Re: [PATCH v12 0/3] s390x: KVM: CPU Topology

Janosch Frank
2022-07-13T09:03:01Z

On 7/11/22 10:41, Pierre Morel wrote:
> Hi all,
>
> This new spin suppress the check for real cpu migration and
> modify the checking of valid function code inside the interception
> of the STSI instruction.
>
> The series provides:
> 0- Modification of the ipte lock handling to use KVM instead of the
> vcpu as an argument because ipte lock work on SCA which is uniq
> per KVM structure and common to all vCPUs.
> 1- interception of the STSI instruction forwarding the CPU topology
> 2- interpretation of the PTF instruction
> 3- a KVM capability for the userland hypervisor to ask KVM to
> setup PTF interpretation.
> 4- KVM ioctl to get and set the MTCR bit of the SCA in order to
> migrate this bit during a migration.

Please rebase before sending the next version