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Diffstat (limited to 'arch/s390/kernel/setup.c')
-rw-r--r--arch/s390/kernel/setup.c41
1 files changed, 22 insertions, 19 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 489d1d8d96b..f86c81e13c3 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -1,8 +1,6 @@
/*
- * arch/s390/kernel/setup.c
- *
* S390 version
- * Copyright (C) IBM Corp. 1999,2012
+ * Copyright IBM Corp. 1999, 2012
* Author(s): Hartmut Penner (hp@de.ibm.com),
* Martin Schwidefsky (schwidefsky@de.ibm.com)
*
@@ -63,6 +61,7 @@
#include <asm/kvm_virtio.h>
#include <asm/diag.h>
#include <asm/os_info.h>
+#include <asm/sclp.h>
#include "entry.h"
long psw_kernel_bits = PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_ASC_PRIMARY |
@@ -138,9 +137,14 @@ __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);
@@ -298,8 +302,8 @@ static int __init parse_vmalloc(char *arg)
}
early_param("vmalloc", parse_vmalloc);
-unsigned int user_mode = HOME_SPACE_MODE;
-EXPORT_SYMBOL_GPL(user_mode);
+unsigned int addressing_mode = HOME_SPACE_MODE;
+EXPORT_SYMBOL_GPL(addressing_mode);
static int set_amode_primary(void)
{
@@ -324,7 +328,7 @@ static int set_amode_primary(void)
*/
static int __init early_parse_switch_amode(char *p)
{
- user_mode = PRIMARY_SPACE_MODE;
+ addressing_mode = PRIMARY_SPACE_MODE;
return 0;
}
early_param("switch_amode", early_parse_switch_amode);
@@ -332,9 +336,9 @@ early_param("switch_amode", early_parse_switch_amode);
static int __init early_parse_user_mode(char *p)
{
if (p && strcmp(p, "primary") == 0)
- user_mode = PRIMARY_SPACE_MODE;
+ addressing_mode = PRIMARY_SPACE_MODE;
else if (!p || strcmp(p, "home") == 0)
- user_mode = HOME_SPACE_MODE;
+ addressing_mode = HOME_SPACE_MODE;
else
return 1;
return 0;
@@ -343,7 +347,7 @@ early_param("user_mode", early_parse_user_mode);
static void setup_addressing_mode(void)
{
- if (user_mode == PRIMARY_SPACE_MODE) {
+ if (addressing_mode == PRIMARY_SPACE_MODE) {
if (set_amode_primary())
pr_info("Address spaces switched, "
"mvcos available\n");
@@ -430,10 +434,11 @@ static void __init setup_lowcore(void)
lc->restart_source = -1UL;
/* Setup absolute zero lowcore */
- memcpy_absolute(&S390_lowcore.restart_stack, &lc->restart_stack,
- 4 * sizeof(unsigned long));
- memcpy_absolute(&S390_lowcore.restart_psw, &lc->restart_psw,
- sizeof(lc->restart_psw));
+ mem_assign_absolute(S390_lowcore.restart_stack, lc->restart_stack);
+ mem_assign_absolute(S390_lowcore.restart_fn, lc->restart_fn);
+ mem_assign_absolute(S390_lowcore.restart_data, lc->restart_data);
+ mem_assign_absolute(S390_lowcore.restart_source, lc->restart_source);
+ mem_assign_absolute(S390_lowcore.restart_psw, lc->restart_psw);
set_prefix((u32)(unsigned long) lc);
lowcore_ptr[0] = lc;
@@ -598,9 +603,7 @@ static void __init setup_memory_end(void)
static void __init setup_vmcoreinfo(void)
{
#ifdef CONFIG_KEXEC
- unsigned long ptr = paddr_vmcoreinfo_note();
-
- memcpy_absolute(&S390_lowcore.vmcore_info, &ptr, sizeof(ptr));
+ mem_assign_absolute(S390_lowcore.vmcore_info, paddr_vmcoreinfo_note());
#endif
}