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From f6f56692227952864edcb0dc841cde6238470cf8 Mon Sep 17 00:00:00 2001
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From: Cornelia Huck <cohuck@redhat.com>
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Date: Mon, 21 Jan 2019 17:05:59 +0100
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Subject: [PATCH 14/14] s390x: Return specification exception for unimplemented
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diag 308 subcodes
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RH-Author: Cornelia Huck <cohuck@redhat.com>
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Message-id: <20190121170559.19471-1-cohuck@redhat.com>
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Patchwork-id: 84074
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O-Subject: [RHEL-7.6.z qemu-kvm-ma PATCH] s390x: Return specification exception for unimplemented diag 308 subcodes
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Bugzilla: 1668424
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RH-Acked-by: Thomas Huth <thuth@redhat.com>
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RH-Acked-by: David Hildenbrand <david@redhat.com>
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RH-Acked-by: John Snow <jsnow@redhat.com>
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From: Janosch Frank <frankja@linux.ibm.com>
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The architecture specifies specification exceptions for all
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unavailable subcodes.
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The presence of subcodes is indicated by checking some query subcode.
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For example 6 will indicate that 3-6 are available. So future systems
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might call new subcodes to check for new features. This should not
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trigger a hw error, instead we return the architectured specification
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exception.
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Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
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Cc: qemu-stable@nongnu.org
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Message-Id: <20190111113657.66195-3-frankja@linux.ibm.com>
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Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
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Reviewed-by: David Hildenbrand <david@redhat.com>
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Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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(cherry picked from commit 37dbd1f4d4805edcd18d94eb202bb3461b3cd52d)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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target/s390x/diag.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/target/s390x/diag.c b/target/s390x/diag.c
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index a755837..50b58df 100644
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--- a/target/s390x/diag.c
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+++ b/target/s390x/diag.c
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@@ -182,7 +182,7 @@ out:
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}
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return;
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default:
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- hw_error("Unhandled diag308 subcode %" PRIx64, subcode);
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+ s390_program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO, ra);
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break;
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}
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}
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--
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1.8.3.1
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