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SubjectRe: UEFI Secure boot using qemu-kvm
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On Wed, 2012-06-27 at 19:15 +0100, Matthew Garrett wrote:
> On Wed, Jun 27, 2012 at 06:34:05PM +0100, James Bottomley wrote:
>
> > The purpose of this email is to widen the pool of people who are playing
> > with UEFI Secure boot. The Linux Foundation Technical Advisory Board
> > have been looking into this because it turns out to be rather difficult
> > to lay your hands on real UEFI Secure Boot enabled hardware.
>
> http://tunnelmountain.net/ is the canonical source, but I believe that
> these are now out of stock and waiting for Intel to finish the
> firmware for the replacement.
>
> > The current state is that I've managed to lock down the secure boot
> > virtual platform with my own PK and KEK and verified that I can generate
> > signed efi binaries that will run on it (and that it will refuse to run
> > unsigned efi binaries). Finally I've demonstrated that I can sign
> > elilo.efi (this has to be built specially because of the bug in gnu-efi)
> > and have it boot an unsigned linux kernel when the platform is in secure
> > mode (I've booted up to an initrd root prompt).
>
> It's probably worth noting that booting unsigned kernels violates the
> expectations of various vendors
> (http://msdn.microsoft.com/en-us/library/windows/desktop/hh848062%28v=vs.85%29.aspx
> would be unnecessary if you're supporting unsigned kernels, for
> example). There's no public cross-vendor guidance on this, but I'm
> trying to get that rectified.
>
> As well as sbsign there's also https://github.com/vathpela/pesign for
> anyone stuck relying on nss rather than openssl for awkward regulatory
> reasons.

I've tried to build pesign, but I have huge problems with the make
process; how did you build it?

However, sbsign (with four extra patches I've sent to Jeremy) seems to
be built and working.

James




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