From: Andrey Konovalov <andreyknvl@google.com>
To: linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org,
dri-devel@lists.freedesktop.org, linux-rdma@vger.kernel.org,
linux-media@vger.kernel.org, kvm@vger.kernel.org,
linux-kselftest@vger.kernel.org
Cc: Mark Rutland <mark.rutland@arm.com>,
Szabolcs Nagy <Szabolcs.Nagy@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Kostya Serebryany <kcc@google.com>,
Felix Kuehling <Felix.Kuehling@amd.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Jacob Bramley <Jacob.Bramley@arm.com>,
Leon Romanovsky <leon@kernel.org>,
Dave Martin <Dave.Martin@arm.com>,
Evgeniy Stepanov <eugenis@google.com>,
Kevin Brodsky <kevin.brodsky@arm.com>,
Kees Cook <keescook@chromium.org>,
Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>,
Andrey Konovalov <andreyknvl@google.com>,
Lee Smith <Lee.Smith@arm.com>,
Alex Williamson <alex.williamson@redhat.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Dmitry Vyukov <dvyukov@google.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Yishai Hadas <yishaih@mellanox.com>,
Jens Wiklander <jens.wiklander@linaro.org>,
Ramana Radhakrishnan <Ramana.Radhakrishnan@arm.com>,
Alexander Deucher <Alexander.Deucher@amd.com>,
Andrew Morton <akpm@linux-foundation.org>,
Robin Murphy <robin.murphy@arm.com>,
Christian Koenig <Christian.Koenig@amd.com>,
Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Subject: [PATCH v15 01/17] uaccess: add untagged_addr definition for other arches
Date: Mon, 6 May 2019 18:30:47 +0200 [thread overview]
Message-ID: <67ae3bd92e590d42af22ef2de0ad37b730a13837.1557160186.git.andreyknvl@google.com> (raw)
In-Reply-To: <cover.1557160186.git.andreyknvl@google.com>
To allow arm64 syscalls to accept tagged pointers from userspace, we must
untag them when they are passed to the kernel. Since untagging is done in
generic parts of the kernel, the untagged_addr macro needs to be defined
for all architectures.
Define it as a noop for architectures other than arm64.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
include/linux/mm.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 6b10c21630f5..44041df804a6 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -99,6 +99,10 @@ extern int mmap_rnd_compat_bits __read_mostly;
#include <asm/pgtable.h>
#include <asm/processor.h>
+#ifndef untagged_addr
+#define untagged_addr(addr) (addr)
+#endif
+
#ifndef __pa_symbol
#define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x), 0))
#endif
--
2.21.0.1020.gf2820cf01a-goog
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next prev parent reply other threads:[~2019-05-06 16:31 UTC|newest]
Thread overview: 99+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-06 16:30 [PATCH v15 00/17] arm64: untag user pointers passed to the kernel Andrey Konovalov
2019-05-06 16:30 ` Andrey Konovalov [this message]
2019-05-29 14:49 ` [PATCH v15 01/17] uaccess: add untagged_addr definition for other arches Khalid Aziz
2019-05-06 16:30 ` [PATCH v15 02/17] arm64: untag user pointers in access_ok and __uaccess_mask_ptr Andrey Konovalov
2019-05-06 16:30 ` [PATCH v15 03/17] lib, arm64: untag user pointers in strn*_user Andrey Konovalov
2019-05-22 10:41 ` Catalin Marinas
2019-05-06 16:30 ` [PATCH v15 04/17] mm: add ksys_ wrappers to memory syscalls Andrey Konovalov
2019-05-22 10:56 ` Catalin Marinas
2019-05-06 16:30 ` [PATCH v15 05/17] arms64: untag user pointers passed " Andrey Konovalov
2019-05-22 11:49 ` Catalin Marinas
2019-05-22 21:16 ` Evgenii Stepanov
2019-05-23 9:04 ` Catalin Marinas
2019-05-24 4:23 ` Evgenii Stepanov
2019-05-24 15:41 ` Andrew Murray
2019-05-25 9:57 ` Catalin Marinas
2019-05-27 9:42 ` Catalin Marinas
2019-05-27 14:37 ` Catalin Marinas
2019-05-28 14:54 ` Andrew Murray
