On Tue, Jun 10, 2025 at 04:52:06PM -0700, Nuno Das Neves wrote: > From: Stanislav Kinsburskii <skinsburskii@xxxxxxxxxxxxxxxxxxx> > > Running as nested root on MSHV imposes a different requirement > for the pci-hyperv controller. > > In this setup, the interrupt will first come to the L1 (nested) hypervisor, > which will deliver it to the appropriate root CPU. Instead of issuing the > RETARGET hypercall, we should issue the MAP_DEVICE_INTERRUPT > hypercall to L1 to complete the setup. Maybe strengthen this to say that this issues MAP_DEVICE_INTERRUPT instead of RETARGET in this case? (Not just that we "should".) > Rename hv_arch_irq_unmask() to hv_irq_retarget_interrupt().
