[PATCH 07/15] ARM: add kexec_file_load system call number
From: Arnd Bergmann <arnd@arndb.de>
Date: 2019-01-10 16:26:31
Also in:
linux-alpha, linux-api, linux-mips, linux-sh, linuxppc-dev, lkml, sparclinux
Subsystem:
arm port, arm64 port (aarch64 architecture), the rest · Maintainers:
Russell King, Catalin Marinas, Will Deacon, Linus Torvalds
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 <arnd@arndb.de> --- 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 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
--
2.20.0
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