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s390x/tod: factor out TOD into separate device

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Let's treat this like a separate device. TCG will have to store the
actual state/time later on.

Include cpu-qom.h in kvm_s390x.h (due to S390CPU) to compile tod-kvm.c.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180627134410.4901-4-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2018-06-27 15:44:04 +02:00 • committed by Cornelia Huck
parent 4ab6a1feac
commit 8046f374a6
9 changed files with 286 additions and 88 deletions
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46
include/hw/s390x/tod.h Normal file
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@ -0,0 +1,46 @@
/*
* TOD (Time Of Day) clock
*
* Copyright 2018 Red Hat, Inc.
* Author(s): David Hildenbrand <david@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef HW_S390_TOD_H
#define HW_S390_TOD_H
#include "hw/qdev.h"
typedef struct S390TOD {
uint8_t high;
uint64_t low;
} S390TOD;
#define TYPE_S390_TOD "s390-tod"
#define S390_TOD(obj) OBJECT_CHECK(S390TODState, (obj), TYPE_S390_TOD)
#define S390_TOD_CLASS(oc) OBJECT_CLASS_CHECK(S390TODClass, (oc), \
TYPE_S390_TOD)
#define S390_TOD_GET_CLASS(obj) OBJECT_GET_CLASS(S390TODClass, (obj), \
TYPE_S390_TOD)
#define TYPE_KVM_S390_TOD TYPE_S390_TOD "-kvm"
#define TYPE_QEMU_S390_TOD TYPE_S390_TOD "-qemu"
typedef struct S390TODState {
/* private */
DeviceState parent_obj;
} S390TODState;
typedef struct S390TODClass {
/* private */
DeviceClass parent_class;
/* public */
void (*get)(const S390TODState *td, S390TOD *tod, Error **errp);
void (*set)(S390TODState *td, const S390TOD *tod, Error **errp);
} S390TODClass;
void s390_init_tod(void);
#endif