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[PATCH] xen-3.0.2-2 and nv-1.0-8756

Hi!

I created a set of patches for xen-3.0.2-2 and nv-1.0-8756 based
on the patches/discussion at:

http://www.nvnews.net/vbulletin/showthread.php?t=66383

The patches have been successfully tested on Fedora Core 4
using an Athlon AMD64 X2 4400+ and two GeForce 7800GTX
graphics cards (triple head setup). However, i experienced a
small performance drop when running glxgears (~14000FPS
instead of (~16000FPS).

You may like to try the following instructions to get things going
on your system:

1. Create a working directory and put both nvidia xen patches into
the archive directory:

Code:

mkdir -p /usr/local/xen/archive

cp <path to patch>/patch-2.6-xen-sparse-nv /usr/local/xen/archive

cp <path to patch>/patch-nv-1.0-8756-xen-3.0.2-2 /usr/local/xen/archive

2. Download the xen source package and the vanilla linux kernel tree:

Code:

cd /usr/local/xen/archive

wget http://bits.xensource.com/Xen/latest/xen-3.0.2-src.tgz

wget ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-2.6.16.tar.bz2

wget http://bits.xensource.com/Xen/latest/xen-3.0-x86_32-fc4.bin.tar

3. Prepare the xen0 kernel build:

Code:

cd /usr/local/xen

tar -xzf archive/xen-3.0.2-src.tgz

cd xen-3.0.2-2

ln -s ../archive/linux-2.6.16.tar.bz2 .

4. Patch the kernel sparse directory:

Code:

cd /usr/local/xen/xen-3.0.2-2/linux-2.6-xen-sparse

patch -p1 < /usr/local/xen/archive/patch-2.6-xen-sparse-nv

5. Build the xen0 kernel:

Code:

cd /usr/local/xen/xen-3.0.2-2

make kernels

6. Install the kernel, modules and related files:

Code:

cd /usr/local/xen/xen-3.0.2-2/linux-2.6.16-xen

cp vmlinuz /boot/vmlinuz-2.6.16-xen

cp System.map /boot/System.map-2.6.16-xen

cp .config /boot/config-2.6.16-xen

make modules_install

mkinitrd /boot/initrd-2.6.16-xen.img 2.6.16-xen

7. Create a menu option for the grub bootloader in /boot/grub/menu.lst:

Code:

title Xen 3.0 / XenLinux 2.6.16

       kernel /boot/xen-3.0.2-2.gz console=vga

       module /boot/vmlinuz-2.6.16-xen root=<root-dev> ro console=tty0

       module /boot/initrd-2.6.16-xen.img

8. Patch and compile the nvidia kernel module:

Code:

cd /usr/local/xen

cp -r <nvidia sources> nv-1.0-8756-xen-3.0.2-2

cd nv-1.0-8756-xen-3.0.2-2

patch -p1 < /usr/local/xen/archive/patch-nv-1.0-8756-xen-3.0.2-2

make clean

make SYSSRC=/usr/local/xen/xen-3.0.2-2/linux-2.6.16-xen module

9. Install the nvidia kernel module

Code:

cd /usr/local/xen/nv-1.0-8756-xen-3.0.2-2

mkdir -p /lib/modules/2.6.16-xen/kernel/drivers/video

cp nvidia.ko /lib/modules/2.6.16-xen/kernel/drivers/video

depmod -a 2.6.16-xen

10. Install the xen base and tools package:

Code:

yum install bridge-utils

cd /usr/local/xen

tar -xf /usr/local/xen/archive/xen-3.0-x86_32-fc4.bin.tar

cd xen-3.0-x86_32-fc4.bin

rpm -i xen-3.0.2.2-86.1_fc4.i386.rpm

Now reboot your system.

Feedback appreciated!

Bernhard

Re: [PATCH] xen-3.0.2-2 and nv-1.0-8756

Thanks for posting this mate! However, have you had a chance to try this using the prepackaged Xen kernel shipped w/ FC5? I'm having trouble getting vanilla 8756 to compile against FC5xen0 (see my thread here) ... is there a variant of your procedure I could try for FC5xen0?

cheers.

