* [Qemu-devel] [PATCH 0/1] ACPI: Call ACPI remove handler when handling ACPI eject
@ 2011-10-19 2:47 pingfank
0 siblings, 0 replies; 6+ messages in thread
From: pingfank @ 2011-10-19 2:47 UTC (permalink / raw)
To: linux-acpi, seabios, lenb, shaohua.li
Cc: Liu Ping Fan, aliguori, dave, linux-kernel, qemu-devel
From: Liu Ping Fan <pingfank@linux.vnet.ibm.com>
When I tried to enable cpu hotplug feature for qemu-kvm, I found that the ACPI device eject event just skipped by kernel.
static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
{
case ACPI_NOTIFY_EJECT_REQUEST:
/* TBD */---> skipped from here
}
But I notice, in drivers/acpi/dock.c, dock_notify()->handle_eject_request() will handle such event for ACPI _dock device.
So what we shall do, changing Qemu's SeaBIOS or changing the kernel? If changing SeaBIOS, will it affect guest MS-Window?
Thanks,
ping fan
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Qemu-devel] [PATCH 0/1] ACPI: Call ACPI remove handler when handling ACPI eject
@ 2011-10-19 2:53 pingfank
2011-10-19 2:53 ` [Qemu-devel] [PATCH 1/1] ACPI: Call ACPI remove handler when handling ACPI eject event pingfank
0 siblings, 1 reply; 6+ messages in thread
From: pingfank @ 2011-10-19 2:53 UTC (permalink / raw)
To: linux-kernel, seabios, lenb, shaohua.li
Cc: aliguori, Liu Ping Fan, qemu-devel, dave
From: Liu Ping Fan <pingfank@linux.vnet.ibm.com>
When I tried to enable cpu hotplug feature for qemu-kvm, I found that the ACPI device eject event just skipped by kernel.
static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
{
case ACPI_NOTIFY_EJECT_REQUEST:
/* TBD */---> skipped from here
}
But I notice, in drivers/acpi/dock.c, dock_notify()->handle_eject_request() will handle such event for ACPI _dock device.
So what we shall do, changing Qemu's SeaBIOS or changing the kernel? If changing SeaBIOS, will it affect guest MS-Window?
Thanks,
ping fan
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Qemu-devel] [PATCH 1/1] ACPI: Call ACPI remove handler when handling ACPI eject event
2011-10-19 2:53 [Qemu-devel] [PATCH 0/1] ACPI: Call ACPI remove handler when handling ACPI eject pingfank
@ 2011-10-19 2:53 ` pingfank
2011-10-19 3:50 ` canquan.shen
0 siblings, 1 reply; 6+ messages in thread
From: pingfank @ 2011-10-19 2:53 UTC (permalink / raw)
To: linux-kernel, seabios, lenb, shaohua.li
Cc: aliguori, Liu Ping Fan, qemu-devel, dave
From: Liu Ping Fan <pingfank@linux.vnet.ibm.com>
Call the remove handler for ACPI_NOTIFY_EJECT_REQUEST
Signed-off-by: Liu Ping Fan <pingfank@linux.vnet.ibm.com>
---
drivers/acpi/bus.c | 2 +-
drivers/acpi/scan.c | 2 +-
include/acpi/acpi_bus.h | 2 ++
3 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 437ddbf..d06ec6d 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -764,7 +764,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
break;
case ACPI_NOTIFY_EJECT_REQUEST:
- /* TBD */
+ acpi_os_hotplug_execute(acpi_bus_hot_remove_device, handle);
break;
case ACPI_NOTIFY_DEVICE_CHECK_LIGHT:
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 449c556..3b97b61 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -83,7 +83,7 @@ acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, cha
}
static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL);
-static void acpi_bus_hot_remove_device(void *context)
+void acpi_bus_hot_remove_device(void *context)
{
struct acpi_device *device;
acpi_handle handle = context;
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 6cd5b64..b19c09d 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -310,6 +310,8 @@ extern int unregister_acpi_notifier(struct notifier_block *);
extern int register_acpi_bus_notifier(struct notifier_block *nb);
extern void unregister_acpi_bus_notifier(struct notifier_block *nb);
+extern void acpi_bus_hot_remove_device(void *context);
+
/*
* External Functions
*/
--
1.7.4.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [Qemu-devel] [PATCH 1/1] ACPI: Call ACPI remove handler when handling ACPI eject event
2011-10-19 2:53 ` [Qemu-devel] [PATCH 1/1] ACPI: Call ACPI remove handler when handling ACPI eject event pingfank
@ 2011-10-19 3:50 ` canquan.shen
2011-10-20 8:08 ` liu ping fan
0 siblings, 1 reply; 6+ messages in thread
From: canquan.shen @ 2011-10-19 3:50 UTC (permalink / raw)
To: pingfank
Cc: aliguori, seabios, qemu-devel, linux-kernel, shaohua.li, dave,
lenb
Hi ping fan,
Your patch is similar with my patch, my patch name is "acpi: Fix CPU
hot removal problem".
