s390-ccw: interactive boot menu for scsi

Interactive boot menu for scsi. This follows a similar procedure
as the interactive menu for eckd dasd. An example follows:

    s390x Enumerated Boot Menu.

    3 entries detected. Select from index 0 to 2.

Signed-off-by: Collin L. Walling <walling@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
[thuth: Added additional "break;" statement to avoid analyzer warnings]
Signed-off-by: Thomas Huth <thuth@redhat.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/pc-bios/s390-ccw/menu.c b/pc-bios/s390-ccw/menu.c
index ee56939c21..96eec81e84 100644
--- a/pc-bios/s390-ccw/menu.c
+++ b/pc-bios/s390-ccw/menu.c
@@ -217,6 +217,21 @@ int menu_get_zipl_boot_index(const char *menu_data)
     return get_boot_index(entries - 1); /* subtract 1 to exclude banner */
 }
 
+
+int menu_get_enum_boot_index(int entries)
+{
+    char tmp[4];
+
+    sclp_print("s390x Enumerated Boot Menu.\n\n");
+
+    sclp_print(uitoa(entries, tmp, sizeof(tmp)));
+    sclp_print(" entries detected. Select from boot index 0 to ");
+    sclp_print(uitoa(entries - 1, tmp, sizeof(tmp)));
+    sclp_print(".\n\n");
+
+    return get_boot_index(entries);
+}
+
 void menu_set_parms(uint8_t boot_menu_flag, uint32_t boot_menu_timeout)
 {
     flag = boot_menu_flag;
@@ -227,3 +242,8 @@ bool menu_is_enabled_zipl(void)
 {
     return flag & (QIPL_FLAG_BM_OPTS_CMD | QIPL_FLAG_BM_OPTS_ZIPL);
 }
+
+bool menu_is_enabled_enum(void)
+{
+    return flag & QIPL_FLAG_BM_OPTS_CMD;
+}