On Sat, Sep 15, 2012 at 04:36:05PM +0100, Christoffer Dall wrote: > From: Christoffer Dall <cdall@xxxxxxxxxxxxxxx> > > When the guest executes a WFI instruction the operation is trapped to > KVM, which emulates the instruction in software. There is no correlation > between a guest executing a WFI instruction and actually putting the > hardware into a low-power mode, since a KVM guest is essentially a > process and the WFI instruction can be seen as 'sleep' call from this > process. Therefore, we block the vcpu when the guest excecutes a wfi > instruction and the IRQ or FIQ lines are not raised. > > When an interrupt comes in through KVM_IRQ_LINE (see previous patch) we > signal the VCPU thread and unflag the VCPU to no longer wait for > interrupts. Seems a bit strange tagging this small addition on the end of this series. Can you merge it in with the rest? Will -- 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
