Re: [PATCH] qemu does not have dcache aliases

Ralf Baechle wrote:

On Mon, Aug 21, 2006 at 04:16:21PM +0100, Maciej W. Rozycki wrote:

quoted

quoted

Well, the QEMU cpu has 2-way 2kB dcache... does not have aliasing
anyway. :-)

 I don't think emulating a bigger cache so that we can add aliases should 
be *that* difficult.  Adding aliases themselves might be a bit trickier, 
but the gain would certainly justify the hassle, wouldn't it?

The cache lookup for every access would have serious impact on performance.
The question is, is it worth the price?  Would such patches be acceptable
by the upstream qemu maintainers?

Likely not, given that performance is the prime criterion there.


Thiemo