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
grub.diff
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