From cd1834591fe9564720ac4b0193bf1c790fe89f0d Mon Sep 17 00:00:00 2001 From: Heinz Graalfs Date: Mon, 11 Jun 2012 16:06:59 +0200 Subject: KVM: s390: Perform early event mask processing during boot For processing under KVM it is required to detect the actual SCLP console type in order to set it as preferred console. Signed-off-by: Heinz Graalfs Acked-by: Heiko Carstens Acked-by: Peter Oberparleiter Signed-off-by: Cornelia Huck Signed-off-by: Marcelo Tosatti --- arch/s390/include/asm/sclp.h | 2 ++ arch/s390/kernel/setup.c | 12 +++++++++--- 2 files changed, 11 insertions(+), 3 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index bf238c55740b..173f07aaeb2b 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -55,5 +55,7 @@ int sclp_chp_configure(struct chp_id chpid); int sclp_chp_deconfigure(struct chp_id chpid); int sclp_chp_read_info(struct sclp_chp_info *info); void sclp_get_ipl_info(struct sclp_ipl_info *info); +bool sclp_has_linemode(void); +bool sclp_has_vt220(void); #endif /* _ASM_S390_SCLP_H */ diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 489d1d8d96b0..e86bca6f975c 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -63,6 +63,7 @@ #include #include #include +#include #include "entry.h" long psw_kernel_bits = PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_ASC_PRIMARY | @@ -138,9 +139,14 @@ __setup("condev=", condev_setup); static void __init set_preferred_console(void) { - if (MACHINE_IS_KVM) - add_preferred_console("hvc", 0, NULL); - else if (CONSOLE_IS_3215 || CONSOLE_IS_SCLP) + if (MACHINE_IS_KVM) { + if (sclp_has_vt220()) + add_preferred_console("ttyS", 1, NULL); + else if (sclp_has_linemode()) + add_preferred_console("ttyS", 0, NULL); + else + add_preferred_console("hvc", 0, NULL); + } else if (CONSOLE_IS_3215 || CONSOLE_IS_SCLP) add_preferred_console("ttyS", 0, NULL); else if (CONSOLE_IS_3270) add_preferred_console("tty3270", 0, NULL); -- cgit v1.2.3