[docs,qemu] Add QEMU OT documentation #28553
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jwnrt
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ziuziakowska
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Oct 28, 2025
To allow for more general OpenTitan QEMU documentation, move the current setup / build system documentation to its own separate `setup.md` page. Make a new general QEMU `README.md` containing documentation not specific to setup / using a local build override. Signed-off-by: Alex Jones <[email protected]>
Add the new `bootstrap` parameter to the existing documentation, and also add a link to better explain the `traces` parameter. Signed-off-by: Alex Jones <[email protected]>
Now that we're adding more centralized OpenTitan QEMU documentation, document the newly support command-line argument format here. Signed-off-by: Alex Jones <[email protected]>
Add a short section on the QEMU tessting documentation that describes how the QEMU UART console output and log output are muxed into stdout without line buffering, to avoid confusion about interleaving of characters from both inputs. Signed-off-by: Alex Jones <[email protected]>
Add some introductory documentation to explain QEMU, it's integration into OpenTitan itself, and caveats that users should be aware of. The focus of these docs are primarily on introducing the basic concepts of QEMU, explaining the integration with OpenTitan, and noting any caveats that are useful to be aware of when testing or developing software stacks. Where possible, detailed explanations of QEMU's internals or explanations of how OpenTitan emulation works is delegated to the existing QEMU / QEMU fork documentation, to avoid replication and docs getting out of date. The one exception is the list of unemulated features - a short non-comprehensive list is reproduced as it is probably useful that anyone who wants to use QEMU is aware of some of the major caveats, even if the list is not complete / comprehensive. Signed-off-by: Alex Jones <[email protected]>
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Move some of the existing QEMU documentation, and add much more. This aims to be some short introductory documentation (deferring to upstream QEMU docs where necessary), explanations of many key caveats found during development & integration to be aware of, and more comprehensive documentation on the different Bazel parameters and arguments that are available.
See the commit messages for more details.