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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-22 22:34:27 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-22 22:34:27 +0100 |
| commit | c45647f9f562b52915b43b6bb447827cebf511bd (patch) | |
| tree | 150ddfa8007d02088dcf3d4bb27204af58fb6658 /Documentation/arm | |
| parent | Merge tag 'for-5.11/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/... (diff) | |
| parent | Merge branch 'devel-stable' into for-next (diff) | |
| download | linux-c45647f9f562b52915b43b6bb447827cebf511bd.tar.xz linux-c45647f9f562b52915b43b6bb447827cebf511bd.zip | |
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux
Pull ARM updates from Russell King:
- Rework phys/virt translation
- Add KASan support
- Move DT out of linear map region
- Use more PC-relative addressing in assembly
- Remove FP emulation handling while in kernel mode
- Link with '-z norelro'
- remove old check for GCC <= 4.2 in ARM unwinder code
- disable big endian if using clang's linker
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (46 commits)
ARM: 9027/1: head.S: explicitly map DT even if it lives in the first physical section
ARM: 9038/1: Link with '-z norelro'
ARM: 9037/1: uncompress: Add OF_DT_MAGIC macro
ARM: 9036/1: uncompress: Fix dbgadtb size parameter name
ARM: 9035/1: uncompress: Add be32tocpu macro
ARM: 9033/1: arm/smp: Drop the macro S(x,s)
ARM: 9032/1: arm/mm: Convert PUD level pgtable helper macros into functions
ARM: 9031/1: hyp-stub: remove unused .L__boot_cpu_mode_offset symbol
ARM: 9044/1: vfp: use undef hook for VFP support detection
ARM: 9034/1: __div64_32(): straighten up inline asm constraints
ARM: 9030/1: entry: omit FP emulation for UND exceptions taken in kernel mode
ARM: 9029/1: Make iwmmxt.S support Clang's integrated assembler
ARM: 9028/1: disable KASAN in call stack capturing routines
ARM: 9026/1: unwind: remove old check for GCC <= 4.2
ARM: 9025/1: Kconfig: CPU_BIG_ENDIAN depends on !LD_IS_LLD
ARM: 9024/1: Drop useless cast of "u64" to "long long"
ARM: 9023/1: Spelling s/mmeory/memory/
ARM: 9022/1: Change arch/arm/lib/mem*.S to use WEAK instead of .weak
ARM: kvm: replace open coded VA->PA calculations with adr_l call
ARM: head.S: use PC relative insn sequence to calculate PHYS_OFFSET
...
Diffstat (limited to 'Documentation/arm')
| -rw-r--r-- | Documentation/arm/memory.rst | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/Documentation/arm/memory.rst b/Documentation/arm/memory.rst index 0521b4ce5c96..0cb1e2938823 100644 --- a/Documentation/arm/memory.rst +++ b/Documentation/arm/memory.rst @@ -45,9 +45,14 @@ fffe8000 fffeffff DTCM mapping area for platforms with fffe0000 fffe7fff ITCM mapping area for platforms with ITCM mounted inside the CPU. -ffc00000 ffefffff Fixmap mapping region. Addresses provided +ffc80000 ffefffff Fixmap mapping region. Addresses provided by fix_to_virt() will be located here. +ffc00000 ffc7ffff Guard region + +ff800000 ffbfffff Permanent, fixed read-only mapping of the + firmware provided DT blob + fee00000 feffffff Mapping of PCI I/O space. This is a static mapping within the vmalloc space. @@ -72,6 +77,11 @@ MODULES_VADDR MODULES_END-1 Kernel module space Kernel modules inserted via insmod are placed here using dynamic mappings. +TASK_SIZE MODULES_VADDR-1 KASAn shadow memory when KASan is in use. + The range from MODULES_VADDR to the top + of the memory is shadowed here with 1 bit + per byte of memory. + 00001000 TASK_SIZE-1 User space mappings Per-thread mappings are placed here via the mmap() system call. |