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Re: [Xen-ia64-devel] [Xen-devel] Call hypercall straightly from user spa

from [Tristan Gingold] [Permanent Link][Original]
To: "Xu, Anthony" <anthony.xu@xxxxxxxxx>
Subject: Re: [Xen-ia64-devel] [Xen-devel] Call hypercall straightly from user space
From: Tristan Gingold <tgingold@xxxxxxx>
Date: Sat, 30 Dec 2006 16:22:38 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, xen-ia64-devel <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
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On Sat, Dec 30, 2006 at 04:03:19PM +0800, Xu, Anthony wrote:
> Hi keir,
> 
> As you mention before, we may call hypercall straightly from user space 
> rather than bouncing through guest kernel.
Hi,

I haven't found the reference, but how security is addressed ?  How to prevent
a user process from making such hypercalls ?

Tristan.

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