From: Jason Lunz <lunz@falooley.org>
To: user-mode-linux-devel@lists.sourceforge.net
Subject: [uml-devel] Re: (implementation idea) Re: uml and nonstandard memory splits?
Date: Fri, 24 Mar 2006 16:40:34 +0000 (UTC) [thread overview]
Message-ID: <e017e2$hci$2@sea.gmane.org> (raw)
In-Reply-To: 200603241534.01844.blaisorblade@yahoo.it
blaisorblade@yahoo.it said:
> However, currently, the rounding can't be 0.5G, it must be 0.25G with the
> current code, and it's still fragile if the host code is changed.
>
> (arch/i386/Kconfig)
> config PAGE_OFFSET
> hex
> default 0xB0000000 if VMSPLIT_3G_OPT
> default 0x78000000 if VMSPLIT_2G
> default 0x40000000 if VMSPLIT_1G
> default 0xC0000000
Yes, I don't think other choices are too unlikely in the future.
0xB0000000 was only chosen because it prevents a typical 32-bit machine
with 1G of ram from having 1/8 of it in a little 128M highmem zone. In
the future, "typical" could likely be something else.
Jason
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next prev parent reply other threads:[~2006-03-24 16:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <dvv6ir$ajn$1@sea.gmane.org>
[not found] ` <20060323235044.GA7273@ccure.user-mode-linux.org>
[not found] ` <20060324004052.GA1897@knob.reflex>
2006-03-24 0:56 ` [uml-devel] (implementation idea) Re: uml and nonstandard memory splits? Blaisorblade
2006-03-24 2:30 ` [uml-devel] " Jeff Dike
2006-03-24 14:34 ` Blaisorblade
2006-03-24 16:40 ` Jason Lunz [this message]
2006-03-24 17:26 ` Jeff Dike
2006-03-27 22:30 ` Blaisorblade
2006-03-28 20:02 ` Jeff Dike
2006-03-28 22:05 ` [uml-devel] Re: [uml-user] " Blaisorblade
2006-03-28 22:09 ` Blaisorblade
2006-03-28 20:09 [uml-devel] " Jeff Dike
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