acpi, mem-hotplug: add acpi_memory_slot_status() to get MemStatus
Add a new API named acpi_memory_slot_status() to obtain a single memory slot status. Doing this is because this procedure will be used by other functions in the next coming patches. 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>
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@ -163,29 +163,51 @@ void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner,
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memory_region_add_subregion(as, ACPI_MEMORY_HOTPLUG_BASE, &state->io);
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}
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void acpi_memory_plug_cb(ACPIREGS *ar, qemu_irq irq, MemHotplugState *mem_st,
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DeviceState *dev, Error **errp)
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/**
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* acpi_memory_slot_status:
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* @mem_st: memory hotplug state
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* @dev: device
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* @errp: set in case of an error
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*
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* Obtain a single memory slot status.
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*
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* This function will be called by memory unplug request cb and unplug cb.
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*/
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static MemStatus *
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acpi_memory_slot_status(MemHotplugState *mem_st,
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DeviceState *dev, Error **errp)
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{
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MemStatus *mdev;
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Error *local_err = NULL;
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int slot = object_property_get_int(OBJECT(dev), PC_DIMM_SLOT_PROP,
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&local_err);
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if (local_err) {
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error_propagate(errp, local_err);
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return;
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return NULL;
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}
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if (slot >= mem_st->dev_count) {
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char *dev_path = object_get_canonical_path(OBJECT(dev));
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error_setg(errp, "acpi_memory_plug_cb: "
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error_setg(errp, "acpi_memory_slot_status: "
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"device [%s] returned invalid memory slot[%d]",
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dev_path, slot);
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g_free(dev_path);
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return NULL;
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}
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return &mem_st->devs[slot];
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}
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void acpi_memory_plug_cb(ACPIREGS *ar, qemu_irq irq, MemHotplugState *mem_st,
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DeviceState *dev, Error **errp)
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{
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MemStatus *mdev;
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mdev = acpi_memory_slot_status(mem_st, dev, errp);
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if (!mdev) {
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return;
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}
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mdev = &mem_st->devs[slot];
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mdev->dimm = dev;
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mdev->is_enabled = true;
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mdev->is_inserting = true;
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