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[81/97] s390x: Return specification exception for unimplemented diag 308 subcodes

Message ID 20190401210011.16009-82-mdroth@linux.vnet.ibm.com
State New
Headers show
Series Patch Round-up for stable 3.0.1, freeze on 2019-04-08 | expand

Commit Message

Michael Roth April 1, 2019, 8:59 p.m. UTC 
From: Janosch Frank <frankja@linux.ibm.com>

The architecture specifies specification exceptions for all
unavailable subcodes.

The presence of subcodes is indicated by checking some query subcode.
For example 6 will indicate that 3-6 are available. So future systems
might call new subcodes to check for new features. This should not
trigger a hw error, instead we return the architectured specification
exception.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Cc: qemu-stable@nongnu.org
Message-Id: <20190111113657.66195-3-frankja@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
(cherry picked from commit 37dbd1f4d4805edcd18d94eb202bb3461b3cd52d)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
 target/s390x/diag.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/target/s390x/diag.c b/target/s390x/diag.c
index acb0f3d4af..aafa740f61 100644
--- a/target/s390x/diag.c
+++ b/target/s390x/diag.c
@@ -130,7 +130,7 @@  out:
         }
         return;
     default:
-        hw_error("Unhandled diag308 subcode %" PRIx64, subcode);
+        s390_program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO, ra);
         break;
     }
 }