Re: [Qemu-devel] [Qemu-ppc] [PATCH 02/16] target-ppc: Rework storage of VPA registration state

[David Gibson <david@gibson.dropbear.id.au>]

On Thu, Nov 01, 2012 at 11:10:33AM +0100, Alexander Graf wrote:
> 
> On 30.10.2012, at 04:24, David Gibson wrote:
> 
> > With PAPR guests, hypercalls allow registration of the Virtual Processor
> > Area (VPA), SLB shadow and dispatch trace log (DTL), each of which allow
> > for certain communication between the guest and hypervisor.  Currently, we
> > store the addresses of the three areas and the size of the dtl in
> > CPUPPCState.
> > 
> > The SLB shadow and DTL are variable sized, with the size being retrieved
> > from within the registered memory area at the hypercall time.  This size
> > can later be overwritten with other information, however, so we need to
> > save the size as of registration time.  We already do this for the DTL,
> > but not for the SLB shadow, so this patch fixes that.
> > 
> > In addition, we change the storage of the VPA information to use fixed
> > size integer types which will make life easier for syncing this data with
> > KVM, which we will need in future.
> > 
> > Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
> 
> The commit message seems to not match the patch contents. I'll fix
> that up.

Sorry, thanks.  I think the described change was in an earlier
version, but I'm not sure wuite when it fell out.

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
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