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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
use console::{Emoji, Style};
use raw_cpuid::{CpuId, SgxSectionInfo};
use std::fmt;
pub struct SgxCpuInfo(CpuId);
impl SgxCpuInfo {
pub fn new() -> Self {
Self { 0: CpuId::new() }
}
}
impl Default for SgxCpuInfo {
fn default() -> Self {
SgxCpuInfo::new()
}
}
impl From<SgxCpuInfo> for CpuId {
fn from(sgx_cpu_info: SgxCpuInfo) -> CpuId {
sgx_cpu_info.0
}
}
impl fmt::Display for SgxCpuInfo {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
writeln!(f, "# CPU features")?;
let feature_info = self
.0
.get_feature_info()
.expect("Cannot get feature information");
writeln!(f, "stepping {}", feature_info.stepping_id())?;
writeln!(
f,
"model {} (extended {})",
feature_info.model_id(),
feature_info.extended_model_id()
)?;
writeln!(
f,
"family {} (extended {})",
feature_info.family_id(),
feature_info.extended_family_id()
)?;
writeln!(
f,
"{} SMX support",
Emoji(&emoji(feature_info.has_smx()), "")
)?;
writeln!(f, "\n# Intel SGX capabilities")?;
let extended_features = self
.0
.get_extended_feature_info()
.expect("Cannot get extended features information");
writeln!(
f,
"{} SGX availability",
Emoji(&emoji(extended_features.has_sgx()), "")
)?;
writeln!(
f,
"{} SGX FLC (Flexible Launch Control)",
Emoji(&emoji(extended_features.has_sgx_lc()), "")
)?;
let sgx_info = self.0.get_sgx_info().expect("Cannot get SGX information");
writeln!(
f,
"{} SGX 1 support",
Emoji(&emoji(sgx_info.has_sgx1()), "")
)?;
write!(
f,
"{} SGX 2 support",
Emoji(&emoji(sgx_info.has_sgx2()), "")
)?;
if !extended_features.has_sgx_lc() {
let yellow = Style::new().yellow();
writeln!(
f,
"\n\n{} {}",
Emoji("⚠️", ""),
yellow.apply_to("Warning !")
)?;
writeln!(
f,
"This CPU does not have FLC feature, so it does not support DCAP."
)?;
writeln!(
f,
"This CPU will not be able to run SGX using in-kernel SGX driver from Linux (starting from kernel 5.11)."
)?;
write!(f, "You must use the regular SGX driver")?;
}
Ok(())
}
}
fn emoji(b: bool) -> String {
if b {
"✅".to_owned()
} else {
"❌".to_owned()
}
}
impl fmt::Debug for SgxCpuInfo {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
writeln!(f, "# CPU features")?;
let feature_info = self
.0
.get_feature_info()
.expect("Cannot get feature information");
writeln!(f, "{:#02x?}", feature_info)?;
writeln!(f, "stepping {}", feature_info.stepping_id())?;
writeln!(f, "model {}", feature_info.model_id())?;
writeln!(f, "extended model {}", feature_info.extended_model_id())?;
writeln!(f, "family {}", feature_info.family_id())?;
writeln!(f, "extended family {}", feature_info.extended_family_id())?;
writeln!(f, "SMX support {}", feature_info.has_smx())?;
writeln!(f, "\n# Extended feature bits")?;
let extended_features = self
.0
.get_extended_feature_info()
.expect("Cannot get extended features information");
writeln!(f, "{:#02x?}", extended_features)?;
writeln!(f, "SGX available: {}", extended_features.has_sgx())?;
writeln!(
f,
"SGX FLC (Flexible Launch Control): {}",
extended_features.has_sgx_lc()
)?;
writeln!(f, "\n# Intel SGX capabilities")?;
writeln!(f, "\n## Sub-leaf 0 (ECX=0)")?;
let sgx_info = self.0.get_sgx_info().expect("Cannot get SGX information");
writeln!(f, "{:#02x?}", sgx_info)?;
writeln!(f, "SGX 1 supported: {}", sgx_info.has_sgx1())?;
writeln!(f, "SGX 2 supported: {}", sgx_info.has_sgx2())?;
writeln!(
f,
"MaxEnclaveSize_Not64: {:#02x}",
sgx_info.max_enclave_size_non_64bit()
)?;
writeln!(
f,
"MaxEnclaveSize_64: {:#02x}",
sgx_info.max_enclave_size_64bit()
)?;
writeln!(f, "\n## Sub-leaf 1 (ECX=1)")?;
let (eax, ecx) = sgx_info.secs_attributes();
write!(f, "eax: {:#02x?}, ebx: 0, ecx: {:#02x?}, edx: 0", eax, ecx)?;
for (idx, SgxSectionInfo::Epc(epc_section)) in sgx_info.iter().enumerate() {
writeln!(f, "\nSub-leaf {} (ECX={})", idx + 2, idx + 2)?;
writeln!(
f,
"EPC (Enclave Page Cache) section:\n{:#02x?}",
epc_section
)?;
writeln!(
f,
"physical base address: {:#02x?}",
epc_section.physical_base()
)?;
write!(
f,
"size of EPC section in Processor Reserved Memory: {} MB",
epc_section.size() / 1_048_576
)?;
}
Ok(())
}
}