diff options
Diffstat (limited to 'src/fw/paravirt.c')
| -rw-r--r-- | src/fw/paravirt.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/src/fw/paravirt.c b/src/fw/paravirt.c index 3465f97e..e76fa65d 100644 --- a/src/fw/paravirt.c +++ b/src/fw/paravirt.c @@ -447,6 +447,11 @@ qemu_get_romfile_key(struct romfile_s *file) return qfile->select; } +static int rtc_present(void) +{ + return rtc_read(CMOS_RTC_MONTH) != 0xff; +} + u16 qemu_get_present_cpus_count(void) { @@ -454,9 +459,11 @@ qemu_get_present_cpus_count(void) if (qemu_cfg_enabled()) { qemu_cfg_read_entry(&smp_count, QEMU_CFG_NB_CPUS, sizeof(smp_count)); } - u16 cmos_cpu_count = rtc_read(CMOS_BIOS_SMP_COUNT) + 1; - if (smp_count < cmos_cpu_count) { - smp_count = cmos_cpu_count; + if (rtc_present()) { + u16 cmos_cpu_count = rtc_read(CMOS_BIOS_SMP_COUNT) + 1; + if (smp_count < cmos_cpu_count) { + smp_count = cmos_cpu_count; + } } return smp_count; } |