On Thu, May 14, 2020 at 10:08:37AM +0200, Vitaly Kuznetsov wrote:
> Vivek Goyal writes:
>
> > On Wed, May 13, 2020 at 04:23:55PM +0200, Vitaly Kuznetsov wrote:
> >
> > [..]
> >> >> Also,
> >> >> kdump kernel may not even support APF so it will get very confused when
> >> >> APF events get deliver
Vivek Goyal writes:
> On Wed, May 13, 2020 at 04:23:55PM +0200, Vitaly Kuznetsov wrote:
>
> [..]
>> >> Also,
>> >> kdump kernel may not even support APF so it will get very confused when
>> >> APF events get delivered.
>> >
>> > New kernel can just ignore these events if it does not support async
On Wed, May 13, 2020 at 04:23:55PM +0200, Vitaly Kuznetsov wrote:
[..]
> >> Also,
> >> kdump kernel may not even support APF so it will get very confused when
> >> APF events get delivered.
> >
> > New kernel can just ignore these events if it does not support async
> > pf?
> >
> > This is somewh
Vivek Goyal writes:
> On Wed, May 13, 2020 at 11:03:48AM +0200, Vitaly Kuznetsov wrote:
>> Vivek Goyal writes:
>>
>> > On Tue, May 12, 2020 at 05:50:53PM +0200, Vitaly Kuznetsov wrote:
>> >> Vivek Goyal writes:
>> >>
>> >> >
>> >> > So if we are using a common structure "kvm_vcpu_pv_apf_data"
On Wed, May 13, 2020 at 09:53:50AM -0400, Vivek Goyal wrote:
[..]
> > > And this notion of same structure being shared across multiple events
> > > at the same time is just going to create more confusion, IMHO. If we
> > > can decouple it by serializing it, that definitely feels simpler to
> > > u
On Wed, May 13, 2020 at 11:03:48AM +0200, Vitaly Kuznetsov wrote:
> Vivek Goyal writes:
>
> > On Tue, May 12, 2020 at 05:50:53PM +0200, Vitaly Kuznetsov wrote:
> >> Vivek Goyal writes:
> >>
> >> >
> >> > So if we are using a common structure "kvm_vcpu_pv_apf_data" to deliver
> >> > type1 and ty
Vivek Goyal writes:
> On Tue, May 12, 2020 at 05:50:53PM +0200, Vitaly Kuznetsov wrote:
>> Vivek Goyal writes:
>>
>> >
>> > So if we are using a common structure "kvm_vcpu_pv_apf_data" to deliver
>> > type1 and type2 events, to me it makes sense to retain existing
>> > KVM_PV_REASON_PAGE_READY
On Tue, May 12, 2020 at 05:50:53PM +0200, Vitaly Kuznetsov wrote:
> Vivek Goyal writes:
>
> > On Mon, May 11, 2020 at 06:47:48PM +0200, Vitaly Kuznetsov wrote:
> >> Concerns were expressed around APF delivery via synthetic #PF exception as
> >> in some cases such delivery may collide with real pa
Vivek Goyal writes:
> On Mon, May 11, 2020 at 06:47:48PM +0200, Vitaly Kuznetsov wrote:
>> Concerns were expressed around APF delivery via synthetic #PF exception as
>> in some cases such delivery may collide with real page fault. For type 2
>> (page ready) notifications we can easily switch to u
On Mon, May 11, 2020 at 06:47:48PM +0200, Vitaly Kuznetsov wrote:
> Concerns were expressed around APF delivery via synthetic #PF exception as
> in some cases such delivery may collide with real page fault. For type 2
> (page ready) notifications we can easily switch to using an interrupt
> instead
Concerns were expressed around APF delivery via synthetic #PF exception as
in some cases such delivery may collide with real page fault. For type 2
(page ready) notifications we can easily switch to using an interrupt
instead. Introduce new MSR_KVM_ASYNC_PF_INT mechanism and deprecate the
legacy on
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