diff options
| author |   Thomas Gleixner <tglx@linutronix.de> | 2017-12-04 15:07:36 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2017-12-23 21:12:59 +0100 |
| commit | aa8c6248f8c75acfd610fe15d8cae23cf70d9d09 (patch) | |
| tree | 0292dacc01baf9bbd4785d12bf2f6cd791c344eb /include/linux/pti.h | |
| parent | x86/mm/pti: Prepare the x86/entry assembly code for entry/exit CR3 switching (diff) | |
| download | linux-dev-aa8c6248f8c75acfd610fe15d8cae23cf70d9d09.tar.xz linux-dev-aa8c6248f8c75acfd610fe15d8cae23cf70d9d09.zip | |
x86/mm/pti: Add infrastructure for page table isolation
Add the initial files for kernel page table isolation, with a minimal init
function and the boot time detection for this misfeature.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Laight <David.Laight@aculab.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Eduardo Valentin <eduval@amazon.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: aliguori@amazon.com
Cc: daniel.gruss@iaik.tugraz.at
Cc: hughd@google.com
Cc: keescook@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/pti.h')
| -rw-r--r-- | include/linux/pti.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/pti.h b/include/linux/pti.h new file mode 100644 index 000000000000..0174883a935a --- /dev/null +++ b/include/linux/pti.h @@ -0,0 +1,11 @@ +// SPDX-License-Identifier: GPL-2.0 +#ifndef _INCLUDE_PTI_H +#define _INCLUDE_PTI_H + +#ifdef CONFIG_PAGE_TABLE_ISOLATION +#include <asm/pti.h> +#else +static inline void pti_init(void) { } +#endif + +#endif |