The powernv8/powernv9/powernv10 machines allocate a LSI for their root port bridge, which is not the case on real hardware. The default root port implementation in qemu requests a LSI. Since the powernv implementation derives from it, that's where the LSI is coming from. This series fixes it, so that the model matches the hardware.
However, the code in hw/pci to handle AER and hotplug events assume a LSI is defined. It tends to assert/deassert a LSI if MSI or MSIX is not enabled. Since we have hardware where that is not true, this patch also fixes a few code paths to check if a LSI is configured before trying to trigger it. Changes from v1: - addressed comments from Daniel Frederic Barrat (2): pcie: Don't try triggering a LSI when not defined ppc/pnv: Remove LSI on the PCIE host bridge hw/pci-host/pnv_phb3.c | 1 + hw/pci-host/pnv_phb4.c | 1 + hw/pci/pcie.c | 5 +++-- hw/pci/pcie_aer.c | 2 +- 4 files changed, 6 insertions(+), 3 deletions(-) -- 2.35.1
