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Re: [Qemu-devel] [PATCH 03/14] target-ppc: use separate indices for vari


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH 03/14] target-ppc: use separate indices for various translation modes
Date: Wed, 17 Sep 2014 02:22:19 -0400 (EDT)

> What if instead of having a "mmu_index" for the mmu arrays, we have a pointer
> to the "mmu context".  This does imply an extra memory load on the fast path,
> but probably not an extra instruction.
> 
> With this, we can suddenly afford to have a relatively large number of mmu
> contexts, with which we could implement address space numbers for relevant
> targets.
> 
> It is, of course, a much larger change, but perhaps it's of larger benefit.

Sounds good.  I can give it a shot---in the meanwhile, since I forgot to
Cc qemu-ppc, Alex can you review/apply patch 1?

Paolo



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