On 2011-10-18 17:56, Michael S. Tsirkin wrote: >> What would probably help us long-term out of your concerns regarding >> lazy routing is to bypass that redundant GSI translation for dynamic >> messages, i.e. those that are not associated with an irqfd number or an >> assigned device irq. Something like a KVM_DELIVER_MSI IOCTL that accepts >> address and data directly. >> >> Jan > > You are trying to work around the problem by not requiring > any resources per MSI vector. This just might work for some > uses (ioctl) but isn't a generic solution (e.g. won't work for irqfd).
irqfd is not affected anymore in that model as it cannot participate in lazy routing anyway. Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux
