[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v2 04/12] acpi, mem-hotplug: Add unplug request cb f
From: |
Zhu Guihua |
Subject: |
[Qemu-devel] [PATCH v2 04/12] acpi, mem-hotplug: Add unplug request cb for memory device. |
Date: |
Wed, 4 Feb 2015 10:51:18 +0800 |
From: Tang Chen <address@hidden>
Memory hot unplug are both asynchronize procedures.
When the unplug operation happens, unplug request cb is called first.
And when ghest OS finished handling unplug, unplug cb will be called
to do the real removal of device.
This patch adds unplug request cb for memory device. Add a new bool
member named is_removing to MemStatus indicating that the memory slot
is being removed. Set it to true in acpi_memory_unplug_request_cb(),
and send SCI to guest.
Signed-off-by: Tang Chen <address@hidden>
Signed-off-by: Zhu Guihua <address@hidden>
---
hw/acpi/memory_hotplug.c | 16 ++++++++++++++++
include/hw/acpi/memory_hotplug.h | 4 ++++
2 files changed, 20 insertions(+)
diff --git a/hw/acpi/memory_hotplug.c b/hw/acpi/memory_hotplug.c
index f30d8f9..3d3c1ec 100644
--- a/hw/acpi/memory_hotplug.c
+++ b/hw/acpi/memory_hotplug.c
@@ -205,6 +205,22 @@ void acpi_memory_plug_cb(ACPIREGS *ar, qemu_irq irq,
MemHotplugState *mem_st,
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);
+}
+
static const VMStateDescription vmstate_memhp_sts = {
.name = "memory hotplug device state",
.version_id = 1,
diff --git a/include/hw/acpi/memory_hotplug.h b/include/hw/acpi/memory_hotplug.h
index 7bbf8a0..c437a85 100644
--- a/include/hw/acpi/memory_hotplug.h
+++ b/include/hw/acpi/memory_hotplug.h
@@ -11,6 +11,7 @@ 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 +29,9 @@ 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) \
--
1.9.3
- Re: [Qemu-devel] [PATCH v2 03/12] acpi, mem-hotplug: Add acpi_memory_hotplug_sci() to rise sci for memory hotplug., (continued)
- [Qemu-devel] [PATCH v2 12/12] acpi: Add hardware implementation for memory hot unplug., Zhu Guihua, 2015/02/03
- [Qemu-devel] [PATCH v2 02/12] acpi, mem-hotplug: Add acpi_memory_slot_status() to get MemStatus., Zhu Guihua, 2015/02/03
- [Qemu-devel] [PATCH v2 11/12] pc-dimm: Add memory hot unplug support for pc-dimm., Zhu Guihua, 2015/02/03
- [Qemu-devel] [PATCH v2 07/12] pc-dimm: Add memory hot unplug request support for pc-dimm., Zhu Guihua, 2015/02/03
- [Qemu-devel] [PATCH v2 08/12] acpi, mem-hotplug: Add unplug cb for memory device., Zhu Guihua, 2015/02/03
- [Qemu-devel] [PATCH v2 06/12] acpi, ich9: Add memory hot unplug request support for ich9., Zhu Guihua, 2015/02/03
- [Qemu-devel] [PATCH v2 04/12] acpi, mem-hotplug: Add unplug request cb for memory device.,
Zhu Guihua <=
- Re: [Qemu-devel] [PATCH v2 00/12] QEmu memory hot unplug support, Michael S. Tsirkin, 2015/02/04
- Re: [Qemu-devel] [PATCH v2 00/12] QEmu memory hot unplug support, Igor Mammedov, 2015/02/10