Re: [Xen-devel] Sysenter_entry and /proc/kallsyms

["Jan Beulich" <jbeulich@xxxxxxxxxx>]

>>> Steve Brueckner <steve@xxxxxxxxxxxxxx> 27.07.06 23:52 >>>
>I notice that sysenter_entry is not present in /proc/kallsyms for Xen
>kernels, but is present in my non-Xen FC5 kernel.  I'm doing some security
>research and trying to install an LKM rootkit into a paravirtualized VM, but
>it's trying to look up sysenter_entry during compile and failing.
>
>Can anyone explain why sysenter_entry is missing from the table, keeping in
>mind I'm a kernel neophyte?

Because sysenter is not supported for application->kernel transitions under
32-bit Xen.

Jan

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