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Re: [Xen-devel] Proposal for init/kexec/hotplug format for Xen

On 27 Feb 2005, at 16:42, Anthony Liguori wrote:

Library for interdomain-communication primatives (providing the Sys-V IPC mechanisms seems like a reasonable start).

A reasonable interface to user-space, but what about when one endpoint is inside the kernel? I'm also concerned that SysV IPC is usually used between mutually trusting parties -- this is *not* necessarily the case between management services and managed domains. We need e.g., control over event-channel masking to be able to limit management resources consumed by overzealous or malicious guests.

Providing SysV IPC would be generally useful, but perhaps not the right thing for guest access to management services (persistent store, console daemon, ...).

 -- Keir

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