On Fri, Mar 7, 2025, at 23:02, Roman Kisel wrote: > The KVM/arm64 uses SMCCC to detect hypervisor presence. That code is > private, and it follows the SMCCC specification. Other existing and > emerging hypervisor guest implementations can and should use that > standard approach as well. > > Factor out a common infrastructure that the guests can use, update KVM > to employ the new API. The cenrtal notion of the SMCCC method is the > UUID of the hypervisor, and the API follows that. > > No functional changes. Validated with a KVM/arm64 guest. > > Signed-off-by: Roman Kisel <romank@xxxxxxxxxxxxxxxxxxx> Acked-by: Arnd Bergmann <arnd@xxxxxxxx>