1 /*
2  * virtio ccw machine definitions
3  *
4  * Copyright 2012, 2016 IBM Corp.
5  * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
6  *
7  * This work is licensed under the terms of the GNU GPL, version 2 or (at
8  * your option) any later version. See the COPYING file in the top-level
9  * directory.
10  */
11 #ifndef HW_S390X_S390_VIRTIO_CCW_H
12 #define HW_S390X_S390_VIRTIO_CCW_H
13 
14 #include "hw/boards.h"
15 #include "qom/object.h"
16 
17 #define TYPE_S390_CCW_MACHINE               "s390-ccw-machine"
18 
19 OBJECT_DECLARE_TYPE(S390CcwMachineState, S390CcwMachineClass, S390_CCW_MACHINE)
20 
21 
22 struct S390CcwMachineState {
23     /*< private >*/
24     MachineState parent_obj;
25 
26     /*< public >*/
27     bool aes_key_wrap;
28     bool dea_key_wrap;
29     bool pv;
30     uint8_t loadparm[8];
31 };
32 
33 #define S390_PTF_REASON_NONE (0x00 << 8)
34 #define S390_PTF_REASON_DONE (0x01 << 8)
35 #define S390_PTF_REASON_BUSY (0x02 << 8)
36 #define S390_TOPO_FC_MASK 0xffUL
37 void s390_handle_ptf(S390CPU *cpu, uint8_t r1, uintptr_t ra);
38 
39 struct S390CcwMachineClass {
40     /*< private >*/
41     MachineClass parent_class;
42 
43     /*< public >*/
44     bool ri_allowed;
45     bool cpu_model_allowed;
46     bool css_migration_enabled;
47     bool hpage_1m_allowed;
48     int max_threads;
49 };
50 
51 /* runtime-instrumentation allowed by the machine */
52 bool ri_allowed(void);
53 /* cpu model allowed by the machine */
54 bool cpu_model_allowed(void);
55 /* 1M huge page mappings allowed by the machine */
56 bool hpage_1m_allowed(void);
57 
58 /**
59  * Returns true if (vmstate based) migration of the channel subsystem
60  * is enabled, false if it is disabled.
61  */
62 bool css_migration_enabled(void);
63 
64 #endif
65