xref: /openbmc/google-ipmi-sys/cpu_config.cpp (revision 4134c74bda1bef375e155e193bad98741912c252)
1*4134c74bSVikram Gara // Copyright 2026 Google LLC
2*4134c74bSVikram Gara //
3*4134c74bSVikram Gara // Licensed under the Apache License, Version 2.0 (the "License");
4*4134c74bSVikram Gara // you may not use this file except in compliance with the License.
5*4134c74bSVikram Gara // You may obtain a copy of the License at
6*4134c74bSVikram Gara //
7*4134c74bSVikram Gara //      http://www.apache.org/licenses/LICENSE-2.0
8*4134c74bSVikram Gara //
9*4134c74bSVikram Gara // Unless required by applicable law or agreed to in writing, software
10*4134c74bSVikram Gara // distributed under the License is distributed on an "AS IS" BASIS,
11*4134c74bSVikram Gara // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12*4134c74bSVikram Gara // See the License for the specific language governing permissions and
13*4134c74bSVikram Gara // limitations under the License.
14*4134c74bSVikram Gara 
15*4134c74bSVikram Gara #include "config.h"
16*4134c74bSVikram Gara 
17*4134c74bSVikram Gara #include "cpu_config.hpp"
18*4134c74bSVikram Gara 
19*4134c74bSVikram Gara #include "commands.hpp"
20*4134c74bSVikram Gara #include "handler.hpp"
21*4134c74bSVikram Gara 
22*4134c74bSVikram Gara #include <ipmid/api-types.hpp>
23*4134c74bSVikram Gara #include <ipmid/api.hpp>
24*4134c74bSVikram Gara #include <stdplus/print.hpp>
25*4134c74bSVikram Gara 
26*4134c74bSVikram Gara #include <cstdint>
27*4134c74bSVikram Gara #include <optional>
28*4134c74bSVikram Gara #include <vector>
29*4134c74bSVikram Gara 
30*4134c74bSVikram Gara namespace google
31*4134c74bSVikram Gara {
32*4134c74bSVikram Gara namespace ipmi
33*4134c74bSVikram Gara {
34*4134c74bSVikram Gara 
35*4134c74bSVikram Gara Resp getCoreCount(std::span<const uint8_t>, HandlerInterface* handler)
36*4134c74bSVikram Gara {
37*4134c74bSVikram Gara     // data is not used in this function but is kept for consistency with other
38*4134c74bSVikram Gara     // handlers.
39*4134c74bSVikram Gara     std::optional<uint16_t> coreCountOpt =
40*4134c74bSVikram Gara         handler->getCoreCount(CPU_CONFIG_PATH);
41*4134c74bSVikram Gara     if (!coreCountOpt.has_value())
42*4134c74bSVikram Gara     {
43*4134c74bSVikram Gara         return ::ipmi::responseUnspecifiedError();
44*4134c74bSVikram Gara     }
45*4134c74bSVikram Gara 
46*4134c74bSVikram Gara     uint16_t coreCount = coreCountOpt.value();
47*4134c74bSVikram Gara     std::vector<uint8_t> reply;
48*4134c74bSVikram Gara     reply.push_back(static_cast<uint8_t>(coreCount & 0xFF));        // LSB
49*4134c74bSVikram Gara     reply.push_back(static_cast<uint8_t>((coreCount >> 8) & 0xFF)); // MSB
50*4134c74bSVikram Gara     return ::ipmi::responseSuccess(SysOEMCommands::SysGetCoreCount, reply);
51*4134c74bSVikram Gara }
52*4134c74bSVikram Gara 
53*4134c74bSVikram Gara } // namespace ipmi
54*4134c74bSVikram Gara } // namespace google
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