[PATCH 00/15] arm64/kvm: use common sysreg definitions

Mark Rutland mark.rutland at arm.com
Tue Mar 28 11:48:28 PDT 2017


On Wed, Mar 22, 2017 at 06:35:13PM +0000, Mark Rutland wrote:
> On Fri, Mar 10, 2017 at 06:35:55PM +0000, Will Deacon wrote:
> > On Fri, Mar 10, 2017 at 08:17:22AM +0000, Marc Zyngier wrote:
> 
> > > The next question is how do we merge this. Obviously, we can't split it
> > > between trees, and this is very likely to clash with anything that we
> > > will merge on the KVM side (the sysreg table is a popular place).
> > > 
> > > Will, Catalin: Would it make sense to create a stable branch with these
> > > patches, and merge it into both the arm64 and KVM trees? That'd make
> > > things easier...
> > 
> > I think the scope for conflict on our side is pretty high too, so a shared
> > branch might be the best way to go. I don't want to branch just yet though,
> > so I'll probably wait a week or so before setting something in stone.
> 
> Any further thoughts on this?
> 
> Christoffer has Acked the KVM bits, so if you're happy to do so for the
> arm64 bits I can make a stable branch.

Looking around, it doesn't look like there's anything outside of arm64
that'll conflict on the <asm/sysreg.h> changes, and git's happy to merge
my changes with Suzuki's changes currently queued in arm64's
for-next/core branch.

I think it would make sense for those to be in a common branch taken by
both the arm64 and KVM trees, with the KVM-specific parts being taken by
KVM alone atop of that.

Would everyone be happy with that?

For reference, I've updated my branches so that arm64/common-sysreg only
contains the common parts, with the KVM parts atop of that in
kvm/common-sysreg.

Thanks,
Mark.



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