From: Arnd Bergmann <arnd@arndb.de>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-arch <linux-arch@vger.kernel.org>,
Richard Earnshaw <Richard.Earnshaw@arm.com>,
Szabolcs Nagy <szabolcs.nagy@arm.com>,
Marc Zyngier <maz@kernel.org>,
Kevin Brodsky <kevin.brodsky@arm.com>,
Linux-MM <linux-mm@kvack.org>,
Andrey Konovalov <andreyknvl@google.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Will Deacon <will@kernel.org>, Dave Martin <Dave.Martin@arm.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH 01/22] mm: Reserve asm-generic prot flags 0x10 and 0x20 for arch use
Date: Wed, 11 Dec 2019 20:26:39 +0100 [thread overview]
Message-ID: <CAK8P3a0OxNWPjekT_m55reuopHJeWZs6dm7YTtoLgd39P6y2PQ@mail.gmail.com> (raw)
In-Reply-To: <20191211184027.20130-2-catalin.marinas@arm.com>
On Wed, Dec 11, 2019 at 7:40 PM Catalin Marinas <catalin.marinas@arm.com> wrote:
>
> From: Dave Martin <Dave.Martin@arm.com>
>
> The asm-generic/mman.h definitions are used by a few architectures that
> also define arch-specific PROT flags with value 0x10 and 0x20. This
> currently applies to sparc and powerpc for 0x10, while arm64 will soon
> join with 0x10 and 0x20.
>
> To help future maintainers, document the use of this flag in the
> asm-generic header too.
>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Dave Martin <Dave.Martin@arm.com>
> [catalin.marinas@arm.com: reserve 0x20 as well]
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@arndb.de>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: Linux ARM <linux-arm-kernel@lists.infradead.org>,
Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Szabolcs Nagy <szabolcs.nagy@arm.com>,
Richard Earnshaw <Richard.Earnshaw@arm.com>,
Kevin Brodsky <kevin.brodsky@arm.com>,
Andrey Konovalov <andreyknvl@google.com>,
Linux-MM <linux-mm@kvack.org>,
linux-arch <linux-arch@vger.kernel.org>,
Dave Martin <Dave.Martin@arm.com>
Subject: Re: [PATCH 01/22] mm: Reserve asm-generic prot flags 0x10 and 0x20 for arch use
Date: Wed, 11 Dec 2019 20:26:39 +0100 [thread overview]
Message-ID: <CAK8P3a0OxNWPjekT_m55reuopHJeWZs6dm7YTtoLgd39P6y2PQ@mail.gmail.com> (raw)
Message-ID: <20191211192639.M7UrtkgvE72HIi9qw2aYVVtIYwMAPCh5v4QoasyGGuw@z> (raw)
In-Reply-To: <20191211184027.20130-2-catalin.marinas@arm.com>
On Wed, Dec 11, 2019 at 7:40 PM Catalin Marinas <catalin.marinas@arm.com> wrote:
>
> From: Dave Martin <Dave.Martin@arm.com>
>
> The asm-generic/mman.h definitions are used by a few architectures that
> also define arch-specific PROT flags with value 0x10 and 0x20. This
> currently applies to sparc and powerpc for 0x10, while arm64 will soon
> join with 0x10 and 0x20.
>
> To help future maintainers, document the use of this flag in the
> asm-generic header too.
