diff options
| -rw-r--r-- | tools/misc/xenpm.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/tools/misc/xenpm.c b/tools/misc/xenpm.c index 9953c802d1..d8192fe3ae 100644 --- a/tools/misc/xenpm.c +++ b/tools/misc/xenpm.c @@ -115,6 +115,9 @@ static int get_cxstat_by_cpuid(xc_interface *xc_handle, int cpuid, struct xc_cx_ if ( !cxstat ) return -EINVAL; + if ( !max_cx_num ) + return -ENODEV; + cxstat->triggers = malloc(max_cx_num * sizeof(uint64_t)); if ( !cxstat->triggers ) return -ENOMEM; @@ -147,7 +150,7 @@ static int show_max_cstate(xc_interface *xc_handle) if ( (ret = xc_get_cpuidle_max_cstate(xc_handle, &value)) ) return ret; - printf("Max C-state: C%d\n\n", value); + printf("Max possible C-state: C%d\n\n", value); return 0; } @@ -158,7 +161,11 @@ static int show_cxstat_by_cpuid(xc_interface *xc_handle, int cpuid) ret = get_cxstat_by_cpuid(xc_handle, cpuid, &cxstatinfo); if ( ret ) + { + if ( ret == -ENODEV ) + printf("Either xen cpuidle is disabled or no valid information is registered!\n"); return ret; + } print_cxstat(cpuid, &cxstatinfo); @@ -1191,7 +1198,7 @@ int main(int argc, char *argv[]) if ( nr_matches > 1 ) { - fprintf(stderr, "Ambigious options: "); + fprintf(stderr, "Ambiguous options: "); for ( i = 0; i < nr_matches; i++ ) fprintf(stderr, " %s", main_options[matches_main_options[i]].name); fprintf(stderr, "\n"); |