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1 #ifndef __LINUX_KVM_S390_H
2 #define __LINUX_KVM_S390_H
3 /*
4  * KVM s390 specific structures and definitions
5  *
6  * Copyright IBM Corp. 2008
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License (version 2 only)
10  * as published by the Free Software Foundation.
11  *
12  *    Author(s): Carsten Otte <cotte@de.ibm.com>
13  *               Christian Borntraeger <borntraeger@de.ibm.com>
14  */
15 #include <linux/types.h>
16 
17 #define __KVM_S390
18 #define __KVM_HAVE_GUEST_DEBUG
19 
20 /* Device control API: s390-specific devices */
21 #define KVM_DEV_FLIC_GET_ALL_IRQS	1
22 #define KVM_DEV_FLIC_ENQUEUE		2
23 #define KVM_DEV_FLIC_CLEAR_IRQS		3
24 #define KVM_DEV_FLIC_APF_ENABLE		4
25 #define KVM_DEV_FLIC_APF_DISABLE_WAIT	5
26 #define KVM_DEV_FLIC_ADAPTER_REGISTER	6
27 #define KVM_DEV_FLIC_ADAPTER_MODIFY	7
28 /*
29  * We can have up to 4*64k pending subchannels + 8 adapter interrupts,
30  * as well as up  to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.
31  * There are also sclp and machine checks. This gives us
32  * sizeof(kvm_s390_irq)*(4*65536+8+64*64+1+1) = 72 * 266250 = 19170000
33  * Lets round up to 8192 pages.
34  */
35 #define KVM_S390_MAX_FLOAT_IRQS	266250
36 #define KVM_S390_FLIC_MAX_BUFFER	0x2000000
37 
38 struct kvm_s390_io_adapter {
39 	__u32 id;
40 	__u8 isc;
41 	__u8 maskable;
42 	__u8 swap;
43 	__u8 pad;
44 };
45 
46 #define KVM_S390_IO_ADAPTER_MASK 1
47 #define KVM_S390_IO_ADAPTER_MAP 2
48 #define KVM_S390_IO_ADAPTER_UNMAP 3
49 
50 struct kvm_s390_io_adapter_req {
51 	__u32 id;
52 	__u8 type;
53 	__u8 mask;
54 	__u16 pad0;
55 	__u64 addr;
56 };
57 
58 /* kvm attr_group  on vm fd */
59 #define KVM_S390_VM_MEM_CTRL		0
60 #define KVM_S390_VM_TOD			1
61 #define KVM_S390_VM_CRYPTO		2
62 #define KVM_S390_VM_CPU_MODEL		3
63 
64 /* kvm attributes for mem_ctrl */
65 #define KVM_S390_VM_MEM_ENABLE_CMMA	0
66 #define KVM_S390_VM_MEM_CLR_CMMA	1
67 #define KVM_S390_VM_MEM_LIMIT_SIZE	2
68 
69 /* kvm attributes for KVM_S390_VM_TOD */
70 #define KVM_S390_VM_TOD_LOW		0
71 #define KVM_S390_VM_TOD_HIGH		1
72 
73 /* kvm attributes for KVM_S390_VM_CPU_MODEL */
74 /* processor related attributes are r/w */
75 #define KVM_S390_VM_CPU_PROCESSOR	0
76 struct kvm_s390_vm_cpu_processor {
77 	__u64 cpuid;
78 	__u16 ibc;
79 	__u8  pad[6];
80 	__u64 fac_list[256];
81 };
82 
83 /* machine related attributes are r/o */
84 #define KVM_S390_VM_CPU_MACHINE		1
85 struct kvm_s390_vm_cpu_machine {
86 	__u64 cpuid;
87 	__u32 ibc;
88 	__u8  pad[4];
89 	__u64 fac_mask[256];
90 	__u64 fac_list[256];
91 };
92 
93 /* kvm attributes for crypto */
94 #define KVM_S390_VM_CRYPTO_ENABLE_AES_KW	0
95 #define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW	1
96 #define KVM_S390_VM_CRYPTO_DISABLE_AES_KW	2
97 #define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW	3
98 
99 /* for KVM_GET_REGS and KVM_SET_REGS */
100 struct kvm_regs {
101 	/* general purpose regs for s390 */
