]> Git Repo - qemu.git/blobdiff - hw/acpi/piix4.c
Include hw/qdev-properties.h less
[qemu.git] / hw / acpi / piix4.c
index c409374ab80686e293af53f9aa9dfad4e079141b..3ff35a49e40c1f3ce99186fecd321aed00c387da 100644 (file)
  * Contributions after 2012-01-13 are licensed under the terms of the
  * GNU GPL, version 2 or (at your option) any later version.
  */
+
 #include "qemu/osdep.h"
-#include "hw/hw.h"
 #include "hw/i386/pc.h"
+#include "hw/irq.h"
 #include "hw/isa/apm.h"
 #include "hw/i2c/pm_smbus.h"
 #include "hw/pci/pci.h"
+#include "hw/qdev-properties.h"
 #include "hw/acpi/acpi.h"
+#include "sysemu/reset.h"
 #include "sysemu/sysemu.h"
 #include "qapi/error.h"
 #include "qemu/range.h"
-#include "exec/ioport.h"
-#include "hw/nvram/fw_cfg.h"
 #include "exec/address-spaces.h"
 #include "hw/acpi/piix4.h"
 #include "hw/acpi/pcihp.h"
 #include "hw/acpi/memory_hotplug.h"
 #include "hw/acpi/acpi_dev_interface.h"
 #include "hw/xen/xen.h"
+#include "migration/qemu-file-types.h"
+#include "migration/vmstate.h"
 #include "qom/cpu.h"
-
-//#define DEBUG
-
-#ifdef DEBUG
-# define PIIX4_DPRINTF(format, ...)     printf(format, ## __VA_ARGS__)
-#else
-# define PIIX4_DPRINTF(format, ...)     do { } while (0)
-#endif
+#include "trace.h"
 
 #define GPE_BASE 0xafe0
 #define GPE_LEN 4
@@ -94,8 +90,6 @@ typedef struct PIIX4PMState {
     MemHotplugState acpi_memory_hotplug;
 } PIIX4PMState;
 
-#define TYPE_PIIX4_PM "PIIX4_PM"
-
 #define PIIX4_PM(obj) \
     OBJECT_CHECK(PIIX4PMState, (obj), TYPE_PIIX4_PM)
 
@@ -174,6 +168,7 @@ static int vmstate_acpi_post_load(void *opaque, int version_id)
     PIIX4PMState *s = opaque;
 
     pm_io_space_update(s);
+    smbus_io_space_update(s);
     return 0;
 }
 
@@ -302,6 +297,11 @@ static const VMStateDescription vmstate_cpuhp_state = {
     }
 };
 
+static bool piix4_vmstate_need_smbus(void *opaque, int version_id)
+{
+    return pm_smbus_vmstate_needed();
+}
+
 /* qemu-kvm 1.2 uses version 3 but advertised as 2
  * To support incoming qemu-kvm 1.2 migration, change version_id
  * and minimum_version_id to 2 below (which breaks migration from
@@ -321,6 +321,8 @@ static const VMStateDescription vmstate_acpi = {
         VMSTATE_UINT16(ar.pm1.evt.en, PIIX4PMState),
         VMSTATE_UINT16(ar.pm1.cnt.cnt, PIIX4PMState),
         VMSTATE_STRUCT(apm, PIIX4PMState, 0, vmstate_apm, APMState),
+        VMSTATE_STRUCT_TEST(smb, PIIX4PMState, piix4_vmstate_need_smbus, 3,
+                            pmsmb_vmstate, PMSMBus),
         VMSTATE_TIMER_PTR(ar.tmr.timer, PIIX4PMState),
         VMSTATE_INT64(ar.tmr.overflow_time, PIIX4PMState),
         VMSTATE_STRUCT(ar.gpe, PIIX4PMState, 2, vmstate_gpe, ACPIGPE),
@@ -371,13 +373,32 @@ static void piix4_pm_powerdown_req(Notifier *n, void *opaque)
     acpi_pm1_evt_power_down(&s->ar);
 }
 
