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 more cleanups of the XICS layer which move the IRQ 'server' number mapping under the machine handlers. The PowerNV machine is then extended with the Interrupt Source Control (ICS), the Interrupt Control Presenter (ICP) objects and the Interrupt Management area. 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. Changes since v1: - introduced PnvICPState to hold the ICP memory region - handled pir-to-cpu_index mapping under the machine icp_get handler - added multichip support - removed ics_eoi handler (came from a bug in PHB3_MSI) - kept PSI and OCC model for later, when this part is done. Cédric Le Goater (8): ppc/xics: introduce an ICPState backlink under PowerPCCPU spapr: move the IRQ server number mapping under the machine ppc/xics: add a realize() handler to ICPStateClass ppc/pnv: add a PnvICPState object ppc/pnv: create the ICP and ICS objects under the machine ppc/pnv: add a helper to calculate MMIO addresses registers ppc/pnv: link the CPUs to the machine XICSFabric ppc/pnv: add memory regions for the ICP registers hw/intc/Makefile.objs | 1 + hw/intc/xics.c | 9 ++- hw/intc/xics_pnv.c | 180 ++++++++++++++++++++++++++++++++++++++++++++++ hw/intc/xics_spapr.c | 25 ++----- hw/ppc/pnv.c | 185 ++++++++++++++++++++++++++++++++++++++++++++++++ hw/ppc/pnv_core.c | 20 ++++-- hw/ppc/spapr.c | 3 +- hw/ppc/spapr_cpu_core.c | 4 +- include/hw/ppc/pnv.h | 35 ++++++++- include/hw/ppc/xics.h | 14 ++++ target/ppc/cpu.h | 2 + 11 files changed, 451 insertions(+), 27 deletions(-) create mode 100644 hw/intc/xics_pnv.c -- 2.7.4
