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Commit 80f60e50 authored by Thiago Jung Bauermann's avatar Thiago Jung Bauermann Committed by Michael Ellerman
Browse files

powerpc/kexec: Enable kexec_file_load() syscall 



Define the Kconfig symbol so that the kexec_file_load() code can be
built, and wire up the syscall so that it can be called.

Signed-off-by: default avatarThiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 0d976313

arch/powerpc/Kconfig

+13 −0
Original line number Diff line number Diff line
@@ -465,6 +465,19 @@ config KEXEC 
	  interface is strongly in flux, so no good recommendation can be

	  made.



config KEXEC_FILE

	bool "kexec file based system call"

	select KEXEC_CORE

	select BUILD_BIN2C

	depends on PPC64

	depends on CRYPTO=y

	depends on CRYPTO_SHA256=y

	help

	  This is a new version of the kexec system call. This call is

	  file based and takes in file descriptors as system call arguments

	  for kernel and initramfs as opposed to a list of segments as is the

	  case for the older kexec call.



config RELOCATABLE

	bool "Build a relocatable kernel"

	depends on (PPC64 && !COMPILE_TEST) || (FLATMEM && (44x || FSL_BOOKE))

arch/powerpc/include/asm/systbl.h

+1 −0
Original line number Diff line number Diff line
@@ -386,3 +386,4 @@ SYSCALL(mlock2) 
SYSCALL(copy_file_range)

COMPAT_SYS_SPU(preadv2)

COMPAT_SYS_SPU(pwritev2)

SYSCALL(kexec_file_load)

arch/powerpc/include/asm/unistd.h

+1 −1
Original line number Diff line number Diff line
@@ -12,7 +12,7 @@ 
#include <uapi/asm/unistd.h>





#define NR_syscalls		382

#define NR_syscalls		383



#define __NR__exit __NR_exit

arch/powerpc/include/uapi/asm/unistd.h

+1 −0
Original line number Diff line number Diff line
@@ -392,5 +392,6 @@ 
#define __NR_copy_file_range	379

#define __NR_preadv2		380

#define __NR_pwritev2		381

#define __NR_kexec_file_load	382



#endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */