Add support to retrieve mpidr value via qom-get. Signed-off-by: Mauro Carvalho Chehab <mchehab+hua...@kernel.org> --- scripts/arm_processor_error.py | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-)
diff --git a/scripts/arm_processor_error.py b/scripts/arm_processor_error.py index 2643e4ddc5f3..f869f07860b8 100644 --- a/scripts/arm_processor_error.py +++ b/scripts/arm_processor_error.py @@ -5,12 +5,10 @@ # # Copyright (C) 2024 Mauro Carvalho Chehab <mchehab+hua...@kernel.org> -# TODO: current implementation has dummy defaults. -# -# For a better implementation, a QMP addition/call is needed to -# retrieve some data for ARM Processor Error injection: -# -# - ARM registers: power_state, mpidr. +# Note: currently it lacks a method to fill the ARM Processor Error CPER +# psci field from emulation. On a real hardware, this is filled only +# when a CPU is not running. Implementing support for it to simulate a +# real hardware is not trivial. import argparse import re @@ -168,11 +166,24 @@ def send_cper(self, args): else: cper["running-state"] = 0 + if args.mpidr: + cper["mpidr-el1"] = arg["mpidr"] + elif cpus: + cmd_arg = { + 'path': cpus[0], + 'property': "x-mpidr" + } + ret = qmp_cmd.send_cmd("qom-get", cmd_arg, may_open=True) + if isinstance(ret, int): + cper["mpidr-el1"] = ret + else: + cper["mpidr-el1"] = 0 + if arm_valid_init: if args.affinity: cper["valid"] |= self.arm_valid_bits["affinity"] - if args.mpidr: + if "mpidr-el1" in cper: cper["valid"] |= self.arm_valid_bits["mpidr"] if "running-state" in cper: @@ -356,7 +367,7 @@ def send_cper(self, args): if isinstance(ret, int): arg["midr-el1"] = ret - util.data_add(data, arg.get("mpidr-el1", 0), 8) + util.data_add(data, cper["mpidr-el1"], 8) util.data_add(data, arg.get("midr-el1", 0), 8) util.data_add(data, cper["running-state"], 4) util.data_add(data, arg.get("psci-state", 0), 4) -- 2.46.0