Re: [PATCH] efi: bump efistub version from 1.1 to 3.0 for VZLinuxBootLoader compatibility

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> > > On x86, it incorporates a BIOS style loader that does not implement or expose EFI to the loaded kernel.
> >
> > AFAICS, it does not seem to use real mode BIOS.
> >
>
> I never mentioned real mode, did I?

Sorry, I just misinterpreted "BIOS style loader".

2023年6月3日(土) 7:52 Ard Biesheuvel <ardb@xxxxxxxxxx>:
>
> On Fri, 2 Jun 2023 at 22:30, Akihiro Suda <suda.kyoto@xxxxxxxxx> wrote:
> >
> > > > I'll queue this as a fix, but I'm going to tweak the comment (and the
> > > > commit log) a bit, if you don't mind
> >
> > Thank you for rewriting my comments, but the new comments seem
> > slightly incorrect:
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=36e4fc57fc1619f462e669e939209c45763bc8f5
> >
> > > efi: Bump stub image version for macOS HVF compatibility
> >
> > The commit is about Virtualization.framework, not about
> > Hypervisor.framework (HVF).
> >
> > Virtualization.framework = high-level VMM, similar to QEMU
> > (/usr/bin/qemu-system-*)
> > Hypervisor.framework     = low-level  VMM, similar to kvm.ko
> >
> > > The macOS hypervisor framework includes a host-side VMM called VZLinuxBootLoader
> >
> > VZLinuxBootLoader is a part of Virtualization.framework, not
> > Hypervisor.framework.
> > Also, VZLinuxBootLoader is not a VMM; it is just an API for loading
> > vmlinuz into Virtualization.framework.
> > (similar to the `-kernel` and the `-initrd` flags of QEMU)
> >
>
> Apologies for these mistakes. Unfortunately, this patch has been
> merged now so there is nothing we can do about it.
>
> > > On x86, it incorporates a BIOS style loader that does not implement or expose EFI to the loaded kernel.
> >
> > AFAICS, it does not seem to use real mode BIOS.
> >
>
> I never mentioned real mode, did I?




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