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

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

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

> libxen-idc
>  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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