Re: [PATCH] xen-3.0.2-2 and nv-1.0-8756

Quote:

Originally Posted by metagroboliser

have you had a chance to try this using the prepackaged Xen kernel shipped w/ FC5?

The situation is the pre-packaged xen0 kernels typically do not export
some symbols required for the nvidia kernel module - so i didn't even tried ...

The instructions given above should also work for FC5, except
step 10 - you may try if the xen-3.0.1 tools provided by FC5 are
working. Otherwise, you need to install xen.gz and the tools from
the source package.

regards

Bernhard

Re: [PATCH] xen-3.0.2-2 and nv-1.0-8756

Quote:

Originally Posted by metagroboliser

have you had a chance to try this using the prepackaged Xen kernel shipped w/ FC5?

Please find nvidia kernel driver installation instruction for prepackaged Xen kernels at:

http://www.nvnews.net/vbulletin/showthread.php?t=68703

regards

Bernhard

Re: [PATCH] xen-3.0.2-2 and nv-1.0-8756

Edit: Ok, I was a total n00b and didn't read the stickies first, sorry. I'm gonna try that first, and then come back to this.

Hi.

I'm fairly (ok, completely) new to Linux, and after installing the Fedora Core 5 distribution today, I've been trying my damndest to make my GeForce 4 Go 64mb card with it.

I've tried following these steps, but I got stuck once I hit step 6. Apparently there's no vmlinuz-2.6.16-xen file, so I can't go past it.

For some context:

Computer: HP Pavilion ZV5000
Distribution: Fedora Core 5
Video Adapter: GeForce 4 Go 64mb

I also never updated the distribution after installing, I dunno if that might have something to do with it.

Any tips?

Thanks in advance.

Re: [PATCH] xen-3.0.2-2 and nv-1.0-8756

Hi everybody,

I managed it to run nv-1.0-8756 with SuSE 10.1 and 2.6.16.21-0.13-xen and xen 3.0.2
(Method: http://www.nvnews.net/vbulletin/showthread.php?t=68703)

The NVIDIA driver is using the TLS-support. How can I avoid the following message:

Code:

NVRM: loading NVIDIA Linux x86 Kernel Module  1.0-8762  Mon May 15 13:06:38 PDT 2006

NVRM: builtin PAT support disabled, falling back to MTRRs.

agpgart: Found an AGP 3.0 compliant device at 0000:00:00.0.

agpgart: Putting AGP V3 device at 0000:00:00.0 into 8x mode

agpgart: SiS delay workaround: giving bridge time to recover.

agpgart: Putting AGP V3 device at 0000:01:00.0 into 8x mode

  ***************************************************************

  ** WARNING: Currently emulating unsupported memory accesses  **

  **          in /lib/tls glibc libraries. The emulation is    **

  **          slow. To ensure full performance you should      **

  **          install a 'xen-friendly' (nosegneg) version of   **

  **          the library, or disable tls support by executing **

  **          the following as root:                           **

  **          mv /lib/tls /lib/tls.disabled                    **

  ** Offending process: X (pid=26855)                          **

  ***************************************************************

Continuing...

mtrr: reg: 2 has count=0

The X-Server is not starting if /usr/lib/tls is renamed to /usr/lib/tls.disabled

Code:

peedy:/usr/lib> ls -ld tls tls/*

drwxr-xr-x 2 root root 4096 2006-07-21 19:35 tls

lrwxrwxrwx 1 root root   25 2006-08-12 14:59 tls/libnvidia-tls.so.1 -> libnvidia-tls.so.1.0.8762

-rwxr-xr-x 1 root root 2324 2006-07-21 19:35 tls/libnvidia-tls.so.1.0.8762

peedy:/usr/lib>

I suppose the driver nv-1.0-8756 just runs with tls and there is no way to avoid
this for xen ?
Does FC5 use tls in combination with xen ?

