mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-09-23 16:11:54 +00:00
915458e148
Add a few links to documents about Verified Boot for Embedded (VBE). These will be expanded as development proceeds. Signed-off-by: Simon Glass <sjg@chromium.org>
26 lines
1.2 KiB
ReStructuredText
26 lines
1.2 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+
|
|
|
|
Verified Boot for Embedded (VBE)
|
|
================================
|
|
|
|
Introduction
|
|
------------
|
|
|
|
VBE provides a standard boot mechanism for embedded systems. If defines
|
|
how firmware and Operating Systems are located, updated and verified.
|
|
|
|
Within U-Boot, one or more VBE bootmeths implement the boot logic. For example,
|
|
the vbe-simple bootmeth handles finding the firmware (e.g. in MMC) and starting
|
|
it. Typically the bootmeth is started up in VPL and controls which SPL and
|
|
U-Boot binaries are loaded.
|
|
|
|
A 'vbe' command provides access to various aspects of VBE's operation, including
|
|
listing methods and getting the status for a method.
|
|
|
|
For a detailed overview of VBE, see vbe-intro_. A fuller description of
|
|
bootflows is at vbe-bootflows_ and the firmware-update mechanism is described at
|
|
vbe-fwupdate_.
|
|
|
|
.. _vbe-intro: https://docs.google.com/document/d/e/2PACX-1vQjXLPWMIyVktaTMf8edHZYDrEvMYD_iNzIj1FgPmKF37fpglAC47Tt5cvPBC5fvTdoK-GA5Zv1wifo/pub
|
|
.. _vbe-bootflows: https://docs.google.com/document/d/e/2PACX-1vR0OzhuyRJQ8kdeOibS3xB1rVFy3J4M_QKTM5-3vPIBNcdvR0W8EXu9ymG-yWfqthzWoM4JUNhqwydN/pub
|
|
.. _vbe-fwupdate: https://docs.google.com/document/d/e/2PACX-1vTnlIL17vVbl6TVoTHWYMED0bme7oHHNk-g5VGxblbPiKIdGDALE1HKId8Go5f0g1eziLsv4h9bocbk/pub
|