diff mbox series

[kvm-unit-tests,PULL,1/9] s390x: Support PSW restart boot

Message ID 20190918120426.20832-2-thuth@redhat.com (mailing list archive)
State New, archived
Headers show
Series [kvm-unit-tests,PULL,1/9] s390x: Support PSW restart boot | expand

Commit Message

Thomas Huth Sept. 18, 2019, 12:04 p.m. UTC 
From: Janosch Frank <frankja@linux.ibm.com>

Add a boot PSW to PSW restart new, so we can also boot via a PSW
restart.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190826163502.1298-2-frankja@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 s390x/flat.lds | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/s390x/flat.lds b/s390x/flat.lds
index 403d967..86dffac 100644
--- a/s390x/flat.lds
+++ b/s390x/flat.lds
@@ -1,14 +1,18 @@ 
 SECTIONS
 {
-	/*
-	 * Initial short psw for disk boot, with 31 bit addressing for
-	 * non z/Arch environment compatibility and the instruction
-	 * address 0x10000 (cstart64.S .init).
-	 */
 	.lowcore : {
+		/*
+		 * Initial short psw for disk boot, with 31 bit addressing for
+		 * non z/Arch environment compatibility and the instruction
+		 * address 0x10000 (cstart64.S .init).
+		 */
 		. = 0;
 		 LONG(0x00080000)
 		 LONG(0x80010000)
+		 /* Restart new PSW for booting via PSW restart. */
+		 . = 0x1a0;
+		 QUAD(0x0000000180000000)
+		 QUAD(0x0000000000010000)
 	}
 	. = 0x10000;
 	.text : {