This patch set is follow-up to our BMC side IPMI code that was sent our 18 months ago. It addresses Corey's comments.
Baseboard Management Controllers (BMCs) are special processors that monitors state of a computer, often used in data center servers. They often communicate via IPMI. As a result, it is important to emulate the IPMI interface so that they can connect to host machines. This patch set aims to refactor the existing hw/ipmi and make it handles both Core side and BMC side emulations. We also added the implementation of the KCS module for NPCM7XX BMC boards that work as a backend. We have tested this patch on various NPCM7xx based systems and they can communicate with a host that runs pmi-bmc-extern The structure is as follows: Patch 1-3 contains some documentation written by Havard Skinnomoen that how the emulation of existing host-side IPMI and the new BMC-side IPMI works. Patch 4-5 refactors the current IPMI code so that they work for both host-side and BMC-side. Patch 6 adds a new ipmi-host-extern which represents BMC-side emulation that is similar to the current ipmi-bmc-extern. Patch 7 implements the KCS device in NPCM7XX boards. It works as a backend to the ipmi-host-extern device. Since the direction is different we can't directly use ipmi-kcs.c for BMC emulation. -- Changes since v1 -- 1. Use the terms Corey suggested in patch v7 throughout the patch set. 2. Squash the original patch 6 into patch 4 so that the structure is clearer. 3. Addressed other comments from Corey in the original patch set. Hao Wu (4): hw/ipmi: Refactor IPMI interface hw/ipmi: Take out common from ipmi_bmc_extern.c hw/ipmi: Add an IPMI external host device hw/ipmi: Add a KCS Module for NPCM7XX Havard Skinnemoen (3): docs: enable sphinx blockdiag extension docs/specs: IPMI device emulation: main processor docs/specs: IPMI device emulation: BMC configs/devices/arm-softmmu/default.mak | 2 + docs/conf.py | 6 +- docs/specs/index.rst | 1 + docs/specs/ipmi.rst | 170 +++++++ docs/system/arm/nuvoton.rst | 1 - hw/acpi/ipmi.c | 4 +- hw/arm/npcm7xx.c | 10 +- hw/ipmi/Kconfig | 4 + hw/ipmi/ipmi.c | 60 ++- hw/ipmi/ipmi_bmc_extern.c | 439 ++---------------- hw/ipmi/ipmi_bmc_sim.c | 78 ++-- hw/ipmi/ipmi_bt.c | 33 +- hw/ipmi/ipmi_extern.c | 432 +++++++++++++++++ hw/ipmi/ipmi_extern.h | 90 ++++ hw/ipmi/ipmi_host_extern.c | 170 +++++++ hw/ipmi/ipmi_kcs.c | 31 +- hw/ipmi/isa_ipmi_bt.c | 18 +- hw/ipmi/isa_ipmi_kcs.c | 13 +- hw/ipmi/meson.build | 4 +- hw/ipmi/npcm7xx_kcs.c | 590 ++++++++++++++++++++++++ hw/ipmi/pci_ipmi_bt.c | 8 +- hw/ipmi/pci_ipmi_kcs.c | 8 +- hw/ipmi/smbus_ipmi.c | 26 +- hw/ipmi/trace-events | 8 + hw/ipmi/trace.h | 1 + hw/ppc/pnv.c | 4 +- hw/ppc/pnv_bmc.c | 22 +- hw/smbios/smbios_type_38.c | 11 +- include/hw/arm/npcm7xx.h | 2 + include/hw/ipmi/ipmi.h | 139 ++++-- include/hw/ipmi/ipmi_bt.h | 2 +- include/hw/ipmi/ipmi_kcs.h | 2 +- include/hw/ipmi/npcm7xx_kcs.h | 103 +++++ include/hw/ppc/pnv.h | 12 +- meson.build | 1 + 35 files changed, 1939 insertions(+), 566 deletions(-) create mode 100644 docs/specs/ipmi.rst create mode 100644 hw/ipmi/ipmi_extern.c create mode 100644 hw/ipmi/ipmi_extern.h create mode 100644 hw/ipmi/ipmi_host_extern.c create mode 100644 hw/ipmi/npcm7xx_kcs.c create mode 100644 hw/ipmi/trace-events create mode 100644 hw/ipmi/trace.h create mode 100644 include/hw/ipmi/npcm7xx_kcs.h -- 2.40.0.348.gf938b09366-goog
