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SubjectRe: [PATCH v4 2/2] KVM: nSVM: implement ondemand allocation of the nested state
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.?


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