Some half a year ago when I posted my first attempt to refactor MSI for KVM support, we came to the conclusion that it might suffice to do transparent dynamic routing for user-space injected MSI messages. These two patches now implement such an approach for upstream. As QEMU does not yet include irqfd support (for vhost) or pci device assignment, this is already enough to enable MSI over the in-kernel irqchip. Still, this is only RFC as it is just lightly tested and should primarily collect feedback regarding the direction. If it's fine, I'd like to base further qemu-kvm refactorings and upstream preparations on top of such a series. Also, I'd like to reanimate my KVM patch to provide direct MSI injection in future kernels so that we do not need to take this long path here forever. Jan Kiszka (2): kvm: Introduce basic MSI support in-kernel irqchips KVM: x86: Wire up MSI support for in-kernel irqchip hw/apic.c | 3 + hw/kvm/apic.c | 33 ++++++++++- hw/pc.c | 5 -- kvm-all.c | 171 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++- kvm.h | 1 + 5 files changed, 205 insertions(+), 8 deletions(-) -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
