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5400c4bc05
This is mostly hidden in the background, but it is sometimes useful to look at it. Add a function to allow this. Signed-off-by: Simon Glass <sjg@chromium.org>
80 lines
1.6 KiB
ReStructuredText
80 lines
1.6 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+
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.. index::
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single: sbi (command)
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sbi command
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===========
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Synopsis
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--------
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::
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sb handoff
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sb map
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sb state
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Description
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-----------
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The *sb* command is used to display information about sandbox's internal
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operation. See :doc:`/arch/sandbox/index` for more information.
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sb handoff
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~~~~~~~~~~
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This shows information about any handoff information received from SPL. If
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U-Boot is started from an SPL build, it shows a valid magic number.
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sb map
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~~~~~~
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This shows any mappings between sandbox's emulated RAM and the underlying host
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address-space.
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Fields shown are:
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Addr
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Address in emulated RAM
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Mapping
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Equivalent address in the host address-space. While sandbox requests address
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``0x10000000`` from the OS, this is not always available.
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Refcnt
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Shows the number of references to this mapping.
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sb state
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~~~~~~~~
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This shows basic information about the sandbox state, currently just the
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command-line with which sandbox was started.
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Example
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-------
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This shows checking for the presence of SPL-handoff information. For this to
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work, ``u-boot-spl`` must be run, with build that enables ``CONFIG_SPL``, such
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as ``sandbox_spl``::
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=> sb handoff
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SPL handoff magic 14f93c7b
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This shows output from the *sb map* subcommand, with a single mapping::
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Sandbox memory-mapping
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Addr Mapping Refcnt
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ff000000 000056185b46d6d0 2
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This shows output from the *sb state* subcommand::
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=> sb state
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Arguments:
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/tmp/b/sandbox/u-boot -D
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Configuration
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-------------
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The *sb handoff* command is only supported if CONFIG_HANDOFF is enabled.
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