s390x: Return specification exception for unimplemented diag 308 subcodes
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 37dbd1f4d4
)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
stable-3.1
parent
8ec7368c8f
commit
2e5502300e
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@ -130,7 +130,7 @@ 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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