Mailing List Archive: Xen: ARM

Para-virtualized linux kernel release for the Tegra2 harmony board.

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jm77.ryu at samsung

Feb 7, 2012, 5:12 PM

Post #1 of 8 (837 views)
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Para-virtualized linux kernel release for the Tegra2 harmony board.

Samsung Enterprise Portal mySingle

We have release a reference code for a para-virtualized linux kernel.

You will find it on "git://xenbits.xen.org/people/jm77ryu/linux-xen.git"

In case of xen-arm source, please visit to "git://xenbits.xen.org/people/jm77ryu/xen-arm.git"

- Build Instructions: -

1. extract root filesytem contents as following(This requires the root privilege)
sudo tar -xvpf rootfs_dom0.tar.bz2

2. cp config_dom0 .config

3. make ARCH=arm

** Turn on target board, and download the xen-arm image(xen) and the kernel image(vmlinux.out0).
** download addresse is :
***** xen-arm : 0x8000
***** guest kernel images : 0x1e800000

- booting domu -

** To boot domu (the rootfilesystem of dom0 already has prebuilt domu kernel images, see images directory.)
# smd start <- start lightweight
# vm create /etc/xen/dom1
# xenconsole 1 <= This command switch console to dom 1.

* For domu build, use config_domu configuration file.
* Don't forget to copy the vmlinux.out1 to rootfs_dom0/images directory after domu kernel build.

dongsoo.kim at resl

Feb 7, 2012, 5:15 PM

Post #2 of 8 (811 views)
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Re: Para-virtualized linux kernel release for the Tegra2 harmony board. [In reply to]

Hello,

Thank you for hassle free instructions.

I'll give it a shot.

Cheers,

2012/2/8 Jae-Min Ryu <jm77.ryu [at] samsung>

> We have release a reference code for a para-virtualized linux kernel.
>
>
> You will find it on "git://xenbits.xen.org/people/jm77ryu/linux-xen.git"
>
> In case of xen-arm source, please visit to "git://
> xenbits.xen.org/people/jm77ryu/xen-arm.git"
>
>
> - Build Instructions: -
>
> 1. extract root filesytem contents as following(This requires the root
> privilege)
> sudo tar -xvpf rootfs_dom0.tar.bz2
>
> 2. cp config_dom0 .config
>
> 3. make ARCH=arm
>
> ** Turn on target board, and download the xen-arm image(xen) and the
> kernel image(vmlinux.out0).
> ** download addresse is :
> ***** xen-arm : 0x8000
> ***** guest kernel images : 0x1e800000
>
> - booting domu -
>
> ** To boot domu (the rootfilesystem of dom0 already has prebuilt domu
> kernel images, see images directory.)
> # smd start <- start lightweight
> # vm create /etc/xen/dom1
> # xenconsole 1 <= This command switch console to dom 1.
>
> * For domu build, use config_domu configuration file.
> * Don't forget to copy the vmlinux.out1 to rootfs_dom0/images directory
> after domu kernel build.
>
>
>
> _______________________________________________
> Xen-arm mailing list
> Xen-arm [at] lists
> http://lists.xensource.com/mailman/listinfo/xen-arm
>
>

--
=
Dongsoo Nathaniel Kim
Linux kernel, media device S/W engineer / Ph.D Student
Dept. of Computer Science, KAIST
Real-time & Embedded Systems Lab.

post4pavan at gmail

Mar 8, 2012, 4:58 AM

Post #3 of 8 (720 views)
Permalink

Re: Para-virtualized linux kernel release for the Tegra2 harmony board. [In reply to]

Hi Xen-ARM,

I have got the ParaVirtualised Linux Kernel.
I have made using ARCH=arm and with specific configs.
Now that, I don't have a Tegra2 Harmony Board, but interested in Xen on
Tegra 2 Board with Cortex-A9 arch.

How can I use it on qemu-system-arm?

vmlinux(.out0) is available from the make in the paravirtualized kernel
source.
vmlinux.out1 is available in the rootfs_dom0 in the images directory.

