diff options
Diffstat (limited to 'qemu/hw/acpi/memory_hotplug.c')
| -rw-r--r-- | qemu/hw/acpi/memory_hotplug.c | 312 |
1 files changed, 0 insertions, 312 deletions
diff --git a/qemu/hw/acpi/memory_hotplug.c b/qemu/hw/acpi/memory_hotplug.c deleted file mode 100644 index f65a3a21e..000000000 --- a/qemu/hw/acpi/memory_hotplug.c +++ /dev/null @@ -1,312 +0,0 @@ -#include "qemu/osdep.h" -#include "hw/acpi/memory_hotplug.h" -#include "hw/acpi/pc-hotplug.h" -#include "hw/mem/pc-dimm.h" -#include "hw/boards.h" -#include "hw/qdev-core.h" -#include "trace.h" -#include "qapi-event.h" - -static ACPIOSTInfo *acpi_memory_device_status(int slot, MemStatus *mdev) -{ - ACPIOSTInfo *info = g_new0(ACPIOSTInfo, 1); - - info->slot_type = ACPI_SLOT_TYPE_DIMM; - info->slot = g_strdup_printf("%d", slot); - info->source = mdev->ost_event; - info->status = mdev->ost_status; - if (mdev->dimm) { - DeviceState *dev = DEVICE(mdev->dimm); - if (dev->id) { - info->device = g_strdup(dev->id); - info->has_device = true; - } - } - return info; -} - -void acpi_memory_ospm_status(MemHotplugState *mem_st, ACPIOSTInfoList ***list) -{ - int i; - - for (i = 0; i < mem_st->dev_count; i++) { - ACPIOSTInfoList *elem = g_new0(ACPIOSTInfoList, 1); - elem->value = acpi_memory_device_status(i, &mem_st->devs[i]); - elem->next = NULL; - **list = elem; - *list = &elem->next; - } -} - -static uint64_t acpi_memory_hotplug_read(void *opaque, hwaddr addr, - unsigned int size) -{ - uint32_t val = 0; - MemHotplugState *mem_st = opaque; - MemStatus *mdev; - Object *o; - - if (mem_st->selector >= mem_st->dev_count) { - trace_mhp_acpi_invalid_slot_selected(mem_st->selector); - return 0; - } - - mdev = &mem_st->devs[mem_st->selector]; - o = OBJECT(mdev->dimm); - switch (addr) { - case 0x0: /* Lo part of phys address where DIMM is mapped */ - val = o ? object_property_get_int(o, PC_DIMM_ADDR_PROP, NULL) : 0; - trace_mhp_acpi_read_addr_lo(mem_st->selector, val); - break; - case 0x4: /* Hi part of phys address where DIMM is mapped */ - val = o ? object_property_get_int(o, PC_DIMM_ADDR_PROP, NULL) >> 32 : 0; - trace_mhp_acpi_read_addr_hi(mem_st->selector, val); - break; - case 0x8: /* Lo part of DIMM size */ - val = o ? object_property_get_int(o, PC_DIMM_SIZE_PROP, NULL) : 0; - trace_mhp_acpi_read_size_lo(mem_st->selector, val); - break; - case 0xc: /* Hi part of DIMM size */ - val = o ? object_property_get_int(o, PC_DIMM_SIZE_PROP, NULL) >> 32 : 0; - trace_mhp_acpi_read_size_hi(mem_st->selector, val); - break; - case 0x10: /* node proximity for _PXM method */ - val = o ? object_property_get_int(o, PC_DIMM_NODE_PROP, NULL) : 0; - trace_mhp_acpi_read_pxm(mem_st->selector, val); - break; - case 0x14: /* pack and return is_* fields */ - val |= mdev->is_enabled ? 1 : 0; - val |= mdev->is_inserting ? 2 : 0; - val |= mdev->is_removing ? 4 : 0; - trace_mhp_acpi_read_flags(mem_st->selector, val); - break; - default: - val = ~0; - break; - } - return val; -} - -static void acpi_memory_hotplug_write(void *opaque, hwaddr addr, uint64_t data, - unsigned int size) -{ - MemHotplugState *mem_st = opaque; - MemStatus *mdev; - ACPIOSTInfo *info; - DeviceState *dev = NULL; - HotplugHandler *hotplug_ctrl = NULL; - Error *local_err = NULL; - - if (!mem_st->dev_count) { - return; - } - - if (addr) { - if (mem_st->selector >= mem_st->dev_count) { - trace_mhp_acpi_invalid_slot_selected(mem_st->selector); - return; - } - } - - switch (addr) { - case 0x0: /* DIMM slot selector */ - mem_st->selector = data; - trace_mhp_acpi_write_slot(mem_st->selector); - break; - case 0x4: /* _OST event */ - mdev = &mem_st->devs[mem_st->selector]; - if (data == 1) { - /* TODO: handle device insert OST event */ - } else if (data == 3) { - /* TODO: handle device remove OST event */ - } - mdev->ost_event = data; - trace_mhp_acpi_write_ost_ev(mem_st->selector, mdev->ost_event); - break; - case 0x8: /* _OST status */ - mdev = &mem_st->devs[mem_st->selector]; - mdev->ost_status = data; - trace_mhp_acpi_write_ost_status(mem_st->selector, mdev->ost_status); - /* TODO: implement memory removal on guest signal */ - - info = acpi_memory_device_status(mem_st->selector, mdev); - qapi_event_send_acpi_device_ost(info, &error_abort); - qapi_free_ACPIOSTInfo(info); - break; - case 0x14: /* set is_* fields */ - mdev = &mem_st->devs[mem_st->selector]; - if (data & 2) { /* clear insert event */ - mdev->is_inserting = false; - trace_mhp_acpi_clear_insert_evt(mem_st->selector); - } else if (data & 4) { - mdev->is_removing = false; - trace_mhp_acpi_clear_remove_evt(mem_st->selector); - } else if (data & 8) { - if (!mdev->is_enabled) { - trace_mhp_acpi_ejecting_invalid_slot(mem_st->selector); - break; - } - - dev = DEVICE(mdev->dimm); - hotplug_ctrl = qdev_get_hotplug_handler(dev); - /* call pc-dimm unplug cb */ - hotplug_handler_unplug(hotplug_ctrl, dev, &local_err); - if (local_err) { - trace_mhp_acpi_pc_dimm_delete_failed(mem_st->selector); - qapi_event_send_mem_unplug_error(dev->id, - error_get_pretty(local_err), - &error_abort); - error_free(local_err); - break; - } - trace_mhp_acpi_pc_dimm_deleted(mem_st->selector); - } - break; - default: - break; - } - -} -static const MemoryRegionOps acpi_memory_hotplug_ops = { - .read = acpi_memory_hotplug_read, - .write = acpi_memory_hotplug_write, - .endianness = DEVICE_LITTLE_ENDIAN, - .valid = { - .min_access_size = 1, - .max_access_size = 4, - }, -}; - -void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner, - MemHotplugState *state) -{ - MachineState *machine = MACHINE(qdev_get_machine()); - - state->dev_count = machine->ram_slots; - if (!state->dev_count) { - return; - } - - state->devs = g_malloc0(sizeof(*state->devs) * state->dev_count); - memory_region_init_io(&state->io, owner, &acpi_memory_hotplug_ops, state, - "acpi-mem-hotplug", ACPI_MEMORY_HOTPLUG_IO_LEN); - memory_region_add_subregion(as, ACPI_MEMORY_HOTPLUG_BASE, &state->io); -} - -/** - * acpi_memory_slot_status: - * @mem_st: memory hotplug state - * @dev: device - * @errp: set in case of an error - * - * Obtain a single memory slot status. - * - * This function will be called by memory unplug request cb and unplug cb. - */ -static MemStatus * -acpi_memory_slot_status(MemHotplugState *mem_st, - DeviceState *dev, Error **errp) -{ - Error *local_err = NULL; - int slot = object_property_get_int(OBJECT(dev), PC_DIMM_SLOT_PROP, - &local_err); - - if (local_err) { - error_propagate(errp, local_err); - return NULL; - } - - if (slot >= mem_st->dev_count) { - char *dev_path = object_get_canonical_path(OBJECT(dev)); - error_setg(errp, "acpi_memory_slot_status: " - "device [%s] returned invalid memory slot[%d]", - dev_path, slot); - g_free(dev_path); - return NULL; - } - - return &mem_st->devs[slot]; -} - -void acpi_memory_plug_cb(ACPIREGS *ar, qemu_irq irq, MemHotplugState *mem_st, - DeviceState *dev, Error **errp) -{ - MemStatus *mdev; - DeviceClass *dc = DEVICE_GET_CLASS(dev); - - if (!dc->hotpluggable) { - return; - } - - mdev = acpi_memory_slot_status(mem_st, dev, errp); - if (!mdev) { - return; - } - - mdev->dimm = dev; - mdev->is_enabled = true; - if (dev->hotplugged) { - mdev->is_inserting = true; - - /* do ACPI magic */ - acpi_send_gpe_event(ar, irq, ACPI_MEMORY_HOTPLUG_STATUS); - } -} - -void acpi_memory_unplug_request_cb(ACPIREGS *ar, qemu_irq irq, - MemHotplugState *mem_st, - DeviceState *dev, Error **errp) -{ - MemStatus *mdev; - - mdev = acpi_memory_slot_status(mem_st, dev, errp); - if (!mdev) { - return; - } - - mdev->is_removing = true; - - /* Do ACPI magic */ - acpi_send_gpe_event(ar, irq, ACPI_MEMORY_HOTPLUG_STATUS); -} - -void acpi_memory_unplug_cb(MemHotplugState *mem_st, - DeviceState *dev, Error **errp) -{ - MemStatus *mdev; - - mdev = acpi_memory_slot_status(mem_st, dev, errp); - if (!mdev) { - return; - } - - mdev->is_enabled = false; - mdev->dimm = NULL; -} - -static const VMStateDescription vmstate_memhp_sts = { - .name = "memory hotplug device state", - .version_id = 1, - .minimum_version_id = 1, - .minimum_version_id_old = 1, - .fields = (VMStateField[]) { - VMSTATE_BOOL(is_enabled, MemStatus), - VMSTATE_BOOL(is_inserting, MemStatus), - VMSTATE_UINT32(ost_event, MemStatus), - VMSTATE_UINT32(ost_status, MemStatus), - VMSTATE_END_OF_LIST() - } -}; - -const VMStateDescription vmstate_memory_hotplug = { - .name = "memory hotplug state", - .version_id = 1, - .minimum_version_id = 1, - .minimum_version_id_old = 1, - .fields = (VMStateField[]) { - VMSTATE_UINT32(selector, MemHotplugState), - VMSTATE_STRUCT_VARRAY_POINTER_UINT32(devs, MemHotplugState, dev_count, - vmstate_memhp_sts, MemStatus), - VMSTATE_END_OF_LIST() - } -}; 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