On 6/13/2025 12:36 PM, Bjorn Helgaas wrote: > 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".) > Good suggestion, thanks. >> Rename hv_arch_irq_unmask() to hv_irq_retarget_interrupt().