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d8c33e1342
Add the 'mmio@' parameter to the document describing all the possible values for 'uart='. This is the command-line argument passed to the hypervisor in order to overwrite and/or set the serial port. Tracked-On: #5820 Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
37 lines
2.1 KiB
ReStructuredText
37 lines
2.1 KiB
ReStructuredText
.. _hv-parameters:
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ACRN Hypervisor Parameters
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##########################
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Generic Hypervisor Parameters
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*****************************
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The ACRN hypervisor supports the following parameter:
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+-----------------+-----------------------------+----------------------------------------------------------------------------------------+
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| Parameter | Value | Description |
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+=================+=============================+========================================================================================+
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| | disabled | This disables the serial port completely. |
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| +-----------------------------+----------------------------------------------------------------------------------------+
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| ``uart=`` | bdf@<BDF value> | This sets the serial port PCI BDF, e.g. ``bdf@0:18.1`` |
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| +-----------------------------+----------------------------------------------------------------------------------------+
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| | port@<port address> | This sets the serial port PIO address, e.g. ``uart=port@0x3F8`` |
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| +-----------------------------+----------------------------------------------------------------------------------------+
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| | mmio@<MMIO address> | This sets the serial port MMIO address, e.g. ``uart=mmio@0xfe040000`` |
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+-----------------+-----------------------------+----------------------------------------------------------------------------------------+
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The Generic hypervisor parameters are specified in the GRUB multiboot/multiboot2 command.
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For example:
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.. code-block:: none
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:emphasize-lines: 5
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menuentry 'Boot ACRN hypervisor from multiboot' {
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insmod part_gpt
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insmod ext2
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echo 'Loading ACRN hypervisor ...'
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multiboot --quirk-modules-after-kernel /boot/acrn.32.out uart=bdf@0:18.1
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module /boot/bzImage Linux_bzImage
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module /boot/bzImage2 Linux_bzImage2
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}
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