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Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qem

From: Avi Kivity
Subject: Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu
Date: Tue, 10 Nov 2009 14:25:10 +0200
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20091014 Fedora/3.0-2.8.b4.fc11 Thunderbird/3.0b4

On 11/09/2009 09:35 PM, Jamie Lokier wrote:

What I'd like to know is, if all of QEMU's state is appropriately
recreated in the child instance, and KVM's device is reopened with a
copy of the kvm state (by using the recently introduced ioctls to get
and set it), will it fork the _guest RAM_ mapped into KVM in the way
that fork does?

Guest RAM is just ordinary userspace memory. If you told Linux to COW it, it will COW it. If you told Linux not to COW it, it will not COW it. kvm has nothing to say in the matter (at least with kernels 2.6.27 and up).

error compiling committee.c: too many arguments to function

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