blob: 047fcb041ce14ed04b0a1dbdca1dbcdcc86dc542 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/secureboot/smf/smf_utils.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2018 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
#include <secureboot/smf_utils.H>
#include <targeting/common/target.H>
#include <targeting/common/targetservice.H>
#include <targeting/common/util.H>
#include <secureboot/secure_reasoncodes.H>
#include <assert.h>
#include <limits.h>
namespace SECUREBOOT
{
namespace SMF
{
const uint64_t MIN_SMF_MEMORY_AMT = 256 * MEGABYTE;
const uint64_t MIN_MEM_RESERVED_FOR_HB = 8 * GIGABYTE;
bool isSmfEnabled()
{
uint8_t l_smfEnabled = true;
TARGETING::Target* l_sys = nullptr;
TARGETING::targetService().getTopLevelTarget(l_sys);
crit_assert(l_sys != nullptr);
l_smfEnabled = l_sys->getAttr<TARGETING::ATTR_SMF_ENABLED>();
return l_smfEnabled;
}
errlHndl_t checkRiskLevelForSmf()
{
errlHndl_t l_errl = nullptr;
do {
TARGETING::Target* l_sys = nullptr;
TARGETING::targetService().getTopLevelTarget(l_sys);
crit_assert(l_sys);
auto l_riskLevel = l_sys->getAttr<TARGETING::ATTR_RISK_LEVEL>();
TARGETING::Target* l_pMasterProc = nullptr;
l_errl = TARGETING::targetService()
.queryMasterProcChipTargetHandle(l_pMasterProc);
if(l_errl)
{
break;
}
auto l_masterProcModel = l_pMasterProc->getAttr<TARGETING::ATTR_MODEL>();
// SMF is enabled by default on Axone, so need to check the risk level
// only on P9C/P9N.
// WARNING: If more risk levels are added in the future that don't
// support SMF, the below check needs to be altered accordingly.
if(l_riskLevel <TARGETING::UTIL::P9N23_P9C13_NATIVE_SMF_RUGBY_FAVOR_SECURITY
&& (
(l_masterProcModel == TARGETING::MODEL_CUMULUS) ||
(l_masterProcModel == TARGETING::MODEL_NIMBUS)
)
)
{
/*@
* @errortype
* @reasoncode SECUREBOOT::RC_RISK_LEVEL_TOO_LOW
* @severity ERRORLOG::ERRL_SEV_UNRECOVERABLE
* @moduleid SECUREBOOT::MOD_CHECK_RISK_LEVEL_FOR_SMF
* @userdata1 Current risk level of the system
* @userdata2 Minimum risk level required
* @devdesc SMF is enabled on the system of incorrect risk level
* @custdesc A problem occurred during the IPL of the system.
*/
l_errl = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
SECUREBOOT::MOD_CHECK_RISK_LEVEL_FOR_SMF,
SECUREBOOT::RC_RISK_LEVEL_TOO_LOW,
l_riskLevel,
TARGETING::UTIL::P9N23_P9C13_NATIVE_SMF_RUGBY_FAVOR_SECURITY,
ERRORLOG::ErrlEntry::ADD_SW_CALLOUT);
break;
}
} while(0);
return l_errl;
}
} // namespace SMF
} // namespace SECUREBOOT
|
