diff options
Diffstat (limited to 'hw/acpi')
| -rw-r--r-- | hw/acpi/pcihp.c | 127 | ||||
| -rw-r--r-- | hw/acpi/piix4.c | 322 |
2 files changed, 146 insertions, 303 deletions
diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c index 3fa3d7c290..f80c48008c 100644 --- a/hw/acpi/pcihp.c +++ b/hw/acpi/pcihp.c @@ -46,13 +46,15 @@ # define ACPI_PCIHP_DPRINTF(format, ...) do { } while (0) #endif -#define PCI_HOTPLUG_ADDR 0xae00 -#define PCI_HOTPLUG_SIZE 0x0014 -#define PCI_UP_BASE 0xae00 -#define PCI_DOWN_BASE 0xae04 -#define PCI_EJ_BASE 0xae08 -#define PCI_RMV_BASE 0xae0c -#define PCI_SEL_BASE 0xae10 +#define ACPI_PCI_HOTPLUG_STATUS 2 +#define ACPI_PCIHP_ADDR 0xae00 +#define ACPI_PCIHP_SIZE 0x0014 +#define ACPI_PCIHP_LEGACY_SIZE 0x000f +#define PCI_UP_BASE 0x0000 +#define PCI_DOWN_BASE 0x0004 +#define PCI_EJ_BASE 0x0008 +#define PCI_RMV_BASE 0x000c +#define PCI_SEL_BASE 0x0010 typedef struct AcpiPciHpFind { int bsel; @@ -104,19 +106,19 @@ static PCIBus *acpi_pcihp_find_hotplug_bus(AcpiPciHpState *s, int bsel) static bool acpi_pcihp_pc_no_hotplug(AcpiPciHpState *s, PCIDevice *dev) { PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev); + DeviceClass *dc = DEVICE_GET_CLASS(dev); /* * ACPI doesn't allow hotplug of bridge devices. Don't allow * hot-unplug of bridge devices unless they were added by hotplug * (and so, not described by acpi). */ - return (pc->is_bridge && !dev->qdev.hotplugged) || pc->no_hotplug; + return (pc->is_bridge && !dev->qdev.hotplugged) || !dc->hotpluggable; } static void acpi_pcihp_eject_slot(AcpiPciHpState *s, unsigned bsel, unsigned slots) { BusChild *kid, *next; int slot = ffs(slots) - 1; - bool slot_free = true; PCIBus *bus = acpi_pcihp_find_hotplug_bus(s, bsel); if (!bus) { @@ -125,21 +127,17 @@ static void acpi_pcihp_eject_slot(AcpiPciHpState *s, unsigned bsel, unsigned slo /* Mark request as complete */ s->acpi_pcihp_pci_status[bsel].down &= ~(1U << slot); + s->acpi_pcihp_pci_status[bsel].up &= ~(1U << slot); QTAILQ_FOREACH_SAFE(kid, &bus->qbus.children, sibling, next) { DeviceState *qdev = kid->child; PCIDevice *dev = PCI_DEVICE(qdev); if (PCI_SLOT(dev->devfn) == slot) { - if (acpi_pcihp_pc_no_hotplug(s, dev)) { - slot_free = false; - } else { + if (!acpi_pcihp_pc_no_hotplug(s, dev)) { object_unparent(OBJECT(qdev)); } } } - if (slot_free) { - s->acpi_pcihp_pci_status[bsel].device_present &= ~(1U << slot); - } } static void acpi_pcihp_update_hotplug_bus(AcpiPciHpState *s, int bsel) @@ -153,7 +151,6 @@ static void acpi_pcihp_update_hotplug_bus(AcpiPciHpState *s, int bsel) } s->acpi_pcihp_pci_status[bsel].hotplug_enable = ~0; - s->acpi_pcihp_pci_status[bsel].device_present = 0; if (!bus) { return; @@ -166,8 +163,6 @@ static void acpi_pcihp_update_hotplug_bus(AcpiPciHpState *s, int bsel) if (acpi_pcihp_pc_no_hotplug(s, pdev)) { s->acpi_pcihp_pci_status[bsel].hotplug_enable &= ~(1U << slot); } - - s->acpi_pcihp_pci_status[bsel].device_present |= (1U << slot); } } @@ -185,40 +180,47 @@ void