x86/amd_nb: Check vendor in AMD-only functions

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Exit early in functions which are meant to run on AMD only but which get
run on different vendor (VMs, etc).

 [ bp: rewrite commit message. ]

Signed-off-by: Pu Wen <puwen@hygon.cn>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: bhelgaas@google.com
Cc: tglx@linutronix.de
Cc: mingo@redhat.com
Cc: hpa@zytor.com
Cc: x86@kernel.org
Cc: thomas.lendacky@amd.com
Cc: helgaas@kernel.org
Link: https://lkml.kernel.org/r/487d8078708baedaf63eb00a82251e228b58f1c2.1537885177.git.puwen@hygon.cn

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Pu Wen 2018-09-25 22:45:01 +08:00 • committed by Borislav Petkov

parent c3fecca457

commit b7a5cb4f22

2 changed files with 7 additions and 0 deletions

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3

arch/x86/include/asm/amd_nb.h

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4

arch/x86/kernel/amd_nb.c

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