Re: [PATCH] KVM: IOAPIC: Do not check polarity

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Avi Kivity <avi <at> redhat.com> writes:
> 
> While qemu uses active-high interrupts throughout, kvm is meant to be 
> useful with other userspace (or for emulating other chipsets) and thus 
> needs correct polarity emulation.
> 
> If the guest programs polarity to active-low, this indicates either a 
> guest bug or a bios bug.  Is it possible the bios does not communicate 
> the fact that pci interrupts are active high correctly?
> 

The guest gets the polarity from the BIOS MP table, which I added. I defined
the polarity and trigger mode "low level". I will change that to "high level".
Need to wait for testing until next week.


--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux