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-rw-r--r--arch/s390/Kconfig10
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 8d41908e2513..70b7645ce745 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -74,9 +74,12 @@ config S390
select HAVE_KPROBES
select HAVE_KRETPROBES
select HAVE_KVM if 64BIT
+ select HAVE_ARCH_TRACEHOOK
source "init/Kconfig"
+source "kernel/Kconfig.freezer"
+
menu "Base setup"
comment "Processor type and features"
@@ -564,13 +567,16 @@ config ZFCPDUMP
Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this.
config S390_GUEST
-bool "s390 guest support (EXPERIMENTAL)"
+bool "s390 guest support for KVM (EXPERIMENTAL)"
depends on 64BIT && EXPERIMENTAL
select VIRTIO
select VIRTIO_RING
select VIRTIO_CONSOLE
help
- Select this option if you want to run the kernel under s390 linux
+ Select this option if you want to run the kernel as a guest under
+ the KVM hypervisor. This will add detection for KVM as well as a
+ virtio transport. If KVM is detected, the virtio console will be
+ the default console.
endmenu
source "net/Kconfig"