xref: /openbmc/qemu/linux-headers/asm-s390/kvm.h (revision c39f95dc)
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 #define KVM_DEV_FLIC_CLEAR_IO_IRQ	8
29 #define KVM_DEV_FLIC_AISM		9
30 #define KVM_DEV_FLIC_AIRQ_INJECT	10
31 #define KVM_DEV_FLIC_AISM_ALL		11
32 /*
33  * We can have up to 4*64k pending subchannels + 8 adapter interrupts,
34  * as well as up  to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.
35  * There are also sclp and machine checks. This gives us
36  * sizeof(kvm_s390_irq)*(4*65536+8+64*64+1+1) = 72 * 266250 = 19170000
37  * Lets round up to 8192 pages.
38  */
39 #define KVM_S390_MAX_FLOAT_IRQS	266250
40 #define KVM_S390_FLIC_MAX_BUFFER	0x2000000
41 
42 struct kvm_s390_io_adapter {
43 	__u32 id;
44 	__u8 isc;
45 	__u8 maskable;
46 	__u8 swap;
47 	__u8 flags;
48 };
49 
50 #define KVM_S390_ADAPTER_SUPPRESSIBLE 0x01
51 
52 struct kvm_s390_ais_req {
53 	__u8 isc;
54 	__u16 mode;
55 };
56 
57 struct kvm_s390_ais_all {
58 	__u8 simm;
59 	__u8 nimm;
60 };
61 
62 #define KVM_S390_IO_ADAPTER_MASK 1
63 #define KVM_S390_IO_ADAPTER_MAP 2
64 #define KVM_S390_IO_ADAPTER_UNMAP 3
65 
66 struct kvm_s390_io_adapter_req {
67 	__u32 id;
68 	__u8 type;
69 	__u8 mask;
70 	__u16 pad0;
71 	__u64 addr;
72 };
73 
74 /* kvm attr_group  on vm fd */
75 #define KVM_S390_VM_MEM_CTRL		0
76 #define KVM_S390_VM_TOD			1
77 #define KVM_S390_VM_CRYPTO		2
78 #define KVM_S390_VM_CPU_MODEL		3
79 #define KVM_S390_VM_MIGRATION		4
80 
81 /* kvm attributes for mem_ctrl */
82 #define KVM_S390_VM_MEM_ENABLE_CMMA	0
83 #define KVM_S390_VM_MEM_CLR_CMMA	1
84 #define KVM_S390_VM_MEM_LIMIT_SIZE	2
85 
86 #define KVM_S390_NO_MEM_LIMIT		U64_MAX
87 
88 /* kvm attributes for KVM_S390_VM_TOD */
89 #define KVM_S390_VM_TOD_LOW		0
90 #define KVM_S390_VM_TOD_HIGH		1
91 #define KVM_S390_VM_TOD_EXT		2
92 
93 struct kvm_s390_vm_tod_clock {
94 	__u8  epoch_idx;
95 	__u64 tod;
96 };
97 
98 /* kvm attributes for KVM_S390_VM_CPU_MODEL */
99 /* processor related attributes are r/w */
100 #define KVM_S390_VM_CPU_PROCESSOR	0
101 struct kvm_s390_vm_cpu_processor {
102 	__u64 cpuid;
103 	__u16 ibc;
104 	__u8  pad[6];
105 	__u64 fac_list[256];
106 };
107 
108 /* machine related attributes are r/o */
109 #define KVM_S390_VM_CPU_MACHINE		1
110 struct kvm_s390_vm_cpu_machine {
111 	__u64 cpuid;
112 	__u32 ibc;
113 	__u8  pad[4];
114 	__u64 fac_mask[256];
115 	__u64 fac_list[256];
116 };
117 
118 #define KVM_S390_VM_CPU_PROCESSOR_FEAT	2
119 #define KVM_S390_VM_CPU_MACHINE_FEAT	3
120 
121 #define KVM_S390_VM_CPU_FEAT_NR_BITS	1024
122 #define KVM_S390_VM_CPU_FEAT_ESOP	0
123 #define KVM_S390_VM_CPU_FEAT_SIEF2	1
124 #define KVM_S390_VM_CPU_FEAT_64BSCAO	2
125 #define KVM_S390_VM_CPU_FEAT_SIIF	3
