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doc: update configuration tool description of vuarts

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Acrn introduces pci based vuart. Update the existing vuarts and add the
pci based vuart description

1. rename existing vuarts to legacy_vuart
2. add console and communication vuarts general desciption
  - the console vuart is similar to legacy_vuart0 but only contains subtag "base"
  - the communication vuart is similar to legacy_vuart1 but only contains subtags
    "base", "target_vm_id" and "target_uart_id"

Signed-off-by: Yang,Yu-chu <yu-chu.yang@intel.com>
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
This commit is contained in:
Yang,Yu-chu 2020-11-19 10:55:09 -08:00 committed by David Kinder
parent 4a4f97525c
commit 73cd9e939c
1 changed files with 28 additions and 7 deletions
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35
doc/tutorials/acrn_configuration_tool.rst
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@ -110,6 +110,9 @@ Additional scenario XML elements:
``SERIAL_CONSOLE`` (a child node of ``DEBUG_OPTIONS``):
Specify the host serial device is used for hypervisor debugging.
This configuration is valid only if Service VM ``legacy_vuart0``
is enabled. Leave this field empty if Service VM ``console_vuart``
is enabled. Using ``bootargs`` for ``console_vuart`` configuration.
``MEM_LOGLEVEL`` (a child node of ``DEBUG_OPTIONS``):
Specify the default log level in memory.
@ -294,7 +297,7 @@ Additional scenario XML elements:
``bootargs`` (a child node of ``os_config``):
For internal use only and is not configurable. Specify the kernel boot arguments
in bootargs under the parent of board_private.
in ``bootargs`` under the parent of ``board_private``.
``kern_load_addr`` (a child node of ``os_config``):
The loading address in host memory for the VM kernel.
@ -302,27 +305,45 @@ Additional scenario XML elements:
``kern_entry_addr`` (a child node of ``os_config``):
The entry address in host memory for the VM kernel.
``vuart``:
``legacy_vuart``:
Specify the vUART (aka COM) with the vUART ID by its ``id`` attribute.
Refer to :ref:`vuart_config` for detailed vUART settings.
``type`` (a child node of ``vuart``):
``console_vuart``:
Specify the console vUART (aka PCI based vUART) with the vUART ID by
its ``id`` attribute.
Refer to :ref:`vuart_config` for detailed vUART settings.
``communication_vuart``:
Specify the communication vUART (aka PCI based vUART) with the vUART ID by
its ``id`` attribute.
Refer to :ref:`vuart_config` for detailed vUART settings.
``type`` (a child node of ``legacy_vuart``):
vUART (aka COM) type; currently only supports the legacy PIO mode.
``base`` (a child node of ``vuart``):
``base`` (a child node of ``legacy_vuart``, ``console_vuart``, and ``communication_vuart``):
vUART (A.K.A COM) enabling switch. Enable by exposing its COM_BASE
(SOS_COM_BASE for Service VM); disable by returning INVALID_COM_BASE.
``irq`` (a child node of ``vuart``):
console and communication vUART (A.K.A PCI based vUART) enabling switch.
Enable by specifying PCI_VUART; disable by returning INVALID_PCI_BASE.
``irq`` (a child node of ``legacy_vuart``):
vCOM IRQ.
``target_vm_id`` (a child node of ``vuart1``):
``target_vm_id`` (a child node of ``legacy_vuart1``, ``communication_vuart``):
COM2 is used for VM communications. When it is enabled, specify which
target VM the current VM connects to.
``target_uart_id`` (a child node of ``vuart1``):
``communication_vuart`` is used for VM communications. When it is enabled, specify
which target VM the current VM connects to.
``target_uart_id`` (a child node of ``legacy_vuart1`` and ``communication_vuart``):
Target vUART ID to which the vCOM2 connects.
Target vUART ID to which the ``communication_vuart`` connects.
``pci_dev_num``:
PCI devices number of the VM; it is hard-coded for each scenario so it
is not configurable for now.