Re: [RFC] Second attempt at kernel secure boot support

[Jiri Kosina]

On Fri, 2 Nov 2012, Vivek Goyal wrote:

> > With secure boot enabled, then the kernel should refuse to let an
> > unsigned kexec load new images, and kexec itself should refuse to
> > load unsigned images.
> 
> Yep, good in theory. Now that basically means reimplementing kexec-tools
> in kernel. 

Why is "when kernel has been securely booted, the in-kernel kexec 
mechanism has to verify the signature of the supplied image before 
kexecing it" not enough? (basically the same thing we are doing for signed 
modules already).

-- 
Jiri Kosina
SUSE Labs
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