On 03/02/21 18:36, Sean Christopherson wrote:
I'm not at all opposed to preventing KVM from accessing EPC, but I really don't want to add a special check in KVM to avoid reading EPC. KVM generally isn't aware of physical backings, and the relevant KVM code is shared between all architectures.
Yeah, special casing KVM is almost always the wrong thing to do. Anything that KVM can do, other subsystems will do as well.
Paolo
