From patchwork Thu Jan 10 16:24:27 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 155200 Delivered-To: patch@linaro.org Received: by 2002:a02:48:0:0:0:0:0 with SMTP id 69csp2086346jaa; Thu, 10 Jan 2019 08:26:32 -0800 (PST) X-Google-Smtp-Source: ALg8bN5KDgJb5J8JMfuHVBJk0MFJHjQF9Drje9kivepBmVtPaZ2D3A16lfGegZKgkAzn0ygV1wVe X-Received: by 2002:a17:902:541:: with SMTP id 59mr11167300plf.88.1547137592510; Thu, 10 Jan 2019 08:26:32 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1547137592; cv=none; d=google.com; s=arc-20160816; b=j7m2SUMJMLntff/cKqvnaXyRmKpiKUWYp9nbVF5cOgWh+23toBKGBR3Yw2uarDGdlt 6lfA3P1+pqrPfZSscQXacGiw5ajAnwY7yVT6mxp6C4U1eIM8VUcuFTFqYh6r+0hWfxf8 Sh9Ovt8IbaSkOCCrIrX7LmPhro9itUcQGVCmWA/Ozbgks6CabNel2ALnLgXfz5O4lk8d CRwdo+EpFG+wJX8eNmy4hJZgA+MkM5mVjKJn9uL4rNfI9KBJhXBjzNKAbgCQPa2KIQqc PrkQZd7JcOapDHyHpDsiMTVLkgdsu5BwvxPZjkDaWjb0KtSm93GcgJI3iWA9Yt2lQpeg h/YQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from; bh=QoPhhEZ2jXNzIzZ7deo0p8UYhWQNEriuuQJzYT8rLOE=; b=XB52EvLVtjthyMXpTKqiT/vTYoRxNSKTOMDbRKl18km24mNCtKgBrRF8ZQZLshHFUD s5S6biRaM23WM6OmHksWJUi/h+NPnXdb8A6CJ/0HcaxAGb6NUPdIZSkxjRkjTIV2nONM nkpEvBk7WvZzBRo4dinhoN+pyd/LASDkWsGKEt6868eExBKPTzly0uWFCb8nyFUhBwtN 0+BSqfwJlEXqdY1nkMe/6TQg15S/PFacHg4wDLKiaKAR5HwRNjJI5kvreOW/bNNEfIFK 0nE3sHF5CjKznZBel0TEor4QIdc1z3YajrxX1VB+zVXj5YXXKCPM63H9Xy71FfqzO0ls 86/g== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id p5si2744605pls.338.2019.01.10.08.26.32; Thu, 10 Jan 2019 08:26:32 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729971AbfAJQ03 (ORCPT + 31 others); Thu, 10 Jan 2019 11:26:29 -0500 Received: from mout.kundenserver.de ([217.72.192.75]:43163 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729916AbfAJQ0Z (ORCPT ); Thu, 10 Jan 2019 11:26:25 -0500 Received: from wuerfel.lan ([109.192.41.194]) by mrelayeu.kundenserver.de (mreue108 [212.227.15.145]) with ESMTPA (Nemesis) id 1M26n9-1gjYwt2XdZ-002VJW; Thu, 10 Jan 2019 17:25:14 +0100 From: Arnd Bergmann To: y2038@lists.linaro.org, linux-api@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Arnd Bergmann , ink@jurassic.park.msu.ru, mattst88@gmail.com, linux@armlinux.org.uk, catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com, geert@linux-m68k.org, monstr@monstr.eu, paul.burton@mips.com, deller@gmx.de, mpe@ellerman.id.au, schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com, dalias@libc.org, davem@davemloft.net, luto@kernel.org, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, x86@kernel.org, jcmvbkbc@gmail.com, firoz.khan@linaro.org, ebiederm@xmission.com, deepa.kernel@gmail.com, linux@dominikbrodowski.net, akpm@linux-foundation.org, dave@stgolabs.net, linux-alpha@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org Subject: [PATCH 07/15] ARM: add kexec_file_load system call number Date: Thu, 10 Jan 2019 17:24:27 +0100 Message-Id: <20190110162435.309262-8-arnd@arndb.de> X-Mailer: git-send-email 2.20.0 In-Reply-To: <20190110162435.309262-1-arnd@arndb.de> References: <20190110162435.309262-1-arnd@arndb.de> MIME-Version: 1.0 X-Provags-ID: V03:K1:bbQTa8+RVq8uOU5pbxDK+0/4n2oFwdb20J9rbCJvp69tR6LbpUE