Can I run guest Windows inside Linux and do remote debugging?

Can I run guest Windows inside Linux and do remote debugging?

[Neo Jia]

hi,

I am wondering if I can running a guest Windows inside Linux host with
KVM and doing remote debugging (through firewire) another Windows
machine (running natively).

Thanks,
Neo
-- 
I would remember that if researchers were not ambitious
probably today we haven't the technology we are using!

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Re: Can I run guest Windows inside Linux and do remotedebugging?

[Dong, Eddie]

kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org wrote:
> hi,
> 
> I am wondering if I can running a guest Windows inside Linux host with
> KVM and doing remote debugging (through firewire) another Windows
> machine (running natively). 
> 
This should be OK as if the connection is network.
eddie

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Re: Can I run guest Windows inside Linux and do remotedebugging?

[Dor Laor]

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Neo Jia wrote:
>
> hi,
>
> I am wondering if I can running a guest Windows inside Linux host with
> KVM and doing remote debugging (through firewire) another Windows
> machine (running natively).
>
> Thanks,
> Neo
>
While its not exactly what you asked for, one can debug a windows guest 
using another
windows guest. Here are the instructions: 
http://kvm.qumranet.com/kvmwiki/WindowsGuestDebug.
Enjoy, Dor
>
> --
> I would remember that if researchers were not ambitious
> probably today we haven't the technology we are using!
>
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> _______________________________________________
> kvm-devel mailing list
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> https://lists.sourceforge.net/lists/listinfo/kvm-devel
>


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Re: Can I run guest Windows inside Linux and do remotedebugging?

[Neo Jia]

Thanks. But I cannot use that since I am going to debug drivers
running on Windows and qemu does not expose the real hardware to
guest.

So, here is another question, is there any plan to make qemu transfer
the real hardware to guest?

Thanks,
Neo

On Nov 14, 2007 11:54 PM, Dor Laor <dor.laor-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>  Neo Jia wrote:
>
>
> hi,
>
>  I am wondering if I can running a guest Windows inside Linux host with
>  KVM and doing remote debugging (through firewire) another Windows
>  machine (running natively).
>
>  Thanks,
>  Neo
>  While its not exactly what you asked for, one can debug a windows guest
> using another
>  windows guest. Here are the instructions:
> http://kvm.qumranet.com/kvmwiki/WindowsGuestDebug.
>  Enjoy, Dor
>
>
>
> --
>
>  I would remember that if researchers were not ambitious
>  probably today we haven't the technology we are using!
>
>  -------------------------------------------------------------------------
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>  Now Search log events and configuration files using AJAX and a browser.
>  Download your FREE copy of Splunk now >> http://get.splunk.com/
>  _______________________________________________
>  kvm-devel mailing list
>  kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
>  https://lists.sourceforge.net/lists/listinfo/kvm-devel
>
>



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Re: Can I run guest Windows inside Linux and do remotedebugging?

[Dor Laor]

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Neo Jia wrote:
> Thanks. But I cannot use that since I am going to debug drivers
> running on Windows and qemu does not expose the real hardware to
> guest.
>
> So, here is another question, is there any plan to make qemu transfer
> the real hardware to guest?
>
>   
Not at the moment, there is work in progress (actually patches have been 
sent) that allows 1-1
mapping between guest-host addresses and pci passthrough code so you can 
assign a
physical device to a windows guest. This is experimental at the moment 
but can work.
> Thanks,
> Neo
>
> On Nov 14, 2007 11:54 PM, Dor Laor <dor.laor-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>   
>>  Neo Jia wrote:
>>
>>
>> hi,
>>
>>  I am wondering if I can running a guest Windows inside Linux host with
>>  KVM and doing remote debugging (through firewire) another Windows
>>  machine (running natively).
>>
>>  Thanks,
>>  Neo
>>  While its not exactly what you asked for, one can debug a windows guest
>> using another
>>  windows guest. Here are the instructions:
>> http://kvm.qumranet.com/kvmwiki/WindowsGuestDebug.
>>  Enjoy, Dor
>>
>>
>>
>> --
>>
>>  I would remember that if researchers were not ambitious
>>  probably today we haven't the technology we are using!
>>
>>  -------------------------------------------------------------------------
>>  This SF.net email is sponsored by: Splunk Inc.
>>  Still grepping through log files to find problems?  Stop.
>>  Now Search log events and configuration files using AJAX and a browser.
>>  Download your FREE copy of Splunk now >> http://get.splunk.com/
>>  _______________________________________________
>>  kvm-devel mailing list
>>  kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
>>  https://lists.sourceforge.net/lists/listinfo/kvm-devel
>>
>>
>>     
>
>
>
>   


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Re: Can I run guest Windows inside Linux and doremotedebugging?

[Dong, Eddie]

kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org wrote:
> Thanks. But I cannot use that since I am going to debug drivers
> running on Windows and qemu does not expose the real hardware to
> guest. 
> 
> So, here is another question, is there any plan to make qemu transfer
> the real hardware to guest? 
> 

I guess you are talking about serial port assignment which is another
story.

Pass-through devices support is for PCI device only. For leagcy serial
port, 
you don't need device assignment, I remember Yunhong Jiang ever posted a

patch in Xen side to support Windows kernel debug. Basically you can 
direct vSerial port input/output to physical serial port easily in Qemu,
but 
there are binary data format conversion tricky there if I remember
correctly.

