[systemd-devel] systemd hibernator generator does not function on default Fedora install

[poma]

On 24.04.2016 22:31, poma wrote:
> On 20.04.2016 22:42, Chris Murphy wrote:
>> On Wed, Apr 20, 2016 at 1:50 PM, Tobias Hunger <tobias.hunger at gmail.com> wrote:
> 
> [...]
> 
>> Anyway, the most complete solution for BIOS, UEFI, and UEFI Secure
>> Boot systems, is fast startups as possible (which helps all kinds of
>> use cases not just desktops), and then encourage DE's and app makers
>> to support apps that save their own state without users having to
>> manually save files, and default to power off in low battery cases.
>>
>> I guess opensuse has some patches that aren't upstream yet that
>> support signed hibernation images for UEFI Secure Boot?  Maybe there's
>> a way forward at some point. But right now I'm just not seeing it.
>> There's some kind of brick wall in every direction with hibernation.
>>
> 
> :)
> "Lacus Hiemalis Edictum" patch-set actually existed for several years.
> 
> ...
> ] Command line: BOOT_IMAGE=/vmlinuz-4.5.2-321.fc22.x86_64 ... resume=UUID=12345678-7654-5689-8765-432123456789
> ] efi: EFI v2.60 by EDK II
> ] DMI: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
> ] Secure boot enabled
> ...
> ] PM: Checking hibernation image partition UUID=12345678-7654-5689-8765-432123456789
> ] PM: Hibernation image not present or could not be loaded.
> ] systemd[1]: Created slice system-systemd\x2dhibernate\x2dresume.slice.
> ] PM: Hibernation image partition 8:4 present
> ] PM: Looking for hibernation image.
> ] PM: Image not found (code -22)
> ] PM: Hibernation image not present or could not be loaded.
> ...
> ] PM: Hibernation mode set to 'shutdown'
> ] PM: Basic memory bitmaps created
> ] PM: Preallocating image memory... 
> ] PM: Avoid snapshot the page of hibernation key.
> ] done (allocated 136192 pages)
> ] PM: Allocated 544768 kbytes in 0.06 seconds (9079.46 MB/s)
> ] PM: Creating hibernation image:
> ] PM: Avoid snapshot the page of hibernation key.
> ] PM: Need to copy 135752 pages
> ] PM: Normal pages needed: 135752 + 1024, available pages: 245848
> ] PM: Avoid snapshot the page of hibernation key.
>   .....
>   ...
>   .
>   ...
>   .....
> ] PM: Image restored successfully.
> ] PM: Enforce hibernate signature verifying
> ] PM: Signature verifying pass
> ] PM: Restored hibernation keys
> ] PM: Basic memory bitmaps freed
> ] Restarting tasks ... done.
> ...
> 
> Ref.
> Signature verification of hibernate snapshot v2
> https://www.spinics.net/lists/kernel/msg2054106.html
> https://patchwork.kernel.org/project/LKML/list/?page=791 / 790
> v2-01-16-PM-hibernate-define-HMAC-algorithm-and-digest-size-of-hibernation.patch
> ...
> v2-16-16-PM-hibernate-Document-signature-verification-of-hibernate-snapshot.patch
> 
> i.e. unified 0001-Signature-verification-of-hibernate-snapshot-v2.patch
> within kernel 4.5.2-321.fc22.x86_64.
> 
> 

FTR
Support for generating and verifying the signature of a hibernate image; EFI
https://bugzilla.redhat.com/show_bug.cgi?id=1330335