ng, Wei W; Zhang, Yang Z; kvm@vger.kernel.org
> > Cc: alex.william...@redhat.com
> > Subject: Re: [PATCH v2] KVM: x86: keep eoi exit bitmap accurate before
> > loading it.
> >
> > Il 28/08/2014 12:14, Wang, Wei W ha scritto:
> > > We will do some more tests on
nel.org
> Cc: alex.william...@redhat.com
> Subject: Re: [PATCH v2] KVM: x86: keep eoi exit bitmap accurate before
> loading it.
>
> Il 28/08/2014 12:14, Wang, Wei W ha scritto:
> > We will do some more tests on it to make sure there are no problems.
>
> No, I don't think ther
Il 28/08/2014 12:14, Wang, Wei W ha scritto:
> We will do some more tests on it to make sure there are no problems.
No, I don't think there are any easily-detected practical problems with
the patch. But I'm not sure I understand all the theoretical problems
and whether possible races are benign.
...@redhat.com
Subject: Re: [PATCH v2] KVM: x86: keep eoi exit bitmap accurate before loading
it.
Il 28/08/2014 08:17, Zhang, Yang Z ha scritto:
> > Program edge-triggered MSI for vector 123
> > Interrupt comes in, ISR[123]=1
> > Mask MSI
> > Program level-trigge
Il 28/08/2014 08:17, Zhang, Yang Z ha scritto:
> > Program edge-triggered MSI for vector 123
> > Interrupt comes in, ISR[123]=1
> > Mask MSI
> > Program level-triggered IOAPIC interrupt for vector 123
>
> You cannot assign the vector 123 to another trigger mode interrupt
> before p
Paolo Bonzini wrote on 2014-08-27:
> Il 27/08/2014 16:05, Wei Wang ha scritto:
> > Guest may mask the IOAPIC entry before issue EOI. In such case, EOI
> > will not be intercepted by the hypervisor, since the corresponding bit
> > in eoi_exit_bitmap is not set after the masking of IOAPIC entry.
> >
Il 27/08/2014 16:05, Wei Wang ha scritto:
> Guest may mask the IOAPIC entry before issue EOI. In such case,
> EOI will not be intercepted by the hypervisor, since the corresponding
> bit in eoi_exit_bitmap is not set after the masking of IOAPIC entry.
>
> The solution here is to OR eoi_exit_bitmap
Guest may mask the IOAPIC entry before issue EOI. In such case,
EOI will not be intercepted by the hypervisor, since the corresponding
bit in eoi_exit_bitmap is not set after the masking of IOAPIC entry.
The solution here is to OR eoi_exit_bitmap with tmr to make sure that
all level-triggered inte
