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authorJonathan Corbet <corbet@lwn.net>2018-04-28 01:13:20 +0200
committerJonathan Corbet <corbet@lwn.net>2018-04-28 01:13:20 +0200
commitccf2b067948a8f90fc3d7990c57283e7e404d004 (patch)
tree298e69b6f3e1eef45ac50ba68abe3dd175c4dc8c /arch/s390/Kconfig
parentdocs/admin-guide/mm: convert plain text cross references to hyperlinks (diff)
parentLinux 4.17-rc2 (diff)
downloadlinux-ccf2b067948a8f90fc3d7990c57283e7e404d004.tar.xz
linux-ccf2b067948a8f90fc3d7990c57283e7e404d004.zip
Merge tag 'v4.17-rc2' into docs-next
Merge -rc2 to pick up the changes to Documentation/core-api/kernel-api.rst that hit mainline via the networking tree. In their absence, subsequent patches cannot be applied.
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"