Nvidia support for Xen

[meskalamdug]

Originally Posted by LewC

xen supports using external devices so you can direct access the device(s) including graphics cards as the video shows, follow the youtube link to his blog and take his software specs down then follow this (he buried it deep within a forum archive the spaz)

this is not a comprehensive guide however it should work with a little common sense

Fantastic...someone want to try it?


p.s=i want to try it..but no intel motherboard
and no intel cpu...with amd and asus
this solution will work?

[gilboa]

Originally Posted by meskalamdug

Fantastic...someone want to try it?


p.s=i want to try it..but no intel motherboard
and no intel cpu...with amd and asus
this solution will work?

Xen is hardware agnostic.

- Gilboa

[AireTamStrm]

Originally Posted by meskalamdug

Fantastic...someone want to try it?


p.s=i want to try it..but no intel motherboard
and no intel cpu...with amd and asus
this solution will work?

I just built a new dual Xeon server system with IOMMU / Intel VT-d. Does Xen currently support these features?

[MikeC]

Originally Posted by ricercar

And since programmer Viet Tam moved from NVIDIA to VMware, here's already cross-pollination going on....

LOL.

I recall that Viet Tam sent me a personal email may years ago in regards to running dual displays under Windows 2000. Definately an extremely intelligent software engineer.

I just thought it was funny that the term "cross-pollination" was used in your post.



Carry on please.

PS: I do have great respect for the Linux support personnel that NVIDIA provides in these forums. Unfortunately, "Linux" seems to be fragmented these days with all the various distributions that are available.

[meskalamdug]

Some news.
Xen 4.0.0 is coming(rc2 atm)

"This does seem to work for basic cards, ie Intel and some ATI but not NVIDIA Cards as they still need the
pBAR=vBAR patches."

http://article.gmane.org/gmane.comp....en.devel/76906
http://wiki.xensource.com/xenwiki/XenUpdate20100115

[meskalamdug]

http://www.servwise.com/blog-paul/in...vidia-drivers/

Xen seems to be working
but only < 190

[phil@elrepo]

For RHEL5/CentOS5 with Xen:

http://wiki.centos.org/HowTos/Xen/NvidiaWithXen

[meskalamdug]

Originally Posted by phil@elrepo

For RHEL5/CentOS5 with Xen:

http://wiki.centos.org/HowTos/Xen/NvidiaWithXen

Very good.
Only kernel is a little old..
will work with newest kernels?
2.6.33..or pv git kernel?

[phil@elrepo]

Originally Posted by meskalamdug

Very good.
Only kernel is a little old..
will work with newest kernels?
2.6.33..or pv git kernel?

CentOS5 is based on RHEL5.

The kernel version number is somewhat irrelevant in RHEL as Red Hat backports updates to a stable kernel ABI over the life of the product. So no, it's not really old, it's totally current in Red Hat's world - there was an update last week, and next week will see the release of RHEL5.5 which brings even more backported features and driver updates.

I have no idea if that method works with the latest mainline kernel releases - you'd have to ask the Fedora crowd - I was just passing on the information

[meskalamdug]

I have tried with latest nvidia driver
and kernel 2.6.33(+xen patches)
kernel compile ok...
boot ok...
nvidia driver compile ok...
but when i do modprobe nvidia...
kernel: nvidia: Unknown symbol init_mm

[Armedblade]

Originally Posted by meskalamdug

I have tried with latest nvidia driver
and kernel 2.6.33(+xen patches)
kernel compile ok...
boot ok...
nvidia driver compile ok...
but when i do modprobe nvidia...
kernel: nvidia: Unknown symbol init_mm

Did you figure out anything on this? I decided to try 2.6.32.12+xen patches because there was no chance of getting it to work on pvops.

[Armedblade]

running 2.6.31.12 + rebased suse patches

The gist of the issue: in nv-linux.h there is a call to a deprecated pgd_offset_k() function which is pulling in the init_mm symbol. I'm not a C coder though. If this call is only needed for older kernels I think an #ifdef thereabouts may provide a decent fix. I have no idea though. I just deleted the call, recompiled and the module inserted fine. I've been running Xorg for a little while, glxgears works, no real testing though.

$ glxinfo | grep -i rend
direct rendering: Yes
OpenGL renderer string: GeForce 8800 GTS 512/PCI/SSE2
GL_NV_conditional_render, GL_NV_copy_depth_to_color, GL_NV_copy_image,
GL_NVX_conditional_render, GL_NVX_gpu_memory_info,

$ sudo xm list
Name ID Mem VCPUs State Time(s)
Domain-0 0 3896 8 r----- 281.2