Hello, Here is the latest version of the ppc/pnv platform patchset. PowerNV (as Non-Virtualized) is the "baremetal" platform using the OPAL firmware. It runs Linux on IBM and Open Power systems and it can be used as an hypervisor OS, to run KVM guests, or simply as a host OS. The goal here is to add support for the baremetal platform and possibly later also for the KVM PR guests but not for HV guests.
In v5, all the comments from v4 should have been addressed. Most of the differences are cleanups suggested by David but there a couple of important changes : - an addition of a new firmware to qemu : skiboot 5.3.7. - a rework of the native Interrupt Presentation Controller model which now uses memory subregions instead of a hash table. - a removal of the Power9 LPC Controller. This is still in the plans but the models need a little more work. The initial patches provide a minimal platform with some RAM to load the ROMs : firmware, kernel and initrd. The device tree is built with what is available at reset time. Then, comes the PnvChip object acting as a container for other devices required to run a system. The cores are added to each chip with some restrictions on the number and the ids. Next is the XSCOM model, the sideband bus which gives controls to all the units in the POWER8 chip, the LPC controller for the console, the native interrupt controller and the PSI HB model to handle 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, which I stabilize when the qemu version, on which it is based, is released. Thanks, C. Benjamin Herrenschmidt (5): ppc/pnv: add skeleton PowerNV platform ppc/pnv: add a LPC controller 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 (12): ppc: add skiboot firmware for the pnv platform ppc/pnv: add a PnvChip object ppc/pnv: add a core mask to PnvChip ppc/pnv: add a PIR handler to PnvChip ppc/pnv: add a PnvCore object ppc/pnv: add XSCOM infrastructure ppc/pnv: add XSCOM handlers to PnvCore ppc/pnv: add a ISA bus ppc/xics: Add "native" XICS subclass ppc/pnv: add a XICS native to each PowerNV chip ppc/xics: add a xics_get_cpu_index_by_pir helper ppc/xics: introduce a helper to insert a new ics .gitmodules | 3 + MAINTAINERS | 1 + Makefile | 2 +- default-configs/ppc64-softmmu.mak | 4 +- hw/intc/Makefile.objs | 1 + hw/intc/xics.c | 6 + hw/intc/xics_native.c | 323 ++++++++++++++ hw/ppc/Makefile.objs | 2 + hw/ppc/pnv.c | 888 ++++++++++++++++++++++++++++++++++++++ hw/ppc/pnv_core.c | 248 +++++++++++ hw/ppc/pnv_lpc.c | 514 ++++++++++++++++++++++ hw/ppc/pnv_occ.c | 135 ++++++ hw/ppc/pnv_psi.c | 615 ++++++++++++++++++++++++++ hw/ppc/pnv_xscom.c | 277 ++++++++++++ include/hw/ppc/pnv.h | 159 +++++++ include/hw/ppc/pnv_core.h | 50 +++ include/hw/ppc/pnv_lpc.h | 76 ++++ include/hw/ppc/pnv_occ.h | 38 ++ include/hw/ppc/pnv_psi.h | 64 +++ include/hw/ppc/pnv_xscom.h | 84 ++++ include/hw/ppc/xics.h | 26 ++ pc-bios/README | 5 + pc-bios/skiboot.lid | Bin 0 -> 983893 bytes roms/Makefile | 8 +- roms/skiboot | 1 + 25 files changed, 3527 insertions(+), 3 deletions(-) create mode 100644 hw/intc/xics_native.c create mode 100644 hw/ppc/pnv.c create mode 100644 hw/ppc/pnv_core.c create mode 100644 hw/ppc/pnv_lpc.c create mode 100644 hw/ppc/pnv_occ.c create mode 100644 hw/ppc/pnv_psi.c create mode 100644 hw/ppc/pnv_xscom.c create mode 100644 include/hw/ppc/pnv.h create mode 100644 include/hw/ppc/pnv_core.h create mode 100644 include/hw/ppc/pnv_lpc.h create mode 100644 include/hw/ppc/pnv_occ.h create mode 100644 include/hw/ppc/pnv_psi.h create mode 100644 include/hw/ppc/pnv_xscom.h create mode 100644 pc-bios/skiboot.lid create mode 160000 roms/skiboot -- 2.7.4
