On 04/12/19 16:07, Catherine Ho wrote: >> Ok, so the problem is that some MSR didn't exist in that version. Which > I thought in my platform, the only MSR didn't exist is MSR_IA32_VMX_BASIC > (0x480). If I remove this kvm_msr_entry_add(), everything is ok, the guest can > be boot up successfully. > MSR_IA32_VMX_BASIC was added in kvm-4.10. Maybe the issue is the _value_ that is being written to the VM is not valid? Can you check what's happening in vmx_restore_vmx_basic? Paolo