BGw9PvuvotSd1z/CxUlN3LgFpu8c2eaVfhJU913d+y+4OuiKFe0x+5pUiPKr+A8JyoqUNYl +HzTAqMZP6muHMdLv1v6FLhgS7jrtc4eJiWfRbo6++zUEUKkS/plrzdPDX4N3ebSRZ82vdU 29ipN8xprnY8eaAdBUF1A== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1; V03:K0:KcIkOw8POYU=:PlPoKFpPERWmgM//oISQHu FSulXma/Pg8PEBbrHXiPuKmqgQPSJjkYE+IphJVFUZAY6EDeu6AtFVVptEDSdANsrovpTXcAL b/AS9w9/SN/itOc8+uv+gP7/lQwmYzvDK1BbwMZpnXwYFjfMvbHPoKh9HcCWPXrhFDSGmw+8y 5noFZR9dcb/SHixiXSpF1Uzzrt/1D05eMzRme6bDd6MQ8vzxvH9RxaowXKWyPsrHShPT5Yns3 RvFMOs0GUK3O83DVUX7KxpyabIrqW2LWJqx+aQ/5s1+2NDh5iBfmAYGenrjOjg1Dw7D3x2DO6 CbwGY7gKDYkp0Xv059QhC7u7F1tqgEzxTdrIb4K+LJQWNhFWZE6dFMlppU8my+3kMD+cIT6a4 /lKUb9S1bXaWBFRozDTYAQ/dWsNDdcosUEbHB8AsA5zHlOClTE881gOj7PkZjhSIyEpiIEioD iBQFivwkpvXegsxBX3XNPos5ITLYPP00OJlLDCNuDqXAAMqMGQWMyaOHiSPo+J0RuYfofVFUk +ZA+taJ3UVicsNsNzgjrOb/MA1fkK79L0NYP12Nqoq7c8R8vhby74mvgU8cyLD8zYnzaa6jLH 4nGKiLGdIzNVujVY6D9aWQawS+VNaFBXbqJ55jmmne047urmDt0vQV5Lg53Yze4OpTMtc1ZKL bEcAVanw4q5TBWN6nFcFgDqVzMcE+qwbf76mZR1JQw1kZojx200VU6Wc77Ggq+t14WHPxEt3u fc4ZKBNefarvA8bAMh25iORuVAYJ+Kk4mxSxzQ== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org A couple of architectures including arm64 already implement the kexec_file_load system call, on many others we have assigned a system call number for it, but not implemented it yet. Adding the number in arch/arm/ lets us use the system call on arm64 systems in compat mode, and also reduces the number of differences between architectures. If we want to implement kexec_file_load on ARM in the future, the number assignment means that kexec tools can already be built with the now current set of kernel headers. Signed-off-by: Arnd Bergmann --- arch/arm/tools/syscall.tbl | 1 + arch/arm64/include/asm/unistd.h | 2 +- arch/arm64/include/asm/unistd32.h | 2 ++ 3 files changed, 4 insertions(+), 1 deletion(-) -- 2.20.0 diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl index 86de9eb34296..20ed7e026723 100644 --- a/arch/arm/tools/syscall.tbl +++ b/arch/arm/tools/syscall.tbl @@ -415,3 +415,4 @@ 398 common rseq sys_rseq 399 common io_pgetevents sys_io_pgetevents 400 common migrate_pages sys_migrate_pages +401 common kexec_file_load sys_kexec_file_load diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h index 261216c3336e..2c30e6f145ff 100644 --- a/arch/arm64/include/asm/unistd.h +++ b/arch/arm64/include/asm/unistd.h @@ -44,7 +44,7 @@ #define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE + 5) #define __ARM_NR_COMPAT_END (__ARM_NR_COMPAT_BASE + 0x800) -#define __NR_compat_syscalls 401 +#define __NR_compat_syscalls 402 #endif #define __ARCH_WANT_SYS_CLONE diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h index 355fe2bc035b..19f3f58b6146 100644 --- a/arch/arm64/include/asm/unistd32.h +++ b/arch/arm64/include/asm/unistd32.h @@ -823,6 +823,8 @@ __SYSCALL(__NR_rseq, sys_rseq) __SYSCALL(__NR_io_pgetevents, compat_sys_io_pgetevents) #define __NR_migrate_pages 400 __SYSCALL(__NR_migrate_pages, sys_migrate_pages) +#define __NR_kexec_file_load 401 +__SYSCALL(__NR_kexec_file_load, sys_kexec_file_load) /* * Please add new compat syscalls above this comment and update