On Mo, 19.08.24 22:53, Pingfan Liu (piliu@xxxxxxxxxx) wrote: > *** Background *** > > As more PE format kernel images are introduced, it post challenge to kexec to > cope with the new format. > > In my attempt to add support for arm64 zboot image in the kernel [1], > Ard suggested using an emulator to tackle this issue. Last year, when > Jan tried to introduce UKI support in the kernel [2], Ard mentioned the > emulator approach again [3] Hmm, systemd's systemd-stub code tries to load certain "side-car" files placed next to the UKI, via the UEFI file system APIs. What's your intention with the UEFI emulator regarding that? The sidecars are somewhat important, because that's how we parameterize otherwise strictly sealed, immutable UKIs. Hence, what's the story there? implement some form of fs driver (for what fs precisely?) in the emulator too? And regarding tpm? tpms require drivers and i guess at the moment uefi emulator would run those aren't available anymore? but we really should do a separator measurement then. (also there needs to be some way to pass over measurement log of that measurement?) Lennart -- Lennart Poettering, Berlin
