Messages in this thread | | | Date | Mon, 23 Feb 2015 19:04:57 -0300 | From | Marcelo Tosatti <> | Subject | Re: [v3 21/26] x86, irq: Define a global vector for VT-d Posted-Interrupts |
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On Fri, Dec 12, 2014 at 11:14:55PM +0800, Feng Wu wrote: > Currently, we use a global vector as the Posted-Interrupts > Notification Event for all the vCPUs in the system. We need > to introduce another global vector for VT-d Posted-Interrtups, > which will be used to wakeup the sleep vCPU when an external > interrupt from a direct-assigned device happens for that vCPU. > > Signed-off-by: Feng Wu <feng.wu@intel.com>
Why an additional vector is necessary?
Can't you simply wakeup the vcpu from kvm_posted_intr_ipi, the posted interrupt vector handler ?
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