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sandbox: Fix VPL instructions

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Fix the devicetree used with sandbox. This is needed because the
default (full) devicetree must be used by all phases of boot, with
sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Simon Glass 2023-11-19 08:18:07 -07:00 • committed by Heinrich Schuchardt
parent 2f0282922b
commit a6ac50cad5
1 changed files with 47 additions and 3 deletions
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50
doc/arch/sandbox/sandbox.rst
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@ -424,15 +424,59 @@ space. See existing code for examples.
VPL (Verifying Program Loader) VPL (Verifying Program Loader)
------------------------------ ------------------------------
Sandbox provides an example build of vpl called `sandbox_vpl`. This can be run Sandbox provides an example build of vpl called `sandbox_vpl`. To build it:
using::
/path/to/sandbox_vpl/tpl/u-boot-tpl -D .. code-block:: bash
make sandbox_vpl_defconfig all
This can be run using:
.. code-block:: bash
./tpl/u-boot-tpl -d u-boot.dtb
It starts up TPL (first-stage init), then VPL, then runs SPL and finally U-Boot It starts up TPL (first-stage init), then VPL, then runs SPL and finally U-Boot
proper, following the normal flow for a verified boot. At present, no proper, following the normal flow for a verified boot. At present, no
verification is actually implemented. verification is actually implemented.
Here is an example trace::
U-Boot TPL 2024.01-rc2-00129 (Nov 19 2023 - 08:10:12 -0700)
Trying to boot from sandbox_image
Trying to boot from sandbox_file
U-Boot VPL 2024.01-rc2-00129 (Nov 19 2023 - 08:10:12 -0700)
Trying to boot from vbe_simple
Trying to boot from sandbox_image
Trying to boot from sandbox_file
U-Boot SPL 2024.01-rc2-00129 (Nov 19 2023 - 08:10:12 -0700)
Trying to boot from vbe_simple
Trying to boot from sandbox_image
Trying to boot from sandbox_file
U-Boot 2024.01-rc2-00129 (Nov 19 2023 - 08:10:12 -0700)
Reset Status: COLD
Model: sandbox
DRAM: 256 MiB
using memory 0x1b576000-0x1f578000 for malloc()
Warning: host_lo MAC addresses don't match:
Address in ROM is 96:cd:ef:82:78:51
Address in environment is 02:00:11:22:33:44
Core: 103 devices, 51 uclasses, devicetree: board
MMC:
Loading Environment from nowhere... OK
In: serial,cros-ec-keyb,usbkbd
Out: serial,vidconsole
Err: serial,vidconsole
Model: sandbox
Net: eth0: host_lo, eth1: host_enp14s0, eth2: host_eth6, eth3: host_wlp15s0, eth4: host_virbr0, eth5: host_docker0, eth6: eth@10002000
Hit any key to stop autoboot: 1
Debugging the init sequence Debugging the init sequence
--------------------------- ---------------------------