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hi, all
Recently, I want to add a hidden domain in Xen. So I
have studied the source codes related to idle-vcpu.
Now, I have implemented a hidden domain, which contains
a vcpu similar to idle-vcpu. In this vcpu, it used the same page-table with
idle-vcpu, that is, idle_pg_table, so the vcpu can access the memory within xen
hypervisor address space. Being apparent, this vcpu is like a kernel thread of
linux.
Fortunately, the method is good when the changed xen is
running under single physical CPU, while the running speed of domain became a
little slow. However, when the changed xen is installed onto the machine with
dual-core, the machine is dead. So, how can I solve the problem? If the death of
machine is due to the vcpu's synchronization.
who can give me some advise?
Thanks in advance.
--Haifeng Fang
Beijing China
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