Messages in this thread | | | Subject | Re: [PATCH 0/4] KVM: nVMX: Fix migration of nested guests when eVMCS is in use | From | Paolo Bonzini <> | Date | Mon, 3 May 2021 17:43:30 +0200 |
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On 03/05/21 17:08, Vitaly Kuznetsov wrote: > Win10 guests with WSL2 enabled sometimes crash on migration when > enlightened VMCS was used. The condition seems to be induced by the > situation when L2->L1 exit is caused immediately after migration and > before L2 gets a chance to run (e.g. when there's an interrupt pending).
Interesting, I think it gets to nested_vmx_vmexit before
if (kvm_check_request(KVM_REQ_GET_NESTED_STATE_PAGES, vcpu)) { if (unlikely(!kvm_x86_ops.nested_ops->get_nested_state_pages(vcpu))) { r = 0; goto out; } }
due to the infamous calls to check_nested_events that are scattered through KVM?
Paolo
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