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Old 06-03-2008, 08:07 PM
Ian Campbell
 
Default Bug#428895: Configuring Xen domain 0 to use serial console

It is possible to use a serial console with a Xen kernel by configuring
Xen to use a serial console and Linux to use the Xen console, which may
(confusingly) actually be masquerading as ttyS in the 2.6.18 kernels.

For example I use "xen.gz com1=115200,8n1 console=com1" together with
"vmlinuz console=/dev/ttyS0 xencons=ttyS" (the xencons=ttyS is redundant
in the kernel from Etch since it is the default in domain0)

Unfortunately this doesn't help with wanting to use serial ports for
non-console use in domain 0, although passing xencons={off,tty} might
free up the ttyS device major for 8250.ko to use.

Ian.

--
Ian Campbell

You may call me by my name, Wirth, or by my value, Worth.
-- Nicklaus Wirth
 
Old 06-03-2008, 09:12 PM
Bastian Blank
 
Default Bug#428895: Configuring Xen domain 0 to use serial console

On Tue, Jun 03, 2008 at 09:07:35PM +0100, Ian Campbell wrote:
> Unfortunately this doesn't help with wanting to use serial ports for
> non-console use in domain 0, although passing xencons={off,tty} might
> free up the ttyS device major for 8250.ko to use.

xencons=xvc console=/dev/xvc0

Bastian

--
Those who hate and fight must stop themselves -- otherwise it is not stopped.
-- Spock, "Day of the Dove", stardate unknown



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Old 06-03-2008, 09:38 PM
Ian Campbell
 
Default Bug#428895: Configuring Xen domain 0 to use serial console

On Tue, 2008-06-03 at 23:12 +0200, Bastian Blank wrote:
> On Tue, Jun 03, 2008 at 09:07:35PM +0100, Ian Campbell wrote:
> > Unfortunately this doesn't help with wanting to use serial ports for
> > non-console use in domain 0, although passing xencons={off,tty} might
> > free up the ttyS device major for 8250.ko to use.
>
> xencons=xvc console=/dev/xvc0

Unfortunately the "xvc" console type isn't present in the Etch kernel.

Ian.

--
Ian Campbell

Disk crisis, please clean up!
 

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