diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h index 690c838e3a7e..20d016b4e986 100644 --- a/arch/x86/include/asm/nospec-branch.h +++ b/arch/x86/include/asm/nospec-branch.h @@ -221,11 +221,8 @@ /* The Spectre V2 mitigation variants */ enum spectre_v2_mitigation { SPECTRE_V2_NONE, - SPECTRE_V2_RETPOLINE_MINIMAL, - SPECTRE_V2_RETPOLINE_MINIMAL_AMD, SPECTRE_V2_RETPOLINE_GENERIC, SPECTRE_V2_RETPOLINE_AMD, - SPECTRE_V2_IBRS, SPECTRE_V2_IBRS_ENHANCED, }; diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index a0146ee52124..dd87fe5397c3 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -134,8 +134,6 @@ enum spectre_v2_mitigation_cmd { static const char *spectre_v2_strings[] = { [SPECTRE_V2_NONE] = "Vulnerable", - [SPECTRE_V2_RETPOLINE_MINIMAL] = "Vulnerable: Minimal generic ASM retpoline", - [SPECTRE_V2_RETPOLINE_MINIMAL_AMD] = "Vulnerable: Minimal AMD ASM retpoline", [SPECTRE_V2_RETPOLINE_GENERIC] = "Mitigation: Full generic retpoline", [SPECTRE_V2_RETPOLINE_AMD] = "Mitigation: Full AMD retpoline", [SPECTRE_V2_IBRS_ENHANCED] = "Mitigation: Enhanced IBRS", @@ -249,11 +247,6 @@ static void __init spec2_print_if_secure(const char *reason) pr_info("%s selected on command line.\n", reason); } -static inline bool retp_compiler(void) -{ - return __is_defined(CONFIG_RETPOLINE); -} - static inline bool match_option(const char *arg, int arglen, const char *opt) { int len = strlen(opt); @@ -414,14 +407,12 @@ retpoline_auto: pr_err("Spectre mitigation: LFENCE not serializing, switching to generic retpoline\n"); goto retpoline_generic; } - mode = retp_compiler() ? SPECTRE_V2_RETPOLINE_AMD : - SPECTRE_V2_RETPOLINE_MINIMAL_AMD; + mode = SPECTRE_V2_RETPOLINE_AMD; setup_force_cpu_cap(X86_FEATURE_RETPOLINE_AMD); setup_force_cpu_cap(X86_FEATURE_RETPOLINE); } else { retpoline_generic: - mode = retp_compiler() ? SPECTRE_V2_RETPOLINE_GENERIC : - SPECTRE_V2_RETPOLINE_MINIMAL; + mode = SPECTRE_V2_RETPOLINE_GENERIC; setup_force_cpu_cap(X86_FEATURE_RETPOLINE); }