diff options
| -rw-r--r-- | hw/acpi/ich9.c | 10 | ||||
| -rw-r--r-- | hw/acpi/memory_hotplug.c | 19 | ||||
| -rw-r--r-- | hw/acpi/piix4.c | 6 | ||||
| -rw-r--r-- | hw/i386/pc.c | 28 | ||||
| -rw-r--r-- | include/hw/acpi/memory_hotplug.h | 10 |
5 files changed, 68 insertions, 5 deletions
diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c index 5352e197cb..b85eed4a82 100644 --- a/hw/acpi/ich9.c +++ b/hw/acpi/ich9.c @@ -400,8 +400,14 @@ void ich9_pm_device_plug_cb(ICH9LPCPMRegs *pm, DeviceState *dev, Error **errp) void ich9_pm_device_unplug_request_cb(ICH9LPCPMRegs *pm, DeviceState *dev, Error **errp) { - error_setg(errp, "acpi: device unplug request for not supported device" - " type: %s", object_get_typename(OBJECT(dev))); + if (pm->acpi_memory_hotplug.is_enabled && + object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { + acpi_memory_unplug_request_cb(&pm->acpi_regs, pm->irq, + &pm->acpi_memory_hotplug, dev, errp); + } else { + error_setg(errp, "acpi: device unplug request for not supported device" + " type: %s", object_get_typename(OBJECT(dev))); + } } void ich9_pm_device_unplug_cb(ICH9LPCPMRegs *pm, DeviceState *dev, diff --git a/hw/acpi/memory_hotplug.c b/hw/acpi/memory_hotplug.c index 6af93032d2..42fe66850c 100644 --- a/hw/acpi/memory_hotplug.c +++ b/hw/acpi/memory_hotplug.c @@ -75,6 +75,7 @@ static uint64_t acpi_memory_hotplug_read(void *opaque, hwaddr addr, 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: @@ -218,6 +219,24 @@ void acpi_memory_plug_cb(ACPIREGS *ar, qemu_irq irq, MemHotplugState *mem_st, return; } +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 */ + ar->gpe.sts[0] |= ACPI_MEMORY_HOTPLUG_STATUS; + acpi_update_sci(ar, irq); +} + static const VMStateDescription vmstate_memhp_sts = { .name = "memory hotplug device state", .version_id = 1, diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c index d1f11793a0..f716e916c2 100644 --- a/hw/acpi/piix4.c +++ b/hw/acpi/piix4.c @@ -361,7 +361,11 @@ static void piix4_device_unplug_request_cb(HotplugHandler *hotplug_dev, { PIIX4PMState *s = PIIX4_PM(hotplug_dev); - if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { + if (s->acpi_memory_hotplug.is_enabled && + object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { + acpi_memory_unplug_request_cb(&s->ar, s->irq, &s->acpi_memory_hotplug, + dev, errp); + } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { acpi_pcihp_device_unplug_cb(&s->ar, s->irq, &s->acpi_pci_hotplug, dev, errp); } else { diff --git a/hw/i386/pc.c b/hw/i386/pc.c index a8e6be14e4..9b0859cd44 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1677,6 +1677,26 @@ out: error_propagate(errp, local_err); } +static void pc_dimm_unplug_request(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp) +{ + HotplugHandlerClass *hhc; + Error *local_err = NULL; + PCMachineState *pcms = PC_MACHINE(hotplug_dev); + + if (!pcms->acpi_dev) { + error_setg(&local_err, + "memory hotplug is not enabled: missing acpi device"); + goto out; + } + + hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev); + hhc->unplug_request(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err); + +out: + error_propagate(errp, local_err); +} + static void pc_cpu_plug(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { @@ -1719,8 +1739,12 @@ static void pc_machine_device_plug_cb(HotplugHandler *hotplug_dev, static void pc_machine_device_unplug_request_cb(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { - error_setg(errp, "acpi: device unplug request for not supported device" - " type: %s", object_get_typename(OBJECT(dev))); + if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { + pc_dimm_unplug_request(hotplug_dev, dev, errp); + } else { + error_setg(errp, "acpi: device unplug request for not supported device" + " type: %s", object_get_typename(OBJECT(dev))); + } } static void pc_machine_device_unplug_cb(HotplugHandler *hotplug_dev, diff --git a/include/hw/acpi/memory_hotplug.h b/include/hw/acpi/memory_hotplug.h index 7bbf8a0064..9d7eee97a0 100644 --- a/include/hw/acpi/memory_hotplug.h +++ b/include/hw/acpi/memory_hotplug.h @@ -7,10 +7,17 @@ #define ACPI_MEMORY_HOTPLUG_STATUS 8 +/** + * MemStatus: + * @is_removing: the memory device in slot has been requested to be ejected. + * + * This structure stores memory device's status. + */ typedef struct MemStatus { DeviceState *dimm; bool is_enabled; bool is_inserting; + bool is_removing; uint32_t ost_event; uint32_t ost_status; } MemStatus; @@ -28,6 +35,9 @@ void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner, void acpi_memory_plug_cb(ACPIREGS *ar, qemu_irq irq, MemHotplugState *mem_st, DeviceState *dev, Error **errp); +void acpi_memory_unplug_request_cb(ACPIREGS *ar, qemu_irq irq, + MemHotplugState *mem_st, + DeviceState *dev, Error **errp); extern const VMStateDescription vmstate_memory_hotplug; #define VMSTATE_MEMORY_HOTPLUG(memhp, state) \ |