acpi_pcihp_reset(AcpiPciHpState *s) acpi_pcihp_update(s); } -static void enable_device(AcpiPciHpState *s, unsigned bsel, int slot) -{ - s->acpi_pcihp_pci_status[bsel].device_present |= (1U << slot); -} - -static void disable_device(AcpiPciHpState *s, unsigned bsel, int slot) -{ - s->acpi_pcihp_pci_status[bsel].down |= (1U << slot); -} - -int acpi_pcihp_device_hotplug(AcpiPciHpState *s, PCIDevice *dev, - PCIHotplugState state) +void acpi_pcihp_device_plug_cb(ACPIREGS *ar, qemu_irq irq, AcpiPciHpState *s, + DeviceState *dev, Error **errp) { - int slot = PCI_SLOT(dev->devfn); - int bsel = acpi_pcihp_get_bsel(dev->bus); + PCIDevice *pdev = PCI_DEVICE(dev); + int slot = PCI_SLOT(pdev->devfn); + int bsel = acpi_pcihp_get_bsel(pdev->bus); if (bsel < 0) { - return -1; + error_setg(errp, "Unsupported bus. Bus doesn't have property '" + ACPI_PCIHP_PROP_BSEL "' set"); + return; } /* Don't send event when device is enabled during qemu machine creation: * it is present on boot, no hotplug event is necessary. We do send an * event when the device is disabled later. */ - if (state == PCI_COLDPLUG_ENABLED) { - s->acpi_pcihp_pci_status[bsel].device_present |= (1U << slot); - return 0; + if (!dev->hotplugged) { + return; } - if (state == PCI_HOTPLUG_ENABLED) { - enable_device(s, bsel, slot); - } else { - disable_device(s, bsel, slot); + s->acpi_pcihp_pci_status[bsel].up |= (1U << slot); + + ar->gpe.sts[0] |= ACPI_PCI_HOTPLUG_STATUS; + acpi_update_sci(ar, irq); +} + +void acpi_pcihp_device_unplug_cb(ACPIREGS *ar, qemu_irq irq, AcpiPciHpState *s, + DeviceState *dev, Error **errp) +{ + PCIDevice *pdev = PCI_DEVICE(dev); + int slot = PCI_SLOT(pdev->devfn); + int bsel = acpi_pcihp_get_bsel(pdev->bus); + if (bsel < 0) { + error_setg(errp, "Unsupported bus. Bus doesn't have property '" + ACPI_PCIHP_PROP_BSEL "' set"); + return; } - return 0; + s->acpi_pcihp_pci_status[bsel].down |= (1U << slot); + + ar->gpe.sts[0] |= ACPI_PCI_HOTPLUG_STATUS; + acpi_update_sci(ar, irq); } static uint64_t pci_read(void *opaque, hwaddr addr, unsigned int size) @@ -232,26 +234,26 @@ static uint64_t pci_read(void *opaque, hwaddr addr, unsigned int size) } switch (addr) { - case PCI_UP_BASE - PCI_HOTPLUG_ADDR: - /* Manufacture an "up" value to cause a device check on any hotplug - * slot with a device. Extra device checks are harmless. */ - val = s->acpi_pcihp_pci_status[bsel].device_present & - s->acpi_pcihp_pci_status[bsel].hotplug_enable; + case PCI_UP_BASE: + val = s->acpi_pcihp_pci_status[bsel].up; + if (!s->legacy_piix) { + s->acpi_pcihp_pci_status[bsel].up = 0; + } ACPI_PCIHP_DPRINTF("pci_up_read %" PRIu32 "\n", val); break; - case PCI_DOWN_BASE - PCI_HOTPLUG_ADDR: + case PCI_DOWN_BASE: val = s->acpi_pcihp_pci_status[bsel].down; ACPI_PCIHP_DPRINTF("pci_down_read %" PRIu32 "\n", val); break; - case PCI_EJ_BASE - PCI_HOTPLUG_ADDR: + case PCI_EJ_BASE: /* No feature defined yet */ ACPI_PCIHP_DPRINTF("pci_features_read %" PRIu32 "\n", val); break; - case PCI_RMV_BASE - PCI_HOTPLUG_ADDR: + case PCI_RMV_BASE: val = s->acpi_pcihp_pci_status[bsel].hotplug_enable; ACPI_PCIHP_DPRINTF("pci_rmv_read %" PRIu32 "\n", val); break; - case PCI_SEL_BASE - PCI_HOTPLUG_ADDR: + case PCI_SEL_BASE: val = s->hotplug_select; ACPI_PCIHP_DPRINTF("pci_sel_read %" PRIu32 "\n", val); default: @@ -266,7 +268,7 @@ static void pci_write(void *opaque, hwaddr addr, uint64_t data, { AcpiPciHpState *s = opaque; switch (addr) { - case PCI_EJ_BASE - PCI_HOTPLUG_ADDR: + case PCI_EJ_BASE: if (s->hotplug_select >= ACPI_PCIHP_MAX_HOTPLUG_BUS) { break; } @@ -274,7 +276,7 @@ static void pci_write(void *opaque, hwaddr addr, uint64_t data, ACPI_PCIHP_DPRINTF("pciej write %" HWADDR_PRIx " <== %" PRIu64 "\n", addr, data); break; - case PCI_SEL_BASE - PCI_HOTPLUG_ADDR: + case PCI_SEL_BASE: s->hotplug_select = data; ACPI_PCIHP_DPRINTF("pcisel write %" HWADDR_PRIx " <== %" PRIu64 "\n", addr, data); @@ -294,13 +296,26 @@ static const MemoryRegionOps acpi_pcihp_io_ops = { }; void acpi_pcihp_init(AcpiPciHpState *s, PCIBus *root_bus, - MemoryRegion *address_space_io) + MemoryRegion *address_space_io, bool bridges_enabled) { + uint16_t io_size = ACPI_PCIHP_SIZE; + s->root= root_bus; + s->legacy_piix = !bridges_enabled; + + if (s->legacy_piix) { + unsigned *bus_bsel = g_malloc(sizeof *bus_bsel); + + io_size = ACPI_PCIHP_LEGACY_SIZE; + + *bus_bsel = ACPI_PCIHP_BSEL_DEFAULT; + object_property_add_uint32_ptr(OBJECT(root_bus), ACPI_PCIHP_PROP_BSEL, + bus_bsel, NULL); + } + memory_region_init_io(&s->io, NULL, &acpi_pcihp_io_ops, s, - "acpi-pci-hotplug", - PCI_HOTPLUG_SIZE); - memory_region_add_subregion(address_space_io, PCI_HOTPLUG_ADDR, &s->io); + "acpi-pci-hotplug", io_size); + memory_region_add_subregion(address_space_io, ACPI_PCIHP_ADDR, &s->io); } const VMStateDescription vmstate_acpi_pcihp_pci_status = { diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c index 5d55a3c222..9f21653e94 100644 --- a/hw/acpi/piix4.c +++ b/hw/acpi/piix4.c @@ -32,6 +32,7 @@ #include "hw/acpi/piix4.h" #include "hw/acpi/pcihp.h" #include "hw/acpi/cpu_hotplug.h" +#include "hw/hotplug.h" //#define DEBUG @@ -44,15 +45,6 @@ #define GPE_BASE 0xafe0 #define GPE_LEN 4 -#define PCI_HOTPLUG_ADDR 0xae00 -#define PCI_HOTPLUG_SIZE 0x000f -#define PCI_UP_BASE 0xae00 -#define PCI_DOWN_BASE 0xae04 -#define PCI_EJ_BASE 0xae08 -#define PCI_RMV_BASE 0xae0c - -#define PIIX4_PCI_HOTPLUG_STATUS 2 - struct pci_status { uint32_t up; /* deprecated, maintained for migration compatibility */ uint32_t down; @@ -80,13 +72,6 @@ typedef struct PIIX4PMState { Notifier machine_ready; Notifier powerdown_notifier; - /* for legacy pci hotplug (compatible with qemu 1.6 and older) */ - MemoryRegion io_pci; - struct pci_status pci0_status; - uint32_t pci0_hotplug_enable; - uint32_t pci0_slot_device_present; - - /* for new pci hotplug (with PCI2PCI bridge support) */ AcpiPciHpState acpi_pci_hotplug; bool use_acpi_pci_hotplug; @@ -170,17 +155,6 @@ static void pm_write_config(PCIDevice *d, } } -static void vmstate_pci_status_pre_save(void *opaque) -{ - struct pci_status *pci0_status = opaque; - PIIX4PMState *s = container_of(pci0_status, PIIX4PMState, pci0_status); - - /* We no longer track up, so build a safe value for migrating - * to a version that still does... of course these might get lost - * by an old buggy implementation, but we try. */ - pci0_status->up = s->pci0_slot_device_present & s->pci0_hotplug_enable; -} - static int vmstate_acpi_post_load(void *opaque, int version_id) { PIIX4PMState *s = opaque; @@ -216,10 +190,9 @@ static const VMStateDescription vmstate_pci_status = { .version_id = 1, .minimum_version_id = 1, .minimum_version_id_old = 1, - .pre_save = vmstate_pci_status_pre_save, .fields = (VMStateField []) { - VMSTATE_UINT32(up, struct pci_status), - VMSTATE_UINT32(down, struct pci_status), + VMSTATE_UINT32(up, struct AcpiPciHpPciStatus), + VMSTATE_UINT32(down, struct AcpiPciHpPciStatus), VMSTATE_END_OF_LIST() } }; @@ -256,7 +229,8 @@ static int acpi_load_old(QEMUFile *f, void *opaque, int version_id) qemu_get_be16s(f, &temp); } - ret = vmstate_load_state(f, &vmstate_pci_status, &s->pci0_status, 1); + ret = vmstate_load_state(f, &vmstate_pci_status, + &s->acpi_pci_hotplug.acpi_pcihp_pci_status[ACPI_PCIHP_BSEL_DEFAULT], 1); return ret; } @@ -294,70 +268,18 @@ static const VMStateDescription vmstate_acpi = { VMSTATE_TIMER(ar.tmr.timer, PIIX4PMState), VMSTATE_INT64(ar.tmr.overflow_time, PIIX4PMState), VMSTATE_STRUCT(ar.gpe, PIIX4PMState, 2, vmstate_gpe, ACPIGPE), - VMSTATE_STRUCT_TEST(pci0_status, PIIX4PMState, - vmstate_test_no_use_acpi_pci_hotplug, - 2, vmstate_pci_status, - struct pci_status), + VMSTATE_STRUCT_TEST( + acpi_pci_hotplug.acpi_pcihp_pci_status[ACPI_PCIHP_BSEL_DEFAULT], + PIIX4PMState, + vmstate_test_no_use_acpi_pci_hotplug, + 2, vmstate_pci_status, + struct AcpiPciHpPciStatus), VMSTATE_PCI_HOTPLUG(acpi_pci_hotplug, PIIX4PMState, vmstate_test_use_acpi_pci_hotplug), VMSTATE_END_OF_LIST() } }; -static void acpi_piix_eject_slot(PIIX4PMState *s, unsigned slots) -{ - BusChild *kid, *next; - BusState *bus = qdev_get_parent_bus(DEVICE(s)); - int slot = ffs(slots) - 1; - bool slot_free = true; - - /* Mark request as complete */ - s->pci0_status.down &= ~(1U << slot); - - QTAILQ_FOREACH_SAFE(kid, &bus->children, sibling, next) { - DeviceState *qdev = kid->child; - PCIDevice *dev = PCI_DEVICE(qdev); - PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev); - if (PCI_SLOT(dev->devfn) == slot) { - if (pc->no_hotplug) { - slot_free = false; - } else { - object_unparent(OBJECT(qdev)); - } - } - } - if (slot_free) { - s->pci0_slot_device_present &= ~(1U << slot); - } -} - -static void piix4_update_hotplug(PIIX4PMState *s) -{ - BusState *bus = qdev_get_parent_bus(DEVICE(s)); - BusChild *kid, *next; - - /* Execute any pending removes during reset */ - while (s->pci0_status.down) { - acpi_piix_eject_slot(s, s->pci0_status.down); - } - - s->pci0_hotplug_enable = ~0; - s->pci0_slot_device_present = 0; - - QTAILQ_FOREACH_SAFE(kid, &bus->children, sibling, next) { - DeviceState *qdev = kid->child; - PCIDevice *pdev = PCI_DEVICE(qdev); - PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(pdev); - int slot = PCI_SLOT(pdev->devfn); - - if (pc->no_hotplug) { - s->pci0_hotplug_enable &= ~(1U << slot); - } - - s->pci0_slot_device_present |= (1U << slot); - } -} - static void piix4_reset(void *opaque) { PIIX4PMState *s = opaque; @@ -377,11 +299,7 @@ static void piix4_reset(void *opaque) pci_conf[0x5B] = 0x02; } pm_io_space_update(s); - if (s->use_acpi_pci_hotplug) { - acpi_pcihp_reset(&s->acpi_pci_hotplug); - } else { - piix4_update_hotplug(s); - } + acpi_pcihp_reset(&s->acpi_pci_hotplug); } static void piix4_pm_powerdown_req(Notifier *n, void *opaque) @@ -392,24 +310,26 @@ static void piix4_pm_powerdown_req(Notifier *n, void *opaque) acpi_pm1_evt_power_down(&s->ar); } -static int piix4_acpi_pci_hotplug(DeviceState *qdev, PCIDevice *dev, - PCIHotplugState state) +static void piix4_pci_device_plug_cb(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp) { - PIIX4PMState *s = PIIX4_PM(qdev); - int ret = acpi_pcihp_device_hotplug(&s->acpi_pci_hotplug, dev, state); - if (ret < 0) { - return ret; - } - s->ar.gpe.sts[0] |= PIIX4_PCI_HOTPLUG_STATUS; + PIIX4PMState *s = PIIX4_PM(hotplug_dev); + acpi_pcihp_device_plug_cb(&s->ar, s->irq, &s->acpi_pci_hotplug, dev, errp); +} - acpi_update_sci(&s->ar, s->irq); - return 0; +static void piix4_pci_device_unplug_cb(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp) +{ + PIIX4PMState *s = PIIX4_PM(hotplug_dev); + acpi_pcihp_device_unplug_cb(&s->ar, s->irq, &s->acpi_pci_hotplug, dev, + errp); } -static void piix4_update_bus_hotplug(PCIBus *bus, void *opaque) +static void piix4_update_bus_hotplug(PCIBus *pci_bus, void *opaque) { PIIX4PMState *s = opaque; - pci_bus_hotplug(bus, piix4_acpi_pci_hotplug, DEVICE(s)); + + qbus_set_hotplug_handler(BUS(pci_bus), DEVICE(s), &error_abort); } static void piix4_pm_machine_ready(Notifier *n, void *opaque) @@ -428,6 +348,8 @@ static void piix4_pm_machine_ready(Notifier *n, void *opaque) 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); } } @@ -545,52 +467,6 @@ i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base, return s->smb.smbus; } -static Property piix4_pm_properties[] = { - DEFINE_PROP_UINT32("smb_io_base", PIIX4PMState, smb_io_base, 0), - DEFINE_PROP_UINT8(ACPI_PM_PROP_S3_DISABLED, PIIX4PMState, disable_s3, 0), - DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_DISABLED, PIIX4PMState, disable_s4, 0), - DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_VAL, PIIX4PMState, s4_val, 2), - DEFINE_PROP_BOOL("acpi-pci-hotplug-with-bridge-support", PIIX4PMState, - use_acpi_pci_hotplug, true), - DEFINE_PROP_END_OF_LIST(), -}; - -static void piix4_pm_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - - k->no_hotplug = 1; - k->init = piix4_pm_initfn; - k->config_write = pm_write_config; - k->vendor_id = PCI_VENDOR_ID_INTEL; - k->device_id = PCI_DEVICE_ID_INTEL_82371AB_3; - k->revision = 0x03; - k->class_id = PCI_CLASS_BRIDGE_OTHER; - dc->desc = "PM"; - dc->vmsd = &vmstate_acpi; - dc->props = piix4_pm_properties; - /* - * Reason: part of PIIX4 southbridge, needs to be wired up, - * e.g. by mips_malta_init() - */ - dc->cannot_instantiate_with_device_add_yet = true; -} - -static const TypeInfo piix4_pm_info = { - .name = TYPE_PIIX4_PM, - .parent = TYPE_PCI_DEVICE, - .instance_size = sizeof(PIIX4PMState), - .class_init = piix4_pm_class_init, -}; - -static void piix4_pm_register_types(void) -{ - type_register_static(&piix4_pm_info); -} - -type_init(piix4_pm_register_types) - static uint64_t gpe_readb(void *opaque, hwaddr addr, unsigned width) { PIIX4PMState *s = opaque; @@ -621,60 +497,6 @@ static const MemoryRegionOps piix4_gpe_ops = { .endianness = DEVICE_LITTLE_ENDIAN, }; -static uint64_t pci_read(void *opaque, hwaddr addr, unsigned int size) -{ - PIIX4PMState *s = opaque; - uint32_t val = 0; - - switch (addr) { - case PCI_UP_BASE - PCI_HOTPLUG_ADDR: - /* Manufacture an "up" value to cause a device check on any hotplug - * slot with a device. Extra device checks are harmless. */ - val = s->pci0_slot_device_present & s->pci0_hotplug_enable; - PIIX4_DPRINTF("pci_up_read %" PRIu32 "\n", val); - break; - case PCI_DOWN_BASE - PCI_HOTPLUG_ADDR: - val = s->pci0_status.down; - PIIX4_DPRINTF("pci_down_read %" PRIu32 "\n", val); - break; - case PCI_EJ_BASE - PCI_HOTPLUG_ADDR: - /* No feature defined yet */ - PIIX4_DPRINTF("pci_features_read %" PRIu32 "\n", val); - break; - case PCI_RMV_BASE - PCI_HOTPLUG_ADDR: - val = s->pci0_hotplug_enable; - break; - default: - break; - } - - return val; -} - -static void pci_write(void *opaque, hwaddr addr, uint64_t data, - unsigned int size) -{ - switch (addr) { - case PCI_EJ_BASE - PCI_HOTPLUG_ADDR: - acpi_piix_eject_slot(opaque, (uint32_t)data); - PIIX4_DPRINTF("pciej write %" HWADDR_PRIx " <== %" PRIu64 "\n", - addr, data); - break; - default: - break; - } -} - -static const MemoryRegionOps piix4_pci_ops = { - .read = pci_read, - .write = pci_write, - .endianness = DEVICE_LITTLE_ENDIAN, - .valid = { - .min_access_size = 4, - .max_access_size = 4, - }, -}; - static void piix4_cpu_added_req(Notifier *n, void *opaque) { PIIX4PMState *s = container_of(n, PIIX4PMState, cpu_added_notifier); @@ -684,9 +506,6 @@ static void piix4_cpu_added_req(Notifier *n, void *opaque) acpi_update_sci(&s->ar, s->irq); } -static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, - PCIHotplugState state); - static void piix4_acpi_system_hot_add_init(MemoryRegion *parent, PCIBus *bus, PIIX4PMState *s) { @@ -694,15 +513,8 @@ static void piix4_acpi_system_hot_add_init(MemoryRegion *parent, "acpi-gpe0", GPE_LEN); memory_region_add_subregion(parent, GPE_BASE, &s->io_gpe); - if (s->use_acpi_pci_hotplug) { - acpi_pcihp_init(&s->acpi_pci_hotplug, bus, parent); - } else { - memory_region_init_io(&s->io_pci, OBJECT(s), &piix4_pci_ops, s, - "acpi-pci-hotplug", PCI_HOTPLUG_SIZE); - memory_region_add_subregion(parent, PCI_HOTPLUG_ADDR, - &s->io_pci); - pci_bus_hotplug(bus, piix4_device_hotplug, DEVICE(s)); - } + acpi_pcihp_init(&s->acpi_pci_hotplug, bus, parent, + s->use_acpi_pci_hotplug); AcpiCpuHotplug_init(parent, OBJECT(s), &s->gpe_cpu, PIIX4_CPU_HOTPLUG_IO_BASE); @@ -710,39 +522,55 @@ static void piix4_acpi_system_hot_add_init(MemoryRegion *parent, qemu_register_cpu_added_notifier(&s->cpu_added_notifier); } -static void enable_device(PIIX4PMState *s, int slot) -{ - s->ar.gpe.sts[0] |= PIIX4_PCI_HOTPLUG_STATUS; - s->pci0_slot_device_present |= (1U << slot); -} +static Property piix4_pm_properties[] = { + DEFINE_PROP_UINT32("smb_io_base", PIIX4PMState, smb_io_base, 0), + DEFINE_PROP_UINT8(ACPI_PM_PROP_S3_DISABLED, PIIX4PMState, disable_s3, 0), + DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_DISABLED, PIIX4PMState, disable_s4, 0), + DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_VAL, PIIX4PMState, s4_val, 2), + DEFINE_PROP_BOOL("acpi-pci-hotplug-with-bridge-support", PIIX4PMState, + use_acpi_pci_hotplug, true), + DEFINE_PROP_END_OF_LIST(), +}; -static void disable_device(PIIX4PMState *s, int slot) +static void piix4_pm_class_init(ObjectClass *klass, void *data) { - s->ar.gpe.sts[0] |= PIIX4_PCI_HOTPLUG_STATUS; - s->pci0_status.down |= (1U << slot); -} + DeviceClass *dc = DEVICE_CLASS(klass); + PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); + HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass); -static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, - PCIHotplugState state) -{ - int slot = PCI_SLOT(dev->devfn); - PIIX4PMState *s = PIIX4_PM(qdev); - - /* Don't send event when device is enabled during qemu machine creation: - * it is present on boot, no hotplug event is necessary. We do send an - * event when the device is disabled later. */ - if (state == PCI_COLDPLUG_ENABLED) { - s->pci0_slot_device_present |= (1U << slot); - return 0; - } + k->init = piix4_pm_initfn; + k->config_write = pm_write_config; + k->vendor_id = PCI_VENDOR_ID_INTEL; + k->device_id = PCI_DEVICE_ID_INTEL_82371AB_3; + k->revision = 0x03; + k->class_id = PCI_CLASS_BRIDGE_OTHER; + dc->desc = "PM"; + dc->vmsd = &vmstate_acpi; + dc->props = piix4_pm_properties; + /* + * 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->hotpluggable = false; + hc->plug = piix4_pci_device_plug_cb; + hc->unplug = piix4_pci_device_unplug_cb; +} - if (state == PCI_HOTPLUG_ENABLED) { - enable_device(s, slot); - } else { - disable_device(s, slot); +static const TypeInfo piix4_pm_info = { + .name = TYPE_PIIX4_PM, + .parent = TYPE_PCI_DEVICE, + .instance_size = sizeof(PIIX4PMState), + .class_init = piix4_pm_class_init, + .interfaces = (InterfaceInfo[]) { + { TYPE_HOTPLUG_HANDLER }, + { } } +}; - acpi_update_sci(&s->ar, s->irq); - - return 0; +static void piix4_pm_register_types(void) +{ + type_register_static(&piix4_pm_info); } + +type_init(piix4_pm_register_types) |