x86/srso: Add SRSO mitigation for Hygon processors
authorPu Wen <puwen@hygon.cn>
Thu, 28 Sep 2023 06:59:16 +0000 (14:59 +0800)
committerIngo Molnar <mingo@kernel.org>
Thu, 28 Sep 2023 07:57:07 +0000 (09:57 +0200)
commita5ef7d68cea1344cf524f04981c2b3f80bedbb0d
tree5243d963d2498c97edd43245d3189409d72b8f5c
parent94adf495e733d3b7e8b826c452ba12e995eef7c7
x86/srso: Add SRSO mitigation for Hygon processors

Add mitigation for the speculative return stack overflow vulnerability
which exists on Hygon processors too.

Signed-off-by: Pu Wen <puwen@hygon.cn>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/tencent_4A14812842F104E93AA722EC939483CEFF05@qq.com
arch/x86/kernel/cpu/common.c