[Qemu-devel] [PATCH v2 2/4] zynq_slcr: Add links to the CPUs

[Peter Crosthwaite]

From: Peter A. G. Crosthwaite <peter.crosthwa...@petalogix.com>

The SLCR needs to be able to reset the CPUs, so link the CPUs to the slcr.

Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwa...@petalogix.com>
---

 hw/xilinx_zynq.c |   11 +++++++++++
 hw/zynq_slcr.c   |    9 +++++++++
 2 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/hw/xilinx_zynq.c b/hw/xilinx_zynq.c
index 22a2bc5..fc81521 100644
--- a/hw/xilinx_zynq.c
+++ b/hw/xilinx_zynq.c
@@ -100,6 +100,10 @@ static void zynq_init(ram_addr_t ram_size, const char 
*boot_device,
         }
         irqp = arm_pic_init_cpu(cpus[n]);
         cpu_irq[n] = irqp[ARM_PIC_CPU_IRQ];
+        /* FIXME: handle this somewhere central */
+        object_property_add_child(container_get(qdev_get_machine(),
+                                  "/unattached"), g_strdup_printf("cpu[%d]", 
n),
+                                  OBJECT(cpus[n]), NULL);
     }
 
     /* max 2GB ram */
@@ -128,6 +132,13 @@ static void zynq_init(ram_addr_t ram_size, const char 
*boot_device,
 
     dev = qdev_create(NULL, "xilinx,zynq_slcr");
     qdev_init_nofail(dev);
+    Error *errp = NULL;
+    object_property_set_link(OBJECT(dev), OBJECT(cpus[0]), "cpu0", &errp);
+    assert_no_error(errp);
+    if (smp_cpus > 1) {
+        object_property_set_link(OBJECT(dev), OBJECT(cpus[1]), "cpu1", NULL);
+        assert_no_error(errp);
+    }
     sysbus_mmio_map(sysbus_from_qdev(dev), 0, 0xF8000000);
 
     dev = qdev_create(NULL, "a9mpcore_priv");
diff --git a/hw/zynq_slcr.c b/hw/zynq_slcr.c
index 4f97575..468fb0e 100644
--- a/hw/zynq_slcr.c
+++ b/hw/zynq_slcr.c
@@ -19,6 +19,8 @@
 #include "sysbus.h"
 #include "sysemu.h"
 
+#define NUM_CPUS 2
+
 #ifdef ZYNQ_ARM_SLCR_ERR_DEBUG
 #define DB_PRINT(...) do { \
     fprintf(stderr,  ": %s: ", __func__); \
@@ -118,6 +120,8 @@ typedef struct {
     SysBusDevice busdev;
     MemoryRegion iomem;
 
+    ARMCPU *cpus[NUM_CPUS];
+
     union {
         struct {
             uint16_t scl;
@@ -496,6 +500,11 @@ static int zynq_slcr_init(SysBusDevice *dev)
     memory_region_init_io(&s->iomem, &slcr_ops, s, "slcr", 0x1000);
     sysbus_init_mmio(dev, &s->iomem);
 
+    object_property_add_link(OBJECT(dev), "cpu0", TYPE_ARM_CPU,
+                             (Object **) &s->cpus[0], NULL);
+    object_property_add_link(OBJECT(dev), "cpu1", TYPE_ARM_CPU,
+                             (Object **) &s->cpus[1], NULL);
+
     return 0;
 }
 
-- 
1.7.0.4