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s390x/kvm: add etoken facility

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Provide the etoken facility. We need to handle cpu model, migration and
clear reset.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Message-Id: <20180731090448.36662-3-borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
Christian Borntraeger 2018-07-31 11:04:48 +02:00 • committed by Cornelia Huck
parent d36f7de829
commit 27e84d4ebd
6 changed files with 39 additions and 4 deletions
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3
target/s390x/cpu.h
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@ -2,6 +2,7 @@
* S/390 virtual CPU header
*
* Copyright (c) 2009 Ulrich Hecht
* Copyright IBM Corp. 2012, 2018
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -68,6 +69,8 @@ struct CPUS390XState {
uint32_t aregs[16]; /* access registers */
uint8_t riccb[64]; /* runtime instrumentation control */
uint64_t gscb[4]; /* guarded storage control */
uint64_t etoken; /* etoken */
uint64_t etoken_extension; /* etoken extension */
/* Fields up to this point are not cleared by initial CPU reset */
struct {} start_initial_reset_fields;