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(parent: 233d6f6) | patch
x86/srso: Add IBPB on VMEXIT
authorBorislav Petkov (AMD) <bp@alien8.de>
Fri, 7 Jul 2023 11:53:41 +0000 (13:53 +0200)
committerBorislav Petkov (AMD) <bp@alien8.de>
Thu, 27 Jul 2023 09:07:19 +0000 (11:07 +0200)
commitd893832d0e1ef41c72cdae444268c1d64a2be8ad
tree83f7e30871207c98c916ca6d76f946c79b6108b9tree
parent233d6f68b98d480a7c42ebe78c38f79d44741ca9commit | diff
x86/srso: Add IBPB on VMEXIT

Add the option to flush IBPB only on VMEXIT in order to protect from
malicious guests but one otherwise trusts the software that runs on the
hypervisor.

Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
arch/x86/include/asm/cpufeatures.h diff | blob | blame | history
arch/x86/kernel/cpu/bugs.c diff | blob | blame | history
arch/x86/kvm/svm/svm.c diff | blob | blame | history
arch/x86/kvm/svm/vmenter.S diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)