126 #define KVM_S390_VM_CPU_FEAT_GPERE	4
127 #define KVM_S390_VM_CPU_FEAT_GSLS	5
128 #define KVM_S390_VM_CPU_FEAT_IB		6
129 #define KVM_S390_VM_CPU_FEAT_CEI	7
130 #define KVM_S390_VM_CPU_FEAT_IBS	8
131 #define KVM_S390_VM_CPU_FEAT_SKEY	9
132 #define KVM_S390_VM_CPU_FEAT_CMMA	10
133 #define KVM_S390_VM_CPU_FEAT_PFMFI	11
134 #define KVM_S390_VM_CPU_FEAT_SIGPIF	12
135 #define KVM_S390_VM_CPU_FEAT_KSS	13
136 struct kvm_s390_vm_cpu_feat {
137 	__u64 feat[16];
138 };
139 
140 #define KVM_S390_VM_CPU_PROCESSOR_SUBFUNC	4
141 #define KVM_S390_VM_CPU_MACHINE_SUBFUNC		5
142 /* for "test bit" instructions MSB 0 bit ordering, for "query" raw blocks */
143 struct kvm_s390_vm_cpu_subfunc {
144 	__u8 plo[32];		/* always */
145 	__u8 ptff[16];		/* with TOD-clock steering */
146 	__u8 kmac[16];		/* with MSA */
147 	__u8 kmc[16];		/* with MSA */
148 	__u8 km[16];		/* with MSA */
149 	__u8 kimd[16];		/* with MSA */
150 	__u8 klmd[16];		/* with MSA */
151 	__u8 pckmo[16];		/* with MSA3 */
152 	__u8 kmctr[16];		/* with MSA4 */
153 	__u8 kmf[16];		/* with MSA4 */
154 	__u8 kmo[16];		/* with MSA4 */
155 	__u8 pcc[16];		/* with MSA4 */
156 	__u8 ppno[16];		/* with MSA5 */
157 	__u8 kma[16];		/* with MSA8 */
158 	__u8 reserved[1808];
159 };
160 
161 /* kvm attributes for crypto */
162 #define KVM_S390_VM_CRYPTO_ENABLE_AES_KW	0
163 #define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW	1
164 #define KVM_S390_VM_CRYPTO_DISABLE_AES_KW	2
165 #define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW	3
166 
167 /* kvm attributes for migration mode */
168 #define KVM_S390_VM_MIGRATION_STOP	0
169 #define KVM_S390_VM_MIGRATION_START	1
170 #define KVM_S390_VM_MIGRATION_STATUS	2
171 
172 /* for KVM_GET_REGS and KVM_SET_REGS */
173 struct kvm_regs {
174 	/* general purpose regs for s390 */
175 	__u64 gprs[16];
176 };
177 
178 /* for KVM_GET_SREGS and KVM_SET_SREGS */
179 struct kvm_sregs {
180 	__u32 acrs[16];
181 	__u64 crs[16];
182 };
183 
184 /* for KVM_GET_FPU and KVM_SET_FPU */
185 struct kvm_fpu {
186 	__u32 fpc;
187 	__u64 fprs[16];
188 };
189 
190 #define KVM_GUESTDBG_USE_HW_BP		0x00010000
191 
192 #define KVM_HW_BP			1
193 #define KVM_HW_WP_WRITE			2
194 #define KVM_SINGLESTEP			4
195 
196 struct kvm_debug_exit_arch {
197 	__u64 addr;
198 	__u8 type;
199 	__u8 pad[7]; /* Should be set to 0 */
200 };
201 
202 struct kvm_hw_breakpoint {
203 	__u64 addr;
204 	__u64 phys_addr;
205 	__u64 len;
206 	__u8 type;
207 	__u8 pad[7]; /* Should be set to 0 */
208 };
209 
210 /* for KVM_SET_GUEST_DEBUG */
211 struct kvm_guest_debug_arch {
212 	__u32 nr_hw_bp;
213 	__u32 pad; /* Should be set to 0 */
214 	struct kvm_hw_breakpoint *hw_bp;
215 };
216 
