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x86: set SPECTRE_BHI_ON as default

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commit 2bb69f5fc72183e1c62547d900f560d0e9334925 upstream.

Part of a merge commit from Linus that adjusted the default setting of
SPECTRE_BHI_ON.

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2024-04-09 19:32:41 +02:00
parent cb238e95ee
commit 6d9ef0c369
1 changed files with 1 additions and 1 deletions
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arch/x86/Kconfig
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@ -2569,7 +2569,7 @@ config MITIGATION_RFDS
choice
prompt "Clear branch history"
depends on CPU_SUP_INTEL
default SPECTRE_BHI_AUTO
default SPECTRE_BHI_ON
help
Enable BHI mitigations. BHI attacks are a form of Spectre V2 attacks
where the branch history buffer is poisoned to speculatively steer