Re: [Xen-devel] Re: [Qemu-devel] Recursion in cpu_physical_memory_rw

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 15/11/06 11:12, "Herbert Xu" <herbert@xxxxxxxxxxxxxxxxxxx> wrote:

>> Could we add a recursion counter to the memory-access functions, and bail if
>> it reaches some limit?
> 
> Yes that would work too.  However, chips such as rtl8139 should never
> do MMIO in this case (the real hardware would never allow that to occur)
> so we should do that accordingly.

We'd take a patch for Xen to do it the 'proper way' with an extended
memory-access API if that is also acceptable for the upstream Qemu
maintainers.

 -- Keir



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