[Xen-devel] Question: How to write a file in domain 0?

[Zhao Lin <zlin2@xxxxxxxxxxxxxx>]

hey all,

a complete newbie here..I'm trying to implement a hypercall that takes
a string argument and then appends the string to a selected file
stored in domain0's hard disk.

I browsed through the source code but couldn't figure out a way to do
this. I'm thinking that I might need to get a reference to domain 0's
kernel and then ask the kernel to call printk() with the provided
string. Not sure if this is correct since I don't even know how domain
0 as well as other domains is referenced by the hypervisor..

How should I approach this? I'm desperately trying to learn here..

Hope this mailing list is the correct place to post my question..Open
to any suggestion. Thanks,

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