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authorChristian Borntraeger <borntraeger@de.ibm.com>2008-06-20 15:24:18 +0200
committerRusty Russell <rusty@rustcorp.com.au>2008-07-25 12:06:07 +1000
commitfaeba830b086bc9e58748869054e994cb09693cd (patch)
tree5d2f2beb6b3ae012c7eedaa48bc1845cb156945f /arch/s390
parent7721c494a28e06543a3d6aa412957aa783a4a531 (diff)
s390: use virtio_console for KVM on s390
This patch enables virtio_console as the default console on kvm for s390. We currently use the same notify hack as lguest for early console output. I will try to address this for lguest and s390 later. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/Kconfig1
-rw-r--r--arch/s390/kernel/setup.c4
2 files changed, 4 insertions, 1 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index eb530b4128b..2ed88122be9 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -565,6 +565,7 @@ bool "s390 guest support (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
endmenu
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index b358e18273b..62122bad1e3 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -54,6 +54,7 @@
#include <asm/sections.h>
#include <asm/ebcdic.h>
#include <asm/compat.h>
+#include <asm/kvm_virtio.h>
long psw_kernel_bits = (PSW_BASE_BITS | PSW_MASK_DAT | PSW_ASC_PRIMARY |
PSW_MASK_MCHECK | PSW_DEFAULT_KEY);
@@ -766,7 +767,8 @@ setup_arch(char **cmdline_p)
printk("We are running under VM (64 bit mode)\n");
else if (MACHINE_IS_KVM) {
printk("We are running under KVM (64 bit mode)\n");
- add_preferred_console("ttyS", 1, NULL);
+ add_preferred_console("hvc", 0, NULL);
+ s390_virtio_console_init();
} else
printk("We are running native (64 bit mode)\n");
#endif /* CONFIG_64BIT */