[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Hypervisor to dom0 communication
OK, my immediate end-goal is real-time logging of hypervisor events via a dom0 userspace application. These events are always about a currently running virtual machine, and said virtual machine is paused at the time. The userspace tool should be immediately notified, so no polling.This is very like the ioreq model, where the domain (or maybe just the vcpu, I'm not sure) is paused while qemu does its thing. What sort of events are we talking about here? A list of interesting registers that changed, that a page fault occured, things like that, occasionally containing some small string messages with extra information. Should be around 64 bytes or so. The right thing to do here is for the userspace tool to communicate with the toolstack (by whatever means) rather the hypervisor in order to control the domains. That's what I was thinking too. You might also find some inspiration for this sort of model in the xenpaging and memshare code. Will look those things up, I appreciate the replies. Thanks, Razvan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |