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SubjectRe: [PATCH 0/2 v3] kvm: notify host when guest panicked
On 03/14/2012 12:52 PM, Wen Congyang wrote:
> >
> >> If so, is this channel visible to guest userspace? If the channle is visible to guest
> >> userspace, the program running in userspace may write the same message to the channel.
> >
> > Access control is via permissions. You can have udev scripts assign
> > whatever uid and gid to the port of your interest. By default, all
> > ports are only accessible to the root user.
>
> We should also prevent root user writing message to this channel if it is
> used for panicked notification.
>

Why? root can easily cause a panic.

--
error compiling committee.c: too many arguments to function



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