From: Robert Reif <reif@earthlink.net>
To: Artyom Tarasenko <atar4qemu@googlemail.com>
Cc: Blue Swirl <blauwirbel@gmail.com>, qemu-devel <qemu-devel@nongnu.org>
Subject: [Qemu-devel] Re: sparc32 SIMM size
Date: Sat, 22 Aug 2009 18:33:38 -0400 [thread overview]
Message-ID: <4A907242.8020104@earthlink.net> (raw)
In-Reply-To: <fb8d4f70908221317v3b3bb800s7e82595d3e6fe9ad@mail.gmail.com>
Artyom Tarasenko wrote:
>> You have to be careful when specifing a memory size on
>> the ss10/20 because a SIMM slot uses 64M reguardless of
>> the actual size of the SIMM. A smaller size will be mirrored
>> to fill the entire space and OBP checks for mirrioing to
>> determine the actual size. QEMU doesn't do any mirroring
>> for small SIMMS which will confuse OBP. I don't think
>> that is the issue are seeing but just something to keep in mind.
>>
>
> It's not an issue for SS-10/20, but may be an issue for SS-5 and
> below. SS-5 and earlier support maximal SIMM size of 32M. It doesn't
> seem to be reflected in hw/sun4m.c .
>
>
Look on page 71 Appendex AII Campus 2 (SS10) of the
Sun4m System Architecture manual for an explanation:
http://wikis.sun.com/display/FOSSdocs/Home
prev parent reply other threads:[~2009-08-22 22:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-22 20:17 [Qemu-devel] sparc32 SIMM size Artyom Tarasenko
2009-08-22 22:33 ` Robert Reif [this message]
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