Thanks.
Canquan.Shen
2011-10-19
On 2011/10/19 10:53, pingfank@linux.vnet.ibm.com wrote:
> From: Liu Ping Fan<pingfank@linux.vnet.ibm.com>
>
> Call the remove handler for ACPI_NOTIFY_EJECT_REQUEST
>
> Signed-off-by: Liu Ping Fan<pingfank@linux.vnet.ibm.com>
> ---
> drivers/acpi/bus.c | 2 +-
> drivers/acpi/scan.c | 2 +-
> include/acpi/acpi_bus.h | 2 ++
> 3 files changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
> index 437ddbf..d06ec6d 100644
> --- a/drivers/acpi/bus.c
> +++ b/drivers/acpi/bus.c
> @@ -764,7 +764,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
> break;
>
> case ACPI_NOTIFY_EJECT_REQUEST:
> - /* TBD */
> + acpi_os_hotplug_execute(acpi_bus_hot_remove_device, handle);
> break;
>
> case ACPI_NOTIFY_DEVICE_CHECK_LIGHT:
> diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
> index 449c556..3b97b61 100644
> --- a/drivers/acpi/scan.c
> +++ b/drivers/acpi/scan.c
> @@ -83,7 +83,7 @@ acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, cha
> }
> static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL);
>
> -static void acpi_bus_hot_remove_device(void *context)
> +void acpi_bus_hot_remove_device(void *context)
> {
> struct acpi_device *device;
> acpi_handle handle = context;
> diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
> index 6cd5b64..b19c09d 100644
> --- a/include/acpi/acpi_bus.h
> +++ b/include/acpi/acpi_bus.h
> @@ -310,6 +310,8 @@ extern int unregister_acpi_notifier(struct notifier_block *);
>
> extern int register_acpi_bus_notifier(struct notifier_block *nb);
> extern void unregister_acpi_bus_notifier(struct notifier_block *nb);
> +extern void acpi_bus_hot_remove_device(void *context);
> +
> /*
> * External Functions
> */
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Qemu-devel] [PATCH 1/1] ACPI: Call ACPI remove handler when handling ACPI eject event
2011-10-19 3:50 ` canquan.shen
@ 2011-10-20 8:08 ` liu ping fan
2011-10-20 8:34 ` canquan.shen
0 siblings, 1 reply; 6+ messages in thread
From: liu ping fan @ 2011-10-20 8:08 UTC (permalink / raw)
To: canquan.shen
Cc: len.brown, aliguori, gong.chen, qemu-devel, seabios, linux-kernel,
dave
On Wed, Oct 19, 2011 at 11:50:19AM +0800, canquan.shen wrote:
> Hi ping fan,
> Your patch is similar with my patch, my patch name is "acpi: Fix
> CPU hot removal problem".
I saw your patch, a little similar. BTW, how are things going on? It is a
long time since V0 patch
>
> Thanks.
