On Mon, Jun 30, 2025 at 07:18:33AM +0200, Heinrich Schuchardt wrote: > Am 30. Juni 2025 02:08:05 MESZ schrieb Marek Vasut <marek.va...@mailbox.org>: > >Add support for jumping to Linux kernel through OpTee-OS on ARMv7a. > >This is only supported if U-Boot runs in PL1 secure. This change adds > >two components, one is fitImage OpTee-OS loadable handler, which makes > >a note of OpTee-OS being loaded and stores the load address for later > >jump to it. The second part is the actual jump to Linux through OpTee-OS. > >The jump through OpTee-OS requires set up of multiple CPU registers, r1 > >and r2 are passed through, r0 and r3 have to be set to 0, lr is set to > >Linux kernel entry point. This setup is done by new assembler function > >boot_jump_linux_via_optee(). > > > >The boot_jump_linux_via_optee() also includes STM32MP13xx late TZC > >configuration write, this cannot be moved easily, hence the ifdef. > > Hello Marek, > > Could you, please, add a documentation change to the series. This would allow > reviewers to test your proposal. > > Furthermore, please, provide tests on QEMU.
Documentation is good, also wiring up this use case for testing in CI via QEMU is a rather large ask. We're still on needing a general boot OS test or two in CI (and Ilias noted either on a call or IRC, I forget now, that there's been some progress on making up a small enough generic OS image to work from). -- Tom
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