[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v7 2/8] acpi, mem-hotplug: add acpi_memory_slot_stat
From: |
Zhu Guihua |
Subject: |
[Qemu-devel] [PATCH v7 2/8] acpi, mem-hotplug: add acpi_memory_slot_status() to get MemStatus |
Date: |
Mon, 27 Apr 2015 16:47:16 +0800 |
From: Tang Chen <address@hidden>
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 <address@hidden>
Signed-off-by: Tang Chen <address@hidden>
Signed-off-by: Zhu Guihua <address@hidden>
---
hw/acpi/memory_hotplug.c | 34 ++++++++++++++++++++++++++++------
1 file changed, 28 insertions(+), 6 deletions(-)
diff --git a/hw/acpi/memory_hotplug.c b/hw/acpi/memory_hotplug.c
index c6580da..6af9303 100644
--- a/hw/acpi/memory_hotplug.c
+++ b/hw/acpi/memory_hotplug.c
@@ -163,29 +163,51 @@ void acpi_memory_hotplug_init(MemoryRegion *as, Object
*owner,
memory_region_add_subregion(as, ACPI_MEMORY_HOTPLUG_BASE, &state->io);
}
-void acpi_memory_plug_cb(ACPIREGS *ar, qemu_irq irq, MemHotplugState *mem_st,
- DeviceState *dev, Error **errp)
+/**
+ * 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)
{
- MemStatus *mdev;
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;
+ return NULL;
}
if (slot >= mem_st->dev_count) {
char *dev_path = object_get_canonical_path(OBJECT(dev));
- error_setg(errp, "acpi_memory_plug_cb: "
+ 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;
+
+ mdev = acpi_memory_slot_status(mem_st, dev, errp);
+ if (!mdev) {
return;
}
- mdev = &mem_st->devs[slot];
mdev->dimm = dev;
mdev->is_enabled = true;
mdev->is_inserting = true;
--
1.9.3
- [Qemu-devel] [PATCH v7 0/8] QEMU memory hot unplug support, Zhu Guihua, 2015/04/27
- [Qemu-devel] [PATCH v7 2/8] acpi, mem-hotplug: add acpi_memory_slot_status() to get MemStatus,
Zhu Guihua <=
- [Qemu-devel] [PATCH v7 1/8] docs: update documentation for memory hot unplug, Zhu Guihua, 2015/04/27
- [Qemu-devel] [PATCH v7 3/8] acpi, mem-hotplug: add unplug request cb for memory device, Zhu Guihua, 2015/04/27
- [Qemu-devel] [PATCH v7 4/8] acpi, mem-hotplug: add unplug cb for memory device, Zhu Guihua, 2015/04/27
- [Qemu-devel] [PATCH v7 5/8] acpi: extend aml_field() to support UpdateRule, Zhu Guihua, 2015/04/27
- [Qemu-devel] [PATCH v7 6/8] acpi: fix "Memory device control fields" register, Zhu Guihua, 2015/04/27
- [Qemu-devel] [PATCH v7 7/8] acpi: add hardware implementation for memory hot unplug, Zhu Guihua, 2015/04/27
- [Qemu-devel] [PATCH v7 8/8] qmp-event: add event notification for memory hot unplug error, Zhu Guihua, 2015/04/27