# HG changeset patch
# User Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
# Date 1310632313 -3600
# Node ID 8490523fe2a4f1df72c43f23922758ff0d62d9e1
# Parent cf7e1746bdb7cb0f35b1df835096d9979312f8f4
doc: Update the com1,com2 section with pci and amt options.
The "xen: Automatically find serial port on PCI/PCIe and AMT devices."
provides the functionality to probe for the I/O base using the
"pci" and "amt" option. Update the documentation with this fact.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
diff -r cf7e1746bdb7 -r 8490523fe2a4 docs/src/user.tex
--- a/docs/src/user.tex Thu Jul 14 09:31:12 2011 +0100
+++ b/docs/src/user.tex Thu Jul 14 09:31:53 2011 +0100
@@ -2154,8 +2154,8 @@
is bad, you would place `badpage=0x12345' on Xen's command line.
\item [ serial\_tx\_buffer=$<$size$>$ ] Size of serial transmit
buffers. Default is 16kB.
-\item [ com1=$<$baud$>$,DPS,$<$io\_base$>$,$<$irq$>$
- com2=$<$baud$>$,DPS,$<$io\_base$>$,$<$irq$>$ ] \mbox{}\\
+\item [ com1=$<$baud$>$,DPS,($<$io\_base$>$$|$pci$|$amt),$<$irq$>$
+ com2=$<$baud$>$,DPS,($<$io\_base$>$$|$pci$|$amt),$<$irq$>$] \mbox{}\\
Xen supports up to two 16550-compatible serial ports. For example:
`com1=9600, 8n1, 0x408, 5' maps COM1 to a 9600-baud port, 8 data
bits, no parity, 1 stop bit, I/O port base 0x408, IRQ 5. If some
@@ -2163,6 +2163,10 @@
only a prefix of the full configuration string need be specified. If
the baud rate is pre-configured (e.g., by the bootloader) then you
can specify `auto' in place of a numeric baud rate.
+ For PCI serial devices, such as Intel AMT you can use the {\bf amt}
+ option to automatically find the I/O base. For PCI serial devices,
+ such as NetMos, you can use {\bf pci} to probe for the I/O base.
+ Both options will set the IRQ to zero - meaning they will poll the device.
\item [ console=$<$specifier list$>$ ] Specify the destination for Xen
console I/O. This is a comma-separated list of, for example:
\begin{description}
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