>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Dave Martin <Dave.Martin@arm.com>
> [catalin.marinas@arm.com: reserve 0x20 as well]
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
next prev parent reply other threads:[~2019-12-11 19:26 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-11 18:40 [PATCH 00/22] arm64: Memory Tagging Extension user-space support Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 01/22] mm: Reserve asm-generic prot flags 0x10 and 0x20 for arch use Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 19:26 ` Arnd Bergmann [this message]
2019-12-11 19:26 ` Arnd Bergmann
2019-12-11 18:40 ` [PATCH 02/22] kbuild: Add support for 'as-instr' to be used in Kconfig files Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-12 5:03 ` Masahiro Yamada
2019-12-12 5:03 ` Masahiro Yamada
2019-12-11 18:40 ` [PATCH 03/22] arm64: alternative: Allow alternative_insn to always issue the first instruction Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 04/22] arm64: Use macros instead of hard-coded constants for MAIR_EL1 Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 05/22] arm64: mte: system register definitions Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 06/22] arm64: mte: CPU feature detection and initial sysreg configuration Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 07/22] arm64: mte: Use Normal Tagged attributes for the linear map Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 08/22] arm64: mte: Assembler macros and default architecture for .S files Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 09/22] arm64: mte: Tags-aware clear_page() implementation Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 10/22] arm64: mte: Tags-aware copy_page() implementation Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 11/22] arm64: Tags-aware memcmp_pages() implementation Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 12/22] arm64: mte: Add specific SIGSEGV codes Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 19:31 ` Arnd Bergmann
2019-12-11 19:31 ` Arnd Bergmann
2019-12-12 9:34 ` Catalin Marinas
2019-12-12 9:34 ` Catalin Marinas
2019-12-12 18:26 ` Eric W. Biederman
2019-12-12 18:26 ` Eric W. Biederman
2019-12-17 17:48 ` Catalin Marinas
2019-12-17 17:48 ` Catalin Marinas
2019-12-17 20:06 ` Eric W. Biederman
2019-12-17 20:06 ` Eric W. Biederman
2019-12-11 18:40 ` [PATCH 13/22] arm64: mte: Handle synchronous and asynchronous tag check faults Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-14 1:43 ` Peter Collingbourne
2019-12-14 1:43 ` Peter Collingbourne
2019-12-17 18:01 ` Catalin Marinas
2019-12-17 18:01 ` Catalin Marinas
2019-12-20 1:36 ` [PATCH] arm64: mte: Do not service syscalls after async tag fault Peter Collingbourne
2019-12-20 1:36 ` Peter Collingbourne
2020-02-12 11:09 ` Catalin Marinas
2020-02-18 21:59 ` Peter Collingbourne
2020-02-19 16:16 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 14/22] mm: Introduce arch_calc_vm_flag_bits() Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 15/22] arm64: mte: Add PROT_MTE support to mmap() and mprotect() Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2020-01-21 22:06 ` Peter Collingbourne
2019-12-11 18:40 ` [PATCH 16/22] mm: Introduce arch_validate_flags() Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 17/22] arm64: mte: Validate the PROT_MTE request via arch_validate_flags() Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 18/22] mm: Allow arm64 mmap(PROT_MTE) on RAM-based files Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 19/22] arm64: mte: Allow user control of the tag check mode via prctl() Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-19 20:32 ` Peter Collingbourne
2019-12-19 20:32 ` Peter Collingbourne
2019-12-20 1:48 ` [PATCH] arm64: mte: Clear SCTLR_EL1.TCF0 on exec Peter Collingbourne
2019-12-20 1:48 ` Peter Collingbourne
2020-02-12 17:03 ` Catalin Marinas
2019-12-27 14:34 ` [PATCH 19/22] arm64: mte: Allow user control of the tag check mode via prctl() Kevin Brodsky
2019-12-27 14:34 ` Kevin Brodsky
2020-02-12 11:45 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 20/22] arm64: mte: Allow user control of the excluded tags " Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-16 14:20 ` Kevin Brodsky
2019-12-16 14:20 ` Kevin Brodsky
2019-12-16 17:30 ` Peter Collingbourne
2019-12-16 17:30 ` Peter Collingbourne
2019-12-17 17:56 ` Catalin Marinas
2019-12-17 17:56 ` Catalin Marinas
2020-06-22 17:17 ` Catalin Marinas
2020-06-22 19:00 ` Peter Collingbourne
2020-06-23 16:42 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 21/22] arm64: mte: Kconfig entry Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-11 18:40 ` [PATCH 22/22] arm64: mte: Add Memory Tagging Extension documentation Catalin Marinas
2019-12-11 18:40 ` Catalin Marinas
2019-12-24 15:03 ` Kevin Brodsky
2019-12-24 15:03 ` Kevin Brodsky
2019-12-13 18:05 ` [PATCH 00/22] arm64: Memory Tagging Extension user-space support Peter Collingbourne
2019-12-13 18:05 ` Peter Collingbourne
2020-02-13 11:23 ` Catalin Marinas
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