qemu-patch-raspberry4/hw/s390x/ipl.h
David Hildenbrand db3b2566e0 s390x: machine reset function with new ipl cpu handling
Current implementation depends on the order of resets getting triggered.

If a cpu reset is triggered after the ipl device reset, the CPU is stopped and
the VM will not run. In fact, that hinders us from converting the ipl device
into a TYPE_DEVICE. Let's change that by manually configuring the ipl cpu
during a system reset, so we have full control and can demangle that code.

Also remove the superflous cpu parameter from s390_update_iplstate on the way.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-10-21 12:21:30 +02:00

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C

/*
* s390 IPL device
*
* Copyright 2015 IBM Corp.
* Author(s): Zhang Fan <bjfanzh@cn.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or (at
* your option) any later version. See the COPYING file in the top-level
* directory.
*/
#ifndef HW_S390_IPL_H
#define HW_S390_IPL_H
#include "cpu.h"
typedef struct IplParameterBlock {
uint8_t reserved1[110];
uint16_t devno;
uint8_t reserved2[88];
} IplParameterBlock;
void s390_ipl_update_diag308(IplParameterBlock *iplb);
void s390_ipl_prepare_cpu(S390CPU *cpu);
IplParameterBlock *s390_ipl_get_iplb(void);
void s390_reipl_request(void);
#endif