Messages in this thread | | | Date | Mon, 6 Apr 2020 17:22:31 +0200 | From | Peter Zijlstra <> | Subject | Re: [patch 1/2] x86,module: Detect VMX modules and disable Split-Lock-Detect |
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On Mon, Apr 06, 2020 at 08:18:47AM -0700, Christoph Hellwig wrote: > On Mon, Apr 06, 2020 at 04:40:20PM +0200, Peter Zijlstra wrote: > > It is absolutely bonkers, but at the same time we can extend this > > infrastructure to scan for dubious code patterns we don't want to > > support. Like for instance direct manipulation of CR4. > > But that is not what this code does - it disables split lock detection. > If it failed to load the module the whole thing would make a little > more sense.
If this lives, it'll be to just to fail module loading. IIRC the same was suggested elsewhere in the thread.
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