On Fri, Aug 27, 2021, Mathieu Desnoyers wrote:
> > So there are effectively three reasons we want a delay:
> >
> > 1. To allow sched_setaffinity() to coincide with ioctl(KVM_RUN) before KVM
> > can
> > enter the guest so that the guest doesn't need an arch-specific VM-Exit
> > source.
> >
- On Aug 27, 2021, at 7:23 PM, Sean Christopherson sea...@google.com wrote:
> On Fri, Aug 27, 2021, Mathieu Desnoyers wrote:
[...]
>> Does it reproduce if we randomize the delay to have it picked randomly from
>> 0us
>> to 100us (with 1us step) ? It would remove a lot of the needs for
>>
- On Aug 26, 2021, at 7:54 PM, Sean Christopherson sea...@google.com wrote:
> On Thu, Aug 26, 2021, Mathieu Desnoyers wrote:
>> - On Aug 25, 2021, at 8:51 PM, Sean Christopherson sea...@google.com
>> wrote:
>> >> >> + r = sched_setaffinity(0, sizeof(allowed_mask),
>> >>
On Thu, Aug 26, 2021, Mathieu Desnoyers wrote:
> - On Aug 25, 2021, at 8:51 PM, Sean Christopherson sea...@google.com
> wrote:
> >> >> + r = sched_setaffinity(0, sizeof(allowed_mask),
> >> >> _mask);
> >> >> + TEST_ASSERT(!r, "sched_setaffinity failed, errno = %d
- On Aug 25, 2021, at 8:51 PM, Sean Christopherson sea...@google.com wrote:
> On Mon, Aug 23, 2021, Mathieu Desnoyers wrote:
>> [ re-send to Darren Hart ]
>>
>> - On Aug 23, 2021, at 11:18 AM, Mathieu Desnoyers
>> mathieu.desnoy...@efficios.com wrote:
>>
>> > - On Aug 20, 2021, at
On Mon, Aug 23, 2021, Mathieu Desnoyers wrote:
> [ re-send to Darren Hart ]
>
> - On Aug 23, 2021, at 11:18 AM, Mathieu Desnoyers
> mathieu.desnoy...@efficios.com wrote:
>
> > - On Aug 20, 2021, at 6:50 PM, Sean Christopherson sea...@google.com
> > wrote:
> >
> >> Add a test to verify
[ re-send to Darren Hart ]
- On Aug 23, 2021, at 11:18 AM, Mathieu Desnoyers
mathieu.desnoy...@efficios.com wrote:
> - On Aug 20, 2021, at 6:50 PM, Sean Christopherson sea...@google.com
> wrote:
>
>> Add a test to verify an rseq's CPU ID is updated correctly if the task is
>> migrated
- On Aug 20, 2021, at 6:50 PM, Sean Christopherson sea...@google.com wrote:
> Add a test to verify an rseq's CPU ID is updated correctly if the task is
> migrated while the kernel is handling KVM_RUN. This is a regression test
> for a bug introduced by commit 72c3c0fe54a3 ("x86/kvm: Use
Add a test to verify an rseq's CPU ID is updated correctly if the task is
migrated while the kernel is handling KVM_RUN. This is a regression test
for a bug introduced by commit 72c3c0fe54a3 ("x86/kvm: Use generic xfer
to guest work function"), where TIF_NOTIFY_RESUME would be cleared by KVM
