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-rw-r--r--arch/s390/kernel/setup.c40
1 files changed, 30 insertions, 10 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index f31939147ccd..ba5f456edaa9 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -130,17 +130,14 @@ __setup("condev=", condev_setup);
static void __init set_preferred_console(void)
{
- 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)
+ if (CONSOLE_IS_3215 || CONSOLE_IS_SCLP)
add_preferred_console("ttyS", 0, NULL);
else if (CONSOLE_IS_3270)
add_preferred_console("tty3270", 0, NULL);
+ else if (CONSOLE_IS_VT220)
+ add_preferred_console("ttyS", 1, NULL);
+ else if (CONSOLE_IS_HVC)
+ add_preferred_console("hvc", 0, NULL);
}
static int __init conmode_setup(char *str)
@@ -206,6 +203,15 @@ static void __init conmode_default(void)
SET_CONSOLE_SCLP;
#endif
}
+ } else if (MACHINE_IS_KVM) {
+ if (sclp.has_vt220 &&
+ config_enabled(CONFIG_SCLP_VT220_CONSOLE))
+ SET_CONSOLE_VT220;
+ else if (sclp.has_linemode &&
+ config_enabled(CONFIG_SCLP_CONSOLE))
+ SET_CONSOLE_SCLP;
+ else
+ SET_CONSOLE_HVC;
} else {
#if defined(CONFIG_SCLP_CONSOLE) || defined(CONFIG_SCLP_VT220_CONSOLE)
SET_CONSOLE_SCLP;
@@ -289,7 +295,7 @@ static int __init parse_vmalloc(char *arg)
}
early_param("vmalloc", parse_vmalloc);
-void *restart_stack __attribute__((__section__(".data")));
+void *restart_stack __section(.data);
static void __init setup_lowcore(void)
{
@@ -432,6 +438,20 @@ static void __init setup_resources(void)
}
}
}
+#ifdef CONFIG_CRASH_DUMP
+ /*
+ * Re-add removed crash kernel memory as reserved memory. This makes
+ * sure it will be mapped with the identity mapping and struct pages
+ * will be created, so it can be resized later on.
+ * However add it later since the crash kernel resource should not be
+ * part of the System RAM resource.
+ */
+ if (crashk_res.end) {
+ memblock_add(crashk_res.start, resource_size(&crashk_res));
+ memblock_reserve(crashk_res.start, resource_size(&crashk_res));
+ insert_resource(&iomem_resource, &crashk_res);
+ }
+#endif
}
static void __init setup_memory_end(void)
@@ -602,7 +622,6 @@ static void __init reserve_crashkernel(void)
diag10_range(PFN_DOWN(crash_base), PFN_DOWN(crash_size));
crashk_res.start = crash_base;
crashk_res.end = crash_base + crash_size - 1;
- insert_resource(&iomem_resource, &crashk_res);
memblock_remove(crash_base, crash_size);
pr_info("Reserving %lluMB of memory at %lluMB "
"for crashkernel (System RAM: %luMB)\n",
@@ -901,6 +920,7 @@ void __init setup_arch(char **cmdline_p)
setup_vmcoreinfo();
setup_lowcore();
smp_fill_possible_mask();
+ cpu_detect_mhz_feature();
cpu_init();
numa_setup();