[PATCH 15/15] KVM: ARM: Guest wait-for-interrupts (WFI) support

[Will Deacon]

On Sat, Sep 15, 2012 at 04:36:05PM +0100, Christoffer Dall wrote:
> From: Christoffer Dall <cdall at cs.columbia.edu>
> 
> 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