On Tue, Feb 25, 2025, at 23:25, Roman Kisel wrote:

On 2/24/2025 11:24 PM, Arnd Bergmann wrote:

quoted

On Tue, Feb 25, 2025, at 00:22, Roman Kisel wrote:

quoted

Hi Arnd,

If you want to declare a uuid here, I think you should remove the
ARM_SMCCC_VENDOR_HYP_UID_HYPERV_REG_{0,1,2,3} macros and just
have UUID in normal UUID_INIT() notation as we do for
other UUIDs.

I'd gladly stick to that provided I have your support of touching
KVM's code! As the SMCCC document states, there shall be an UUID,
and in the kernel, there would be

#define ARM_SMCCC_VENDOR_KVM_UID UUID_INIT(.......)
#define ARM_SMCCC_VENDOR_HYP_UID UUID_INIT(.......)

Hence, the ARM_SMCCC_VENDOR_HYP_UID_*_REG_{0,1,2,3} can be removed as
you're suggesting.

Yes, I think that's the best way forward, as it improves
the existing KVM code and all future functions like it.

    Arnd