xref: /linux/arch/s390/include/uapi/asm/kvm.h (revision 905e46acd3272d04566fec49afbd7ad9e2ed9ae3)
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 /*
32  * We can have up to 4*64k pending subchannels + 8 adapter interrupts,
33  * as well as up  to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.
34  * There are also sclp and machine checks. This gives us
35  * sizeof(kvm_s390_irq)*(4*65536+8+64*64+1+1) = 72 * 266250 = 19170000
36  * Lets round up to 8192 pages.
37  */
38 #define KVM_S390_MAX_FLOAT_IRQS	266250
39 #define KVM_S390_FLIC_MAX_BUFFER	0x2000000
40 
41 struct kvm_s390_io_adapter {
42 	__u32 id;
43 	__u8 isc;
44 	__u8 maskable;
45 	__u8 swap;
46 	__u8 flags;
47 };
48 
49 #define KVM_S390_ADAPTER_SUPPRESSIBLE 0x01
50 
51 struct kvm_s390_ais_req {
52 	__u8 isc;
53 	__u16 mode;
54 };
55 
56 #define KVM_S390_IO_ADAPTER_MASK 1
57 #define KVM_S390_IO_ADAPTER_MAP 2
58 #define KVM_S390_IO_ADAPTER_UNMAP 3
59 
60 struct kvm_s390_io_adapter_req {
61 	__u32 id;
62 	__u8 type;
63 	__u8 mask;
64 	__u16 pad0;
65 	__u64 addr;
66 };
67 
68 /* kvm attr_group  on vm fd */
69 #define KVM_S390_VM_MEM_CTRL		0
70 #define KVM_S390_VM_TOD			1
71 #define KVM_S390_VM_CRYPTO		2
72 #define KVM_S390_VM_CPU_MODEL		3
73 
74 /* kvm attributes for mem_ctrl */
75 #define KVM_S390_VM_MEM_ENABLE_CMMA	0
76 #define KVM_S390_VM_MEM_CLR_CMMA	1
77 #define KVM_S390_VM_MEM_LIMIT_SIZE	2
78 
79 #define KVM_S390_NO_MEM_LIMIT		U64_MAX
80 
81 /* kvm attributes for KVM_S390_VM_TOD */
82 #define KVM_S390_VM_TOD_LOW		0
83 #define KVM_S390_VM_TOD_HIGH		1
84 
85 /* kvm attributes for KVM_S390_VM_CPU_MODEL */
86 /* processor related attributes are r/w */
87 #define KVM_S390_VM_CPU_PROCESSOR	0
88 struct kvm_s390_vm_cpu_processor {
89 	__u64 cpuid;
90 	__u16 ibc;
91 	__u8  pad[6];
92 	__u64 fac_list[256];
93 };
94 
95 /* machine related attributes are r/o */
96 #define KVM_S390_VM_CPU_MACHINE		1
97 struct kvm_s390_vm_cpu_machine {
98 	__u64 cpuid;
99 	__u32 ibc;
100 	__u8  pad[4];
101 	__u64 fac_mask[256];
102 	__u64 fac_list[256];
103 };
104 
105 #define KVM_S390_VM_CPU_PROCESSOR_FEAT	2
106 #define KVM_S390_VM_CPU_MACHINE_FEAT	3
107 
108 #define KVM_S390_VM_CPU_FEAT_NR_BITS	1024
109 #define KVM_S390_VM_CPU_FEAT_ESOP	0
110 #define KVM_S390_VM_CPU_FEAT_SIEF2	1
111 #define KVM_S390_VM_CPU_FEAT_64BSCAO	2
112 #define KVM_S390_VM_CPU_FEAT_SIIF	3
113 #define KVM_S390_VM_CPU_FEAT_GPERE	4
114 #define KVM_S390_VM_CPU_FEAT_GSLS	5
115 #define KVM_S390_VM_CPU_FEAT_IB		6
116 #define KVM_S390_VM_CPU_FEAT_CEI	7
117 #define KVM_S390_VM_CPU_FEAT_IBS	8
118 #define KVM_S390_VM_CPU_FEAT_SKEY	9
119 #define KVM_S390_VM_CPU_FEAT_CMMA	10
120 #define KVM_S390_VM_CPU_FEAT_PFMFI	11
121 #define KVM_S390_VM_CPU_FEAT_SIGPIF	12
122 #define KVM_S390_VM_CPU_FEAT_KSS	13
123 struct kvm_s390_vm_cpu_feat {
124 	__u64 feat[16];
125 };
126 
127 #define KVM_S390_VM_CPU_PROCESSOR_SUBFUNC	4
128 #define KVM_S390_VM_CPU_MACHINE_SUBFUNC		5
129 /* for "test bit" instructions MSB 0 bit ordering, for "query" raw blocks */
130 struct kvm_s390_vm_cpu_subfunc {
131 	__u8 plo[32];		/* always */
132 	__u8 ptff[16];		/* with TOD-clock steering */
133 	__u8 kmac[16];		/* with MSA */
134 	__u8 kmc[16];		/* with MSA */
135 	__u8 km[16];		/* with MSA */
136 	__u8 kimd[16];		/* with MSA */
137 	__u8 klmd[16];		/* with MSA */
138 	__u8 pckmo[16];		/* with MSA3 */
139 	__u8 kmctr[16];		/* with MSA4 */
140 	__u8 kmf[16];		/* with MSA4 */
141 	__u8 kmo[16];		/* with MSA4 */
142 	__u8 pcc[16];		/* with MSA4 */
143 	__u8 ppno[16];		/* with MSA5 */
144 	__u8 kma[16];		/* with MSA8 */
145 	__u8 reserved[1808];
146 };
147 
148 /* kvm attributes for crypto */
149 #define KVM_S390_VM_CRYPTO_ENABLE_AES_KW	0
150 #define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW	1
151 #define KVM_S390_VM_CRYPTO_DISABLE_AES_KW	2
