Thank you for the information. I apologize for posting twice to the mailing 
list on the same issue. I was just trying to add some additional information.

Could you tell me how to edit the Kbuild file for this purpose? I can also 
recompile my kernel, but that's a bit more difficult.

Thanks in advance,
Sterling Windmill

----- Original Message ----- 
From: "Sheng Yang" <[EMAIL PROTECTED]> 
To: "Sterling Windmill" <[EMAIL PROTECTED]> 
Cc: "kvm" <[email protected]> 
Sent: Monday, September 29, 2008 10:21:10 AM GMT -05:00 US/Canada Eastern 
Subject: Re: installing kvm-76 on 2.6.24 

On Mon, Sep 29, 2008 at 1:09 PM, Sterling Windmill <[EMAIL PROTECTED]> wrote: 
> I am running a custom compiled 2.6.24 kernel on a 64-bit Intel system and had 
> no issues compling and running kvm-75. 
> 
> I downloaded kvm-76 and compiled and installed it, but I cannot get the 
> modules to load properly. 
> 
> I have temporarily gone back to kvm-75. 
> 
> I am seeing this output in dmesg: 
> 
> kvm: Unknown symbol kvm_iommu_map_pages 
> kvm: Unknown symbol kvm_iommu_map_guest 
> kvm: Unknown symbol kvm_iommu_unmap_guest 

Seems you enabled CONFIG_DMAR in host kernel side? In theory, we 
should use CONFIG_DMAR with newly VT-d support in KVM, but the problem 
now is that userspace including compile option is not ready, so here 
comes compile problem. 

If you want to try kvm-76, you may try to disable CONFIG_DMAR in host 
kernel. Or just wait to userspace VT-d support merge (of course you 
can add vtd.c manually in Kbuild to overcome this compile issue). :) 

-- 
regards, 
Yang, Sheng 
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