linux-kernel - [PATCH v4 0/7] KASAN for arm64

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Message-id: <1437756119-12817-1-git-send-email-a.ryabinin@samsung.com>
Date:	Fri, 24 Jul 2015 19:41:52 +0300
From:	Andrey Ryabinin <a.ryabinin@...sung.com>
To:	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	linux-arm-kernel@...ts.infradead.org
Cc:	Arnd Bergmann <arnd@...db.de>,
	Linus Walleij <linus.walleij@...aro.org>,
	David Keitel <dkeitel@...eaurora.org>,
	Alexander Potapenko <glider@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Dmitry Vyukov <dvyukov@...gle.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Alexey Klimov <klimov.linux@...il.com>,
	Andrey Ryabinin <a.ryabinin@...sung.com>
Subject: [PATCH v4 0/7] KASAN for arm64

For git users patches are available in git:
 	git://github.com/aryabinin/linux.git kasan/arm64v4

Changes since v3:
 - Generate KASAN_SHADOW_OFFSET in Makefile
 - zero_p*_populate() functions now return void
 - Switch x86 to generic kasan_populate_zero_shadow() too
 - Add license headers
 - fix memleak in kasan_populate_zero_shadow:
       Following code could leak memory when pgd_populate() is nop:
		void *p = early_alloc(PAGE_SIZE, NUMA_NO_NODE);
		pgd_populate(&init_mm, pgd, p);
	This was replaced by:
	     	 pgd_populate(&init_mm, pgd, early_alloc(PAGE_SIZE, NUMA_NO_NODE));

Changes since v2:
 - Rebase on top of v4.2-rc3
 - Address feedback from Catalin.
 - Print memory assignment from Linus
 - Add message about KASAN being initialized

Changes since v1:
 - Address feedback from Catalin.
 - Generalize some kasan init code from arch/x86/mm/kasan_init_64.c
    and reuse it for arm64.
 - Some bugfixes, including:
   	add missing arm64/include/asm/kasan.h
	add tlb flush after changing ttbr1
 - Add code comments.
 
Andrey Ryabinin (6):
  x86/kasan: generate KASAN_SHADOW_OFFSET in Makefile
  mm: kasan: introduce generic kasan_populate_zero_shadow()
  arm64: introduce VA_START macro - the first kernel virtual address.
  arm64: move PGD_SIZE definition to pgalloc.h
  arm64: add KASAN support
  x86/kasan: switch to generic kasan_populate_zero_shadow()

Linus Walleij (1):
  ARM64: kasan: print memory assignment

 arch/arm64/Kconfig               |   1 +
 arch/arm64/Makefile              |   6 ++
 arch/arm64/include/asm/kasan.h   |  36 +++++++++
 arch/arm64/include/asm/memory.h  |   2 +
 arch/arm64/include/asm/pgalloc.h |   1 +
 arch/arm64/include/asm/pgtable.h |   9 ++-
 arch/arm64/include/asm/string.h  |  16 ++++
 arch/arm64/kernel/arm64ksyms.c   |   3 +
 arch/arm64/kernel/head.S         |   3 +
 arch/arm64/kernel/module.c       |  16 +++-
 arch/arm64/kernel/setup.c        |   2 +
 arch/arm64/lib/memcpy.S          |   3 +
 arch/arm64/lib/memmove.S         |   7 +-
 arch/arm64/lib/memset.S          |   3 +
 arch/arm64/mm/Makefile           |   3 +
 arch/arm64/mm/init.c             |   6 ++
 arch/arm64/mm/kasan_init.c       | 165 +++++++++++++++++++++++++++++++++++++++
 arch/arm64/mm/pgd.c              |   2 -
 arch/x86/Kconfig                 |   5 --
 arch/x86/Makefile                |   2 +
 arch/x86/include/asm/kasan.h     |  21 +++--
 arch/x86/mm/kasan_init_64.c      | 123 ++---------------------------
 include/linux/kasan.h            |   9 ++-
 mm/kasan/Makefile                |   2 +-
 mm/kasan/kasan_init.c            | 151 +++++++++++++++++++++++++++++++++++
 scripts/Makefile.kasan           |   2 +-
 26 files changed, 457 insertions(+), 142 deletions(-)
 create mode 100644 arch/arm64/include/asm/kasan.h
 create mode 100644 arch/arm64/mm/kasan_init.c
 create mode 100644 mm/kasan/kasan_init.c

-- 
2.4.5

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