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Related to issue #67: Information about the availability of SGX

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Initial commit adding support for detection of SGX. Not tested yet.
Increment version number due to binary incompatibility of the
sizes of cpu_raw_data_t and cpu_id_t.
This commit is contained in:
Veselin Georgiev 2016-09-30 22:03:57 +03:00
commit 4cf8cfa862
16 changed files with 340 additions and 20 deletions
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24
cpuid_tool/cpuid_tool.c
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@ -90,6 +90,7 @@ typedef enum {
NEED_CLOCK_IC,
NEED_RDMSR,
NEED_SSE_UNIT_SIZE,
NEED_SGX,
} output_data_switch;
int need_input = 0,
@ -100,7 +101,8 @@ int need_input = 0,
need_timed_clockreport = 0,
verbose_level = 0,
need_version = 0,
need_cpulist = 0;
need_cpulist = 0,
need_sgx = 0;
#define MAX_REQUESTS 32
int num_requests = 0;
@ -145,6 +147,7 @@ matchtable[] = {
{ NEED_CLOCK_IC , "--clock-ic" , 1},
{ NEED_RDMSR , "--rdmsr" , 0},
{ NEED_SSE_UNIT_SIZE, "--sse-size" , 1},
{ NEED_SGX , "--sgx" , 1},
};
const int sz_match = (sizeof(matchtable) / sizeof(matchtable[0]));
@ -458,6 +461,25 @@ static void print_info(output_data_switch query, struct cpu_raw_data_t* raw,
data->detection_hints[CPU_HINT_SSE_SIZE_AUTH] ? "authoritative" : "non-authoritative");
break;
}
case NEED_SGX:
{
fprintf(fout, "SGX: %d (%s)\n", data->sgx.present, data->sgx.present ? "present" : "absent");
if (data->sgx.present) {
fprintf(fout, "SGX max enclave size (32-bit): 2^%d\n", data->sgx.max_enclave_32bit);
fprintf(fout, "SGX max enclave size (64-bit): 2^%d\n", data->sgx.max_enclave_64bit);
fprintf(fout, "SGX1 extensions : %d (%s)\n", data->sgx.flags[INTEL_SGX1], data->sgx.flags[INTEL_SGX1] ? "present" : "absent");
fprintf(fout, "SGX2 extensions : %d (%s)\n", data->sgx.flags[INTEL_SGX2], data->sgx.flags[INTEL_SGX2] ? "present" : "absent");
fprintf(fout, "SGX MISCSELECT : %08x\n", data->sgx.misc_select);
fprintf(fout, "SGX SECS.ATTRIBUTES mask : %016llx\n", data->sgx.secs_attributes);
fprintf(fout, "SGX SECS.XSAVE feature mask : %016llx\n", data->sgx.secs_xfrm);
fprintf(fout, "SGX EPC sections count : %d\n", data->sgx.num_epc_sections);
for (i = 0; i < data->sgx.num_epc_sections; i++) {
struct cpu_epc_t epc = cpuid_get_epc(i, raw);
fprintf(fout, "SGX EPC section #%-8d: start = %llx, size = %llu\n", epc.start_addr, epc.length);
}
}
break;
}
default:
fprintf(fout, "How did you get here?!?\n");
break;