diff options
| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-03-12 13:50:51 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-03-29 04:22:11 +0200 |
| commit | c16728835eec45fa82f4744a52940717ac828f6d (patch) | |
| tree | 2bda7323fd0bc1471642537643339d19eba44b0a /arch/powerpc/include/asm/nohash | |
| parent | powerpc/8xx: Create C version of kuap save/restore/check helpers (diff) | |
| download | linux-c16728835eec45fa82f4744a52940717ac828f6d.tar.xz linux-c16728835eec45fa82f4744a52940717ac828f6d.zip | |
powerpc/32: Manage KUAP in C
Move all KUAP management in C.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/199365ddb58d579daf724815f2d0acb91cc49d19.1615552867.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/include/asm/nohash')
| -rw-r--r-- | arch/powerpc/include/asm/nohash/32/kup-8xx.h | 25 |
1 files changed, 1 insertions, 24 deletions
diff --git a/arch/powerpc/include/asm/nohash/32/kup-8xx.h b/arch/powerpc/include/asm/nohash/32/kup-8xx.h index e6b5ebca47e5..295ef5639609 100644 --- a/arch/powerpc/include/asm/nohash/32/kup-8xx.h +++ b/arch/powerpc/include/asm/nohash/32/kup-8xx.h @@ -7,30 +7,7 @@ #ifdef CONFIG_PPC_KUAP -#ifdef __ASSEMBLY__ - -.macro kuap_save_and_lock sp, thread, gpr1, gpr2, gpr3 - lis \gpr2, MD_APG_KUAP@h /* only APG0 and APG1 are used */ - mfspr \gpr1, SPRN_MD_AP - mtspr SPRN_MD_AP, \gpr2 - stw \gpr1, STACK_REGS_KUAP(\sp) -.endm - -.macro kuap_restore sp, current, gpr1, gpr2, gpr3 - lwz \gpr1, STACK_REGS_KUAP(\sp) - mtspr SPRN_MD_AP, \gpr1 -.endm - -.macro kuap_check current, gpr -#ifdef CONFIG_PPC_KUAP_DEBUG - mfspr \gpr, SPRN_MD_AP - rlwinm \gpr, \gpr, 16, 0xffff -999: twnei \gpr, MD_APG_KUAP@h - EMIT_BUG_ENTRY 999b, __FILE__, __LINE__, (BUGFLAG_WARNING | BUGFLAG_ONCE) -#endif -.endm - -#else /* !__ASSEMBLY__ */ +#ifndef __ASSEMBLY__ #include <asm/reg.h> |