> Canquan.Shen
> 2011-10-19
>
> On 2011/10/19 10:53, pingfank@linux.vnet.ibm.com wrote:
> >From: Liu Ping Fan<pingfank@linux.vnet.ibm.com>
> >
> >Call the remove handler for ACPI_NOTIFY_EJECT_REQUEST
> >
> >Signed-off-by: Liu Ping Fan<pingfank@linux.vnet.ibm.com>
> >---
> > drivers/acpi/bus.c | 2 +-
> > drivers/acpi/scan.c | 2 +-
> > include/acpi/acpi_bus.h | 2 ++
> > 3 files changed, 4 insertions(+), 2 deletions(-)
> >
> >diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
> >index 437ddbf..d06ec6d 100644
> >--- a/drivers/acpi/bus.c
> >+++ b/drivers/acpi/bus.c
> >@@ -764,7 +764,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
> > break;
> >
> > case ACPI_NOTIFY_EJECT_REQUEST:
> >- /* TBD */
> >+ acpi_os_hotplug_execute(acpi_bus_hot_remove_device, handle);
> > break;
> >
> > case ACPI_NOTIFY_DEVICE_CHECK_LIGHT:
> >diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
> >index 449c556..3b97b61 100644
> >--- a/drivers/acpi/scan.c
> >+++ b/drivers/acpi/scan.c
> >@@ -83,7 +83,7 @@ acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, cha
> > }
> > static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL);
> >
> >-static void acpi_bus_hot_remove_device(void *context)
> >+void acpi_bus_hot_remove_device(void *context)
> > {
> > struct acpi_device *device;
> > acpi_handle handle = context;
> >diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
> >index 6cd5b64..b19c09d 100644
> >--- a/include/acpi/acpi_bus.h
> >+++ b/include/acpi/acpi_bus.h
> >@@ -310,6 +310,8 @@ extern int unregister_acpi_notifier(struct notifier_block *);
> >
> > extern int register_acpi_bus_notifier(struct notifier_block *nb);
> > extern void unregister_acpi_bus_notifier(struct notifier_block *nb);
> >+extern void acpi_bus_hot_remove_device(void *context);
> >+
> > /*
> > * External Functions
> > */
>
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Qemu-devel] [PATCH 1/1] ACPI: Call ACPI remove handler when handling ACPI eject event
2011-10-20 8:08 ` liu ping fan
@ 2011-10-20 8:34 ` canquan.shen
0 siblings, 0 replies; 6+ messages in thread
From: canquan.shen @ 2011-10-20 8:34 UTC (permalink / raw)
To: liu ping fan
Cc: len.brown, aliguori, gong.chen, qemu-devel, seabios, linux-kernel,
dave
On 2011/10/20 16:08, liu ping fan wrote:
> On Wed, Oct 19, 2011 at 11:50:19AM +0800, canquan.shen wrote:
>> Hi ping fan,
>> Your patch is similar with my patch, my patch name is "acpi: Fix
>> CPU hot removal problem".
> I saw your patch, a little similar. BTW, how are things going on? It is a
> long time since V0 patch
>>
This patch has reviewed by Bjorn, and I am waiting for len.brown's
response .
>> Thanks.
>> Canquan.Shen
>> 2011-10-19
>>
>> On 2011/10/19 10:53, pingfank@linux.vnet.ibm.com wrote:
>>> From: Liu Ping Fan<pingfank@linux.vnet.ibm.com>
>>>
>>> Call the remove handler for ACPI_NOTIFY_EJECT_REQUEST
>>>
>>> Signed-off-by: Liu Ping Fan<pingfank@linux.vnet.ibm.com>
>>> ---
>>> drivers/acpi/bus.c | 2 +-
>>> drivers/acpi/scan.c | 2 +-
>>> include/acpi/acpi_bus.h | 2 ++
>>> 3 files changed, 4 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
>>> index 437ddbf..d06ec6d 100644
>>> --- a/drivers/acpi/bus.c
>>> +++ b/drivers/acpi/bus.c
>>> @@ -764,7 +764,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
>>> break;
>>>
>>> case ACPI_NOTIFY_EJECT_REQUEST:
>>> - /* TBD */
>>> + acpi_os_hotplug_execute(acpi_bus_hot_remove_device, handle);
>>> break;
>>>
>>> case ACPI_NOTIFY_DEVICE_CHECK_LIGHT:
>>> diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
>>> index 449c556..3b97b61 100644
>>> --- a/drivers/acpi/scan.c
>>> +++ b/drivers/acpi/scan.c
>>> @@ -83,7 +83,7 @@ acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, cha
>>> }
>>> static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL);
>>>
>>> -static void acpi_bus_hot_remove_device(void *context)
>>> +void acpi_bus_hot_remove_device(void *context)
>>> {
>>> struct acpi_device *device;
>>> acpi_handle handle = context;
>>> diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
>>> index 6cd5b64..b19c09d 100644
>>> --- a/include/acpi/acpi_bus.h
>>> +++ b/include/acpi/acpi_bus.h
>>> @@ -310,6 +310,8 @@ extern int unregister_acpi_notifier(struct notifier_block *);
>>>
>>> extern int register_acpi_bus_notifier(struct notifier_block *nb);
>>> extern void unregister_acpi_bus_notifier(struct notifier_block *nb);
>>> +extern void acpi_bus_hot_remove_device(void *context);
>>> +
>>> /*
>>> * External Functions
>>> */
>>
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>> Please read the FAQ at http://www.tux.org/lkml/
>>
>
>
> .
>
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2011-10-20 8:37 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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2011-10-19 2:53 [Qemu-devel] [PATCH 0/1] ACPI: Call ACPI remove handler when handling ACPI eject pingfank
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2011-10-19 3:50 ` canquan.shen
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