20060707143519.GB13097@host0.dyn.jankratochvil.net>
[not found] ` <20060710233219.GF16215@in.ibm.com>
[not found] ` <20060711010815.GB1021@host0.dyn.jankratochvil.net>
[not found] ` <m1d5c92yv4.fsf@ebiederm.dsl.xmission.com>
2006-07-31 16:19 ` [CFT] ELF Relocatable x86 and x86_64 bzImages Eric W. Biederman
2006-07-31 20:25 ` Vivek Goyal
2006-07-31 21:00 ` [Fastboot] " Vivek Goyal
2006-08-01 2:31 ` Eric W. Biederman
2006-08-01 2:34 ` H. Peter Anvin
2006-08-01 3:44 ` Eric W. Biederman
2006-08-01 4:25 ` Jan Kratochvil
2006-08-01 9:09 ` Eric W. Biederman
2006-08-01 9:43 ` Jan Kratochvil
2006-08-01 11:28 ` Eric W. Biederman
2006-08-04 21:08 ` Don Zickus
2006-08-04 21:25 ` Eric W. Biederman
2006-08-04 23:43 ` Don Zickus
2006-08-05 7:49 ` Eric W. Biederman
2006-08-05 16:07 ` Eric W. Biederman
2006-08-07 17:44 ` Don Zickus
2006-08-07 18:08 ` Eric W. Biederman
2006-08-07 23:57 ` Don Zickus
2006-08-08 5:01 ` Eric W. Biederman
2006-08-08 19:36 ` Don Zickus
2006-08-09 20:06 ` Don Zickus
2006-08-10 6:09 ` Eric W. Biederman
2006-08-10 13:13 ` Vivek Goyal
2006-08-10 17:05 ` Eric W. Biederman
2006-08-10 18:18 ` Vivek Goyal
2006-08-10 20:09 ` Eric W. Biederman
2006-08-11 21:25 ` Don Zickus
2006-08-12 7:20 ` Eric W. Biederman
2006-08-12 15:25 ` Don Zickus
2006-08-12 19:41 ` Eric W. Biederman
2006-08-13 20:06 ` Andi Kleen
2006-08-13 21:44 ` Eric W. Biederman
2006-08-14 16:51 ` [Fastboot] " Vivek Goyal
2006-08-14 17:04 ` H. Peter Anvin
2006-08-14 18:11 ` Vivek Goyal
2006-08-14 19:32 ` H. Peter Anvin
2006-08-14 19:42 ` Vivek Goyal
2006-08-14 19:45 ` H. Peter Anvin
2006-08-14 19:57 ` Vivek Goyal [this message]
2006-08-14 20:10 ` Eric W. Biederman
2006-08-14 20:59 ` Vivek Goyal
2006-08-14 21:15 ` Eric W. Biederman
2006-08-14 20:00 ` Eric W. Biederman
2006-08-08 23:36 ` Andi Kleen
2006-08-25 20:16 ` Vivek Goyal
2006-08-25 20:16 ` Vivek Goyal
[not found] <6EIOG-2xY-31@gated-at.bofh.it>
[not found] ` <6EIOG-2xY-33@gated-at.bofh.it>
[not found] ` <6EIOG-2xY-35@gated-at.bofh.it>
[not found] ` <6EIOG-2xY-37@gated-at.bofh.it>
[not found] ` <6EIOG-2xY-39@gated-at.bofh.it>
[not found] ` <6EIOG-2xY-19@gated-at.bofh.it>
[not found] ` <6Gf5M-2zt-23@gated-at.bofh.it>
[not found] ` <6Gfpt-30C-49@gated-at.bofh.it>
[not found] ` <6GhAA-6bP-19@gated-at.bofh.it>
[not found] ` <6Gx2C-436-5@gated-at.bofh.it>
[not found] ` <6HhoT-5E7-33@gated-at.bofh.it>
[not found] ` <6HhRQ-6uk-3@gated-at.bofh.it>
2006-08-09 12:40 ` [Fastboot] " Bodo Eggert
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