> j...@8bytes.org; alex.william...@redhat.com; jiang@linux.intel.com;
> eric.au...@linaro.org; linux-ker...@vger.kernel.org;
> iommu@lists.linux-foundation.org; k...@vger.kernel.org
> Subject: Re: [v3 23/26] KVM: Update Posted-Interrupts Descriptor when vCPU
> is preempted
>
On Fri, Dec 12, 2014 at 11:14:57PM +0800, Feng Wu wrote:
> This patch updates the Posted-Interrupts Descriptor when vCPU
> is preempted.
>
> sched out:
> - Set 'SN' to suppress furture non-urgent interrupts posted for
> the vCPU.
What wakes the vcpu in the case of a non-urgent interrupt, then?
I
ernel.org;
> linux-ker...@vger.kernel.org; k...@vger.kernel.org
> Subject: Re: [v3 23/26] KVM: Update Posted-Interrupts Descriptor when vCPU
> is preempted
>
>
>
> On 18/12/2014 04:15, Wu, Feng wrote:
> > Thanks for your comments, Paolo!
> >
> > If we use u64
.@infradead.org; j...@8bytes.org; Alex
> Williamson; jiang.liu-VuQAYsv1563Yd54FQh9/c...@public.gmane.org
> Cc: iommu@lists.linux-foundation.org; linux-ker...@vger.kernel.org; KVM list;
> Eric Auger
> Subject: Re: [v3 23/26] KVM: Update Posted-Interrupts Descriptor when vCPU
> is preempt
On 12/12/2014 16:14, Feng Wu wrote:
> + if (irq_remapping_cap(IRQ_POSTING_CAP)) {
> + struct pi_desc *pi_desc = vcpu_to_pi_desc(vcpu);
> + struct pi_desc old, new;
> + unsigned int dest;
> +
> + memset(&old, 0, sizeof(old));
> + mems
This patch updates the Posted-Interrupts Descriptor when vCPU
is preempted.
sched out:
- Set 'SN' to suppress furture non-urgent interrupts posted for
the vCPU.
sched in:
- Clear 'SN'
- Change NDST if vCPU is scheduled to a different CPU
- Set 'NV' to POSTED_INTR_VECTOR
Signed-off-by: Feng Wu
-
