1 /**
2 * Copyright (C) 2019 IBM Corporation
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "nmi_interface.hpp"
18
19 extern "C"
20 {
21 #include <libpdbg.h>
22 #include <libpdbg_sbe.h>
23 }
24
25 #include <phosphor-logging/elog-errors.hpp>
26 #include <phosphor-logging/elog.hpp>
27 #include <xyz/openbmc_project/Common/error.hpp>
28
29 namespace openpower
30 {
31 namespace proc
32 {
33
NMI(sdbusplus::bus_t & bus,const char * path)34 NMI::NMI(sdbusplus::bus_t& bus, const char* path) :
35 Interface(bus, path), bus(bus), objectPath(path)
36 {}
37
nmi()38 void NMI::nmi()
39 {
40 using namespace phosphor::logging;
41 using InternalFailure =
42 sdbusplus::xyz::openbmc_project::Common::Error::InternalFailure;
43
44 struct pdbg_target* target;
45
46 pdbg_for_each_class_target("thread", target)
47 {
48 if (pdbg_target_probe(target) != PDBG_TARGET_ENABLED)
49 continue;
50
51 if (thread_stop(target) < 0 || !thread_status(target).quiesced)
52 {
53 log<level::ERR>("Failed to stop all threads");
54 report<InternalFailure>();
55 return;
56 }
57 }
58
59 if (thread_sreset_all() < 0)
60 {
61 log<level::ERR>("Failed to sreset all threads");
62 report<InternalFailure>();
63 }
64 }
65 } // namespace proc
66 } // namespace openpower
67