Re: [PATCH v19 04/25] x86/cpufeatures: Introduce X86_FEATURE_CET and setup functions
From: Borislav Petkov <bp@alien8.de>
Date: 2021-02-05 13:47:47
Also in:
linux-arch, linux-doc, linux-mm, lkml
On Wed, Feb 03, 2021 at 02:55:26PM -0800, Yu-cheng Yu wrote:
quoted hunk ↗ jump to hunk
@@ -1252,6 +1260,13 @@ static void __init cpu_parse_early_param(void) if (cmdline_find_option_bool(boot_command_line, "noxsaves")) setup_clear_cpu_cap(X86_FEATURE_XSAVES); +#ifdef CONFIG_X86_CET + if (cmdline_find_option_bool(boot_command_line, "no_user_shstk")) + setup_clear_cpu_cap(X86_FEATURE_SHSTK); + if (cmdline_find_option_bool(boot_command_line, "no_user_ibt")) + setup_clear_cpu_cap(X86_FEATURE_IBT); +#endif
Any particular need for the ifdeffery?
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette