Re: [tboot-devel] How to build old kernel with CONFIG_INTEL_TXT

[Wang, S. <sha...@in...>]

Younghwan Go wrote:
>   Hi. I was successful in booting without tboot.gz and the sinit.
> As I was searching, I came upon a site
> "http://lkml.org/lkml/2009/3/31/24" It said that with the patch given
> on the page, kernel 2.6.29 was successful in running tboot.
> So I changed my linux kernel 2.6.30 with the patch given.
> But it seems to not work still.
> Does this patch work with old kernels?

If you can apply the patch without any conflicts, then the kernel can work with the patch.
But I need to tell you, all TXT support doesn't include the only one patch. We pushed some later.

> 
> Also, according to the README, I must write:
> module /vmlinuz.... intel_iommu=on ro root=LABEL=/ rhgb
> console=ttyS0,115200 3
> I have question on whether intel_iommu is right or just iommu is
> right. Thanks.
> 
> Younghwan Go
> 

It is iommu=on.