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Re: [Qemu-devel] [PATCH] fix configure for mips o32
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From: |
Rtp |
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Subject: |
Re: [Qemu-devel] [PATCH] fix configure for mips o32 |
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Date: |
Thu, 04 Jun 2009 11:18:59 +0200 |
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User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.2 (gnu/linux) |
Paul Brook <address@hidden> writes:
Hi,
> On Wednesday 03 June 2009, Arnaud Patard wrote:
>> Paul Brook <address@hidden> writes:
>> > On Wednesday 03 June 2009, Arnaud Patard wrote:
>> >> The commit 1ad2134f914dfd4c8f92307c94c9a5a1e28f0059 is defining
>> >> target_phys_bits and set it to 64 for all mips machines including mipsel
>> >> machines which are 32 bit. This patch set it to 32.
>> >
>> > MIPS32 CPUs have a 36-bit physical address space. That's what the old
>> > code said anyway.
>>
>> Is there more information than that in the old code ? I really thought
>> mips32 4Kc have 32-bit address paths not 36.
>
> I suspect you're confusing physical and virtual addresses.
>
fwiw, found out where I read that. At
http://www.mips.com/products/processors/hard-ip-cores/4kc-hard-ip-core/.
Arnaud