x86/asm/32: Make sync_core() handle missing CPUID on all 32-bit kernels
authorAndy Lutomirski <luto@kernel.org>
Fri, 9 Dec 2016 18:24:05 +0000 (10:24 -0800)
committerThomas Gleixner <tglx@linutronix.de>
Mon, 19 Dec 2016 10:54:20 +0000 (11:54 +0100)
commit1c52d859cb2d417e7216d3e56bb7fea88444cec9
treef67d4ee216a13d8666ea81e0f0a527a3cc16746a
parent3df8d9208569ef0b2313e516566222d745f3b94b
x86/asm/32: Make sync_core() handle missing CPUID on all 32-bit kernels

We support various non-Intel CPUs that don't have the CPUID
instruction, so the M486 test was wrong.  For now, fix it with a big
hammer: handle missing CPUID on all 32-bit CPUs.

Reported-by: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Matthew Whitehead <tedheadster@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: xen-devel <Xen-devel@lists.xen.org>
Link: http://lkml.kernel.org/r/685bd083a7c036f7769510b6846315b17d6ba71f.1481307769.git.luto@kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
arch/x86/include/asm/processor.h