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

["Min Xu via groups.io" <min.m.xu=intel.com@groups.io>]

Hi, Gerd
We tried to fix this issue based on your suggested workaround (at Jan 14) but it still hang.
Did we miss something? 
@Qiang, Chenyi Can provide more information.

>Workaround for centos stream 9:
> (1) turn off secure boot (if enabled)
> (2) install latest shim (unsigned):
>     sudo dnf install shim-unsigned-x64
> (3) replace shim on the ESP:
>     sudo cp /usr/share/shim/15.8-2.el9/x64/shimx64.efi /boot/efi/EFI/centos/shimx64.efi


> -----Original Message-----
> From: Ard Biesheuvel <ardb@kernel.org>
> Sent: Tuesday, March 25, 2025 3:48 PM
> To: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Fiona Ebner <f.ebner@proxmox.com>; devel@edk2.groups.io; Xu, Min M
> <min.m.xu@intel.com>; crystallee@ami.com; POLUDOV, FELIX
> <felixp@ami.com>; davidhsieh@ami.com; jameswang@ami.com; Ni, Ray
> <ray.ni@intel.com>; Sun, CepingX <cepingx.sun@intel.com>; Yao, Jiewen
> <jiewen.yao@intel.com>; Tom Lendacky <thomas.lendacky@amd.com>; Ard
> Biesheuvel <ardb+tianocore@kernel.org>
> Subject: Re: [edk2-devel] PR#5939 broke the legacy VM bootup
> 
> On Mon, 24 Mar 2025 at 18:27, Gerd Hoffmann <kraxel@redhat.com> wrote:
> >
> >   Hi,
> >
> > > > The solutions are:
> > > > - disable the EFI memory attributes protocol altogether.
> > >
> > > Is this possible via a build macro/flag? Or alternatively via the
> > > QEMU commandline/fw_cfg?
> >
> > fedora builds are using this downstream:
> > https://github.com/tianocore/edk2/pull/10667
> >
> > > > - ignore the distros so they are forced to clean up their mess.
> > >
> > > Is this the solution the EDK2 project opted for/status quo?
> >
> > It's the status quo.
> >
> 
> Note that EDK2 is the reference implementation of UEFI. OVMF is an outlier
> because it is used in production almost unmodified, but in the general case,
> the reference implementation is used as the basis for production platforms
> shipping in the future. Therefore, it is not the place to put hacks to work
> around nasty issues that the downstream users cannot be bothered to
> address.


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