How to test riscv guest interrupt

[xiebo-hao123]

Does RISC-V support guest interrupt pass-through, and how can MSI interrupts be directly sent to a guest?

[avpatel]

At the moment, KVM RISC-V doesn't support MSI pass-through but it is work-in-progress.

@jones-drew has a working implementation but his patches depend upon RISC-V IOMMU driver which is not yet upstreamed.