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| author | Tang Chen <tangchen@cn.fujitsu.com> | 2015-04-27 16:47:17 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-04-27 21:07:39 +0200 |
| commit | 64fec58e8ab62490edd2638e4214d8c9f84518c9 (patch) | |
| tree | a48577cda520f091834296d18eaf6ffe0a5fb1ea /hw/acpi | |
| parent | 4aae99b63333e71b2097b106bb15a6fde7f9b55b (diff) | |
| download | qemu-64fec58e8ab62490edd2638e4214d8c9f84518c9.tar.gz qemu-64fec58e8ab62490edd2638e4214d8c9f84518c9.tar.bz2 qemu-64fec58e8ab62490edd2638e4214d8c9f84518c9.zip | |
acpi, mem-hotplug: add unplug request cb for memory device
This patch adds unplug request cb for memory device, and adds the
is_removing boolean field to MemStatus. This field is used to indicate
whether the memory device in slot has been requested to be ejected.
This field is set to true in acpi_memory_unplug_request_cb().
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Zhu Guihua <zhugh.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/acpi')
| -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 |
3 files changed, 32 insertions, 3 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 { |