Re: [edk2-devel] PR#5939 broke the legacy VM bootup

["Crystal Lee via groups.io" <CrystalLee=ami.com@groups.io>]

Hi Min,

We have the same issue with Ubuntu 22.04.04 after loading shim, Ubuntu 22.04.5(using shim 15.8) has fixed the issue.

Thanks,
Crystal
-----Original Message-----
From: Ard Biesheuvel <ardb@kernel.org>
Sent: Tuesday, January 14, 2025 4:35 PM
To: Xu, Min M <min.m.xu@intel.com>
Cc: devel@edk2.groups.io; Crystal Lee (李怡萱) <CrystalLee@ami.com>; Felix Polyudov <Felixp@ami.com>; David Hsieh (謝坤智) <DavidHsieh@ami.com>; James Wang (王家明) <JamesWang@ami.com>; Ni, Ray <ray.ni@intel.com>; Sun, CepingX <cepingx.sun@intel.com>; Yao, Jiewen <jiewen.yao@intel.com>; Gerd Hoffmann <kraxel@redhat.com>; Tom Lendacky <thomas.lendacky@amd.com>; Ard Biesheuvel <ardb+tianocore@kernel.org>.
Subject: [EXTERNAL] Re: PR#5939 broke the legacy VM bootup


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On Tue, 14 Jan 2025 at 09:31, Xu, Min M <min.m.xu@intel.com> wrote:
>
> On Tuesday, January 14, 2025 4:22 PM, Ard Biesheuvel wrote:
> >
> > On Tue, 14 Jan 2025 at 03:54, Xu, Min M <min.m.xu@intel.com> wrote:
> > >
> > > Hi, Crystal
> > >
> > > PR#5939
> > > (https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%252
> > > Fgithub.com%2Ftianocore%2Fedk2%2Fpull%2F5939&data=05%7C02%7Ccrysta
> > > llee%40ami.com%7C953a53f4b7ed44f018c008dd34766aab%7C27e97857e15f48
> > > 6cb58e86c2b3040f93%7C1%7C0%7C638724405414190413%7CUnknown%7CTWFpbG
> > > Zsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIs
> > > IkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=FQomYihkLvcY9d
> > > jL%2BQmI0by2vmbQkDfodjny3MOexVY%3D&reserved=0) was merged
> > > yesterday
> > but it seems it broke the legacy VM bootup.
> > >
> > >
> > >
> > > Below is the crash log of the failure.
> > >
> >
> > I take it this crash occurs after loading shim?
>
> That's right. It seems in the EDK2 CI, there are only cases of "run to shell". So it is not triggered in CI test.
>

This is a long standing bug in shim, that has been fixed 2 years ago [0] but the distros keep shipping outdated versions, due to the reluctance of MS to sign new shim builds.

The solutions are:
- disable the EFI memory attributes protocol altogether.
- ignore the distros so they are forced to clean up their mess.



[0] https://github.com/rhboot/shim/commit/c7b305152802c8db688605654f75e1195def9fd6
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