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Kees Cook authored
The XD_DISABLE-clearing side-effect needs to happen for both 32bit and 64bit, but the 32bit init routines were not calling verify_cpu() yet. This adds that call to gain the side-effect. The longmode/SSE tests being performed in verify_cpu() need to happen very early for 64bit but not for 32bit. Instead of including it in two places for 32bit, we can just include it once in arch/x86/kernel/head_32.S. Signed-off-by:
Kees Cook <kees.cook@canonical.com> LKML-Reference: <1289414154-7829-4-git-send-email-kees.cook@canonical.com> Acked-by:
Pekka Enberg <penberg@kernel.org> Acked-by:
Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by:
H. Peter Anvin <hpa@linux.intel.com>
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