CC yunhong here.
Eddie

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Re: Can I run guest Windows inside Linux and doremotedebugging?

[Neo Jia]

On Nov 15, 2007 2:30 AM, Dong, Eddie <eddie.dong-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> wrote:
> kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org wrote:
> > Thanks. But I cannot use that since I am going to debug drivers
> > running on Windows and qemu does not expose the real hardware to
> > guest.
> >
> > So, here is another question, is there any plan to make qemu transfer
> > the real hardware to guest?
> >
>
> I guess you are talking about serial port assignment which is another
> story.

How about the firewire?

Thanks,
Neo

>
> Pass-through devices support is for PCI device only. For leagcy serial
> port,
> you don't need device assignment, I remember Yunhong Jiang ever posted a
>
> patch in Xen side to support Windows kernel debug. Basically you can
> direct vSerial port input/output to physical serial port easily in Qemu,
> but
> there are binary data format conversion tricky there if I remember
> correctly.
>
> CC yunhong here.
> Eddie
>



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probably today we haven't the technology we are using!

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Re: Can I run guest Windows inside Linux and doremotedebugging?

[Jiang, Yunhong]

To achieve this, it mean QEMU will transfer serial port data write from
guest to physical one, and also read data received through real physical
serial port and transfer received data to guest.

You can use qemu option "serial",  set serial=/dev/ttyS0 to acheive that
. But I remember that code had some defect before and not sure current
status.

Thanks
Yunhong Jiang

Dong, Eddie <> wrote:
> kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org wrote:
>> Thanks. But I cannot use that since I am going to debug drivers
>> running on Windows and qemu does not expose the real hardware to
guest.
>> 
>> So, here is another question, is there any plan to make qemu transfer
the
>> real hardware to guest? 
>> 
> 
> I guess you are talking about serial port assignment which is another
story.
> 
> Pass-through devices support is for PCI device only. For
> leagcy serial port,
> you don't need device assignment, I remember Yunhong Jiang
> ever posted a
> patch in Xen side to support Windows kernel debug. Basically you can
> direct vSerial port input/output to physical serial port
> easily in Qemu, but
> there are binary data format conversion tricky there if I
> remember correctly.
> 
> CC yunhong here.
> Eddie

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Re: Can I run guest Windows inside Linux and doremotedebugging?

[Neo Jia]

On Nov 16, 2007 12:15 AM, Jiang, Yunhong <yunhong.jiang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> wrote:
> To achieve this, it mean QEMU will transfer serial port data write from
> guest to physical one, and also read data received through real physical
> serial port and transfer received data to guest.
>
> You can use qemu option "serial",  set serial=/dev/ttyS0 to acheive that
> . But I remember that code had some defect before and not sure current
> status.

So, I think if I want to using a expansion 1394 firewire card on my
Linux machine it will goes to the following KVM todo list, right?

"Add a Unix domain socket device. With this, the guest can talk to a
pci device which is connected to a Unix domain socket on the host."

Thanks,
Neo


>
> Thanks
> Yunhong Jiang
>
>
> Dong, Eddie <> wrote:
> > kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org wrote:
> >> Thanks. But I cannot use that since I am going to debug drivers
> >> running on Windows and qemu does not expose the real hardware to
> guest.
> >>
> >> So, here is another question, is there any plan to make qemu transfer
> the
> >> real hardware to guest?
> >>
> >
> > I guess you are talking about serial port assignment which is another
> story.
> >
> > Pass-through devices support is for PCI device only. For
> > leagcy serial port,
> > you don't need device assignment, I remember Yunhong Jiang
> > ever posted a
> > patch in Xen side to support Windows kernel debug. Basically you can
> > direct vSerial port input/output to physical serial port
> > easily in Qemu, but
> > there are binary data format conversion tricky there if I
> > remember correctly.
> >
> > CC yunhong here.
> > Eddie
>



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probably today we haven't the technology we are using!

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Re: Can I run guest Windows inside Linux and doremotedebugging?

[Dong, Eddie]

Neo Jia wrote:
> On Nov 16, 2007 12:15 AM, Jiang, Yunhong
> <yunhong.jiang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> wrote:
>> To achieve this, it mean QEMU will transfer serial port data write
>> from guest to physical one, and also read data received through real
>> physical serial port and transfer received data to guest.
>> 
>> You can use qemu option "serial",  set serial=/dev/ttyS0 to acheive
>> that . But I remember that code had some defect before and not sure
>> current status.
> 
> So, I think if I want to using a expansion 1394 firewire card on my
> Linux machine it will goes to the following KVM todo list, right?
> 
Yes, 1394 can be assigned if pass-through support is done.

> "Add a Unix domain socket device. With this, the guest can talk to a
> pci device which is connected to a Unix domain socket on the host."
> 
> Thanks,
> Neo
> 
But for your dedicated purpose, I would say serial port is much
convenient
than assigned 1394 card except speed difference. BTW, why network 
doesn;t work for you, are u debugging network driver?

You can also try using what Yunhong said. Maybe Qemu already picked
Yunhong's Xen patch.

Thx,Eddie

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