Re: [Xen-devel] [PATCH][HVM] Removing 1:1 mapping from qemu-dm

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 28 Jun 2006, at 08:13, Nakajima, Jun wrote:

> The patch removes the 1:1 mapping against HVM guests from qemu-dm,
> allowing to have bigger guests than qemu-dm. This is also the first 
> step
> for enabling balloning with HVM guests.
>
> It sets up mapping dynamically, and thus it can cause some latency for
> I/O operations for HVM guests. I don't see visible latency yet, but I
> think we need to tune the hashing size.
What do all the shadow-mode changes do? I see you add an extra 
writable-mapping refcount to tlbflush_timestamp (only 4 bits) -- why is 
that needed?
 -- Keir


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