On 22.06.20 17:46, Collin Walling wrote: > DIAGNOSE 0x318 (diag318) sets information regarding the environment > the VM is running in (Linux, z/VM, etc) and is observed via > firmware/service events. > > This is a privileged s390x instruction that must be intercepted by > SIE. Userspace handles the instruction as well as migration. Data > is communicated via VCPU register synchronization. > > The Control Program Name Code (CPNC) is stored in the SIE block. The > CPNC along with the Control Program Version Code (CPVC) are stored > in the kvm_vcpu_arch struct. > > This data is reset on load normal and clear resets. > > Signed-off-by: Collin Walling <walling@xxxxxxxxxxxxx> > Reviewed-by: Janosch Frank <frankja@xxxxxxxxxxxxx> LGTM Reviewed-by: David Hildenbrand <david@xxxxxxxxxx> -- Thanks, David / dhildenb
