On 17/09/20 18:29, Sean Christopherson wrote: >> + vcpu->arch.efer = old_efer; >> + kvm_make_request(KVM_REQ_OUT_OF_MEMORY, vcpu); > I really dislike KVM_REQ_OUT_OF_MEMORY. It's redundant with -ENOMEM and > creates a huge discrepancy with respect to existing code, e.g. nVMX returns > -ENOMEM in a similar situation. Maxim, your previous version was adding some error handling to kvm_x86_ops.set_efer. I don't remember what was the issue; did you have any problems propagating all the errors up to KVM_SET_SREGS (easy), kvm_set_msr (harder) etc.? Paolo
