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Re: [Qemu-devel] [PATCH 2/7] target-mips: support Page Frame Number Exte

From: Leon Alrae
Subject: Re: [Qemu-devel] [PATCH 2/7] target-mips: support Page Frame Number Extension field
Date: Wed, 29 Apr 2015 16:31:58 +0100
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0

> I think I wasn't expecting that because 32-bit kernels can run on MIPS64
> hardware using the same mfc0/mfhc0 instructions, so having a single
> internal representation in QEMU seemed simpler & less fragile, since the
> same source code needs to support both MIPS32 and MIPS64 anyway.

In my opinion implementing MIPS32 details in a different way than
specified in MIPS32 PRA would be actually more fragile. That could cause
just more confusion when implementing future MIPS32 PRA changes
affecting this area.


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