linux_dsm_epyc7002/arch/powerpc/mm
Nicholas Piggin 5c9fa16e8a powerpc/64s: Remove PROT_SAO support
ISA v3.1 does not support the SAO storage control attribute required to
implement PROT_SAO. PROT_SAO was used by specialised system software
(Lx86) that has been discontinued for about 7 years, and is not thought
to be used elsewhere, so removal should not cause problems.

We rather remove it than keep support for older processors, because
live migrating guest partitions to newer processors may not be possible
if SAO is in use (or worse allowed with silent races).

- PROT_SAO stays in the uapi header so code using it would still build.
- arch_validate_prot() is removed, the generic version rejects PROT_SAO
  so applications would get a failure at mmap() time.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Drop KVM change for the time being]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200703011958.1166620-3-npiggin@gmail.com
2020-07-22 00:01:25 +10:00
..
book3s32 mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
book3s64 powerpc/64s: Remove PROT_SAO support 2020-07-22 00:01:25 +10:00
kasan powerpc/kasan: Fix shadow pages allocation failure 2020-07-15 12:04:39 +10:00
nohash powerpc/fsl_booke/32: Fix build with CONFIG_RANDOMIZE_BASE 2020-06-22 20:41:52 +10:00
ptdump powerpc/ptdump: Fix build failure in hashpagetable.c 2020-06-22 10:37:58 +10:00
copro_fault.c mmap locking API: use coccinelle to convert mmap_sem rwsem call sites 2020-06-09 09:39:14 -07:00
dma-noncoherent.c dma-mapping: drop the dev argument to arch_sync_dma_for_* 2019-11-20 20:31:38 +01:00
drmem.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
fault.c mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
highmem.c arch/kunmap_atomic: consolidate duplicate code 2020-06-04 19:06:22 -07:00
hugetlbpage.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
init_32.c Revert "powerpc/kasan: Fix shadow pages allocation failure" 2020-07-15 12:04:39 +10:00
init_64.c powerpc/mm: Enable radix GTSE only if supported. 2020-07-16 13:00:21 +10:00
init-common.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
ioremap_32.c powerpc/ioremap: warn on early use of ioremap() 2019-11-19 19:38:38 +11:00
ioremap_64.c powerpc: remove __ioremap_at and __iounmap_at 2020-06-02 10:59:10 -07:00
ioremap.c mm/memremap_pages: Introduce memremap_compat_align() 2020-02-20 16:58:55 -08:00
Makefile powerpc/mm: Move ioremap functions out of pgtable_32/64.c 2019-08-27 13:03:35 +10:00
mem.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
mmap.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
mmu_context.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mmu_decl.h powerpc/8xx: Don't set IMMR map anymore at boot 2020-05-26 22:22:21 +10:00
numa.c powerpc/numa: remove arch_update_cpu_topology 2020-07-16 13:12:39 +10:00
pgtable_32.c mm: pgtable: add shortcuts for accessing kernel PMD and PTE 2020-06-09 09:39:13 -07:00
pgtable_64.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
pgtable-frag.c powerpc/mm/radix: Fix PTE/PMD fragment count for early page table mappings 2020-07-20 22:57:56 +10:00
pgtable.c arch/powerpc/mm/pgtable.c: another missed conversion 2020-06-10 14:44:46 -07:00
slice.c powerpc: Replace _ALIGN_UP() by ALIGN() 2020-05-11 23:15:15 +10:00