From: Yinghai Lu <yinghai@kernel.org>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@elte.hu>,
the arch/x86 maintainers <x86@kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Subject: Re: brk patches..
Date: Sun, 01 Mar 2009 18:12:33 -0800 [thread overview]
Message-ID: <49AB4091.6060701@kernel.org> (raw)
In-Reply-To: <49AB3C70.7090701@goop.org>
Jeremy Fitzhardinge wrote:
> H. Peter Anvin wrote:
>> Jeremy Fitzhardinge wrote:
>>
>>> (To be specific: I reshape the guest e820 table so that it doesn't have
>>> memory in any forbidden areas of the host e820 table. That may require
>>> moving the pseudo-physical address of pages into a new overflow e820
>>> entry, which would also require allocating pages for the p2m radix
>>> tree.)
>>>
>>>
>>
>> Isn't that the domain builder's job?
>>
>
> No. It just provides a flat memory map from 0-max_pfn. I want to avoid
> the overlap between pseudo-phys and machine memory so that the resource
> manager doesn't get confused by overlapping ranges, and so that it
> places the pci window in the same place as native.
where will those mem allocator needed?
if it is used after finish_e820_parsing(), you could use find_e820_area()
YH
next prev parent reply other threads:[~2009-03-02 2:14 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-28 1:51 [PATCH] Simple brk allocator for very early allocations Jeremy Fitzhardinge
2009-02-28 1:51 ` [PATCH] x86: add brk allocation for very, " Jeremy Fitzhardinge
2009-02-28 1:51 ` [PATCH] x86: reserve brk earlier Jeremy Fitzhardinge
2009-02-28 1:51 ` [PATCH] x86-32: use brk segment for allocating initial kernel pagetable Jeremy Fitzhardinge
2009-02-28 7:02 ` Yinghai Lu
2009-02-28 7:05 ` J Jeremy Fitzhardinge
2009-02-28 7:15 ` J Ingo Molnar
2009-02-28 7:39 ` does boot loader check uncompressed kernel size? Yinghai Lu
2009-02-28 7:47 ` Cyrill Gorcunov
2009-02-28 7:54 ` Yinghai Lu
2009-02-28 8:08 ` H. Peter Anvin
2009-02-28 20:42 ` Yinghai Lu
2009-02-28 7:52 ` brk patches Yinghai Lu
2009-02-28 8:08 ` H. Peter Anvin
2009-02-28 8:17 ` Jeremy Fitzhardinge
2009-02-28 20:40 ` Yinghai Lu
2009-03-01 23:53 ` Jeremy Fitzhardinge
2009-03-02 1:02 ` Yinghai Lu
2009-03-02 1:07 ` H. Peter Anvin
2009-03-02 1:16 ` Jeremy Fitzhardinge
2009-03-02 1:36 ` H. Peter Anvin
2009-03-02 1:54 ` Jeremy Fitzhardinge
2009-03-02 2:12 ` Yinghai Lu [this message]
2009-03-01 1:23 ` [PATCH] x86: put initial_pg_tables into bss Yinghai Lu
2009-03-01 8:31 ` [PATCH] x86: put initial_pg_tables into bss -v2 Yinghai Lu
2009-03-01 9:20 ` H. Peter Anvin
2009-03-01 17:49 ` Yinghai Lu
2009-03-01 18:06 ` Yinghai Lu
2009-03-01 23:29 ` H. Peter Anvin
2009-03-02 0:55 ` Yinghai Lu
2009-03-09 8:15 ` [PATCH] x86: put initial_pg_tables into .bss -v4 Yinghai Lu
2009-03-09 15:41 ` H. Peter Anvin
2009-03-09 17:35 ` Yinghai Lu
2009-03-09 18:28 ` H. Peter Anvin
2009-03-11 1:39 ` Jeremy Fitzhardinge
2009-03-09 7:45 ` [PATCH] x86: put initial_pg_tables into bss -v2 Yinghai Lu
2009-02-28 8:07 ` does boot loader check uncompressed kernel size? H. Peter Anvin
2009-02-28 8:17 ` J Jeremy Fitzhardinge
2009-02-28 7:30 ` J Yinghai Lu
2009-02-28 1:51 ` [PATCH] x86: use brk allocation for DMI Jeremy Fitzhardinge
2009-02-28 1:51 ` [PATCH] x86: leave _brk_end defined Jeremy Fitzhardinge
2009-02-28 5:23 ` [PATCH] Simple brk allocator for very early allocations Andrew Morton
2009-02-28 6:30 ` Jeremy Fitzhardinge
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