diff options
| author | Joerg Roedel <jroedel@suse.de> | 2018-07-18 11:40:57 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-07-20 01:11:42 +0200 |
| commit | 76e258add7b653b60037ee4b25ebc40da6a35c4a (patch) | |
| tree | b08f5ed51a63bc4d18a2891acdd7f7b90b88b00d /arch/x86/include/asm/pgtable_32.h | |
| parent | fcbbd977572cfe5a3dcc97d663bf7480431a07ca (diff) | |
| download | linux-0-day-76e258add7b653b60037ee4b25ebc40da6a35c4a.tar.gz linux-0-day-76e258add7b653b60037ee4b25ebc40da6a35c4a.tar.xz | |
x86/pgtable: Move two more functions from pgtable_64.h to pgtable.h
These two functions are required for PTI on 32 bit:
* pgdp_maps_userspace()
* pgd_large()
Also re-implement pgdp_maps_userspace() so that it will work on 64 and 32
bit kernels.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Pavel Machek <pavel@ucw.cz>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: linux-mm@kvack.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Brian Gerst <brgerst@gmail.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: Will Deacon <will.deacon@arm.com>
Cc: aliguori@amazon.com
Cc: daniel.gruss@iaik.tugraz.at
Cc: hughd@google.com
Cc: keescook@google.com
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Waiman Long <llong@redhat.com>
Cc: "David H . Gutteridge" <dhgutteridge@sympatico.ca>
Cc: joro@8bytes.org
Link: https://lkml.kernel.org/r/1531906876-13451-21-git-send-email-joro@8bytes.org
Diffstat (limited to 'arch/x86/include/asm/pgtable_32.h')
| -rw-r--r-- | arch/x86/include/asm/pgtable_32.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86/include/asm/pgtable_32.h b/arch/x86/include/asm/pgtable_32.h index 88a056b01db48..b3ec519e39827 100644 --- a/arch/x86/include/asm/pgtable_32.h +++ b/arch/x86/include/asm/pgtable_32.h @@ -34,8 +34,6 @@ static inline void check_pgt_cache(void) { } void paging_init(void); void sync_initial_page_table(void); -static inline int pgd_large(pgd_t pgd) { return 0; } - /* * Define this if things work differently on an i386 and an i486: * it will (on an i486) warn about kernel memory accesses that are |