diff options
| author | Alistair Francis <alistair.francis@wdc.com> | 2021-05-04 08:34:32 +1000 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2021-06-08 09:59:42 +1000 |
| commit | 6debd840c8fedee6a378b05800d3382864e3564d (patch) | |
| tree | cc18dd430b9785f594fb4cc2097993bec7167b8b /docs/system/target-riscv.rst | |
| parent | 719f0f603c2289f438b8d6ef4358d9407b4c2905 (diff) | |
docs/system: Move the RISC-V -bios information to removed
QEMU 5.1 changed the behaviour of the default boot for the RISC-V virt
and sifive_u machines. This patch moves that change from the
deprecated.rst file to the removed-features.rst file and the
target-riscv.rst.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 4f1c261e7f69045ab8bb8926d85fe1d35e48ea5b.1620081256.git.alistair.francis@wdc.com
Diffstat (limited to 'docs/system/target-riscv.rst')
| -rw-r--r-- | docs/system/target-riscv.rst | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/docs/system/target-riscv.rst b/docs/system/target-riscv.rst index 4b3c78382c..a5cc06b726 100644 --- a/docs/system/target-riscv.rst +++ b/docs/system/target-riscv.rst @@ -70,5 +70,16 @@ undocumented; you can get a complete list by running riscv/shakti-c riscv/sifive_u -RISC-V CPU features +RISC-V CPU firmware ------------------- + +When using the ``sifive_u`` or ``virt`` machine there are three different +firmware boot options: +1. ``-bios default`` - This is the default behaviour if no -bios option +is included. This option will load the default OpenSBI firmware automatically. +The firmware is included with the QEMU release and no user interaction is +required. All a user needs to do is specify the kernel they want to boot +with the -kernel option +2. ``-bios none`` - QEMU will not automatically load any firmware. It is up +to the user to load all the images they need. +3. ``-bios <file>`` - Tells QEMU to load the specified file as the firmware. |