Re: [PATCH 0/6] KVM: x86: Unhost the *_CMD MSR mess

Paolo Bonzini
2023-03-27T15:47:29Z

On 3/27/23 17:28, Sean Christopherson wrote:
>> On 3/22/23 02:14, Sean Christopherson wrote:
>>> Revert the FLUSH_L1D enabling, which has multiple fatal bugs, clean up
>>> the existing PRED_CMD handling, and reintroduce FLUSH_L1D virtualization
>>> without inheriting the mistakes made by PRED_CMD.
>>>
>>> The last patch hardens SVM against one of the bugs introduced in the
>>> FLUSH_L1D enabling.
>>>
>>> I'll post KUT patches tomorrow. I have the tests written (and they found
>>> bugs in my code, :shocked-pikachu:), just need to write the changelogs.
>>> Wanted to get this out sooner than later as I'm guessing I'm not the only
>>> one whose VMs won't boot on Intel CPUs...
>> Hi Sean,
>>
>> did you post them?
> No, I'll get that done today (I pinky swear this time).

Ok, you can also send me a pull request if you prefer (or I can apply
the patches to kvm/next myself of course).

Paolo