Hello, Here is a series adding support for the interrupt controller as found on a POWER8 system. POWER9 uses a different interrupt controller called XIVE, still to be worked on.
The initial patches are small extensions to the recently added XICSFabric framework. The PowerNV machine is then extended to hold the Interrupt Source Control (ICS) and the Interrupt Control Presenter objects of the system. After that, we use a memory region to model the Interrupt Management area which contains the ICPs registers of a POWER8 PowerNV system. Last is a PSI (Processor Service Interface) bridge model to handle the external interrupt, a minimal model for the OCC (on-chip Controller) and support for the LPC controller on POWER8+ cpus. To test, grab a kernel and a rootfs image here : 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 The full patchset is available here : https://github.com/legoater/qemu/commits/powernv-ipmi-2.9 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 support for POWER8+ LPC Controller Cédric Le Goater (5): ppc/xics: add a xics_get_cpu_index_by_pir() helper ppc/xics: add an ics_eoi() handler to XICSFabric ppc/pnv: create the ICP and ICS objects under the machine ppc/pnv: add memory regions for the ICP registers ppc/pnv: map the ICP memory regions hw/intc/xics.c | 20 +- hw/ppc/Makefile.objs | 2 +- hw/ppc/pnv.c | 224 ++++++++++++++++- hw/ppc/pnv_core.c | 158 +++++++++++- hw/ppc/pnv_lpc.c | 47 +++- hw/ppc/pnv_occ.c | 136 +++++++++++ hw/ppc/pnv_psi.c | 583 +++++++++++++++++++++++++++++++++++++++++++++ hw/ppc/ppc.c | 16 ++ hw/ppc/spapr.c | 11 + include/hw/ppc/pnv.h | 34 +++ include/hw/ppc/pnv_core.h | 1 + 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 | 7 + target/ppc/cpu.h | 10 + 17 files changed, 1343 insertions(+), 20 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
