* [PATCH V1 1/3] Xen stub driver for CPU hotplug
@ 2013-01-15 12:30 Liu, Jinsong
2013-01-23 19:55 ` Konrad Rzeszutek Wilk
0 siblings, 1 reply; 3+ messages in thread
From: Liu, Jinsong @ 2013-01-15 12:30 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk, xen-devel@lists.xensource.com,
linux-kernel@vger.kernel.org
Cc: Konrad Rzeszutek Wilk
[-- 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
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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
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH V1 1/3] Xen stub driver for CPU hotplug
2013-01-15 12:30 [PATCH V1 1/3] Xen stub driver for CPU hotplug Liu, Jinsong
@ 2013-01-23 19:55 ` Konrad Rzeszutek Wilk
2013-01-25 6:32 ` Liu, Jinsong
0 siblings, 1 reply; 3+ messages in thread
From: Konrad Rzeszutek Wilk @ 2013-01-23 19:55 UTC (permalink / raw)
To: Liu, Jinsong
Cc: xen-devel@lists.xensource.com, linux-kernel@vger.kernel.org,
Konrad Rzeszutek Wilk
On Tue, Jan 15, 2013 at 12:30:19PM +0000, Liu, Jinsong wrote:
> >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);
Could you make this be
xen_stub_processor_deinit() instead?
> +
> +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
^ permalink raw reply [flat|nested] 3+ messages in thread
* RE: [PATCH V1 1/3] Xen stub driver for CPU hotplug
2013-01-23 19:55 ` Konrad Rzeszutek Wilk
@ 2013-01-25 6:32 ` Liu, Jinsong
0 siblings, 0 replies; 3+ messages in thread
From: Liu, Jinsong @ 2013-01-25 6:32 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: xen-devel@lists.xensource.com, linux-kernel@vger.kernel.org,
Konrad Rzeszutek Wilk
Konrad Rzeszutek Wilk wrote:
> On Tue, Jan 15, 2013 at 12:30:19PM +0000, Liu, Jinsong wrote:
>>> 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);
>
> Could you make this be
>
> xen_stub_processor_deinit() instead?
>
Updated, w/ 2 funcs EXPORT_SYMBOL_GPL to cpu hotplug module:
xen_stub_processor_init()
xen_stub_processor_exit()
Thanks,
Jinsong
^ permalink raw reply [flat|nested] 3+ messages in thread
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