But, If it is to be run on qemu-system-arm, then rootfs has to be in .img
or .img.gz format [ i think ].

Is there any other way to run this on qemu-system-arm?

Will it be possible / Was it done before?

Please Suggest!

--
✉ Regards :: Krishna Pavan ✍

ryos at sinby

Mar 8, 2012, 9:00 PM

Post #4 of 8 (725 views)
Permalink

Re: Para-virtualized linux kernel release for the Tegra2 harmony board. [In reply to]

Hi,

I have a experience to run xen and dom0 on QEMU.

In my case, I patched qemu sources to load two elf object, Xen and dom0 linux. I didn’t use rootfs.

From: xen-arm-bounces [at] lists [mailto:xen-arm-bounces [at] lists] On Behalf Of Krishna Pavan
Sent: Thursday, March 08, 2012 9:59 PM
To: Xen
Cc: jm77.ryu [at] samsung
Subject: Re: [XenARM] Para-virtualized linux kernel release for the Tegra2 harmony board.

Hi Xen-ARM,

I have got the ParaVirtualised Linux Kernel.
I have made using ARCH=arm and with specific configs.
Now that, I don't have a Tegra2 Harmony Board, but interested in Xen on Tegra 2 Board with Cortex-A9 arch.

How can I use it on qemu-system-arm?

vmlinux(.out0) is available from the make in the paravirtualized kernel source.
vmlinux.out1 is available in the rootfs_dom0 in the images directory.

But, If it is to be run on qemu-system-arm, then rootfs has to be in .img or .img.gz format [ i think ].

Is there any other way to run this on qemu-system-arm?

Will it be possible / Was it done before?

Please Suggest!

--

✉ Regards :: Krishna Pavan ✍

post4pavan at gmail

Mar 9, 2012, 12:33 AM

Post #5 of 8 (720 views)
Permalink

Re: Para-virtualized linux kernel release for the Tegra2 harmony board. [In reply to]

Hi Xen-ARM,

I only have xen.bin, and vmlinux {uncompressed kernel} [46.7 MB] in the
para virtualised linux source code directory, made for arm.
I am thinking how, I should do that with just these both, on
qemu-system-arm.

rootfs contains domU, then we need the rootfs also.

vmlinux is a different format, as shown here
http://en.wikipedia.org/wiki/Vmlinux
I know how to work ONLY with zImage on qemu.

Do you have any idea?

After many hours of googling, I could find some what explanation here

Link to External Site ::
http://mmmyddd.freeshell.net/wiki/embed/linuxonarmonqemu.html

Please Kindly Suggest!
--
✉ Regards :: Krishna Pavan ✍

jm77.ryu at samsung

Mar 9, 2012, 2:09 AM

Post #6 of 8 (719 views)
Permalink

Re: Para-virtualized linux kernel release for the Tegra2 harmony board. [In reply to]

>> I only have xen.bin, and vmlinux {uncompressed kernel} [46.7 MB] in the para virtualised linux source code directory, made for arm.
>> I am thinking how, I should do that with just these both, on qemu-system-arm.
>>
>> rootfs contains domU, then we need the rootfs also.
>>
>> vmlinux is a different format, as shown here http://en.wikipedia.org/wiki/Vmlinux
>> I know how to work ONLY with zImage on qemu.
>>
>> Do you have any idea?

What about referencing android-emulator-xen to extend your qemu-system-arm to support ELF format?
It has ability to handle elf-type images for guest O/S.

>> After many hours of googling, I could find some what explanation here
>>
>> Link to External Site :: http://mmmyddd.freeshell.net/wiki/embed/linuxonarmonqemu.html

------- Original Message -------
Sender : Krishna Pavan<post4pavan [at] gmail>
Date : 2012-03-09 17:33 (GMT+09:00)
Title : Re: [XenARM] Para-virtualized linux kernel release for the Tegra2 harmony board.