217 /* for KVM_SYNC_PFAULT and KVM_REG_S390_PFTOKEN */
218 #define KVM_S390_PFAULT_TOKEN_INVALID	0xffffffffffffffffULL
219 
220 #define KVM_SYNC_PREFIX (1UL << 0)
221 #define KVM_SYNC_GPRS   (1UL << 1)
222 #define KVM_SYNC_ACRS   (1UL << 2)
223 #define KVM_SYNC_CRS    (1UL << 3)
224 #define KVM_SYNC_ARCH0  (1UL << 4)
225 #define KVM_SYNC_PFAULT (1UL << 5)
226 #define KVM_SYNC_VRS    (1UL << 6)
227 #define KVM_SYNC_RICCB  (1UL << 7)
228 #define KVM_SYNC_FPRS   (1UL << 8)
229 #define KVM_SYNC_GSCB   (1UL << 9)
230 /* length and alignment of the sdnx as a power of two */
231 #define SDNXC 8
232 #define SDNXL (1UL << SDNXC)
233 /* definition of registers in kvm_run */
234 struct kvm_sync_regs {
235 	__u64 prefix;	/* prefix register */
236 	__u64 gprs[16];	/* general purpose registers */
237 	__u32 acrs[16];	/* access registers */
238 	__u64 crs[16];	/* control registers */
239 	__u64 todpr;	/* tod programmable register [ARCH0] */
240 	__u64 cputm;	/* cpu timer [ARCH0] */
241 	__u64 ckc;	/* clock comparator [ARCH0] */
242 	__u64 pp;	/* program parameter [ARCH0] */
243 	__u64 gbea;	/* guest breaking-event address [ARCH0] */
244 	__u64 pft;	/* pfault token [PFAULT] */
245 	__u64 pfs;	/* pfault select [PFAULT] */
246 	__u64 pfc;	/* pfault compare [PFAULT] */
247 	union {
248 		__u64 vrs[32][2];	/* vector registers (KVM_SYNC_VRS) */
249 		__u64 fprs[16];		/* fp registers (KVM_SYNC_FPRS) */
250 	};
251 	__u8  reserved[512];	/* for future vector expansion */
252 	__u32 fpc;		/* valid on KVM_SYNC_VRS or KVM_SYNC_FPRS */
253 	__u8 padding1[52];	/* riccb needs to be 64byte aligned */
254 	__u8 riccb[64];		/* runtime instrumentation controls block */
255 	__u8 padding2[192];	/* sdnx needs to be 256byte aligned */
256 	union {
257 		__u8 sdnx[SDNXL];  /* state description annex */
258 		struct {
259 			__u64 reserved1[2];
260 			__u64 gscb[4];
261 		};
262 	};
263 };
264 
265 #define KVM_REG_S390_TODPR	(KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)
266 #define KVM_REG_S390_EPOCHDIFF	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2)
267 #define KVM_REG_S390_CPU_TIMER  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3)
268 #define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4)
269 #define KVM_REG_S390_PFTOKEN	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5)
270 #define KVM_REG_S390_PFCOMPARE	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6)
271 #define KVM_REG_S390_PFSELECT	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7)
272 #define KVM_REG_S390_PP		(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8)
273 #define KVM_REG_S390_GBEA	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9)
274 #endif
275