Best regards,

Christian

Re: [PATCH] xen-3.0.2-2 and nv-1.0-8756

Quote:

Originally Posted by haveaniceday

I managed it to run nv-1.0-8756 with SuSE 10.1 and 2.6.16.21-0.13-xen and xen 3.0.2
(Method: http://www.nvnews.net/vbulletin/showthread.php?t=68703)

BTW.: recent FC5 xen kernels do not any more require to manually
link the nvidia kernel module - the symbols in question seem now
to be exported non-GPL. (but the source patch itself is still required).

Quote:

Originally Posted by haveaniceday

The NVIDIA driver is using the TLS-support. How can I avoid the following message:

IIRC i also get these messages, but X starts fine for me.
Could you please provide an nvidia bug report for details?

regards

Bernhard

Re: [PATCH] xen-3.0.2-2 and nv-1.0-8756

Quote:

Originally Posted by JaXXoN

Could you please provide an nvidia bug report for details?

Hi Bernhard,

I think an nvidia bug report is not required. The driver itself is working. I just
looked for a way to avoid the "TLS"

So there is no analysis required.

Best regards,

Christian

PS: A small script for the "SuSE 10.1" fans.
- boot the xen kernel
- run the commands below
- reboot
- use regular sax2-configuration

Code:

NVIDIA=NVIDIA-Linux-x86-1.0-8762-pkg1.run

KERNEL=2.6.16.21-0.13-xen

PATCH=patch-nv-1.0-8756-xen-3.0.2-2.txt



cd /usr/src

if [ ! -r $NVIDIA ]

then

        echo "Please put $NVIDIA to /usr/src/"

        exit 1

fi



if [ ! -r $PATCH ]

then

        echo "Please put patch $PATCH to /usr/src/"

        exit

fi



cd /usr/src/linux

make cloneconfig

make modules_prepare

cd ..



sh ./$NVIDIA -x



NVIDIADIR=$

cd /usr/src/${NVIDIA//.run}/usr/src/nv



patch -p1 < /usr/src/$PATCH

make clean

make SYSSRC=/usr/src/linux module



XEN_TLB_FLUSH=`grep [^_]xen_tlb_flush$ /boot/System.map-$KERNEL | colrm 9`

FORCE_EVTCHN_CALLBACK=`grep [^_]force_evtchn_callback$ /boot/System.map-$KERNEL | colrm 9`

XEN_FEATURES=`grep [^_]xen_features$ /boot/System.map-$KERNEL | colrm 9`

set -x

ld -m elf_i386 --defsym xen_tlb_flush=0x${XEN_TLB_FLUSH} --defsym xen_features=0x${XEN_FEATURES} --defsym force_evtchn_callback=0x${FORCE_EVTCHN_CALLBACK} -r -o nvidia.ko nvidia.o nvidia.mod.o

cp nvidia.ko /lib/modules/$KERNEL/kernel/drivers/video/nvidia.ko

depmod -a

Re: [PATCH] xen-3.0.2-2 and nv-1.0-8756

Quote:

Originally Posted by haveaniceday

I think an nvidia bug report is not required. The driver itself is working. I just
looked for a way to avoid the "TLS"

Sorry for the missanderstanding, what i meant is: disable TLS
(rename the directory), then start X (which will fail as far as
i understood) and generate the bug report.

regards

Bernhard

Re: [PATCH] xen-3.0.2-2 and nv-1.0-8756

The log just show an interrupt after GLX is loaded.

libglx.so.1.0.8762 is using libnvidia-tls.so.1 . So the only solution will be a
change from NVIDIA. May be they can offer a "tls-free" library for xen systems.

Best regards,

Christian

Re: [PATCH] xen-3.0.2-2 and nv-1.0-8756

What about the new Xen 3.0.3?
Until now I couldn't find any way to get it work ..
I've nvidia Geforce 6600 , 256 MB ... running Xen 3.0.3 on ubuntu drapper ...
my monitor is Sony G220-R ..
Isn't there any way to get the X working correctly on it?
Won't the new driver which is still beta now be compatible with Xen?

Re: [PATCH] xen-3.0.2-2 and nv-1.0-8756