+static void piix4_device_pre_plug_cb(HotplugHandler *hotplug_dev,
+                                    DeviceState *dev, Error **errp)
+{
+    PIIX4PMState *s = PIIX4_PM(hotplug_dev);
+
+    if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
+        acpi_pcihp_device_pre_plug_cb(hotplug_dev, dev, errp);
+    } else if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
+        if (!s->acpi_memory_hotplug.is_enabled) {
+            error_setg(errp,
+                "memory hotplug is not enabled: %s.memory-hotplug-support "
+                "is not set", object_get_typename(OBJECT(s)));
+        }
+    } else if (
+               !object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
+        error_setg(errp, "acpi: device pre plug request for not supported"
+                   " device type: %s", object_get_typename(OBJECT(dev)));
+    }
+}
+
 static void piix4_device_plug_cb(HotplugHandler *hotplug_dev,
                                  DeviceState *dev, Error **errp)
 {
     PIIX4PMState *s = PIIX4_PM(hotplug_dev);
 
-    if (s->acpi_memory_hotplug.is_enabled &&
-        object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
+    if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
         if (object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)) {
             nvdimm_acpi_plug_cb(hotplug_dev, dev);
         } else {
@@ -385,10 +406,7 @@ static void piix4_device_plug_cb(HotplugHandler *hotplug_dev,
                                 dev, errp);
         }
     } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
-        if (!xen_enabled()) {
-            acpi_pcihp_device_plug_cb(hotplug_dev, &s->acpi_pci_hotplug, dev,
-                                      errp);
-        }
+        acpi_pcihp_device_plug_cb(hotplug_dev, &s->acpi_pci_hotplug, dev, errp);
     } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
         if (s->cpu_hotplug_legacy) {
             legacy_acpi_cpu_plug_cb(hotplug_dev, &s->gpe_cpu, dev, errp);
@@ -396,8 +414,7 @@ static void piix4_device_plug_cb(HotplugHandler *hotplug_dev,
             acpi_cpu_plug_cb(hotplug_dev, &s->cpuhp_state, dev, errp);
         }
     } else {
-        error_setg(errp, "acpi: device plug request for not supported device"
-                   " type: %s", object_get_typename(OBJECT(dev)));
+        g_assert_not_reached();
     }
 }
 
@@ -411,10 +428,8 @@ static void piix4_device_unplug_request_cb(HotplugHandler *hotplug_dev,
         acpi_memory_unplug_request_cb(hotplug_dev, &s->acpi_memory_hotplug,
                                       dev, errp);
     } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
-        if (!xen_enabled()) {
-            acpi_pcihp_device_unplug_cb(hotplug_dev, &s->acpi_pci_hotplug, dev,
-                                        errp);
-        }
+        acpi_pcihp_device_unplug_request_cb(hotplug_dev, &s->acpi_pci_hotplug,
+                                            dev, errp);
     } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) &&
                !s->cpu_hotplug_legacy) {
         acpi_cpu_unplug_request_cb(hotplug_dev, &s->cpuhp_state, dev, errp);
@@ -432,6 +447,9 @@ static void piix4_device_unplug_cb(HotplugHandler *hotplug_dev,
     if (s->acpi_memory_hotplug.is_enabled &&
         object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
         acpi_memory_unplug_cb(&s->acpi_memory_hotplug, dev, errp);
+    } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
+        acpi_pcihp_device_unplug_cb(hotplug_dev, &s->acpi_pci_hotplug, dev,
+                                    errp);
     } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) &&
                !s->cpu_hotplug_legacy) {
         acpi_cpu_unplug_cb(&s->cpuhp_state, dev, errp);
@@ -441,15 +459,6 @@ static void piix4_device_unplug_cb(HotplugHandler *hotplug_dev,
     }
 }
 
-static void piix4_update_bus_hotplug(PCIBus *pci_bus, void *opaque)
-{
-    PIIX4PMState *s = opaque;
-
-    /* pci_bus cannot outlive PIIX4PMState, because /machine keeps it alive
-     * and it's not hot-unpluggable */
-    qbus_set_hotplug_handler(BUS(pci_bus), DEVICE(s), &error_abort);
-}
-
 static void piix4_pm_machine_ready(Notifier *n, void *opaque)
 {
     PIIX4PMState *s = container_of(n, PIIX4PMState, machine_ready);
@@ -463,12 +472,6 @@ static void piix4_pm_machine_ready(Notifier *n, void *opaque)
     pci_conf[0x63] = 0x60;
     pci_conf[0x67] = (memory_region_present(io_as, 0x3f8) ? 0x08 : 0) |
         (memory_region_present(io_as, 0x2f8) ? 0x90 : 0);
-
-    if (s->use_acpi_pci_hotplug) {
-        pci_for_each_bus(d->bus, piix4_update_bus_hotplug, s);
-    } else {
-        piix4_update_bus_hotplug(d->bus, s);
-    }
 }
 
 static void piix4_pm_add_propeties(PIIX4PMState *s)
@@ -518,7 +521,7 @@ static void piix4_pm_realize(PCIDevice *dev, Error **errp)
     pci_conf[0x90] = s->smb_io_base | 1;
     pci_conf[0x91] = s->smb_io_base >> 8;
     pci_conf[0xd2] = 0x09;
-    pm_smbus_init(DEVICE(dev), &s->smb);
+    pm_smbus_init(DEVICE(dev), &s->smb, true);
     memory_region_set_enabled(&s->smb.io, pci_conf[0xd2] & 1);
     memory_region_add_subregion(pci_address_space_io(dev),
                                 s->smb_io_base, &s->smb.io);
@@ -540,22 +543,13 @@ static void piix4_pm_realize(PCIDevice *dev, Error **errp)
     qemu_add_machine_init_done_notifier(&s->machine_ready);
     qemu_register_reset(piix4_reset, s);
 
-    piix4_acpi_system_hot_add_init(pci_address_space_io(dev), dev->bus, s);
+    piix4_acpi_system_hot_add_init(pci_address_space_io(dev),
+                                   pci_get_bus(dev), s);
+    qbus_set_hotplug_handler(BUS(pci_get_bus(dev)), OBJECT(s), &error_abort);
 
     piix4_pm_add_propeties(s);
 }
 
-Object *piix4_pm_find(void)
-{
-    bool ambig;
-    Object *o = object_resolve_path_type("", TYPE_PIIX4_PM, &ambig);
-
-    if (ambig || !o) {
-        return NULL;
-    }
-    return o;
-}
-
 I2CBus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
                       qemu_irq sci_irq, qemu_irq smi_irq,
                       int smm_enabled, DeviceState **piix4_pm)
@@ -587,7 +581,7 @@ static uint64_t gpe_readb(void *opaque, hwaddr addr, unsigned width)
     PIIX4PMState *s = opaque;
     uint32_t val = acpi_gpe_ioport_readb(&s->ar, addr);
 
-    PIIX4_DPRINTF("gpe read %" HWADDR_PRIx " == %" PRIu32 "\n", addr, val);
+    trace_piix4_gpe_readb(addr, width, val);
     return val;
 }
 
@@ -596,10 +590,9 @@ static void gpe_writeb(void *opaque, hwaddr addr, uint64_t val,
 {
     PIIX4PMState *s = opaque;
 
+    trace_piix4_gpe_writeb(addr, width, val);
     acpi_gpe_ioport_writeb(&s->ar, addr, val);
     acpi_update_sci(&s->ar, s->irq);
-
-    PIIX4_DPRINTF("gpe write %" HWADDR_PRIx " <== %" PRIu64 "\n", addr, val);
 }
 
 static const MemoryRegionOps piix4_gpe_ops = {
@@ -705,8 +698,9 @@ static void piix4_pm_class_init(ObjectClass *klass, void *data)
      * Reason: part of PIIX4 southbridge, needs to be wired up,
      * e.g. by mips_malta_init()
      */
-    dc->cannot_instantiate_with_device_add_yet = true;
+    dc->user_creatable = false;
     dc->hotpluggable = false;
+    hc->pre_plug = piix4_device_pre_plug_cb;
     hc->plug = piix4_device_plug_cb;
     hc->unplug_request = piix4_device_unplug_request_cb;
     hc->unplug = piix4_device_unplug_cb;
@@ -723,6 +717,7 @@ static const TypeInfo piix4_pm_info = {
     .interfaces = (InterfaceInfo[]) {
         { TYPE_HOTPLUG_HANDLER },
         { TYPE_ACPI_DEVICE_IF },
+        { INTERFACE_CONVENTIONAL_PCI_DEVICE },
         { }
     }
 };
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