2019-05-28 15:40 ` Catalin Marinas
2019-05-28 15:56 ` Dave Martin
2019-05-28 16:34 ` Catalin Marinas
2019-05-29 12:42 ` Dave Martin
2019-05-29 13:23 ` Catalin Marinas
2019-05-29 15:18 ` Dave Martin
2019-05-28 23:33 ` Khalid Aziz
2019-05-29 14:20 ` Catalin Marinas
2019-05-29 19:16 ` Khalid Aziz
2019-05-30 15:11 ` Catalin Marinas
2019-05-30 16:05 ` Khalid Aziz
2019-05-30 16:57 ` Catalin Marinas
2019-05-28 13:05 ` Catalin Marinas
2019-05-06 16:30 ` [PATCH v15 06/17] mm: untag user pointers in do_pages_move Andrey Konovalov
2019-05-22 11:51 ` Catalin Marinas
2019-05-06 16:30 ` [PATCH v15 07/17] mm, arm64: untag user pointers in mm/gup.c Andrey Konovalov
2019-05-22 11:56 ` Catalin Marinas
2019-05-06 16:30 ` [PATCH v15 08/17] mm, arm64: untag user pointers in get_vaddr_frames Andrey Konovalov
2019-05-06 16:30 ` [PATCH v15 09/17] fs, arm64: untag user pointers in copy_mount_options Andrey Konovalov
2019-05-22 12:09 ` Catalin Marinas
2019-05-06 16:30 ` [PATCH v15 10/17] fs, arm64: untag user pointers in fs/userfaultfd.c Andrey Konovalov
2019-05-06 16:30 ` [PATCH v15 11/17] drm/amdgpu, arm64: untag user pointers Andrey Konovalov
2019-05-07 16:43 ` Kuehling, Felix
2019-05-06 16:30 ` [PATCH v15 12/17] drm/radeon, arm64: untag user pointers in radeon_gem_userptr_ioctl Andrey Konovalov
2019-05-07 16:44 ` Kuehling, Felix
2019-05-06 16:30 ` [PATCH v15 13/17] IB, arm64: untag user pointers in ib_uverbs_(re)reg_mr() Andrey Konovalov
2019-05-06 19:50 ` Jason Gunthorpe
2019-05-07 6:33 ` Leon Romanovsky
2019-05-06 16:31 ` [PATCH v15 14/17] media/v4l2-core, arm64: untag user pointers in videobuf_dma_contig_user_get Andrey Konovalov
2019-05-24 13:13 ` Mauro Carvalho Chehab
2019-05-06 16:31 ` [PATCH v15 15/17] tee, arm64: untag user pointers in tee_shm_register Andrey Konovalov
2019-05-06 16:31 ` [PATCH v15 16/17] vfio/type1, arm64: untag user pointers in vaddr_get_pfn Andrey Konovalov
2019-05-06 16:31 ` [PATCH v15 17/17] selftests, arm64: add a selftest for passing tagged pointers to kernel Andrey Konovalov
2019-05-22 14:16 ` Catalin Marinas
2019-05-31 14:21 ` Andrey Konovalov
2019-05-31 16:22 ` Catalin Marinas
2019-05-17 14:49 ` [PATCH v15 00/17] arm64: untag user pointers passed to the kernel Catalin Marinas
2019-05-20 23:53 ` Evgenii Stepanov
2019-05-21 18:29 ` Catalin Marinas
2019-05-22 0:04 ` Kees Cook
2019-05-22 10:11 ` Catalin Marinas
2019-05-22 15:30 ` enh
2019-05-22 16:35 ` Catalin Marinas
2019-05-22 16:58 ` enh
2019-05-23 15:21 ` Catalin Marinas
2019-05-22 20:47 ` Kees Cook
2019-05-22 23:03 ` Evgenii Stepanov
2019-05-22 23:09 ` enh
2019-05-23 7:34 ` Catalin Marinas
2019-05-23 14:44 ` Catalin Marinas
2019-05-23 15:44 ` enh
2019-05-23 17:00 ` Catalin Marinas
2019-05-23 16:38 ` Kees Cook
2019-05-23 17:43 ` Catalin Marinas
2019-05-23 21:31 ` Kees Cook
2019-05-24 11:20 ` Catalin Marinas
2019-05-28 17:02 ` Catalin Marinas
2019-06-02 5:06 ` Kees Cook
2019-05-22 19:21 ` Kees Cook
2019-05-22 20:15 ` enh
2019-05-23 15:08 ` Catalin Marinas
2019-05-23 17:51 ` Khalid Aziz
2019-05-23 20:11 ` Catalin Marinas
2019-05-23 21:42 ` Khalid Aziz
2019-05-23 21:49 ` Khalid Aziz
2019-05-24 10:11 ` Catalin Marinas
2019-05-24 14:25 ` Khalid Aziz
2019-05-28 14:14 ` Andrey Konovalov
2019-05-29 6:11 ` Christoph Hellwig
2019-05-29 12:12 ` Catalin Marinas
2019-05-30 17:15 ` Catalin Marinas
2019-05-31 14:29 ` Andrey Konovalov
2019-05-31 16:19 ` Catalin Marinas
2019-05-31 16:24 ` Andrey Konovalov
2019-05-31 16:46 ` Catalin Marinas
2019-05-21 18:48 ` Jason Gunthorpe
2019-05-22 13:49 ` Dave Martin
2019-05-23 0:20 ` Jason Gunthorpe
2019-05-23 10:42 ` Dave Martin
2019-05-23 16:57 ` Catalin Marinas
2019-05-24 14:23 ` Dave Martin
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