Re: [Xen-devel] Serial console on non-legacy PCI serial card?

[Yu Zhao <yu.zhao@xxxxxxxxx>]

Please apply the attached patch to the grub-0.97, reinstall the grub
and use the UART boot parameter you have figured out for Xen.

  kernel /boot/xen.gz com1=115200,8n1,0x1060,0 ...

Then you should get a workable serial console for Xen.

Good luck,
Yu

On Wed, Apr 29, 2009 at 03:35:59AM +0800, Nigel Gamble wrote:
> I have an Intel DX50SO motherboard for a Core i7 CPU which has no  
> legacy ports whatsoever, so no COM1 serial port.  I added a "SIIG  
> CyberPro PCI 1S" single serial port PCI card.
> 
> Linux dmesg shows it as:
> 
> [   30.244790] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> [   30.244984] serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a NS16550A
> [   30.245287] serial 0000:06:02.0: PCI INT A -> GSI 18 (level, low) - 
>  > IRQ 18
> [   30.245459] ttyS0: detected caps 00000700 should be 00000100
> [   30.245518] 0000:06:02.0: ttyS0 at I/O 0x1060 (irq = 18) is a  
> 16C950/954
> [   30.245583] console [ttyS0] enabled
> [   32.448682] ttyS2: detected caps 00000700 should be 00000100
> [   32.454929] 0000:06:02.0: ttyS2 at I/O 0x1068 (irq = 18) is a  
> 16C950/954
> 
> Note that the only port actually connected to the single connecter is  
> ttyS0 at 0x1060.  I can successfully use this as the Linux serial  
> console by adding the Linux boot parameters:
> 
> console=uart,io,0x1060,115200n8
> 
> However, I'm having problems trying to get it to work as a Xen  
> console.  If I add:
> 
> com1=115200,8n1,0x1060,0 console=vga,com1
> 
> to Xen, I do get some output to the port, but all the characters look  
> like this:
> 
> .<.....~.o....¼..4.|.a.½¬o.§¼4.#.ÿ.......ö4..¬.... 4.  . 
> 4Ä...T.Ä ..¼.Ä ....<.
> 
> Can anyone help me to get this to work?
> 
> Thanks,
> Nigel
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel

Attachment: grub.diff
Description: Text document

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