On 02.08.21 14:01, Joerg Roedel wrote:
> On Wed, Jul 28, 2021 at 08:29:41AM -0700, Dave Hansen wrote:
>> __set_memory_enc_dec() is turning into a real mess.  SEV, TDX and now
>> Hyper-V are messing around in here.
> 
> I was going to suggest a PV_OPS call where the fitting implementation
> for the guest environment can be plugged in at boot. There is TDX and an
> SEV(-SNP) case, a Hyper-V case, and likely more coming up from other
> cloud/hypervisor vendors. Hiding all these behind feature checks is not
> going to make things cleaner.

As those cases are all mutually exclusive, wouldn't a static_call() be
the appropriate solution?


Juergen