Re: [PATCH v5 04/12] virt: geniezone: Add vcpu support

[Will Deacon]

On Fri, Aug 11, 2023 at 11:00:54AM -0600, Rob Herring wrote:
> On Thu, Jul 27, 2023 at 03:59:57PM +0800, Yi-De Wu wrote:
> > From: "Yingshiuan Pan" <yingshiuan.pan@xxxxxxxxxxxx>
> > 
> > VMM use this interface to create vcpu instance which is a fd, and this
> > fd will be for any vcpu operations, such as setting vcpu registers and
> > accepts the most important ioctl GZVM_VCPU_RUN which requests GenieZone
> > hypervisor to do context switch to execute VM's vcpu context.
> > 
> > Signed-off-by: Yingshiuan Pan <yingshiuan.pan@xxxxxxxxxxxx>
> > Signed-off-by: Jerry Wang <ze-yu.wang@xxxxxxxxxxxx>
> > Signed-off-by: Liju Chen <liju-clr.chen@xxxxxxxxxxxx>
> > Signed-off-by: Yi-De Wu <yi-de.wu@xxxxxxxxxxxx>
> > ---
> >  arch/arm64/geniezone/Makefile           |   2 +-
> >  arch/arm64/geniezone/gzvm_arch_common.h |  20 ++
> >  arch/arm64/geniezone/vcpu.c             |  88 +++++++++
> >  arch/arm64/geniezone/vm.c               |  11 ++
> >  arch/arm64/include/uapi/asm/gzvm_arch.h |  30 +++
> 
> I'm almost certain that the arm64 maintainers will reject putting this 
> here. What is the purpose of the split with drivers/virt/? Do you plan 
> to support another arch in the near future?

Thanks, Rob. You're absolutely right that this doesn't belong in the
architecture code.

Will