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-rw-r--r--hw/misc/macio/cuda.c23
-rw-r--r--hw/misc/macio/macio.c10
-rw-r--r--hw/ppc/mac.h2
-rw-r--r--hw/ppc/mac_newworld.c1
-rw-r--r--hw/ppc/mac_oldworld.c1
5 files changed, 34 insertions, 3 deletions
diff --git a/hw/misc/macio/cuda.c b/hw/misc/macio/cuda.c
index ff6051defe..b4273aa171 100644
--- a/hw/misc/macio/cuda.c
+++ b/hw/misc/macio/cuda.c
@@ -123,13 +123,22 @@ static void cuda_update_irq(CUDAState *s)
     }
 }
 
+static uint64_t get_tb(uint64_t freq)
+{
+    return muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
+                    freq, get_ticks_per_sec());
+}
+
 static unsigned int get_counter(CUDATimer *s)
 {
     int64_t d;
     unsigned int counter;
+    uint64_t tb_diff;
+
+    /* Reverse of the tb calculation algorithm that Mac OS X uses on bootup. */
+    tb_diff = get_tb(s->frequency) - s->load_time;
+    d = (tb_diff * 0xBF401675E5DULL) / (s->frequency << 24);
 
-    d = muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - s->load_time,
-                 CUDA_TIMER_FREQ, get_ticks_per_sec());
     if (s->index == 0) {
         /* the timer goes down from latch to -1 (period of latch + 2) */
         if (d <= (s->counter_value + 1)) {
@@ -147,7 +156,7 @@ static unsigned int get_counter(CUDATimer *s)
 static void set_counter(CUDAState *s, CUDATimer *ti, unsigned int val)
 {
     CUDA_DPRINTF("T%d.counter=%d\n", 1 + (ti->timer == NULL), val);
-    ti->load_time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
+    ti->load_time = get_tb(s->frequency);
     ti->counter_value = val;
     cuda_timer_update(s, ti, ti->load_time);
 }
@@ -688,6 +697,8 @@ static void cuda_realizefn(DeviceState *dev, Error **errp)
     struct tm tm;
 
     s->timers[0].timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, cuda_timer1, s);
+    s->timers[0].frequency = s->frequency;
+    s->timers[1].frequency = s->frequency;
 
     qemu_get_timedate(&tm, 0);
     s->tick_offset = (uint32_t)mktimegm(&tm) + RTC_OFFSET;
@@ -713,6 +724,11 @@ static void cuda_initfn(Object *obj)
                         DEVICE(obj), "adb.0");
 }
 
+static Property cuda_properties[] = {
+    DEFINE_PROP_UINT64("frequency", CUDAState, frequency, 0),
+    DEFINE_PROP_END_OF_LIST()
+};
+
 static void cuda_class_init(ObjectClass *oc, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(oc);
@@ -720,6 +736,7 @@ static void cuda_class_init(ObjectClass *oc, void *data)
     dc->realize = cuda_realizefn;
     dc->reset = cuda_reset;
     dc->vmsd = &vmstate_cuda;
+    dc->props = cuda_properties;
 }
 
 static const TypeInfo cuda_type_info = {
diff --git a/hw/misc/macio/macio.c b/hw/misc/macio/macio.c
index 35eaa00dce..e0f1e88f54 100644
--- a/hw/misc/macio/macio.c
+++ b/hw/misc/macio/macio.c
@@ -42,6 +42,7 @@ typedef struct MacIOState
     void *dbdma;
     MemoryRegion *pic_mem;
     MemoryRegion *escc_mem;
+    uint64_t frequency;
 } MacIOState;
 
 #define OLDWORLD_MACIO(obj) \
@@ -351,12 +352,19 @@ static void macio_newworld_class_init(ObjectClass *oc, void *data)
     pdc->device_id = PCI_DEVICE_ID_APPLE_UNI_N_KEYL;
 }
 
+static Property macio_properties[] = {
+    DEFINE_PROP_UINT64("frequency", MacIOState, frequency, 0),
+    DEFINE_PROP_END_OF_LIST()
+};
+
 static void macio_class_init(ObjectClass *klass, void *data)
 {
     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+    DeviceClass *dc = DEVICE_CLASS(klass);
 
     k->vendor_id = PCI_VENDOR_ID_APPLE;
     k->class_id = PCI_CLASS_OTHERS << 8;
+    dc->props = macio_properties;
 }
 
 static const TypeInfo macio_oldworld_type_info = {
@@ -403,6 +411,8 @@ void macio_init(PCIDevice *d,
     macio_state->escc_mem = escc_mem;
     /* Note: this code is strongly inspirated from the corresponding code
        in PearPC */
+    qdev_prop_set_uint64(DEVICE(&macio_state->cuda), "frequency",
+                         macio_state->frequency);
 
     qdev_init_nofail(DEVICE(d));
 }
diff --git a/hw/ppc/mac.h b/hw/ppc/mac.h
index 23536f4827..aff2b9a566 100644
--- a/hw/ppc/mac.h
+++ b/hw/ppc/mac.h
@@ -57,6 +57,7 @@ typedef struct CUDATimer {
     uint16_t counter_value;
     int64_t load_time;
     int64_t next_irq_time;
+    uint64_t frequency;
     QEMUTimer *timer;
 } CUDATimer;
 
@@ -97,6 +98,7 @@ typedef struct CUDAState {
     CUDATimer timers[2];
 
     uint32_t tick_offset;
+    uint64_t frequency;
 
     uint8_t last_b;
     uint8_t last_acr;
diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c
index d525247c0a..8453bfa284 100644
--- a/hw/ppc/mac_newworld.c
+++ b/hw/ppc/mac_newworld.c
@@ -395,6 +395,7 @@ static void ppc_core99_init(MachineState *machine)
     qdev_connect_gpio_out(dev, 2, pic[0x02]); /* IDE DMA */
     qdev_connect_gpio_out(dev, 3, pic[0x0e]); /* IDE */
     qdev_connect_gpio_out(dev, 4, pic[0x03]); /* IDE DMA */
+    qdev_prop_set_uint64(dev, "frequency", tbfreq);
     macio_init(macio, pic_mem, escc_bar);
 
     /* We only emulate 2 out of 3 IDE controllers for now */
diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c
index 863dd2fc3a..630a9f9c36 100644
--- a/hw/ppc/mac_oldworld.c
+++ b/hw/ppc/mac_oldworld.c
@@ -286,6 +286,7 @@ static void ppc_heathrow_init(MachineState *machine)
     qdev_connect_gpio_out(dev, 2, pic[0x02]); /* IDE-0 DMA */
     qdev_connect_gpio_out(dev, 3, pic[0x0E]); /* IDE-1 */
     qdev_connect_gpio_out(dev, 4, pic[0x03]); /* IDE-1 DMA */
+    qdev_prop_set_uint64(dev, "frequency", tbfreq);
     macio_init(macio, pic_mem, escc_bar);
 
     macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),