From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 9 Apr 2024 17:32:41 +0000 (+0200)
Subject: x86: set SPECTRE_BHI_ON as default
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=8d8dc7ee5b98fca7a65c800df93ded071a96fd49;p=users%2Fdwmw2%2Flinux.git

x86: set SPECTRE_BHI_ON as default

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>
---

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e9ac6e9dfbcb5..591b0a7abfd2c 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2508,7 +2508,7 @@ 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