5 files changed, 58 insertions, 17 deletions

diff --git a/pc-bios/s390-ccw.img b/pc-bios/s390-ccw.img
index 47240f0a74..ff60978d28 100644
--- a/pc-bios/s390-ccw.img
+++ b/pc-bios/s390-ccw.img
Binary files differdiff --git a/pc-bios/s390-ccw/Makefile b/pc-bios/s390-ccw/Makefile
index dc69dd484f..a0f24c94a8 100644
--- a/pc-bios/s390-ccw/Makefile
+++ b/pc-bios/s390-ccw/Makefile
@@ -47,7 +47,7 @@ EXTRA_CFLAGS += -fwrapv -fno-strict-aliasing -fno-asynchronous-unwind-tables
 EXTRA_CFLAGS += -msoft-float
 EXTRA_CFLAGS += -std=gnu99
 EXTRA_CFLAGS += $(LIBC_INC) $(LIBNET_INC)
-EXTRA_LDFLAGS += -Wl,-pie -nostdlib -z noexecstack -z text
+EXTRA_LDFLAGS += -static-pie -nostdlib -z noexecstack -z text
 
 cc-test = $(CC) -Werror $1 -c -o /dev/null -xc /dev/null >/dev/null 2>/dev/null
 cc-option = if $(call cc-test, $1); then \
diff --git a/pc-bios/s390-ccw/menu.c b/pc-bios/s390-ccw/menu.c
index 84062e94af..eeaff78f87 100644
--- a/pc-bios/s390-ccw/menu.c
+++ b/pc-bios/s390-ccw/menu.c
@@ -159,7 +159,7 @@ static void boot_menu_prompt(bool retry)
     }
 }
 
-static int get_boot_index(bool *valid_entries)
+int menu_get_boot_index(bool *valid_entries)
 {
     int boot_index;
     bool retry = false;
@@ -224,7 +224,7 @@ int menu_get_zipl_boot_index(const char *menu_data)
     }
 
     printf("\n");
-    return get_boot_index(valid_entries);
+    return menu_get_boot_index(valid_entries);
 }
 
 int menu_get_enum_boot_index(bool *valid_entries)
@@ -247,7 +247,7 @@ int menu_get_enum_boot_index(bool *valid_entries)
     }
 
     printf("\n");
-    return get_boot_index(valid_entries);
+    return menu_get_boot_index(valid_entries);
 }
 
 void menu_set_parms(uint8_t boot_menu_flag, uint32_t boot_menu_timeout)
diff --git a/pc-bios/s390-ccw/netmain.c b/pc-bios/s390-ccw/netmain.c
index 719a547ada..a9521dff41 100644
--- a/pc-bios/s390-ccw/netmain.c
+++ b/pc-bios/s390-ccw/netmain.c
@@ -332,22 +332,64 @@ static int load_kernel_with_initrd(filename_ip_t *fn_ip,
     return rc;
 }
 
-#define MAX_PXELINUX_ENTRIES 16
+static int net_boot_menu(int num_ent, int def_ent,
+                         struct pl_cfg_entry *entries)
+{
+    bool valid_entries[MAX_BOOT_ENTRIES] = { false };
+    int idx;
+
+    puts("\ns390-ccw pxelinux.cfg boot menu:\n");
+    printf(" [0] default (%d)\n", def_ent + 1);
+    valid_entries[0] = true;
+
+    for (idx = 1; idx <= num_ent; idx++) {
+        printf(" [%d] %s\n", idx, entries[idx - 1].label);
+        valid_entries[idx] = true;
+    }
+    putchar('\n');
+
+    idx = menu_get_boot_index(valid_entries);
+    putchar('\n');
+
+    return idx;
+}
+
+static int net_select_and_load_kernel(filename_ip_t *fn_ip,
+                                      int num_ent, int selected,
+                                      struct pl_cfg_entry *entries)
+{
+    unsigned int loadparm = get_loadparm_index();
+
+    if (num_ent <= 0) {
+        return -1;
+    }
+
+    if (menu_is_enabled_enum() && num_ent > 1) {
+        loadparm = net_boot_menu(num_ent, selected, entries);
+    }
+
+    IPL_assert(loadparm <= num_ent,
+               "loadparm is set to an entry that is not available in the "
+               "pxelinux.cfg file!");
+
+    if (loadparm > 0) {
+        selected = loadparm - 1;
+    }
+
+    return load_kernel_with_initrd(fn_ip, &entries[selected]);
+}
 
 static int net_try_pxelinux_cfg(filename_ip_t *fn_ip)
 {
-    struct pl_cfg_entry entries[MAX_PXELINUX_ENTRIES];
+    struct pl_cfg_entry entries[MAX_BOOT_ENTRIES];
     int num_ent, def_ent = 0;
 
     num_ent = pxelinux_load_parse_cfg(fn_ip, mac, get_uuid(),
                                       DEFAULT_TFTP_RETRIES,
                                       cfgbuf, sizeof(cfgbuf),
-                                      entries, MAX_PXELINUX_ENTRIES, &def_ent);
-    if (num_ent > 0) {
-        return load_kernel_with_initrd(fn_ip, &entries[def_ent]);
-    }
+                                      entries, MAX_BOOT_ENTRIES, &def_ent);
 
-    return -1;
+    return net_select_and_load_kernel(fn_ip, num_ent, def_ent, entries);
 }
 
 /**
@@ -428,15 +470,13 @@ static int net_try_direct_tftp_load(filename_ip_t *fn_ip)
          * a magic comment string.
          */
         if (!strncasecmp("# pxelinux", cfgbuf, 10)) {
-            struct pl_cfg_entry entries[MAX_PXELINUX_ENTRIES];
+            struct pl_cfg_entry entries[MAX_BOOT_ENTRIES];
             int num_ent, def_ent = 0;
 
             num_ent = pxelinux_parse_cfg(cfgbuf, sizeof(cfgbuf), entries,
-                                         MAX_PXELINUX_ENTRIES, &def_ent);
-            if (num_ent <= 0) {
-                return -1;
-            }
-            return load_kernel_with_initrd(fn_ip, &entries[def_ent]);
+                                         MAX_BOOT_ENTRIES, &def_ent);
+            return net_select_and_load_kernel(fn_ip, num_ent, def_ent,
+                                              entries);
         }
     }
 
diff --git a/pc-bios/s390-ccw/s390-ccw.h b/pc-bios/s390-ccw/s390-ccw.h
index 6cdce3e5e5..b1dc35cded 100644
--- a/pc-bios/s390-ccw/s390-ccw.h
+++ b/pc-bios/s390-ccw/s390-ccw.h
@@ -87,6 +87,7 @@ int menu_get_zipl_boot_index(const char *menu_data);
 bool menu_is_enabled_zipl(void);
 int menu_get_enum_boot_index(bool *valid_entries);
 bool menu_is_enabled_enum(void);
+int menu_get_boot_index(bool *valid_entries);
 
 #define MAX_BOOT_ENTRIES  31