| From | Andy Lutomirski <> | Date | Fri, 13 Jul 2018 10:28:50 -0700 | Subject | Re: [PATCH 39/39] x86/entry/32: Add debug code to check entry/exit cr3 |
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On Wed, Jul 11, 2018 at 4:29 AM, Joerg Roedel <joro@8bytes.org> wrote: > From: Joerg Roedel <jroedel@suse.de> > > Add a config option that enabled code to check that we enter > and leave the kernel with the correct cr3. This is needed > because we have no NX protection of user-addresses in the > kernel-cr3 on x86-32 and wouldn't notice that type of bug > otherwise. >
I like this, but could you make it just use CONFIG_DEBUG_ENTRY?
--Andy
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