x86/bugs: Add Hygon Dhyana to the respective mitigation machinery

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The Hygon Dhyana CPU has the same speculative execution as AMD family
17h, so share AMD spectre mitigation code with Hygon Dhyana.

Also Hygon Dhyana is not affected by meltdown, so add exception for it.

Signed-off-by: Pu Wen <puwen@hygon.cn>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: tglx@linutronix.de
Cc: mingo@redhat.com
Cc: hpa@zytor.com
Cc: x86@kernel.org
Cc: thomas.lendacky@amd.com
Link: https://lkml.kernel.org/r/0861d39c8a103fc0deca15bafbc85d403666d9ef.1537533369.git.puwen@hygon.cn

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Pu Wen 2018-09-23 17:35:50 +08:00 • committed by Borislav Petkov

parent da33dfef40

commit 1a576b23d6

2 changed files with 4 additions and 1 deletions

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arch/x86/kernel/cpu/bugs.c

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1

arch/x86/kernel/cpu/common.c

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