On Fri, Aug 26, 2022 at 11:12:04PM +0800, Jinhao Fan wrote: > Use KVM's irqfd to send interrupts when possible. This approach is > thread safe. Moreover, it does not have the inter-thread communication > overhead of plain event notifiers since handler callback are called > in the same system call as irqfd write. > > Signed-off-by: Jinhao Fan <fanjinhao...@ict.ac.cn> > Signed-off-by: Klaus Jensen <k.jen...@samsung.com>
No idea what's going on here... This one is causing the following assert failure with --enable-kvm: qemu-system-x86_64: ../accel/kvm/kvm-all.c:1781: kvm_irqchip_commit_routes: Assertion `ret == 0' failed. I find it calls KVM_SET_GSI_ROUTING ioctl with gsi set to KVM_IRQ_ROUTING_MSI, and linux kernel returns EINVAL in that case. It's never set that way without this patch. Am I the only one seeing this?
