From: Michael Kelley Sent: Friday, October 4, 2019
3:33 PM
>
> From: Roman Kagan Sent: Friday, October 4, 2019 2:19 AM
> >
> > On Fri, Oct 04, 2019 at 03:01:51AM +, Michael Kelley wrote:
> > > From: Roman Kagan Sent: Thursday, October 3, 2019
> > > 5:53 AM
> > > > >
> > > > > AFAIU
From: Roman Kagan Sent: Friday, October 4, 2019 2:19 AM
>
> On Fri, Oct 04, 2019 at 03:01:51AM +, Michael Kelley wrote:
> > From: Roman Kagan Sent: Thursday, October 3, 2019
> > 5:53 AM
> > > >
> > > > AFAIU you're trying to mirror native_x2apic_icr_write() here but this is
> > > >
On Fri, Oct 04, 2019 at 03:01:51AM +, Michael Kelley wrote:
> From: Roman Kagan Sent: Thursday, October 3, 2019 5:53
> AM
> > >
> > > AFAIU you're trying to mirror native_x2apic_icr_write() here but this is
> > > different from what hv_apic_icr_write() does
> > > (SET_APIC_DEST_FIELD(id)).
>
From: Roman Kagan Sent: Thursday, October 3, 2019 5:53 AM
> >
> > AFAIU you're trying to mirror native_x2apic_icr_write() here but this is
> > different from what hv_apic_icr_write() does
> > (SET_APIC_DEST_FIELD(id)).
>
> Right. In xapic mode the ICR2 aka the high 4 bytes of ICR is programmed
On Thu, Oct 03, 2019 at 12:54:03PM +0200, Vitaly Kuznetsov wrote:
> Roman Kagan writes:
>
> > Now that there's Hyper-V IOMMU driver, Linux can switch to x2apic mode
> > when supported by the vcpus.
> >
> > However, the apic access functions for Hyper-V enlightened apic assume
> > xapic mode
Roman Kagan writes:
> Now that there's Hyper-V IOMMU driver, Linux can switch to x2apic mode
> when supported by the vcpus.
>
> However, the apic access functions for Hyper-V enlightened apic assume
> xapic mode only.
>
> As a result, Linux fails to bring up secondary cpus when run as a guest
>
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