mirror/libcpuid
1
0
Fork 0
mirror of https://github.com/anrieff/libcpuid synced 2024-12-16 16:35:45 +00:00
Code Issues Releases Wiki Activity

cpuid_tool: document the `--sgx' option, and make it special.

Browse source 
Other, non-special options like `--cache' output strictly one line.
--sgx is not like that, because how much data it will print depends
on the machine it is being run.
This commit is contained in:
Veselin Georgiev 2016-10-03 23:44:56 +03:00
parent f10e8c79ee
commit 722a12bad2
1 changed files with 34 additions and 25 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

59
cpuid_tool/cpuid_tool.c
View file

@ -90,7 +90,6 @@ typedef enum {
NEED_CLOCK_IC,
NEED_RDMSR,
NEED_SSE_UNIT_SIZE,
NEED_SGX,
} output_data_switch;
int need_input = 0,
@ -102,7 +101,8 @@ int need_input = 0,
verbose_level = 0,
need_version = 0,
need_cpulist = 0,
need_sgx = 0;
need_sgx = 0,
need_identify = 0;
#define MAX_REQUESTS 32
int num_requests = 0;
@ -147,7 +147,6 @@ 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]));
@ -166,6 +165,7 @@ static void usage(void)
printf(" --clock - in conjunction to --report: print CPU clock as well\n");
printf(" --clock-rdtsc - same as --clock, but use RDTSC for clock detection\n");
printf(" --cpulist - list all known CPUs\n");
printf(" --sgx - list SGX leaf data, if SGX is supported.\n");
printf(" --quiet - disable warnings\n");
printf(" --outfile=<file> - redirect all output to this file, instead of stdout\n");
printf(" --verbose, -v - be extra verbose (more keys increase verbosiness level)\n");
@ -280,6 +280,11 @@ static int parse_cmdline(int argc, char** argv)
need_cpulist = 1;
recog = 1;
}
if (!strcmp(arg, "--sgx")) {
need_sgx = 1;
need_identify = 1;
recog = 1;
}
if (arg[0] == '-' && arg[1] == 'v') {
num_vs = 1;
while (arg[num_vs] == 'v')
@ -317,7 +322,7 @@ static int check_need_raw_data(void)
{
int i, j;
if (need_output || need_report) return 1;
if (need_output || need_report || need_identify) return 1;
for (i = 0; i < num_requests; i++) {
for (j = 0; j < sz_match; j++)
if (requests[i] == matchtable[j].sw &&
@ -461,26 +466,6 @@ 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", (unsigned long long) data->sgx.secs_attributes);
fprintf(fout, "SGX SECS.XSAVE feature mask : %016llx\n", (unsigned long long) 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", i,
(unsigned long long) epc.start_addr, (unsigned long long) epc.length);
}
}
break;
}
default:
fprintf(fout, "How did you get here?!?\n");
break;
@ -512,6 +497,27 @@ static void print_cpulist(void)
}
}
static void print_sgx_data(const struct cpu_raw_data_t* raw, const struct cpu_id_t* data)
{
int i;
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", (unsigned long long) data->sgx.secs_attributes);
fprintf(fout, "SGX SECS.XSAVE feature mask : %016llx\n", (unsigned long long) 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", i,
(unsigned long long) epc.start_addr, (unsigned long long) epc.length);
}
}
}
int main(int argc, char** argv)
{
int parseres = parse_cmdline(argc, argv);
@ -681,7 +687,7 @@ int main(int argc, char** argv)
break;
}
/* OK, process all queries. */
if ((!need_report || !only_clock_queries) && num_requests > 0) {
if (((!need_report || !only_clock_queries) && num_requests > 0) || need_identify) {
/* Identify the CPU. Make it do cpuid_get_raw_data() itself */
if (check_need_raw_data() && cpu_identify(&raw, &data) < 0) {
if (!need_quiet)
@ -696,6 +702,9 @@ int main(int argc, char** argv)
if (need_cpulist) {
print_cpulist();
}
if (need_sgx) {
print_sgx_data(&raw, &data);
}
return 0;
}