Hi Xen-ARM,

I only have xen.bin, and vmlinux {uncompressed kernel} [46.7 MB] in the para virtualised linux source code directory, made for arm.
I am thinking how, I should do that with just these both, on qemu-system-arm.

rootfs contains domU, then we need the rootfs also.

vmlinux is a different format, as shown here http://en.wikipedia.org/wiki/Vmlinux
I know how to work ONLY with zImage on qemu.

Do you have any idea?

After many hours of googling, I could find some what explanation here

Link to External Site :: http://mmmyddd.freeshell.net/wiki/embed/linuxonarmonqemu.html

Please Kindly Suggest!
--

✉ Regards :: Krishna Pavan ✍
_______________________________________________
Xen-arm mailing list
Xen-arm [at] lists
http://lists.xen.org/cgi-bin/mailman/listinfo/xen-arm

post4pavan at gmail

Mar 9, 2012, 2:29 AM

Post #7 of 8 (739 views)
Permalink

Re: Para-virtualized linux kernel release for the Tegra2 harmony board. [In reply to]

Hi Xen-ARM, Jae Min Ryu,
Thank You for the reply.

What about referencing android-emulator-xen to extend your qemu-system-arm
to support ELF format?
It has ability to handle elf-type images for guest O/S.

That android_emulator_for_xen-arm ended up with a gdb error.
I am unlucky to work on a X86_64 PC.

That particular emulator requires a X86_32 PC.
I have that code, compiled and it took me two working days to find out what
went wrong with it.

Later on I figured out that, it is the error.

*Error_log *is some thing like,
guest0 - mini-os.elf
guest1 - mini-os.elf
Waiting gdb connection on port 1234
./run.sh: line 1: 10113 Segmentation fault ./emulator -guest0
0x01c00000 mini-os.elf -guest1 0x02c00000 mini-os.elf -show-kernel -system
./images -shell -qemu -s
I tried this with the mini-os guests running.
--
✉ Regards :: Krishna Pavan ✍

post4pavan at gmail

May 18, 2012, 6:36 AM

Post #8 of 8 (577 views)
Permalink

Re: Para-virtualized linux kernel release for the Tegra2 harmony board. [In reply to]

Hi,

Following are some of the instructions given by Jae-Min-Ryu.
However, you need to find and place proper links with in the linux-xen
source code.

There have been some issues with the mode bits for some files in the
linux-xen source code.

Hope, these issues, which I have found [.others have found many and you may
probably need to check previous threads], when I worked on those particular
source codes, will help you.

It would be better to post a new mail, if it's not found in google search,
rather than top-posting, as it may disturb the flow, if some one browses
the lists next time.

Regards :: Krishna Pavan

On Wed, Feb 8, 2012 at 6:42 AM, Jae-Min Ryu wrote:

> We have release a reference code for a para-virtualized linux kernel.
>
>
> You will find it on "git://xenbits.xen.org/people/jm77ryu/linux-xen.git"
>
> In case of xen-arm source, please visit to "git://
> xenbits.xen.org/people/jm77ryu/xen-arm.git"
>
>
> - Build Instructions: -
>
> 1. extract root filesytem contents as following(This requires the root
> privilege)
> sudo tar -xvpf rootfs_dom0.tar.bz2
>
> 2. cp config_dom0 .config
>
> 3. make ARCH=arm
>
> ** Turn on target board, and download the xen-arm image(xen) and the
> kernel image(vmlinux.out0).
> ** download addresse is :
> ***** xen-arm : 0x8000
> ***** guest kernel images : 0x1e800000
>
> - booting domu -
>
> ** To boot domu (the rootfilesystem of dom0 already has prebuilt domu
> kernel images, see images directory.)
> # smd start <- start lightweight
> # vm create /etc/xen/dom1
> # xenconsole 1 <= This command switch console to dom 1.
>
> * For domu build, use config_domu configuration file.
> * Don't forget to copy the vmlinux.out1 to rootfs_dom0/images directory
> after domu kernel build.
>
>

--
✉ Regards :: Krishna Pavan ✍

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