From: Andrey Ryabinin <ryabinin.a.a@gmail.com>
To: Maciej Wieczor-Retman <m.wieczorretman@pm.me>,
Alexander Potapenko <glider@google.com>,
Andrey Konovalov <andreyknvl@gmail.com>,
Dmitry Vyukov <dvyukov@google.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Thomas Gleixner <tglx@kernel.org>, Ingo Molnar <mingo@redhat.com>,
Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
David Hildenbrand <david@kernel.org>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Vlastimil Babka <vbabka@suse.cz>, Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Michal Hocko <mhocko@suse.com>,
Axel Rasmussen <axelrasmussen@google.com>,
Yuanchu Xie <yuanchu@google.com>, Wei Xu <weixugc@google.com>
Cc: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>,
kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [PATCH v8 04/14] x86/kasan: Add arch specific kasan functions
Date: Fri, 16 Jan 2026 14:35:24 +0100 [thread overview]
Message-ID: <901fa77a-b23d-4268-81aa-fc76846ac73b@gmail.com> (raw)
In-Reply-To: <785eb728e2cc897e05ee709d42214172be481ab9.1768233085.git.m.wieczorretman@pm.me>
On 1/12/26 6:27 PM, Maciej Wieczor-Retman wrote:
> From: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>
>
> KASAN's software tag-based mode needs multiple macros/functions to
> handle tag and pointer interactions - to set, retrieve and reset tags
> from the top bits of a pointer.
>
> Mimic functions currently used by arm64 but change the tag's position to
> bits [60:57] in the pointer.
>
> Signed-off-by: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>
> ---
Reviewed-by: Andrey Ryabinin <ryabinin.a.a@gmail.com>
next prev parent reply other threads:[~2026-01-16 13:36 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-12 17:26 [PATCH v8 00/14] kasan: x86: arm64: KASAN tag-based mode for x86 Maciej Wieczor-Retman
2026-01-12 17:27 ` [PATCH v8 01/14] kasan: sw_tags: Use arithmetic shift for shadow computation Maciej Wieczor-Retman
2026-01-15 22:42 ` Andrey Ryabinin
2026-01-16 13:11 ` Maciej Wieczor-Retman
2026-01-12 17:27 ` [PATCH v8 02/14] kasan: arm64: x86: Make special tags arch specific Maciej Wieczor-Retman
2026-01-13 1:21 ` Andrey Konovalov
2026-01-13 17:32 ` Maciej Wieczor-Retman
2026-01-16 13:32 ` Andrey Ryabinin
2026-01-12 17:27 ` [PATCH v8 04/14] x86/kasan: Add arch specific kasan functions Maciej Wieczor-Retman
2026-01-13 1:21 ` Andrey Konovalov
2026-01-13 16:12 ` Maciej Wieczor-Retman
2026-01-16 13:35 ` Andrey Ryabinin [this message]
2026-01-12 17:27 ` [PATCH v8 06/14] mm/execmem: Untag addresses in EXECMEM_ROX related pointer arithmetic Maciej Wieczor-Retman
2026-01-12 17:28 ` [PATCH v8 13/14] x86/kasan: Logical bit shift for kasan_mem_to_shadow Maciej Wieczor-Retman
2026-01-13 1:21 ` Andrey Konovalov
2026-01-14 16:52 ` Maciej Wieczor-Retman
2026-01-15 3:57 ` Andrey Konovalov
2026-01-15 16:43 ` Maciej Wieczor-Retman
2026-01-17 1:21 ` Andrey Konovalov
2026-01-17 6:53 ` Maciej Wieczór-Retman
2026-01-19 11:40 ` Maciej Wieczor-Retman
2026-01-12 18:29 ` [PATCH v8 00/14] kasan: x86: arm64: KASAN tag-based mode for x86 Andrew Morton
2026-01-12 20:08 ` Maciej Wieczór-Retman
2026-01-12 20:53 ` Andrew Morton
2026-01-13 1:47 ` Andrey Konovalov
2026-01-12 20:27 ` Dave Hansen
2026-01-13 11:47 ` Borislav Petkov
2026-01-13 17:34 ` Andrew Morton
2026-01-22 17:25 ` Maciej Wieczor-Retman
2026-01-13 1:44 ` Andrey Konovalov
2026-01-19 16:33 ` Andrey Ryabinin
2026-01-19 19:43 ` Maciej Wieczor-Retman
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