From: "Liu, Jinsong" <jinsong.liu@intel.com>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: Konrad Rzeszutek Wilk <konrad@kernel.org>
Subject: [PATCH V1 1/3] Xen stub driver for CPU hotplug
Date: Tue, 15 Jan 2013 12:30:19 +0000 [thread overview]
Message-ID: <DE8DF0795D48FD4CA783C40EC82923353C3DB4@SHSMSX101.ccr.corp.intel.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 2623 bytes --]
>From 110b4ef3b8ebefeaf68832dd8ef8aa916a782e89 Mon Sep 17 00:00:00 2001
From: Liu Jinsong <jinsong.liu@intel.com>
Date: Mon, 14 Jan 2013 15:19:30 +0800
Subject: [PATCH 1/3] Xen stub driver for CPU hotplug
Add Xen stub driver for CPU hotplug, early occupy to block native,
will be replaced later by real Xen processor driver module.
Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
---
drivers/xen/xen-stub.c | 34 ++++++++++++++++++++++++++++++++--
include/xen/acpi.h | 6 ++++++
2 files changed, 38 insertions(+), 2 deletions(-)
diff --git a/drivers/xen/xen-stub.c b/drivers/xen/xen-stub.c
index 01a49e3..681e9cc 100644
--- a/drivers/xen/xen-stub.c
+++ b/drivers/xen/xen-stub.c
@@ -28,12 +28,13 @@
#include <acpi/acpi_drivers.h>
#include <xen/acpi.h>
+
+#ifdef CONFIG_ACPI
+
/*--------------------------------------------
stub driver for Xen memory hotplug
--------------------------------------------*/
-#ifdef CONFIG_ACPI
-
static const struct acpi_device_id memory_device_ids[] = {
{ACPI_MEMORY_DEVICE_HID, 0},
{"", 0},
@@ -57,4 +58,33 @@ static int __init xen_stub_memory_device_init(void)
}
subsys_initcall(xen_stub_memory_device_init);
+
+/*--------------------------------------------
+ stub driver for Xen cpu hotplug
+--------------------------------------------*/
+
+static const struct acpi_device_id processor_device_ids[] = {
+ {ACPI_PROCESSOR_OBJECT_HID, 0},
+ {ACPI_PROCESSOR_DEVICE_HID, 0},
+ {"", 0},
+};
+
+struct acpi_driver xen_stub_processor_driver = {
+ /* same name as native processor driver to block native loaded */
+ .name = "processor",
+ .class = ACPI_PROCESSOR_CLASS,
+ .ids = processor_device_ids,
+};
+EXPORT_SYMBOL_GPL(xen_stub_processor_driver);
+
+static int __init xen_stub_processor_init(void)
+{
+ if (!xen_initial_domain())
+ return -ENODEV;
+
+ /* just reserve space for Xen, block native driver loaded */
+ return acpi_bus_register_driver(&xen_stub_processor_driver);
+}
+subsys_initcall(xen_stub_processor_init);
+
#endif
diff --git a/include/xen/acpi.h b/include/xen/acpi.h
index 7366e58..1c99eb5 100644
--- a/include/xen/acpi.h
+++ b/include/xen/acpi.h
@@ -46,6 +46,12 @@
extern struct acpi_driver xen_stub_memory_device_driver;
+#define ACPI_PROCESSOR_CLASS "processor"
+#define ACPI_PROCESSOR_DEVICE_HID "ACPI0007"
+#define ACPI_PROCESSOR_DEVICE_NAME "Processor"
+
+extern struct acpi_driver xen_stub_processor_driver;
+
int xen_acpi_notify_hypervisor_state(u8 sleep_state,
u32 pm1a_cnt, u32 pm1b_cnd);
--
1.7.1
[-- Attachment #2: 0001-Xen-stub-driver-for-CPU-hotplug.patch --]
[-- Type: application/octet-stream, Size: 2536 bytes --]
From 110b4ef3b8ebefeaf68832dd8ef8aa916a782e89 Mon Sep 17 00:00:00 2001
From: Liu Jinsong <jinsong.liu@intel.com>
Date: Mon, 14 Jan 2013 15:19:30 +0800
Subject: [PATCH 1/3] Xen stub driver for CPU hotplug
Add Xen stub driver for CPU hotplug, early occupy to block native,
will be replaced later by real Xen processor driver module.
Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
---
drivers/xen/xen-stub.c | 34 ++++++++++++++++++++++++++++++++--
include/xen/acpi.h | 6 ++++++
2 files changed, 38 insertions(+), 2 deletions(-)
diff --git a/drivers/xen/xen-stub.c b/drivers/xen/xen-stub.c
index 01a49e3..681e9cc 100644
--- a/drivers/xen/xen-stub.c
+++ b/drivers/xen/xen-stub.c
@@ -28,12 +28,13 @@
#include <acpi/acpi_drivers.h>
#include <xen/acpi.h>
+
+#ifdef CONFIG_ACPI
+
/*--------------------------------------------
stub driver for Xen memory hotplug
--------------------------------------------*/
-#ifdef CONFIG_ACPI
-
static const struct acpi_device_id memory_device_ids[] = {
{ACPI_MEMORY_DEVICE_HID, 0},
{"", 0},
@@ -57,4 +58,33 @@ static int __init xen_stub_memory_device_init(void)
}
subsys_initcall(xen_stub_memory_device_init);
+
+/*--------------------------------------------
+ stub driver for Xen cpu hotplug
+--------------------------------------------*/
+
+static const struct acpi_device_id processor_device_ids[] = {
+ {ACPI_PROCESSOR_OBJECT_HID, 0},
+ {ACPI_PROCESSOR_DEVICE_HID, 0},
+ {"", 0},
+};
+
+struct acpi_driver xen_stub_processor_driver = {
+ /* same name as native processor driver to block native loaded */
+ .name = "processor",
+ .class = ACPI_PROCESSOR_CLASS,
+ .ids = processor_device_ids,
+};
+EXPORT_SYMBOL_GPL(xen_stub_processor_driver);
+
+static int __init xen_stub_processor_init(void)
+{
+ if (!xen_initial_domain())
+ return -ENODEV;
+
+ /* just reserve space for Xen, block native driver loaded */
+ return acpi_bus_register_driver(&xen_stub_processor_driver);
+}
+subsys_initcall(xen_stub_processor_init);
+
#endif
diff --git a/include/xen/acpi.h b/include/xen/acpi.h
index 7366e58..1c99eb5 100644
--- a/include/xen/acpi.h
+++ b/include/xen/acpi.h
@@ -46,6 +46,12 @@
extern struct acpi_driver xen_stub_memory_device_driver;
+#define ACPI_PROCESSOR_CLASS "processor"
+#define ACPI_PROCESSOR_DEVICE_HID "ACPI0007"
+#define ACPI_PROCESSOR_DEVICE_NAME "Processor"
+
+extern struct acpi_driver xen_stub_processor_driver;
+
int xen_acpi_notify_hypervisor_state(u8 sleep_state,
u32 pm1a_cnt, u32 pm1b_cnd);
--
1.7.1
next reply other threads:[~2013-01-15 12:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-15 12:30 Liu, Jinsong [this message]
2013-01-23 19:55 ` Konrad Rzeszutek Wilk
2013-01-25 6:32 ` Liu, Jinsong
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