From: Szabolcs Nagy <szabolcs.nagy@arm.com>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org,
linux-arch@vger.kernel.org, Will Deacon <will@kernel.org>,
Dave P Martin <Dave.Martin@arm.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Kevin Brodsky <kevin.brodsky@arm.com>,
Andrey Konovalov <andreyknvl@google.com>,
Peter Collingbourne <pcc@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
libc-alpha@sourceware.org, nd@arm.com
Subject: Re: [PATCH v6 26/26] arm64: mte: Add Memory Tagging Extension documentation
Date: Thu, 9 Jul 2020 10:32:54 +0100 [thread overview]
Message-ID: <20200709093253.GI32219@arm.com> (raw)
In-Reply-To: <20200703153718.16973-27-catalin.marinas@arm.com>
The 07/03/2020 16:37, Catalin Marinas wrote:
> + /*
> + * To be compiled with -march=armv8.5-a+memtag
> + */
> + #include <errno.h>
> + #include <stdio.h>
> + #include <stdlib.h>
> + #include <unistd.h>
> + #include <sys/auxv.h>
> + #include <sys/mman.h>
> + #include <sys/prctl.h>
the example should now include stdint.h
> + #define insert_random_tag(ptr) ({ \
> + uint64_t __val; \
> + asm("irg %0, %1" : "=r" (__val) : "r" (ptr)); \
> + __val; \
> + })
WARNING: multiple messages have this Message-ID (diff)
From: Szabolcs Nagy <szabolcs.nagy@arm.com>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-arch@vger.kernel.org, nd@arm.com,
libc-alpha@sourceware.org, Peter Collingbourne <pcc@google.com>,
Andrey Konovalov <andreyknvl@google.com>,
Kevin Brodsky <kevin.brodsky@arm.com>,
linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Will Deacon <will@kernel.org>,
Dave P Martin <Dave.Martin@arm.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v6 26/26] arm64: mte: Add Memory Tagging Extension documentation
Date: Thu, 9 Jul 2020 10:32:54 +0100 [thread overview]
Message-ID: <20200709093253.GI32219@arm.com> (raw)
In-Reply-To: <20200703153718.16973-27-catalin.marinas@arm.com>
The 07/03/2020 16:37, Catalin Marinas wrote:
> + /*
> + * To be compiled with -march=armv8.5-a+memtag
> + */
> + #include <errno.h>
> + #include <stdio.h>
> + #include <stdlib.h>
> + #include <unistd.h>
> + #include <sys/auxv.h>
> + #include <sys/mman.h>
> + #include <sys/prctl.h>
the example should now include stdint.h
> + #define insert_random_tag(ptr) ({ \
> + uint64_t __val; \
> + asm("irg %0, %1" : "=r" (__val) : "r" (ptr)); \
> + __val; \
> + })
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next prev parent reply other threads:[~2020-07-09 9:33 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-03 15:36 [PATCH v6 00/26] arm64: Memory Tagging Extension user-space support Catalin Marinas
2020-07-03 15:36 ` Catalin Marinas
2020-07-03 15:36 ` [PATCH v6 01/26] arm64: mte: system register definitions Catalin Marinas
2020-07-03 15:36 ` Catalin Marinas
2020-07-03 15:36 ` [PATCH v6 02/26] arm64: mte: CPU feature detection and initial sysreg configuration Catalin Marinas
2020-07-03 15:36 ` Catalin Marinas
2020-07-13 10:08 ` Steven Price
2020-07-13 10:08 ` Steven Price
2020-07-13 17:45 ` Catalin Marinas
2020-07-13 17:45 ` Catalin Marinas
2020-07-03 15:36 ` [PATCH v6 03/26] arm64: mte: Use Normal Tagged attributes for the linear map Catalin Marinas
2020-07-03 15:36 ` Catalin Marinas
2020-07-03 15:36 ` [PATCH v6 04/26] arm64: mte: Add specific SIGSEGV codes Catalin Marinas
2020-07-03 15:36 ` Catalin Marinas
2020-07-03 15:36 ` [PATCH v6 05/26] arm64: mte: Handle synchronous and asynchronous tag check faults Catalin Marinas
2020-07-03 15:36 ` Catalin Marinas
2020-07-03 15:36 ` [PATCH v6 06/26] mm: Add PG_arch_2 page flag Catalin Marinas
2020-07-03 15:36 ` Catalin Marinas
2020-07-06 8:24 ` David Hildenbrand
2020-07-06 8:24 ` David Hildenbrand
2020-07-06 11:21 ` Catalin Marinas
2020-07-06 11:21 ` Catalin Marinas
2020-07-06 12:42 ` David Hildenbrand
2020-07-06 12:42 ` David Hildenbrand
2020-07-03 15:36 ` [PATCH v6 07/26] mm: Preserve the PG_arch_* flags in __split_huge_page_tail() Catalin Marinas
2020-07-03 15:36 ` Catalin Marinas
2020-07-06 14:16 ` David Hildenbrand
2020-07-06 14:16 ` David Hildenbrand
2020-07-06 16:30 ` Catalin Marinas
2020-07-06 16:30 ` Catalin Marinas
2020-07-06 17:56 ` David Hildenbrand
2020-07-06 17:56 ` David Hildenbrand
2020-07-08 12:17 ` Catalin Marinas
2020-07-08 12:17 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 08/26] arm64: mte: Clear the tags when a page is mapped in user-space with PROT_MTE Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 09/26] arm64: mte: Tags-aware copy_{user_,}highpage() implementations Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 09/26] arm64: mte: Tags-aware copy_{user_, }highpage() implementations Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 10/26] arm64: Avoid unnecessary clear_user_page() indirection Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 11/26] arm64: mte: Tags-aware aware memcmp_pages() implementation Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 12/26] mm: Introduce arch_calc_vm_flag_bits() Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 13/26] arm64: mte: Add PROT_MTE support to mmap() and mprotect() Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 14/26] mm: Introduce arch_validate_flags() Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 15/26] arm64: mte: Validate the PROT_MTE request via arch_validate_flags() Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 16/26] mm: Allow arm64 mmap(PROT_MTE) on RAM-based files Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 17/26] arm64: mte: Allow user control of the tag check mode via prctl() Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 18/26] arm64: mte: Allow user control of the generated random tags " Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 19/26] arm64: mte: Restore the GCR_EL1 register after a suspend Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 20/26] arm64: mte: Add PTRACE_{PEEK,POKE}MTETAGS support Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-09 14:41 ` Luis Machado
2020-07-09 14:41 ` Luis Machado
2020-07-03 15:37 ` [PATCH v6 21/26] fs: Handle intra-page faults in copy_mount_options() Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 22/26] mm: Add arch hooks for saving/restoring tags Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 23/26] arm64: mte: Enable swap of tagged pages Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 24/26] arm64: mte: Save tags when hibernating Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 25/26] arm64: mte: Kconfig entry Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-03 15:37 ` [PATCH v6 26/26] arm64: mte: Add Memory Tagging Extension documentation Catalin Marinas
2020-07-03 15:37 ` Catalin Marinas
2020-07-09 9:32 ` Szabolcs Nagy [this message]
2020-07-09 9:32 ` Szabolcs Nagy
2020-07-09 14:43 ` Catalin Marinas
2020-07-09 14:43 ` Catalin Marinas
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