diff options
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 21 |
1 files changed, 3 insertions, 18 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 4cd18523662b..bb90968e388a 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -2513,31 +2513,16 @@ config MITIGATION_RFDS stored in floating point, vector and integer registers. See also <file:Documentation/admin-guide/hw-vuln/reg-file-data-sampling.rst> -choice - prompt "Clear branch history" +config MITIGATION_SPECTRE_BHI + bool "Mitigate Spectre-BHB (Branch History Injection)" depends on CPU_SUP_INTEL - default SPECTRE_BHI_ON + default y help Enable BHI mitigations. BHI attacks are a form of Spectre V2 attacks where the branch history buffer is poisoned to speculatively steer indirect branches. See <file:Documentation/admin-guide/hw-vuln/spectre.rst> -config SPECTRE_BHI_ON - bool "on" - help - Equivalent to setting spectre_bhi=on command line parameter. -config SPECTRE_BHI_OFF - bool "off" - help - Equivalent to setting spectre_bhi=off command line parameter. -config SPECTRE_BHI_AUTO - bool "auto" - help - Equivalent to setting spectre_bhi=auto command line parameter. - -endchoice - endif config ARCH_HAS_ADD_PAGES |