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doc: Update qemu-i486

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This PR improves the qemu-i486 documentation.

Signed-off-by: Alan C. Assis <acassis@gmail.com>
This commit is contained in:
Alan Carvalho de Assis
2026-04-28 21:16:32 -03:00
committed by Xiang Xiao
parent 18cd40cd5d
commit 9f2db60370
1 changed files with 43 additions and 0 deletions
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Documentation/platforms/x86/qemu/boards/qemu-i486/index.rst
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@@ -4,3 +4,46 @@ qemu-i486
Port of NuttX to QEMU in i486 mode. This port will also run on real i486 Port of NuttX to QEMU in i486 mode. This port will also run on real i486
hardware (Google the Bifferboard). hardware (Google the Bifferboard).
QEMU
====
QEMU is a generic and open source machine emulator and virtualizer.
QEMU Installation
-----------------
You can install QEMU for x86 on Linux Ubuntu this way::
$ sudo apt install qemu-system-x86
Executing QEMU
--------------
Running QEMU with the generated ``nuttx.elf`` file::
$ qemu-system-i386 -cpu 486 -m 2 -kernel nuttx.elf -nographic
Configuration
=============
Use the default configuration process::
$ ./tools/configure.sh qemu-i486:<configname>
These are the available configurations:
nsh
---
Enables the NuttShell for i486 emulated on QEMU.
After running the QEMU command above with nuttx.elf you will see::
SeaBIOS (version 1.16.3-debian-1.16.3-2)
iPXE (https://ipxe.org) 00:03.0 CA00 PCI2.10 PnP PMM+0018AED0+00000000 CA00
Booting from ROM..
NuttShell (NSH) NuttX-12.13.0
nsh>