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SubjectRe: [PATCH v3] x86, efi: Calling __pa() with an ioremap'd address is invalid
On Mon, Nov 07, 2011 at 01:34:01PM -0800, H. Peter Anvin wrote:
> On 11/07/2011 01:23 PM, Matthew Garrett wrote:
> >
> > I know. But we also have to handle being called after
> > ExitBootServices(). There are going to be people who don't want to deal
> > with signing their kernel builds.
> >
>
> Could you clarify why these two are connected?

You can't execute anything unsigned until after ExitBootServices() has
been called. Otherwise your bootloader is also a malware loader, and
your signature probably gets blacklisted.

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


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