linux/arch/x86/include/asm/cmdline.h

#ifndef _ASM_X86_CMDLINE_H
#define _ASM_X86_CMDLINE_H

int cmdline_find_option_bool(const char *cmdline_ptr, const char *option);
int cmdline_find_option(const char *cmdline_ptr, const char *option,
			char *buffer, int bufsize);

#endif /* _ASM_X86_CMDLINE_H */
x86, boot: Carve out early cmdline parsing function Carve out early cmdline parsing function into .../lib/cmdline.c so it can be used by early code in the kernel proper as well. Adapted from arch/x86/boot/cmdline.c. Signed-off-by: Borislav Petkov <bp@suse.de> Link: http://lkml.kernel.org/r/1400525957-11525-2-git-send-email-bp@alien8.de Signed-off-by: H. Peter Anvin <hpa@zytor.com> 2014-05-19 18:59:16 +00:00			`#ifndef _ASM_X86_CMDLINE_H`
			`#define _ASM_X86_CMDLINE_H`

			`int cmdline_find_option_bool(const char cmdline_ptr, const char option);`
x86/boot: Add early cmdline parsing for options with arguments Add a cmdline_find_option() function to look for cmdline options that take arguments. The argument is returned in a supplied buffer and the argument length (regardless of whether it fits in the supplied buffer) is returned, with -1 indicating not found. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Brijesh Singh <brijesh.singh@amd.com> Cc: Dave Young <dyoung@redhat.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Larry Woodman <lwoodman@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Rik van Riel <riel@redhat.com> Cc: Toshimitsu Kani <toshi.kani@hpe.com> Cc: kasan-dev@googlegroups.com Cc: kvm@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: linux-doc@vger.kernel.org Cc: linux-efi@vger.kernel.org Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/36b5f97492a9745dce27682305f990fc20e5cf8a.1500319216.git.thomas.lendacky@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org> 2017-07-17 21:10:33 +00:00			`int cmdline_find_option(const char cmdline_ptr, const char option,`
			`char *buffer, int bufsize);`
x86, boot: Carve out early cmdline parsing function Carve out early cmdline parsing function into .../lib/cmdline.c so it can be used by early code in the kernel proper as well. Adapted from arch/x86/boot/cmdline.c. Signed-off-by: Borislav Petkov <bp@suse.de> Link: http://lkml.kernel.org/r/1400525957-11525-2-git-send-email-bp@alien8.de Signed-off-by: H. Peter Anvin <hpa@zytor.com> 2014-05-19 18:59:16 +00:00
			`#endif /* _ASM_X86_CMDLINE_H */`