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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2017-01-09 11:40:12 -0600 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2017-01-10 14:17:43 +1100 |
| commit | c70fc78ebe0b1599635ce9c51be2dfd26a3af905 (patch) | |
| tree | 2b6429dfe93a87fac5c22f96e4173fdfbd8a0c22 /core | |
| parent | 4fc81592c7d913af2a8dc15cd29ab616682e4126 (diff) | |
| download | talos-skiboot-c70fc78ebe0b1599635ce9c51be2dfd26a3af905.tar.gz talos-skiboot-c70fc78ebe0b1599635ce9c51be2dfd26a3af905.zip | |
init: Print some more info before booting linux
The kernel command line from nvram and the stdout-path are
useful to know when debugging console related problems.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'core')
| -rw-r--r-- | core/init.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/core/init.c b/core/init.c index 81939dd0..a5701576 100644 --- a/core/init.c +++ b/core/init.c @@ -458,7 +458,7 @@ void *fdt; void __noreturn load_and_boot_kernel(bool is_reboot) { const struct dt_property *memprop; - const char *cmdline; + const char *cmdline, *stdoutp; uint64_t mem_top; memprop = dt_find_property(dt_root, DT_PRIVATE "maxmem"); @@ -507,6 +507,8 @@ void __noreturn load_and_boot_kernel(bool is_reboot) if (cmdline) { dt_check_del_prop(dt_chosen, "bootargs"); dt_add_property_string(dt_chosen, "bootargs", cmdline); + prlog(PR_DEBUG, "INIT: Command line from NVRAM: %s\n", + cmdline); } op_display(OP_LOG, OP_MOD_INIT, 0x000B); @@ -534,6 +536,11 @@ void __noreturn load_and_boot_kernel(bool is_reboot) /* Take processours out of nap */ cpu_set_pm_enable(false); + /* Dump the selected console */ + stdoutp = dt_prop_get_def(dt_chosen, "linux,stdout-path", NULL); + printf("INIT: stdout-path: %s\n", stdoutp ? stdoutp : ""); + + printf("INIT: Starting kernel at 0x%llx, fdt at %p (size 0x%x)\n", kernel_entry, fdt, fdt_totalsize(fdt)); |
