涂堂訓(Tang-Hsun Tu)
2010-Sep-20 11:19 UTC
[Xen-devel] Send A Fake PS/2 Packet to QEMU and Mouse Pointer on PV OS
Dear all:
I am trying to send a fake event to input layer of QEMU,
i.e. keyboard and mouse.
QEMU provides two API to send these input event,
that is, kbd_put_keycode() and kbd_mouse_event() for keyboard and mouse,
respectively.
And these functions will make a suitable packet for low-level hardware,
e.g. PS/2 or USB.
For a PS/2 mouse, there is a call chain ps2_mouse_event() =>
ps2_mouse_send_packet() => ps2_queue()
when the function kbd_mouse_event() is called.
However, when I make a fake PS/2 mouse packet and directly call ps2_queue()
to put the packet to PS/2 queue.
I store the PS2MouseState "s" when 8042 initializes and call
ps2_queue()
to send a event,
for example,
ps2_queue(&s->common, 0x1001);
ps2_queue(&s->common, 0);
ps2_queue(&s->common, 0);
And I also insert some debug message in ps2_read_data() function,
it works well and reads data from queue correctly..
But the mouse pointer does not move (even right/left click).
I also set the default mouse to "Mouse $0: QEMU PS/2 Mouse" in QEMU
consloe,
but the result is the same. What else I forgot to signal? How could I
fix it?
The second question is when I create a PV Linux (Ubuntu),
the mouse pointer does not move correctly.
The screen (VNC) shows a black point and a mouse pointer,
and their speed does not the same.
In HVM XP, we can use usbdevice=''tablet'' to fix it,
but the same line does not work in PV Linux. How could I fix it?
The last question is that does the sound can be shared (mixed)
between multiple DomainUs?
(The device will be busy when I create a domain.) If can, how could I do?
Thanks!
Best Regards,
Tang-Hsun Tu
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Felix Kuperjans
2010-Sep-20 13:20 UTC
Re: [Xen-devel] Send A Fake PS/2 Packet to QEMU and Mouse Pointer on PV OS
I can only answer your third question: You can switch to using ALSA with qemu (no idea why this is *not* the default), e.g. by recompiling xen-tools with the attached patch. In KVM, a QEMU_AUDIO_DRV="alsa" environment variable works, too. No idea whether XEN accepts it or not. Another way with further control would be to use PulseAudio in the Dom0 and in the DomUs (I think there is even a windows port), which is able to send the audio data over network connections, so you won''t need any virtual sound cards. I have no setup/tutorial at hand, but it should be easy to find on the internet. Regards, Felix Am 20.09.2010 13:19, schrieb "涂堂訓(Tang-Hsun Tu)":> Dear all: > > I am trying to send a fake event to input layer of QEMU, > i.e. keyboard and mouse. > > QEMU provides two API to send these input event, > that is, kbd_put_keycode() and kbd_mouse_event() for keyboard and > mouse, respectively. > And these functions will make a suitable packet for low-level > hardware, e.g. PS/2 or USB. > > For a PS/2 mouse, there is a call chain ps2_mouse_event() => > ps2_mouse_send_packet() => ps2_queue() > when the function kbd_mouse_event() is called. > However, when I make a fake PS/2 mouse packet and directly call > ps2_queue() > to put the packet to PS/2 queue. > I store the PS2MouseState "s" when 8042 initializes and call > ps2_queue() to send a event, > for example, > ps2_queue(&s->common, 0x1001); > ps2_queue(&s->common, 0); > ps2_queue(&s->common, 0); > > And I also insert some debug message in ps2_read_data() function, > it works well and reads data from queue correctly.. > But the mouse pointer does not move (even right/left click). > I also set the default mouse to "Mouse $0: QEMU PS/2 Mouse" in QEMU > consloe, > but the result is the same. What else I forgot to signal? How could I > fix it? > > > The second question is when I create a PV Linux (Ubuntu), > the mouse pointer does not move correctly. > The screen (VNC) shows a black point and a mouse pointer, > and their speed does not the same. > In HVM XP, we can use usbdevice=''tablet'' to fix it, > but the same line does not work in PV Linux. How could I fix it? > > > The last question is that does the sound can be shared (mixed) > between multiple DomainUs? > (The device will be busy when I create a domain.) If can, how could I do? > > > Thanks! > > Best Regards, > Tang-Hsun Tu > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
涂堂訓(Tang-Hsun Tu)
2010-Sep-21 03:27 UTC
Re: [Xen-devel] Send A Fake PS/2 Packet to QEMU and Mouse Pointer on PV OS
Hi,
Thanks for your reply, the audio patch works.
I can play audio between DomUs.
於 2010/9/20 下午 09:20, Felix Kuperjans 提到:> I can only answer your third question:
>
> You can switch to using ALSA with qemu (no idea why this is *not* the
> default), e.g. by recompiling xen-tools with the attached patch. In KVM,
> a QEMU_AUDIO_DRV="alsa" environment variable works, too. No idea
whether
> XEN accepts it or not.
