From patchwork Fri Jan 18 16:18:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 10771055 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CBBFE6C2 for ; Fri, 18 Jan 2019 16:25:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B7CAF2842B for ; Fri, 18 Jan 2019 16:25:05 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A9CDF2F86A; Fri, 18 Jan 2019 16:25:05 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5361F2F8B4 for ; Fri, 18 Jan 2019 16:25:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728657AbfARQYz (ORCPT ); Fri, 18 Jan 2019 11:24:55 -0500 Received: from mout.kundenserver.de ([217.72.192.74]:54399 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728022AbfARQUf (ORCPT ); Fri, 18 Jan 2019 11:20:35 -0500 Received: from wuerfel.lan ([109.192.41.194]) by mrelayeu.kundenserver.de (mreue109 [212.227.15.145]) with ESMTPA (Nemesis) id 1M8QNy-1gouaL0Udc-004VsZ; Fri, 18 Jan 2019 17:19:25 +0100 From: Arnd Bergmann To: y2038@lists.linaro.org, linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org Cc: Arnd Bergmann , 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, benh@kernel.crashing.org, 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, akpm@linux-foundation.org, deepa.kernel@gmail.com, ebiederm@xmission.com, firoz.khan@linaro.org, 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, netdev@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH v2 07/29] ARM: add kexec_file_load system call number Date: Fri, 18 Jan 2019 17:18:13 +0100 Message-Id: <20190118161835.2259170-8-arnd@arndb.de> X-Mailer: git-send-email 2.20.0 In-Reply-To: <20190118161835.2259170-1-arnd@arndb.de> References: <20190118161835.2259170-1-arnd@arndb.de> MIME-Version: 1.0 X-Provags-ID: V03:K1:8ym37e+lD/lgSGacCaoLSHBwvMbYSdoq935/+50m0n+e2+nfjyl Uc3eCCUqAr3iiX9tp3dh/UjTnNU1TWM344t7SmBQecjF8G3qbieGmrEuRnYfdVzVTXxlNMn 1F6pSIpGD86JSkJzsxanqoPTEb+l+XA5OO3U0pzk6a/S0BMyuhTWrH4HTr95PQFlXgEL4sD b/smjhXtOquSiUivlB38g== X-UI-Out-Filterresults: notjunk:1;V03:K0:hPFjMXC73D8=:yIT7bb4MDFSWj86wHD5l4c Dw71KKy4lEMciOZt+W7BOiEuK2mNuN+kh5N3AiCr4vfMUFyOd0gUpMGVvzlD5ys8kVC8UFHy1 GF3XDa3FhTBMA3K+9JRQ8rmAsDSolTFqDYWCMPAT63yZzygeYo+H4Gb28+uNbUdwlsZqY9gO8 6lK6+sEIXt8TvMB4ddTaGomaNQPmxg4p1hEhaovZAfReP98dH5330uzzrgeqRsnqM2eHkKNHE IPPBPHtvsyz2uSE81DXrtfxuBWnljymZkblHoH/MPVnSr/2bCgJGktCOvWDoVamsF7nbJsafo 2OignWTVnOttBAtdSjEfSQ6CDTNo9IioOYs6f/rgrWALcLtl8cQBqMMcwSuRSeg7LAk4hc7Oj vKqxXzmE6UzScOdNEzF+a+2KnoI+oavrpydZ3aezYjXL9WJt6eh/9b1NMWLoLioZhktu7kZ6b mZh1EEbibQK8F64O6oN3sLL4qqNGDpvKpnMdtyBo2RHlZhWm2ACWT6TJIaGxLHEQjzxZGToRN IFf4ybmEY0PVOn3IHZu/nuvhVYHTeILnajyNYSzLFJ3VZ9kru5A/DCKSsLyoeKTCUNnQHigs5 2bl5d22j1GPBmdXFJiXmupqH8HXQEkhm2IhAGe2JkhUkSAvGLFP1YeJ1fCfrGDG34cx2/LUcp JcCpam5vxV5OOFiQEFF/gbY/veubTMQIf5uhL2znlb1HwTgwa3y+NgPSsmX9zdfo3Hj9Ix3G5 AQJldjI7SaGcXfDZb0CIJB58fi1O6B6dUcSGIQ== Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 Acked-by: Catalin Marinas --- 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(-) 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 f15bcbacb8f6..8ca1d4c304f4 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, compat_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