diff options
| -rw-r--r-- | hw/i386/pc.c | 20 | ||||
| -rw-r--r-- | hw/timer/mc146818rtc.c | 7 | ||||
| -rw-r--r-- | include/hw/timer/mc146818rtc.h | 1 |
3 files changed, 28 insertions, 0 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 29d2703330..867add7ab0 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -338,6 +338,21 @@ static void pc_cmos_init_late(void *opaque) qemu_unregister_reset(pc_cmos_init_late, opaque); } +typedef struct RTCCPUHotplugArg { + Notifier cpu_added_notifier; + ISADevice *rtc_state; +} RTCCPUHotplugArg; + +static void rtc_notify_cpu_added(Notifier *notifier, void *data) +{ + RTCCPUHotplugArg *arg = container_of(notifier, RTCCPUHotplugArg, + cpu_added_notifier); + ISADevice *s = arg->rtc_state; + + /* increment the number of CPUs */ + rtc_set_memory(s, 0x5f, rtc_get_memory(s, 0x5f) + 1); +} + void pc_cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size, const char *boot_device, ISADevice *floppy, BusState *idebus0, BusState *idebus1, @@ -346,6 +361,7 @@ void pc_cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size, int val, nb, i; FDriveType fd_type[2] = { FDRIVE_DRV_NONE, FDRIVE_DRV_NONE }; static pc_cmos_init_late_arg arg; + static RTCCPUHotplugArg cpu_hotplug_cb; /* various important CMOS locations needed by PC/Bochs bios */ @@ -384,6 +400,10 @@ void pc_cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size, /* set the number of CPU */ rtc_set_memory(s, 0x5f, smp_cpus - 1); + /* init CPU hotplug notifier */ + cpu_hotplug_cb.rtc_state = s; + cpu_hotplug_cb.cpu_added_notifier.notify = rtc_notify_cpu_added; + qemu_register_cpu_added_notifier(&cpu_hotplug_cb.cpu_added_notifier); /* set boot devices, and disable floppy signature check if requested */ if (set_boot_dev(s, boot_device, fd_bootchk)) { diff --git a/hw/timer/mc146818rtc.c b/hw/timer/mc146818rtc.c index afbd0db298..481604de35 100644 --- a/hw/timer/mc146818rtc.c +++ b/hw/timer/mc146818rtc.c @@ -680,6 +680,13 @@ void rtc_set_memory(ISADevice *dev, int addr, int val) s->cmos_data[addr] = val; } +int rtc_get_memory(ISADevice *dev, int addr) +{ + RTCState *s = MC146818_RTC(dev); + assert(addr >= 0 && addr <= 127); + return s->cmos_data[addr]; +} + static void rtc_set_date_from_host(ISADevice *dev) { RTCState *s = MC146818_RTC(dev); diff --git a/include/hw/timer/mc146818rtc.h b/include/hw/timer/mc146818rtc.h index 425bd179a4..753dda6ae7 100644 --- a/include/hw/timer/mc146818rtc.h +++ b/include/hw/timer/mc146818rtc.h @@ -8,6 +8,7 @@ ISADevice *rtc_init(ISABus *bus, int base_year, qemu_irq intercept_irq); void rtc_set_memory(ISADevice *dev, int addr, int val); +int rtc_get_memory(ISADevice *dev, int addr); void rtc_set_date(ISADevice *dev, const struct tm *tm); #endif /* !MC146818RTC_H */ |