[PATCH v3 12/19] arm/arm64: KVM: refactor/wrap vgic_set/get_attr()

Christoffer Dall christoffer.dall at linaro.org
Wed Nov 5 04:57:05 PST 2014

On Wed, Nov 05, 2014 at 10:27:43AM +0000, Andre Przywara wrote:
> Hi Christoffer,
> On 04/11/14 19:30, Christoffer Dall wrote:
> > On Fri, Oct 31, 2014 at 05:26:47PM +0000, Andre Przywara wrote:
> >> vgic_set_attr() and vgic_get_attr() contain both code specific for
> >> the emulated GIC as well as code for the userland facing, generic
> >> part of the GIC.
> >> Split the guest GIC facing code of from the generic part to allow
> >> easier splitting later.
> >>
> >> Signed-off-by: Andre Przywara <andre.przywara at arm.com>
> > 
> > It's not really clear to me which data is specific to the emulated gic
> > and which is not or why you have to do this (yet), for example, the
> > _common function is now dealing with the GRP_ADDR case which is very
> > GICv2 specific (so far).  But I assume this will make sense as I
> > progress through the series.
> Admittedly this is somewhat of a corner case. Actually I tried to keep
> as much code common (in vgic.c) as possible, and it was possible without
> much pain for GRP_ADDR and kvm_vgic_addr.
> Also I consider this call part of the switching and connecting
> functionality of the VGIC.
> Looking at the code again I think I had it in -emul.c before, but
> decided to move it back for some reason (probably some other code
> dependency which needed to be exposed). So unless I find some time ;-)
> and a good reason to move it I tend to keep it here.
That's fine, my comment was more directed at the commit message than the
code itself; the patch itself looks ok.


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