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linux/arch/arm/mm
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Ard Biesheuvel 6b0ef2792c ARM: 9384/2: mm: Make tlbflush routines CFI safe 
Instead of avoiding CFI entirely on the TLB flush helpers, reorganize
the code so that the CFI machinery can deal with it. The important
things to take into account are:
- functions in asm called indirectly from C need to be defined using
  SYM_TYPED_FUNC_START()
- a reference to the asm function needs to be visible to the compiler,
  in order to get it to emit the typeid symbol.

The latter means that defining the cpu_tlb_fns structs is best done from
C code, so that the references in the static initializers will be
visible to the compiler.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
2024-04-29 14:14:15 +01:00
..
abort-ev4.S
abort-ev4t.S
abort-ev5t.S
abort-ev5tj.S
abort-ev6.S ARM: 9263/1: use .arch directives instead of assembler command line flags 2022-11-08 18:36:17 +00:00
abort-ev7.S ARM: 9263/1: use .arch directives instead of assembler command line flags 2022-11-08 18:36:17 +00:00
abort-lv4t.S
abort-macro.S
abort-nommu.S
alignment.c ARM: 9214/1: alignment: advance IT state after emulating Thumb instruction 2022-07-06 22:44:49 +01:00
cache-b15-rac.c ARM: mm: fix typos in comments 2022-04-04 10:18:54 -07:00
cache-fa.S ARM: mm: Make virt_to_pfn() a static inline 2023-05-29 11:27:08 +02:00
cache-feroceon-l2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 1) 2022-06-10 14:51:35 +02:00
cache-l2x0-pmu.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
cache-l2x0.c ARM: 9007/1: l2c: fix prefetch bits init in L2X0_AUX_CTRL using DT values 2020-09-15 14:35:53 +01:00
cache-nop.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cache-tauros2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 1) 2022-06-10 14:51:35 +02:00
cache-tauros3.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 171 2019-05-30 11:26:39 -07:00
cache-uniphier.c ARM: uniphier: fix cache kernel-doc warnings 2023-09-27 11:02:14 +02:00
cache-v4.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cache-v4wb.S ARM: mm: Make virt_to_pfn() a static inline 2023-05-29 11:27:08 +02:00
cache-v4wt.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cache-v6.S ARM: Delete ARM11MPCore (ARM11 ARMv6K SMP) support 2023-12-22 11:43:16 +00:00
cache-v7.S ARM: 9263/1: use .arch directives instead of assembler command line flags 2022-11-08 18:36:17 +00:00
cache-v7m.S ARM: 9263/1: use .arch directives instead of assembler command line flags 2022-11-08 18:36:17 +00:00
cache-xsc3l2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
context.c ARM: mm: make vmalloc_seq handling SMP safe 2022-01-25 09:53:52 +01:00
copypage-fa.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
copypage-feroceon.c ARM: 9263/1: use .arch directives instead of assembler command line flags 2022-11-08 18:36:17 +00:00
copypage-v4mc.c arm: implement the new page table range API 2023-08-24 16:20:20 -07:00
copypage-v4wb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
copypage-v4wt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
copypage-v6.c arm: implement the new page table range API 2023-08-24 16:20:20 -07:00
copypage-xsc3.c ARM: PXA: fix multi-cpu build of xsc3 2022-05-07 22:56:16 +02:00
copypage-xscale.c arm: implement the new page table range API 2023-08-24 16:20:20 -07:00
dma-mapping-nommu.c iommu: Remove struct iommu_ops *iommu from arch_setup_dma_ops() 2023-12-12 10:18:45 +01:00
dma-mapping.c IOMMU Updates for Linux v6.8 2024-01-18 15:16:57 -08:00
dma.h
dump.c mm/treewide: replace pmd_large() with pmd_leaf() 2024-03-06 13:04:19 -08:00
extable.c
fault-armv.c arm: implement the new page table range API 2023-08-24 16:20:20 -07:00
fault.c ARM updates for v6.9-rc1 2024-03-23 09:17:03 -07:00
fault.h ARM: 9304/1: add prototype for function called only from asm 2023-06-19 09:35:52 +01:00
flush.c ARM: 9359/1: flush: check if the folio is reserved for no-mapping addresses 2024-03-11 16:04:19 +00:00
fsr-2level.c
fsr-3level.c
hugetlbpage.c mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
