Paolo Bonzini <pbonzini@xxxxxxxxxx> writes:
> On 8/8/23 01:01, Ackerley Tng wrote:
>> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
>> index 75d48379d94d..a1a28dd77b94 100644
>> --- a/arch/x86/kvm/x86.c
>> +++ b/arch/x86/kvm/x86.c
>> @@ -6351,7 +6351,14 @@ static int kvm_vm_move_enc_context_from(struct kvm *kvm, unsigned int source_fd)
>> if (r)
>> goto out_mark_migration_done;
>>
>> - r = static_call(kvm_x86_vm_move_enc_context_from)(kvm, source_kvm);
>> + /*
>> + * Different types of VMs will allow userspace to define if moving
>> + * encryption context should be supported.
>> + */
>> + if (kvm->arch.vm_move_enc_ctxt_supported &&
>> + kvm_x86_ops.vm_move_enc_context_from) {
>> + r = static_call(kvm_x86_vm_move_enc_context_from)(kvm, source_kvm);
>> + }
>
> Rather than "supported" this is more "required". So perhaps
> kvm->arch.use_vm_enc_ctxt_op?
>
> Paolo
Thanks, that is a great suggestion, I'll incorporate this in the next
revision!
