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Re: Xen XSM/FLASK policy, grub defaults, etc.

Hi Jan,

On 29/05/2020 16:11, Jan Beulich wrote:
On 29.05.2020 17:05, Julien Grall wrote:
On 29/05/2020 15:47, Ian Jackson wrote:
George Dunlap writes ("Re: Xen XSM/FLASK policy, grub defaults, etc."):
Which isn’t to say we shouldn’t do it; but it might be nice to also have an 
intermediate solution that works right now, even if it’s not optimal.

I propose the following behaviour by updste-grub:

   1. Look for an ELF note, TBD.  If it's found, make XSM boot entries.
      (For now, skip this step, since the ELF note is not defined.)

I am afraid the ELF note is a very x86 thing. On Arm, we don't have such
thing for the kernel/xen (actually the final binary is not even an ELF).

Ouch - of course. Is there anything similar one could employ there?

In the past, we discussed about adding support for note in the zImage (arm32 kernel format) but I never got the chance to pursue the discussion.

With Juergen's hypfs series, the hypervisor now embbed the .config. Is it possible to extract it?


Julien Grall



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