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 #include <libpdbg.h>
20 
21 #include <phosphor-logging/elog-errors.hpp>
22 #include <phosphor-logging/elog.hpp>
23 #include <xyz/openbmc_project/Common/error.hpp>
24 
25 namespace openpower
26 {
27 namespace proc
28 {
29 
30 NMI::NMI(sdbusplus::bus::bus& bus, const char* path) :
31     Interface(bus, path), bus(bus), objectPath(path)
32 {}
33 
34 void NMI::nMI()
35 {
36     using namespace phosphor::logging;
37     using InternalFailure =
38         sdbusplus::xyz::openbmc_project::Common::Error::InternalFailure;
39 
40     struct pdbg_target* target;
41 
42     pdbg_for_each_class_target("thread", target)
43     {
44         if (pdbg_target_probe(target) != PDBG_TARGET_ENABLED)
45             continue;
46 
47         if (thread_stop(target) < 0 || !thread_status(target).quiesced)
48         {
49             log<level::ERR>("Failed to stop all threads");
50             report<InternalFailure>();
51             return;
52         }
53     }
54 
55     if (thread_sreset_all() < 0)
56     {
57         log<level::ERR>("Failed to sreset all threads");
58         report<InternalFailure>();
59     }
60 }
61 } // namespace proc
62 } // namespace openpower
63