On 16/05/2024 3:22 am, Edgecombe, Rick P wrote:
On Wed, 2024-05-15 at 13:27 +0000, Huang, Kai wrote:
kvm_zap_gfn_range() looks a generic function. I think it makes more sense
to let the callers to explicitly check whether VM is TDX guest and do the
KVM_BUG_ON()?
Other TDX changes will prevent this function getting called. So basically like
you are suggesting. This change is to catch any new cases that pop up, which we
can't do at the caller.
But I think we need to see whether calling kvm_zap_gfn_range() is legal
or not for TDX guest case by case, but not having a universal rule that
this cannot be called for TDX guest, right?
