[PATCH 4/6] kexec: A new system call, kexec_file_load, for in kernel kexec

[Matthew Garrett]

On Thu, Nov 21, 2013 at 11:03:50AM -0800, Greg KH wrote:

> This could be done as we do with modules, and just tack the signature
> onto the end of the 'blob' of the image.  That way we could use the same
> tool to sign the binary as we do for modules, and save the need for
> extra parameters in the syscall.

That would require a certain degree of massaging from userspace if we 
want to be able to use the existing Authenticode signatures. Otherwise 
we need to sign kernels twice.

-- 
Matthew Garrett | mjg59 at srcf.ucam.org