From: Catalin Marinas <catalin.marinas@arm.com>
To: Andrey Ryabinin <a.ryabinin@samsung.com>
Cc: Will Deacon <will.deacon@arm.com>,
linux-arm-kernel@lists.infradead.org,
Alexey Klimov <klimov.linux@gmail.com>,
Arnd Bergmann <arnd@arndb.de>,
linux-mm@kvack.org, Linus Walleij <linus.walleij@linaro.org>,
x86@kernel.org, linux-kernel@vger.kernel.org,
linux-kbuild@vger.kernel.org,
David Keitel <dkeitel@codeaurora.org>,
Ingo Molnar <mingo@redhat.com>,
Alexander Potapenko <glider@google.com>,
Michal Marek <mmarek@suse.com>, "H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Dmitry Vyukov <dvyukov@google.com>
Subject: Re: [PATCH v4 1/7] x86/kasan: generate KASAN_SHADOW_OFFSET in Makefile
Date: Mon, 27 Jul 2015 17:40:35 +0100 [thread overview]
Message-ID: <20150727164034.GC350@e104818-lin.cambridge.arm.com> (raw)
In-Reply-To: <1437756119-12817-2-git-send-email-a.ryabinin@samsung.com>
On Fri, Jul 24, 2015 at 07:41:53PM +0300, Andrey Ryabinin wrote:
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index b3a1a5d..6d6dd6f 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -255,11 +255,6 @@ config ARCH_SUPPORTS_OPTIMIZED_INLINING
> config ARCH_SUPPORTS_DEBUG_PAGEALLOC
> def_bool y
>
> -config KASAN_SHADOW_OFFSET
> - hex
> - depends on KASAN
> - default 0xdffffc0000000000
> -
> config HAVE_INTEL_TXT
> def_bool y
> depends on INTEL_IOMMU && ACPI
> diff --git a/arch/x86/Makefile b/arch/x86/Makefile
> index 118e6de..c666989 100644
> --- a/arch/x86/Makefile
> +++ b/arch/x86/Makefile
> @@ -39,6 +39,8 @@ ifdef CONFIG_X86_NEED_RELOCS
> LDFLAGS_vmlinux := --emit-relocs
> endif
>
> +KASAN_SHADOW_OFFSET := 0xdffffc0000000000
To keep things simple for x86, can you not just define:
KASAN_SHADOW_OFFSET := $(CONFIG_KASAN_SHADOW_OFFSET)
or, even better, in scripts/Makefile.kasan:
KASAN_SHADOW_OFFSET ?= $(CONFIG_KASAN_SHADOW_OFFSET)
and set it under arch/arm64/Makefile only.
--
Catalin
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next prev parent reply other threads:[~2015-07-27 16:40 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-24 16:41 [PATCH v4 0/7] KASAN for arm64 Andrey Ryabinin
2015-07-24 16:41 ` [PATCH v4 1/7] x86/kasan: generate KASAN_SHADOW_OFFSET in Makefile Andrey Ryabinin
2015-07-27 16:40 ` Catalin Marinas [this message]
2015-07-27 17:52 ` Andrey Ryabinin
2015-07-24 16:41 ` [PATCH v4 2/7] mm: kasan: introduce generic kasan_populate_zero_shadow() Andrey Ryabinin
2015-07-27 14:23 ` Yury
2015-07-27 17:52 ` Andrey Ryabinin
2015-08-10 6:01 ` Aneesh Kumar K.V
2015-08-10 12:00 ` Andrey Ryabinin
2015-07-24 16:41 ` [PATCH v4 3/7] arm64: introduce VA_START macro - the first kernel virtual address Andrey Ryabinin
2015-07-24 16:41 ` [PATCH v4 4/7] arm64: move PGD_SIZE definition to pgalloc.h Andrey Ryabinin
2015-07-24 16:41 ` [PATCH v4 5/7] arm64: add KASAN support Andrey Ryabinin
2015-07-27 15:59 ` Catalin Marinas
2015-07-27 17:53 ` Andrey Ryabinin
2015-07-24 16:41 ` [PATCH v4 6/7] ARM64: kasan: print memory assignment Andrey Ryabinin
2015-07-24 16:41 ` [PATCH v4 7/7] x86/kasan: switch to generic kasan_populate_zero_shadow() Andrey Ryabinin
2015-07-27 16:57 ` Catalin Marinas
2015-07-27 17:53 ` Andrey Ryabinin
2015-07-27 8:13 ` [PATCH v4 0/7] KASAN for arm64 Andrey Ryabinin
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