152 #define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW	3
153 
154 /* for KVM_GET_REGS and KVM_SET_REGS */
155 struct kvm_regs {
156 	/* general purpose regs for s390 */
157 	__u64 gprs[16];
158 };
159 
160 /* for KVM_GET_SREGS and KVM_SET_SREGS */
161 struct kvm_sregs {
162 	__u32 acrs[16];
163 	__u64 crs[16];
164 };
165 
166 /* for KVM_GET_FPU and KVM_SET_FPU */
167 struct kvm_fpu {
168 	__u32 fpc;
169 	__u64 fprs[16];
170 };
171 
172 #define KVM_GUESTDBG_USE_HW_BP		0x00010000
173 
174 #define KVM_HW_BP			1
175 #define KVM_HW_WP_WRITE			2
176 #define KVM_SINGLESTEP			4
177 
178 struct kvm_debug_exit_arch {
179 	__u64 addr;
180 	__u8 type;
181 	__u8 pad[7]; /* Should be set to 0 */
182 };
183 
184 struct kvm_hw_breakpoint {
185 	__u64 addr;
186 	__u64 phys_addr;
187 	__u64 len;
188 	__u8 type;
189 	__u8 pad[7]; /* Should be set to 0 */
190 };
191 
192 /* for KVM_SET_GUEST_DEBUG */
193 struct kvm_guest_debug_arch {
194 	__u32 nr_hw_bp;
195 	__u32 pad; /* Should be set to 0 */
196 	struct kvm_hw_breakpoint __user *hw_bp;
197 };
198 
199 /* for KVM_SYNC_PFAULT and KVM_REG_S390_PFTOKEN */
200 #define KVM_S390_PFAULT_TOKEN_INVALID	0xffffffffffffffffULL
201 
202 #define KVM_SYNC_PREFIX (1UL << 0)
203 #define KVM_SYNC_GPRS   (1UL << 1)
204 #define KVM_SYNC_ACRS   (1UL << 2)
205 #define KVM_SYNC_CRS    (1UL << 3)
206 #define KVM_SYNC_ARCH0  (1UL << 4)
207 #define KVM_SYNC_PFAULT (1UL << 5)
208 #define KVM_SYNC_VRS    (1UL << 6)
209 #define KVM_SYNC_RICCB  (1UL << 7)
210 #define KVM_SYNC_FPRS   (1UL << 8)
211 #define KVM_SYNC_GSCB   (1UL << 9)
212 /* length and alignment of the sdnx as a power of two */
213 #define SDNXC 8
214 #define SDNXL (1UL << SDNXC)
215 /* definition of registers in kvm_run */
216 struct kvm_sync_regs {
217 	__u64 prefix;	/* prefix register */
218 	__u64 gprs[16];	/* general purpose registers */
219 	__u32 acrs[16];	/* access registers */
220 	__u64 crs[16];	/* control registers */
221 	__u64 todpr;	/* tod programmable register [ARCH0] */
222 	__u64 cputm;	/* cpu timer [ARCH0] */
223 	__u64 ckc;	/* clock comparator [ARCH0] */
224 	__u64 pp;	/* program parameter [ARCH0] */
225 	__u64 gbea;	/* guest breaking-event address [ARCH0] */
226 	__u64 pft;	/* pfault token [PFAULT] */
227 	__u64 pfs;	/* pfault select [PFAULT] */
228 	__u64 pfc;	/* pfault compare [PFAULT] */
229 	union {
230 		__u64 vrs[32][2];	/* vector registers (KVM_SYNC_VRS) */
231 		__u64 fprs[16];		/* fp registers (KVM_SYNC_FPRS) */
232 	};
233 	__u8  reserved[512];	/* for future vector expansion */
234 	__u32 fpc;		/* valid on KVM_SYNC_VRS or KVM_SYNC_FPRS */
235 	__u8 padding1[52];	/* riccb needs to be 64byte aligned */
236 	__u8 riccb[64];		/* runtime instrumentation controls block */
237 	__u8 padding2[192];	/* sdnx needs to be 256byte aligned */
238 	union {
239 		__u8 sdnx[SDNXL];  /* state description annex */
240 		struct {
241 			__u64 reserved1[2];
242 			__u64 gscb[4];
243 		};
244 	};
245 };
246 
247 #define KVM_REG_S390_TODPR	(KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)
248 #define KVM_REG_S390_EPOCHDIFF	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2)
249 #define KVM_REG_S390_CPU_TIMER  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3)
250 #define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4)
251 #define KVM_REG_S390_PFTOKEN	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5)
252 #define KVM_REG_S390_PFCOMPARE	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6)
253 #define KVM_REG_S390_PFSELECT	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7)
254 #define KVM_REG_S390_PP		(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8)
255 #define KVM_REG_S390_GBEA	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9)
256 #endif
257