Isn't the UART already enabled, since he was seeing garbage on the wire
rather than nothing?
-- Keir
On 05/05/2009 02:31, "Yu Zhao" <yu.zhao@xxxxxxxxx> wrote:
> 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
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