>
> Another way with further control would be to use PulseAudio in the Dom0
> and in the DomUs (I think there is even a windows port), which is able
> to send the audio data over network connections, so you won''t need
any
> virtual sound cards. I have no setup/tutorial at hand, but it should be
> easy to find on the internet.
>
> Regards,
> Felix
>
> Am 20.09.2010 13:19, schrieb "涂堂訓(Tang-Hsun Tu)":
>> Dear all:
>>
>> I am trying to send a fake event to input layer of QEMU,
>> i.e. keyboard and mouse.
>>
>> QEMU provides two API to send these input event,
>> that is, kbd_put_keycode() and kbd_mouse_event() for keyboard and
>> mouse, respectively.
>> And these functions will make a suitable packet for low-level
>> hardware, e.g. PS/2 or USB.
>>
>> For a PS/2 mouse, there is a call chain ps2_mouse_event() =>
>> ps2_mouse_send_packet() => ps2_queue()
>> when the function kbd_mouse_event() is called.
>> However, when I make a fake PS/2 mouse packet and directly call
>> ps2_queue()
>> to put the packet to PS/2 queue.
>> I store the PS2MouseState "s" when 8042 initializes and call
>> ps2_queue() to send a event,
>> for example,
>> ps2_queue(&s->common, 0x1001);
>> ps2_queue(&s->common, 0);
>> ps2_queue(&s->common, 0);
>>
>> And I also insert some debug message in ps2_read_data() function,
>> it works well and reads data from queue correctly..
>> But the mouse pointer does not move (even right/left click).
>> I also set the default mouse to "Mouse $0: QEMU PS/2 Mouse"
in QEMU
>> consloe,
>> but the result is the same. What else I forgot to signal? How could I
>> fix it?
>>
>>
>> The second question is when I create a PV Linux (Ubuntu),
>> the mouse pointer does not move correctly.
>> The screen (VNC) shows a black point and a mouse pointer,
>> and their speed does not the same.
>> In HVM XP, we can use usbdevice=''tablet'' to fix it,
>> but the same line does not work in PV Linux. How could I fix it?
>>
>>
>> The last question is that does the sound can be shared (mixed)
>> between multiple DomainUs?
>> (The device will be busy when I create a domain.) If can, how could I
do?
>>
>>
>> Thanks!
>>
>> Best Regards,
>> Tang-Hsun Tu
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@lists.xensource.com
>> http://lists.xensource.com/xen-devel
>>
>>
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@lists.xensource.com
>> http://lists.xensource.com/xen-devel
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
涂堂訓(Tang-Hsun Tu)
2010-Sep-26 07:26 UTC
[Xen-devel] Re: Send A Fake PS/2 Packet to QEMU and Mouse Pointer on PV OS
Dear all:
For the question1, I try to use the function ps2_queue() to send a
PS/2 "keyboard" packet, and it works fine.
But the PS/2 mouse still cannot work. Does QEMU use a USB mouse and not
support a PS/2 mouse?
於 2010/9/20 下午 07:19, "涂堂訓(Tang-Hsun Tu)" 提到:> Dear all:
>
> I am trying to send a fake event to input layer of QEMU,
> i.e. keyboard and mouse.
>
> QEMU provides two API to send these input event,
> that is, kbd_put_keycode() and kbd_mouse_event() for keyboard and
> mouse, respectively.
> And these functions will make a suitable packet for low-level
> hardware, e.g. PS/2 or USB.
>
> For a PS/2 mouse, there is a call chain ps2_mouse_event() =>
> ps2_mouse_send_packet() => ps2_queue()
> when the function kbd_mouse_event() is called.
> However, when I make a fake PS/2 mouse packet and directly call
> ps2_queue()
> to put the packet to PS/2 queue.
> I store the PS2MouseState "s" when 8042 initializes and call
> ps2_queue() to send a event,
> for example,
> ps2_queue(&s->common, 0x1001);
> ps2_queue(&s->common, 0);
> ps2_queue(&s->common, 0);
>
> And I also insert some debug message in ps2_read_data() function,
> it works well and reads data from queue correctly..
> But the mouse pointer does not move (even right/left click).
> I also set the default mouse to "Mouse $0: QEMU PS/2 Mouse" in
QEMU
> consloe,
> but the result is the same. What else I forgot to signal? How could I
> fix it?
>
>
> The second question is when I create a PV Linux (Ubuntu),
> the mouse pointer does not move correctly.
> The screen (VNC) shows a black point and a mouse pointer,
> and their speed does not the same.
> In HVM XP, we can use usbdevice=''tablet'' to fix it,
> but the same line does not work in PV Linux. How could I fix it?
>
>
> The last question is that does the sound can be shared (mixed)
> between multiple DomainUs?
> (The device will be busy when I create a domain.) If can, how could I do?
>
>
> Thanks!
>
> Best Regards,
> Tang-Hsun Tu
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel