[Qemu-devel] [PATCH RFC 3/6] pc: move apic_mapped intialization into common apic init code

[Igor Mammedov]

From: Igor Mammedov <niall...@gmail.com>

and get rid of apic_init in pc.c

Signed-off-by: Igor Mammedov <niall...@gmail.com>
---
 hw/apic_common.c |   16 ++++++++++++++++
 hw/msi.h         |    2 ++
 hw/pc.c          |   41 +++++++++--------------------------------
 3 files changed, 27 insertions(+), 32 deletions(-)

diff --git a/hw/apic_common.c b/hw/apic_common.c
index 31b46ab..0c98b41 100644
--- a/hw/apic_common.c
+++ b/hw/apic_common.c
@@ -21,6 +21,7 @@
 #include "apic_internal.h"
 #include "trace.h"
 #include "kvm.h"
+#include "msi.h"
 
 static int apic_irq_delivered;
 bool apic_report_tpr_access;
@@ -284,6 +285,7 @@ static int apic_init_common(SysBusDevice *dev)
     APICCommonClass *info;
     static DeviceState *vapic;
     static int apic_no;
+    static int apic_mapped;
 
     if (apic_no >= MAX_APICS) {
         return -1;
@@ -295,6 +297,20 @@ static int apic_init_common(SysBusDevice *dev)
 
     sysbus_init_mmio(dev, &s->io_memory);
 
+    /* XXX: mapping more APICs at the same memory location */
+    if (apic_mapped == 0) {
+        /* NOTE: the APIC is directly connected to the CPU - it is not
+           on the global memory bus. */
+        /* XXX: what if the base changes? */
+        sysbus_mmio_map(sysbus_from_qdev(&s->busdev.qdev), 0, MSI_ADDR_BASE);
+        apic_mapped = 1;
+    }
+
+    /* KVM does not support MSI yet. */
+    if (!kvm_irqchip_in_kernel()) {
+        msi_supported = true;
+    }
+
     if (!vapic && s->vapic_control & VAPIC_ENABLE_MASK) {
         vapic = sysbus_create_simple("kvmvapic", -1, NULL);
     }
diff --git a/hw/msi.h b/hw/msi.h
index 3040bb0..abd52b6 100644
--- a/hw/msi.h
+++ b/hw/msi.h
@@ -40,4 +40,6 @@ static inline bool msi_present(const PCIDevice *dev)
     return dev->cap_present & QEMU_PCI_CAP_MSI;
 }
 
+#define MSI_ADDR_BASE 0xfee00000
+
 #endif /* QEMU_MSI_H */
diff --git a/hw/pc.c b/hw/pc.c
index 7f0de99..d00ca0f 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -878,37 +878,6 @@ DeviceState *cpu_get_current_apic(void)
     }
 }
 
-static DeviceState *apic_init(void *env, uint8_t apic_id)
-{
-    DeviceState *dev;
-    static int apic_mapped;
-
-    if (kvm_irqchip_in_kernel()) {
-        dev = qdev_create(NULL, "kvm-apic");
-    } else {
-        dev = qdev_create(NULL, "apic");
-    }
-    qdev_prop_set_uint8(dev, "id", apic_id);
-    qdev_prop_set_ptr(dev, "cpu_env", env);
-    qdev_init_nofail(dev);
-
-    /* XXX: mapping more APICs at the same memory location */
-    if (apic_mapped == 0) {
-        /* NOTE: the APIC is directly connected to the CPU - it is not
-           on the global memory bus. */
-        /* XXX: what if the base changes? */
-        sysbus_mmio_map(sysbus_from_qdev(dev), 0, MSI_ADDR_BASE);
-        apic_mapped = 1;
-    }
-
-    /* KVM does not support MSI yet. */
-    if (!kvm_irqchip_in_kernel()) {
-        msi_supported = true;
-    }
-
-    return dev;
-}
-
 void pc_acpi_smi_interrupt(void *opaque, int irq, int level)
 {
     CPUX86State *s = opaque;
@@ -934,7 +903,15 @@ static CPUX86State *pc_new_cpu(const char *cpu_model)
         exit(1);
     }
     if ((env->cpuid_features & CPUID_APIC) || smp_cpus > 1) {
-        env->apic_state = apic_init(env, env->cpuid_apic_id);
+        if (kvm_irqchip_in_kernel()) {
+            env->apic_state = qdev_create(NULL, "kvm-apic");
+        } else {
+            env->apic_state = qdev_create(NULL, "apic");
+        }
+        qdev_prop_set_uint8(env->apic_state, "id", env->cpuid_apic_id);
+        qdev_prop_set_ptr(env->apic_state, "cpu_env", env);
+        qdev_init_nofail(env->apic_state);
+
         /* We hard-wire the BSP to the first CPU. */
         if (env->cpu_index == 0) {
             apic_designate_bsp(env->apic_state);
-- 
1.7.7.6