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authorLinus Torvalds <torvalds@linux-foundation.org>2018-04-20 08:01:38 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-20 08:01:38 -0700
commitc2d94c5214905fd67ddfd7ad21729ca129e4e02d (patch)
treea24f0c469e42983a1bf5877f430e63ededfcb808 /arch/s390/Kconfig
parent87ef12027b9b1dd0e0b12cf311fbcb19f9d92539 (diff)
parentfae764912153065ea55eda47f834e0764a54df94 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes and kexec-file-load from Martin Schwidefsky: "After the common code kexec patches went in via Andrew we can now push the architecture parts to implement the kexec-file-load system call. Plus a few more bug fixes and cleanups, this includes an update to the default configurations" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/signal: cleanup uapi struct sigaction s390: rename default_defconfig to debug_defconfig s390: remove gcov defconfig s390: update defconfig s390: add support for IBM z14 Model ZR1 s390: remove couple of duplicate includes s390/boot: remove unused COMPILE_VERSION and ccflags-y s390/nospec: include cpu.h s390/decompressor: Ignore file vmlinux.bin.full s390/kexec_file: add generated files to .gitignore s390/Kconfig: Move kexec config options to "Processor type and features" s390/kexec_file: Add ELF loader s390/kexec_file: Add crash support to image loader s390/kexec_file: Add image loader s390/kexec_file: Add kexec_file_load system call s390/kexec_file: Add purgatory s390/kexec_file: Prepare setup.h for kexec_file_load s390/smsgiucv: disable SMSG on module unload s390/sclp: avoid potential usage of uninitialized value
Diffstat (limited to 'arch/s390/Kconfig')
-rw-r--r--arch/s390/Kconfig32
1 files changed, 24 insertions, 8 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 32a0d5b958bf..199ac3e4da1d 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -47,10 +47,6 @@ config PGSTE
config ARCH_SUPPORTS_DEBUG_PAGEALLOC
def_bool y
-config KEXEC
- def_bool y
- select KEXEC_CORE
-
config AUDIT_ARCH
def_bool y
@@ -290,12 +286,12 @@ config MARCH_Z13
older machines.
config MARCH_Z14
- bool "IBM z14"
+ bool "IBM z14 ZR1 and z14"
select HAVE_MARCH_Z14_FEATURES
help
- Select this to enable optimizations for IBM z14 (3906 series).
- The kernel will be slightly faster but will not work on older
- machines.
+ Select this to enable optimizations for IBM z14 ZR1 and z14 (3907
+ and 3906 series). The kernel will be slightly faster but will not
+ work on older machines.
endchoice
@@ -525,6 +521,26 @@ source kernel/Kconfig.preempt
source kernel/Kconfig.hz
+config KEXEC
+ def_bool y
+ select KEXEC_CORE
+
+config KEXEC_FILE
+ bool "kexec file based system call"
+ select KEXEC_CORE
+ select BUILD_BIN2C
+ depends on CRYPTO
+ depends on CRYPTO_SHA256
+ depends on CRYPTO_SHA256_S390
+ help
+ Enable the kexec file based system call. In contrast to the normal
+ kexec system call this system call takes file descriptors for the
+ kernel and initramfs as arguments.
+
+config ARCH_HAS_KEXEC_PURGATORY
+ def_bool y
+ depends on KEXEC_FILE
+
config ARCH_RANDOM
def_bool y
prompt "s390 architectural random number generation API"