On Fri, 2023-08-11 at 11:00 -0600, Rob Herring wrote:

 	 
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 On Thu, Jul 27, 2023 at 03:59:57PM +0800, Yi-De Wu wrote:

quoted

From: "Yingshiuan Pan" <redacted>

VMM use this interface to create vcpu instance which is a fd, and

this

quoted

fd will be for any vcpu operations, such as setting vcpu registers

and

quoted

accepts the most important ioctl GZVM_VCPU_RUN which requests

GenieZone

quoted

hypervisor to do context switch to execute VM's vcpu context.

Signed-off-by: Yingshiuan Pan <redacted>
Signed-off-by: Jerry Wang <redacted>
Signed-off-by: Liju Chen <redacted>
Signed-off-by: Yi-De Wu <redacted>
---
 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?

Yes, there's KVM stuff in arch/arm64, but that is multi-arch.

hi Rob,

Thank you for the review, and the confirmation from Will was well
received. 

To be more specific, are you suggesting to 
- remove the `gzvm_arch.h`
from UAPI or 
- remove all the code under `arch/arm64/geniezone` to
somewhere like `drivers/virt/geniezone/arch`, or
- both? 

Regards,

quoted

 drivers/virt/geniezone/Makefile         |   3 +-
 drivers/virt/geniezone/gzvm_vcpu.c      | 250

++++++++++++++++++++++++

quoted

 drivers/virt/geniezone/gzvm_vm.c        |   5 +
 include/linux/gzvm_drv.h                |  21 ++
 include/uapi/linux/gzvm.h               | 136 +++++++++++++
 10 files changed, 564 insertions(+), 2 deletions(-)
 create mode 100644 arch/arm64/geniezone/vcpu.c
 create mode 100644 drivers/virt/geniezone/gzvm_vcpu.c