102 	__u64 gprs[16];
103 };
104 
105 /* for KVM_GET_SREGS and KVM_SET_SREGS */
106 struct kvm_sregs {
107 	__u32 acrs[16];
108 	__u64 crs[16];
109 };
110 
111 /* for KVM_GET_FPU and KVM_SET_FPU */
112 struct kvm_fpu {
113 	__u32 fpc;
114 	__u64 fprs[16];
115 };
116 
117 #define KVM_GUESTDBG_USE_HW_BP		0x00010000
118 
119 #define KVM_HW_BP			1
120 #define KVM_HW_WP_WRITE			2
121 #define KVM_SINGLESTEP			4
122 
123 struct kvm_debug_exit_arch {
124 	__u64 addr;
125 	__u8 type;
126 	__u8 pad[7]; /* Should be set to 0 */
127 };
128 
129 struct kvm_hw_breakpoint {
130 	__u64 addr;
131 	__u64 phys_addr;
132 	__u64 len;
133 	__u8 type;
134 	__u8 pad[7]; /* Should be set to 0 */
135 };
136 
137 /* for KVM_SET_GUEST_DEBUG */
138 struct kvm_guest_debug_arch {
139 	__u32 nr_hw_bp;
140 	__u32 pad; /* Should be set to 0 */
141 	struct kvm_hw_breakpoint __user *hw_bp;
142 };
143 
144 /* for KVM_SYNC_PFAULT and KVM_REG_S390_PFTOKEN */
145 #define KVM_S390_PFAULT_TOKEN_INVALID	0xffffffffffffffffULL
146 
147 #define KVM_SYNC_PREFIX (1UL << 0)
148 #define KVM_SYNC_GPRS   (1UL << 1)
149 #define KVM_SYNC_ACRS   (1UL << 2)
150 #define KVM_SYNC_CRS    (1UL << 3)
151 #define KVM_SYNC_ARCH0  (1UL << 4)
152 #define KVM_SYNC_PFAULT (1UL << 5)
153 #define KVM_SYNC_VRS    (1UL << 6)
154 #define KVM_SYNC_BPBC   (1UL << 10)
155 /* definition of registers in kvm_run */
156 struct kvm_sync_regs {
157 	__u64 prefix;	/* prefix register */
158 	__u64 gprs[16];	/* general purpose registers */
159 	__u32 acrs[16];	/* access registers */
160 	__u64 crs[16];	/* control registers */
161 	__u64 todpr;	/* tod programmable register [ARCH0] */
162 	__u64 cputm;	/* cpu timer [ARCH0] */
163 	__u64 ckc;	/* clock comparator [ARCH0] */
164 	__u64 pp;	/* program parameter [ARCH0] */
165 	__u64 gbea;	/* guest breaking-event address [ARCH0] */
166 	__u64 pft;	/* pfault token [PFAULT] */
167 	__u64 pfs;	/* pfault select [PFAULT] */
168 	__u64 pfc;	/* pfault compare [PFAULT] */
169 	__u64 vrs[32][2];	/* vector registers */
170 	__u8  reserved[512];	/* for future vector expansion */
171 	__u32 fpc;	/* only valid with vector registers */
172 	__u8 bpbc : 1;		/* bp mode */
173 	__u8 reserved2 : 7;
174 };
175 
176 #define KVM_REG_S390_TODPR	(KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)
177 #define KVM_REG_S390_EPOCHDIFF	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2)
178 #define KVM_REG_S390_CPU_TIMER  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3)
179 #define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4)
180 #define KVM_REG_S390_PFTOKEN	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5)
181 #define KVM_REG_S390_PFCOMPARE	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6)
182 #define KVM_REG_S390_PFSELECT	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7)
183 #define KVM_REG_S390_PP		(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8)
184 #define KVM_REG_S390_GBEA	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9)
185 #endif
186