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doc: update optional arguments for passthrough devices #8713

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4 changes: 4 additions & 0 deletions doc/user-guides/acrn-dm-parameters.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -542,6 +542,10 @@ arguments:
capability. The specific virtual bar will be allocated.
* ``enable_ptm``: enable PCIe precise time measurement mechanism for the
passthrough device.
* ``irq=<irq_number>``: when the passthrough PCI devices support legacy interrupt,
e.g. UART, SDIO controller, ``irq_number`` shall be specified.
* ``dsdt=<dsdt_file_dir>``: when the passthrough PCI devices support legacy interrupt
and customized ``dsdt_file`` are needed , e.g. SPI, ``dsdt_file_dir`` shall be specified.

* - ``uart``
- Emulated PCI UART. Use the parameter with the format
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