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authorPeter Maydell <peter.maydell@linaro.org>2013-08-20 14:54:32 +0100
committerPeter Maydell <peter.maydell@linaro.org>2013-08-20 14:54:32 +0100
commit6033e840c7b1db1055d02199fa3a28a4fd7b2386 (patch)
treee19afcee0f62da8a50f90017495af6f492fac6bd /hw/cpu
parent55d284af8e31bbdf4d545cb2d6481cd0367680fb (diff)
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hw/cpu/a15mpcore: Wire generic timer outputs to GIC inputs
Now our A15 CPU implements the generic timers, we can wire them up to the appropriate inputs on the GIC. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com> Message-id: 1376065080-26661-5-git-send-email-peter.maydell@linaro.org
Diffstat (limited to 'hw/cpu')
-rw-r--r--hw/cpu/a15mpcore.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/hw/cpu/a15mpcore.c b/hw/cpu/a15mpcore.c
index 4f37964..af182da 100644
--- a/hw/cpu/a15mpcore.c
+++ b/hw/cpu/a15mpcore.c
@@ -49,6 +49,8 @@ static int a15mp_priv_init(SysBusDevice *dev)
A15MPPrivState *s = A15MPCORE_PRIV(dev);
SysBusDevice *busdev;
const char *gictype = "arm_gic";
+ int i;
+ CPUState *cpu;
if (kvm_irqchip_in_kernel()) {
gictype = "kvm-arm-gic";
@@ -67,6 +69,22 @@ static int a15mp_priv_init(SysBusDevice *dev)
/* Pass through inbound GPIO lines to the GIC */
qdev_init_gpio_in(DEVICE(dev), a15mp_priv_set_irq, s->num_irq - 32);
+ /* Wire the outputs from each CPU's generic timer to the
+ * appropriate GIC PPI inputs
+ */
+ for (i = 0, cpu = first_cpu; i < s->num_cpu; i++, cpu = cpu->next_cpu) {
+ DeviceState *cpudev = DEVICE(cpu);
+ int ppibase = s->num_irq - 32 + i * 32;
+ /* physical timer; we wire it up to the non-secure timer's ID,
+ * since a real A15 always has TrustZone but QEMU doesn't.
+ */
+ qdev_connect_gpio_out(cpudev, 0,
+ qdev_get_gpio_in(s->gic, ppibase + 30));
+ /* virtual timer */
+ qdev_connect_gpio_out(cpudev, 1,
+ qdev_get_gpio_in(s->gic, ppibase + 27));
+ }
+
/* Memory map (addresses are offsets from PERIPHBASE):
* 0x0000-0x0fff -- reserved
* 0x1000-0x1fff -- GIC Distributor