diff options
| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-01-12 13:45:27 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-01-16 23:47:13 +1100 |
| commit | 812fadcb941a81d1f3948b10a95a4dce663da3e4 (patch) | |
| tree | dfbe078fb417e5ae487f37f2e853a1690004b580 /arch/powerpc/include/asm/nohash/pte-book3e.h | |
| parent | 5f356497c38448874f2d491cd214e9c283f5592d (diff) | |
powerpc/mm: extend _PAGE_PRIVILEGED to all CPUs
commit ac29c64089b74 ("powerpc/mm: Replace _PAGE_USER with
_PAGE_PRIVILEGED") introduced _PAGE_PRIVILEGED for BOOK3S/64
This patch generalises _PAGE_PRIVILEGED for all CPUs, allowing
to have either _PAGE_PRIVILEGED or _PAGE_USER or both.
PPC_8xx has a _PAGE_SHARED flag which is set for and only for
all non user pages. Lets rename it _PAGE_PRIVILEGED to remove
confusion as it has nothing to do with Linux shared pages.
On BookE, there's a _PAGE_BAP_SR which has to be set for kernel
pages: defining _PAGE_PRIVILEGED as _PAGE_BAP_SR will make
this generic
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/nohash/pte-book3e.h')
| -rw-r--r-- | arch/powerpc/include/asm/nohash/pte-book3e.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/nohash/pte-book3e.h b/arch/powerpc/include/asm/nohash/pte-book3e.h index 2da4532ca377..ccee8eb509bb 100644 --- a/arch/powerpc/include/asm/nohash/pte-book3e.h +++ b/arch/powerpc/include/asm/nohash/pte-book3e.h @@ -55,6 +55,7 @@ #define _PAGE_KERNEL_RWX (_PAGE_BAP_SW | _PAGE_BAP_SR | _PAGE_DIRTY | _PAGE_BAP_SX) #define _PAGE_KERNEL_ROX (_PAGE_BAP_SR | _PAGE_BAP_SX) #define _PAGE_USER (_PAGE_BAP_UR | _PAGE_BAP_SR) /* Can be read */ +#define _PAGE_PRIVILEGED (_PAGE_BAP_SR) #define _PAGE_HASHPTE 0 #define _PAGE_BUSY 0 |