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Re: [Xen-devel] Cannot create mini-os guest for arm64

On May 20, 2013, at 7:24 PM, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:

> On Mon, 2013-05-20 at 19:21 +0800, Chen Baozi wrote:
>> On May 20, 2013, at 5:11 PM, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
>>> On Mon, 2013-05-20 at 11:37 +0800, Chen Baozi wrote:
>>>> Sorry, I think the problem described above only happened if I use 
>>>> "xen-syms"
>>>> for debugging. If I switch to "xen", there is no such problem on paging 
>>>> though
>>>> it still not work (phenomenons: couldn't see any output).
>>> xen-syms is not suitable for booting, only for pointing GDB at.
>>>> So the situation is that xen-syms doesn't work for either arm-cross2 branch
>>>> or mainline, (I used it by mistake),  while xen doesn't work in mainline 
>>>> but 
>>>> arm-cross2 branch.
>>> What is the failure mode here? I'm not sure which of your previous
>>> symptoms were related to the use of xen-syms.
>> I think xen-syms symptoms is because of my misusing. Sorry for my stupid.
>> However, if I use "xen" (which works for your arm-cross2 branch) in
>> mainline, there is not any output while booting.
> There have been some changes in mainline. You need to add
> "dtuart=serial0" to your bootargs (where serial0 is an alias defined in
> your dts).
> You may also want to re-enable early-printk for your platform, see
> docs/misc/arm/early-printk.txt.
Thanks a lot. It works for me.

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