Hello, Here is a short serie adding support for the MMIO based Interrupt Presentation Controllers (ICP) as found on a POWER8 system.
The initial patches are mostly cleanups and small extensions to the XICS framework. They provide a basic container XICS object that the PowerNV machine can use to hold the ICSs and ICPs of the system. Last is the PSI HB model which handles the external interrupt. The next step should be IPMI support which adds a BT device on the ISA bus and some device tree extensions to read sensors and FRUs. This is relatively straight forward and most of the IPMI code has been discussed already on the list. Then should come a PHB3 model to include some PCI devices. This is big and it needs a few helpers in the PCI core. If you feel adventurous, you can grab kernel and rootfs images : https://openpower.xyz/job/openpower-op-build/distro=ubuntu,target=palmetto/lastSuccessfulBuild/artifact/images/zImage.epapr https://openpower.xyz/job/openpower-op-build/distro=ubuntu,target=palmetto/lastSuccessfulBuild/artifact/images/rootfs.cpio.xz and give it a try. The full patchset is available here : https://github.com/legoater/qemu/commits/powernv-ipmi-2.8 This is a wip branch. Thanks, C. Benjamin Herrenschmidt (3): ppc/pnv: Add cut down PSI bridge model and hookup external interrupt ppc/pnv: Add OCC model stub with interrupt support ppc/pnv: Add Naples chip support for LPC interrupts Cédric Le Goater (7): ppc/xics: introduce a helper to insert a new ics ppc/xics: add a xics_get_cpu_index_by_pir helper ppc/xics: add a 'realize' handler to the xics_common class ppc/xics: add a 'set_nr_servers' handler to the xics_common class ppc/pnv: add a XICS object to the PowerNV machine ppc/pnv: add MMIO regions for ICPs ppc/pnv: link the CPUs to the machine XICS hw/intc/xics.c | 61 +++++ hw/intc/xics_kvm.c | 30 +-- hw/intc/xics_spapr.c | 41 +--- hw/ppc/Makefile.objs | 2 +- hw/ppc/pnv.c | 139 ++++++++++- hw/ppc/pnv_core.c | 152 +++++++++++- hw/ppc/pnv_lpc.c | 47 +++- hw/ppc/pnv_occ.c | 136 +++++++++++ hw/ppc/pnv_psi.c | 574 +++++++++++++++++++++++++++++++++++++++++++++ hw/ppc/ppc.c | 16 ++ include/hw/ppc/pnv.h | 32 +++ include/hw/ppc/pnv_core.h | 2 + include/hw/ppc/pnv_lpc.h | 9 + include/hw/ppc/pnv_occ.h | 38 +++ include/hw/ppc/pnv_psi.h | 61 +++++ include/hw/ppc/pnv_xscom.h | 6 + include/hw/ppc/xics.h | 8 + target-ppc/cpu.h | 10 + 18 files changed, 1283 insertions(+), 81 deletions(-) create mode 100644 hw/ppc/pnv_occ.c create mode 100644 hw/ppc/pnv_psi.c create mode 100644 include/hw/ppc/pnv_occ.h create mode 100644 include/hw/ppc/pnv_psi.h -- 2.7.4
