xref: /openbmc/linux/arch/s390/include/uapi/asm/kvm.h (revision 0edbfea5)
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 /*
30  * We can have up to 4*64k pending subchannels + 8 adapter interrupts,
31  * as well as up  to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.
32  * There are also sclp and machine checks. This gives us
33  * sizeof(kvm_s390_irq)*(4*65536+8+64*64+1+1) = 72 * 266250 = 19170000
34  * Lets round up to 8192 pages.
35  */
36 #define KVM_S390_MAX_FLOAT_IRQS	266250
37 #define KVM_S390_FLIC_MAX_BUFFER	0x2000000
38 
39 struct kvm_s390_io_adapter {
40 	__u32 id;
41 	__u8 isc;
42 	__u8 maskable;
43 	__u8 swap;
44 	__u8 pad;
45 };
46 
47 #define KVM_S390_IO_ADAPTER_MASK 1
48 #define KVM_S390_IO_ADAPTER_MAP 2
49 #define KVM_S390_IO_ADAPTER_UNMAP 3
50 
51 struct kvm_s390_io_adapter_req {
52 	__u32 id;
53 	__u8 type;
54 	__u8 mask;
55 	__u16 pad0;
56 	__u64 addr;
57 };
58 
59 /* kvm attr_group  on vm fd */
60 #define KVM_S390_VM_MEM_CTRL		0
61 #define KVM_S390_VM_TOD			1
62 #define KVM_S390_VM_CRYPTO		2
63 #define KVM_S390_VM_CPU_MODEL		3
64 
65 /* kvm attributes for mem_ctrl */
66 #define KVM_S390_VM_MEM_ENABLE_CMMA	0
67 #define KVM_S390_VM_MEM_CLR_CMMA	1
68 #define KVM_S390_VM_MEM_LIMIT_SIZE	2
69 
70 #define KVM_S390_NO_MEM_LIMIT		U64_MAX
71 
72 /* kvm attributes for KVM_S390_VM_TOD */
73 #define KVM_S390_VM_TOD_LOW		0
74 #define KVM_S390_VM_TOD_HIGH		1
75 
76 /* kvm attributes for KVM_S390_VM_CPU_MODEL */
77 /* processor related attributes are r/w */
78 #define KVM_S390_VM_CPU_PROCESSOR	0
79 struct kvm_s390_vm_cpu_processor {
80 	__u64 cpuid;
81 	__u16 ibc;
82 	__u8  pad[6];
83 	__u64 fac_list[256];
84 };
85 
86 /* machine related attributes are r/o */
87 #define KVM_S390_VM_CPU_MACHINE		1
88 struct kvm_s390_vm_cpu_machine {
89 	__u64 cpuid;
90 	__u32 ibc;
91 	__u8  pad[4];
92 	__u64 fac_mask[256];
93 	__u64 fac_list[256];
94 };
95 
96 /* kvm attributes for crypto */
97 #define KVM_S390_VM_CRYPTO_ENABLE_AES_KW	0
98 #define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW	1
99 #define KVM_S390_VM_CRYPTO_DISABLE_AES_KW	2
100 #define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW	3
101 
102 /* for KVM_GET_REGS and KVM_SET_REGS */
103 struct kvm_regs {
104 	/* general purpose regs for s390 */
105 	__u64 gprs[16];
106 };
107 
108 /* for KVM_GET_SREGS and KVM_SET_SREGS */
109 struct kvm_sregs {
110 	__u32 acrs[16];
111 	__u64 crs[16];
112 };
113 
114 /* for KVM_GET_FPU and KVM_SET_FPU */
115 struct kvm_fpu {
116 	__u32 fpc;
117 	__u64 fprs[16];
118 };
119 
120 #define KVM_GUESTDBG_USE_HW_BP		0x00010000
121 
122 #define KVM_HW_BP			1
123 #define KVM_HW_WP_WRITE			2
124 #define KVM_SINGLESTEP			4
125 
126 struct kvm_debug_exit_arch {
127 	__u64 addr;
128 	__u8 type;
129 	__u8 pad[7]; /* Should be set to 0 */
130 };
131 
132 struct kvm_hw_breakpoint {
133 	__u64 addr;
134 	__u64 phys_addr;
135 	__u64 len;
136 	__u8 type;
137 	__u8 pad[7]; /* Should be set to 0 */
138 };
139 
140 /* for KVM_SET_GUEST_DEBUG */
141 struct kvm_guest_debug_arch {
142 	__u32 nr_hw_bp;
143 	__u32 pad; /* Should be set to 0 */
144 	struct kvm_hw_breakpoint __user *hw_bp;
145 };
146 
147 /* for KVM_SYNC_PFAULT and KVM_REG_S390_PFTOKEN */
148 #define KVM_S390_PFAULT_TOKEN_INVALID	0xffffffffffffffffULL
149 
150 #define KVM_SYNC_PREFIX (1UL << 0)
151 #define KVM_SYNC_GPRS   (1UL << 1)
152 #define KVM_SYNC_ACRS   (1UL << 2)
153 #define KVM_SYNC_CRS    (1UL << 3)
154 #define KVM_SYNC_ARCH0  (1UL << 4)
155 #define KVM_SYNC_PFAULT (1UL << 5)
156 #define KVM_SYNC_VRS    (1UL << 6)
157 #define KVM_SYNC_RICCB  (1UL << 7)
158 #define KVM_SYNC_FPRS   (1UL << 8)
159 /* definition of registers in kvm_run */
160 struct kvm_sync_regs {
161 	__u64 prefix;	/* prefix register */
162 	__u64 gprs[16];	/* general purpose registers */
163 	__u32 acrs[16];	/* access registers */
164 	__u64 crs[16];	/* control registers */
165 	__u64 todpr;	/* tod programmable register [ARCH0] */
166 	__u64 cputm;	/* cpu timer [ARCH0] */
167 	__u64 ckc;	/* clock comparator [ARCH0] */
168 	__u64 pp;	/* program parameter [ARCH0] */
169 	__u64 gbea;	/* guest breaking-event address [ARCH0] */
170 	__u64 pft;	/* pfault token [PFAULT] */
171 	__u64 pfs;	/* pfault select [PFAULT] */
172 	__u64 pfc;	/* pfault compare [PFAULT] */
173 	union {
174 		__u64 vrs[32][2];	/* vector registers (KVM_SYNC_VRS) */
175 		__u64 fprs[16];		/* fp registers (KVM_SYNC_FPRS) */
176 	};
177 	__u8  reserved[512];	/* for future vector expansion */
178 	__u32 fpc;		/* valid on KVM_SYNC_VRS or KVM_SYNC_FPRS */
179 	__u8 padding[52];	/* riccb needs to be 64byte aligned */
180 	__u8 riccb[64];		/* runtime instrumentation controls block */
181 };
182 
183 #define KVM_REG_S390_TODPR	(KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)
184 #define KVM_REG_S390_EPOCHDIFF	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2)
185 #define KVM_REG_S390_CPU_TIMER  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3)
186 #define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4)
187 #define KVM_REG_S390_PFTOKEN	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5)
188 #define KVM_REG_S390_PFCOMPARE	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6)
189 #define KVM_REG_S390_PFSELECT	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7)
190 #define KVM_REG_S390_PP		(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8)
191 #define KVM_REG_S390_GBEA	(KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9)
192 #endif
193