Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> writes:
> Sean Christopherson <sean.j.christopherson@xxxxxxxxx> writes:
>
>> RSM emulation is currently broken on VMX when the interrupted guest has
>> CR4.VMXE=1. Stop dancing around the issue of HF_SMM_MASK being set when
>> loading SMSTATE into architectural state, e.g. by toggling it for
>> problematic flows, and simply clear HF_SMM_MASK prior to loading
>> architectural state (from SMRAM save state area).
>>
>> Reported-by: Jon Doron <arilou@xxxxxxxxx>
>> Cc: Jim Mattson <jmattson@xxxxxxxxxx>
>> Cc: Liran Alon <liran.alon@xxxxxxxxxx>
>> Cc: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
>> Fixes: 5bea5123cbf0 ("KVM: VMX: check nested state and CR4.VMXE against SMM")
>> Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
>
> I checked Hyper-V 2019 + secureboot on both VMX and SVM and they seem to
> boot fine. So,
Doh, it actually was Hyper-V 2016, not 2019.
--
Vitaly
