From: "Haifeng Fang" <fhf25@126.com>
To: Keir Fraser <keir.fraser@eu.citrix.com>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: some questions about vcpu?
Date: Wed, 20 Jan 2010 20:44:06 +0800 [thread overview]
Message-ID: <201001202044060528755@126.com> (raw)
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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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next reply other threads:[~2010-01-20 12:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-20 12:44 Haifeng Fang [this message]
2010-01-20 14:03 ` some questions about vcpu? George Dunlap
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