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Diffstat (limited to 'arch/x86/kernel/cpu/common.c')
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index d4e539d4e158..10a5402d8297 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1510,6 +1510,11 @@ static void __init cpu_parse_early_param(void) if (cmdline_find_option_bool(boot_command_line, "nousershstk")) setup_clear_cpu_cap(X86_FEATURE_USER_SHSTK); + /* Minimize the gap between FRED is available and available but disabled. */ + arglen = cmdline_find_option(boot_command_line, "fred", arg, sizeof(arg)); + if (arglen != 2 || strncmp(arg, "on", 2)) + setup_clear_cpu_cap(X86_FEATURE_FRED); + arglen = cmdline_find_option(boot_command_line, "clearcpuid", arg, sizeof(arg)); if (arglen <= 0) return; |