Re: [PATCH 4/8] i386: hvf: Implement CPU kick

[Paolo Bonzini]

On 29/06/20 15:29, Roman Bolshakov wrote:
>>> macOS 11.0 Beta deprecated hv_vcpu_run() and introduced a special
>>> declaration for hv_vcpu_run_until(), that's not available 10.15 -
>>> HV_DEADLINE_FOREVER (UINT64_MAX, which is bigger than maximum value of
>>> VMX-preeemption counter). Perhaps the performance issue is addressed
>>> there.
>> Possibly.  I'm worried that the preemption-timer trick will fail to run
>> there, but we'll see.
>>
> Well, I've got new VM-exits (caused by zero preemption timer) on either
> of my laptops.

If you have already tried 11.0 that's great.  I was worried that it
would forcibly clear the preemption timer bit when passed
HV_DEADLINE_FOREVER.

Paolo