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author | Simon Glass <sjg@chromium.org> | 2023-09-01 12:08:23 -0600 |
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committer | Bin Meng <bmeng@tinylab.org> | 2023-09-22 06:03:46 +0800 |
commit | 9804e572cf1ade7a0aae000740e6159a1e5394fd (patch) | |
tree | 65248720f3da8d1ba7128dc5ee88815a2075a967 | |
parent | b95bc64b06a1ec1786d9c82d3041c63ca1b4e147 (diff) | |
download | u-boot-9804e572cf1ade7a0aae000740e6159a1e5394fd.zip u-boot-9804e572cf1ade7a0aae000740e6159a1e5394fd.tar.gz u-boot-9804e572cf1ade7a0aae000740e6159a1e5394fd.tar.bz2 |
x86: doc: Document the -cdrom issues I ran into
Add a note about using -cdrom with QEMU.
Suggested-by: Bin Meng <bmeng@tinylab.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
-rw-r--r-- | doc/board/emulation/qemu-x86.rst | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/doc/board/emulation/qemu-x86.rst b/doc/board/emulation/qemu-x86.rst index 15f56b6..c604e42 100644 --- a/doc/board/emulation/qemu-x86.rst +++ b/doc/board/emulation/qemu-x86.rst @@ -193,6 +193,9 @@ Linux is selected from grub, e.g. with `debian-12.1.0-i386-netinst.iso`:: The bochs video driver also seems to cause problems before the OS is able to show a display. +The QEMU `-cdrom` option is intended to work with the original ISO-format +images, not the recently invented ISOHybrid image. + Finally, the use of `-M accel=kvm` is intended to use the native CPU's virtual-machine features to accelerate operation, but this causes U-Boot to hang when jumping 64-bit mode, at least on AMD machines. This may be a bug in U-Boot |