Re: [PATCH] KVM: lapic: stop advertising DIRECTED_EOI when in-kernel IOAPIC is in use

[Vitaly Kuznetsov]

Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> writes:

> Devices which use level-triggered interrupts under Windows 2016 with
> Hyper-V role enabled don't work: Windows disables EOI broadcast in SPIV
> unconditionally. Our in-kernel IOAPIC implementation emulates an old IOAPIC
> version which has no EOI register so EOI never happens.
>
> The issue was discovered and discussed a while ago:
> https://www.spinics.net/lists/kvm/msg148098.html
>

Radim, Paolo,

do we have a consensus here? (I wouldn't mind re-writing commit message
in case you think we shouldn't blame Windows, I just want to have the
annoying bug fixed :-)

-- 
  Vitaly