arm64: kvm + RT
Jan Kiszka
jan.kiszka at siemens.com
Tue Oct 5 03:01:02 PDT 2021
On 05.10.21 11:52, Thomas Gleixner wrote:
> Jan,
>
> On Mon, Oct 04 2021 at 19:54, Jan Kiszka wrote:
>> what's the state of getting kvm working (again?) along RT? Seems
>> HAVE_POSIX_CPU_TIMERS_TASK_WORK is in conflict with KVM but a
>> precondition for RT on recent kernels. What's the story behind that?
>
> the ARM64 KVM implementation is incorrect vs. TIF handling before
> VMENTER which breaks the posix cpu timers task work assumptions and also
> violates a few other expectations. AFAICT the arm64 folks are working on
> that, but you have to ask them directly what the state of this is.
>
Thanks, then let's try this: Marc, what is the status of this?
Jan
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