idmap.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
init.c ARM updates for v6.9-rc1 2024-03-23 09:17:03 -07:00
iomap.c ARM: 8923/1: mm: include <asm/vga.h> for vga_base 2019-10-31 16:58:54 +00:00
ioremap.c mm: Introduce vmap_page_range() to map pages in PCI address space 2024-03-11 16:58:10 +01:00
kasan_init.c ARM: 9329/1: kasan: Use memblock_alloc_try_nid_raw for shadow page 2023-12-05 11:42:15 +00:00
Kconfig ARM: Delete ARM11MPCore (ARM11 ARMv6K SMP) support 2023-12-22 11:43:16 +00:00
l2c-common.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
l2c-l2x0-resume.S
Makefile ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00
mm.h arm: implement the new page table range API 2023-08-24 16:20:20 -07:00
mmap.c arm: Use the generic devmem_is_allowed() 2020-12-11 12:28:24 -08:00
mmu.c arm/mm: use pte_next_pfn() in set_ptes() 2024-02-22 10:24:51 -08:00
nommu.c arm: implement the new page table range API 2023-08-24 16:20:20 -07:00
pabort-legacy.S
pabort-v6.S
pabort-v7.S
pageattr.c minmax: add in_range() macro 2023-08-24 16:20:18 -07:00
pgd.c ARM: 9016/2: Initialize the mapping of KASan shadow memory 2020-10-27 12:11:10 +00:00
physaddr.c ARM: mm: Make virt_to_pfn() a static inline 2023-05-29 11:27:08 +02:00
pmsa-v7.c ARM: 9069/1: NOMMU: Fix conversion for_each_membock() to for_each_mem_range() 2021-03-25 10:25:20 +00:00
pmsa-v8.c ARM: mm: Make virt_to_pfn() a static inline 2023-05-29 11:27:08 +02:00
proc-arm7tdmi.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm9tdmi.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm720.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm740.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm920.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm922.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm925.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm926.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm940.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm946.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm1020.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm1020e.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm1022.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm1026.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-fa526.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-feroceon.S ARM: vfp: Remove workaround for Feroceon CPUs 2023-05-17 13:11:38 +02:00
proc-macros.S ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00
proc-mohawk.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-sa110.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-sa1100.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-syms.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
proc-v6.S ARM: 9263/1: use .arch directives instead of assembler command line flags 2022-11-08 18:36:17 +00:00
proc-v7-2level.S ARM: 9263/1: use .arch directives instead of assembler command line flags 2022-11-08 18:36:17 +00:00
proc-v7-3level.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
proc-v7-bugs.c ARM: 9213/1: Print message about disabled Spectre workarounds only once 2022-07-06 22:44:49 +01:00
proc-v7.S ARM: mm: Make virt_to_pfn() a static inline 2023-05-29 11:27:08 +02:00
proc-v7m.S ARM: mm: Make virt_to_pfn() a static inline 2023-05-29 11:27:08 +02:00
proc-xsc3.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-xscale.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
ptdump_debugfs.c ARM: 9074/1: ptdump: convert to DEFINE_SHOW_ATTRIBUTE 2021-04-18 19:15:13 +01:00
pv-fixup-asm.S ARM: mm: Make virt_to_pfn() a static inline 2023-05-29 11:27:08 +02:00
tlb-fa.S ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00
tlb-v4.S ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00
tlb-v4wb.S ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00
tlb-v4wbi.S ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00
tlb-v6.S ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00
tlb-v7.S ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00
tlb.c ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00