[PATCH] kdump-lib.sh: detect secure boot on s390

[Pingfan Liu]

On s390, if Secure-IPL is enabled, then "kexec -s -l" is required.
Otherwise kdump kernel can not be loaded.

Signed-off-by: Pingfan Liu <piliu(a)redhat.com&gt;
---
 kdump-lib.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/kdump-lib.sh b/kdump-lib.sh
index e18c473..e24f74f 100755
--- a/kdump-lib.sh
+++ b/kdump-lib.sh
@@ -612,6 +612,7 @@ is_secure_boot_enforced()
 		return 0
     fi
 
+    # Detect secure boot on x86 and arm64
     secure_boot_file=$(find /sys/firmware/efi/efivars -name SecureBoot-* 2>/dev/null)
     setup_mode_file=$(find /sys/firmware/efi/efivars -name SetupMode-* 2>/dev/null)
 
@@ -624,6 +625,12 @@ is_secure_boot_enforced()
         fi
     fi
 
+    # Detect secure boot on s390x
+    if [[ -e "/sys/firmware/ipl/has_secure" && "$(cat
/sys/firmware/ipl/has_secure)" == "1" \
+	&&  -e "/sys/firmware/ipl/secure" && "$(cat
/sys/firmware/ipl/secure)" == "1" ]]; then
+        return 0
+    fi
+
     return 1
 }
 
-- 
2.7.5