On Fri, Jul 11, 2025 at 12:18:49PM -0700, Nuno Das Neves wrote: > Fixes for running as nested root partition on the Microsoft Hypervisor. > > The first patch changes vmbus to make hypercalls to the L0 hypervisor > instead of the L1. This is needed because L0 hypervisor, not the L1, is > the one hosting the Windows root partition with the VMM that provides > vmbus. > > The 2nd and 3rd patches fix interrupt unmasking on nested. In this > scenario, the L1 (nested) hypervisor does the interrupt mapping to root > partition cores. The vectors just need to be mapped with > MAP_DEVICE_INTERRUPT instead of affinitized with RETARGET_INTERRUPT. > > Changes in v3: > - Remove 3 patches (#1,#3,#4 from v2) which were merged already (Wei Liu) > - Fix bug in #1 introduced in v2 (Michael Kelley) > - Improve commit message in #2 (Michael Kelley) > - Document return value of hv_map_msi_interrupt() in #2 (Michael Kelley) > > Changes in v2: > - Reword commit messages for clarity (Michael Kelley, Bjorn Helgaas) > - Open-code nested hypercalls to reduce unnecessary code (Michael Kelley) > - Add patch (#3) to fix cpu_online_mask issue (Thomas Gleixner) > - Add patch (#4) to fix error return values (Michael Kelley) > - Remove several redundant error messages and checks (Michael Kelley) > > Nuno Das Neves (1): > Drivers: hv: Use nested hypercall for post message and signal event > > Stanislav Kinsburskii (2): > x86/hyperv: Expose hv_map_msi_interrupt() > PCI: hv: Use the correct hypercall for unmasking interrupts on nested >
Applied. Thanks.
