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Re: [Qemu-devel] [PATCH] target-mips: use CP0EnLo_XI instead of magic nu
From: |
Maciej W. Rozycki |
Subject: |
Re: [Qemu-devel] [PATCH] target-mips: use CP0EnLo_XI instead of magic number |
Date: |
Thu, 29 Jan 2015 11:08:18 +0000 (GMT) |
User-agent: |
Alpine 2.11 (LFD 23 2013-08-11) |
On Thu, 29 Jan 2015, Leon Alrae wrote:
> > And do we want to have CP0C3_LPA set in the few templates that do in the
> > first place? AFAICT we don't really implement LPA so this bit will
> > confuse software. Of course implementing it would be another option, not
> > very complicated AFAICS, and if we can track the requirement to update
> > MFC0 at that time, then the clean-up I mentioned above can be deferred
> > until then.
>
> In general I don't think it's a good idea to indicate presence of a
> feature in a CPU config if it isn't implemented at all in QEMU -- as you
> said, it will confuse software. As far as LPA goes I've got already an
> implementation of it (and XPA as well) which I haven't submitted
> upstream yet. I'll make sure it contains the change you suggested.
Great, I'll leave it to you to sort out then. Thanks!
Maciej