Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20180309' into...
[qemu/ar7.git] / linux-headers / asm-arm / kvm.h
blob4392955081fadbb7dd679156c22a7b4d87991614
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /*
3 * Copyright (C) 2012 - Virtual Open Systems and Columbia University
4 * Author: Christoffer Dall <c.dall@virtualopensystems.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License, version 2, as
8 * published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 #ifndef __ARM_KVM_H__
21 #define __ARM_KVM_H__
23 #include <linux/types.h>
24 #include <linux/psci.h>
25 #include <asm/ptrace.h>
27 #define __KVM_HAVE_GUEST_DEBUG
28 #define __KVM_HAVE_IRQ_LINE
29 #define __KVM_HAVE_READONLY_MEM
31 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
33 #define KVM_REG_SIZE(id) \
34 (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
36 /* Valid for svc_regs, abt_regs, und_regs, irq_regs in struct kvm_regs */
37 #define KVM_ARM_SVC_sp svc_regs[0]
38 #define KVM_ARM_SVC_lr svc_regs[1]
39 #define KVM_ARM_SVC_spsr svc_regs[2]
40 #define KVM_ARM_ABT_sp abt_regs[0]
41 #define KVM_ARM_ABT_lr abt_regs[1]
42 #define KVM_ARM_ABT_spsr abt_regs[2]
43 #define KVM_ARM_UND_sp und_regs[0]
44 #define KVM_ARM_UND_lr und_regs[1]
45 #define KVM_ARM_UND_spsr und_regs[2]
46 #define KVM_ARM_IRQ_sp irq_regs[0]
47 #define KVM_ARM_IRQ_lr irq_regs[1]
48 #define KVM_ARM_IRQ_spsr irq_regs[2]
50 /* Valid only for fiq_regs in struct kvm_regs */
51 #define KVM_ARM_FIQ_r8 fiq_regs[0]
52 #define KVM_ARM_FIQ_r9 fiq_regs[1]
53 #define KVM_ARM_FIQ_r10 fiq_regs[2]
54 #define KVM_ARM_FIQ_fp fiq_regs[3]
55 #define KVM_ARM_FIQ_ip fiq_regs[4]
56 #define KVM_ARM_FIQ_sp fiq_regs[5]
57 #define KVM_ARM_FIQ_lr fiq_regs[6]
58 #define KVM_ARM_FIQ_spsr fiq_regs[7]
60 struct kvm_regs {
61 struct pt_regs usr_regs; /* R0_usr - R14_usr, PC, CPSR */
62 unsigned long svc_regs[3]; /* SP_svc, LR_svc, SPSR_svc */
63 unsigned long abt_regs[3]; /* SP_abt, LR_abt, SPSR_abt */
64 unsigned long und_regs[3]; /* SP_und, LR_und, SPSR_und */
65 unsigned long irq_regs[3]; /* SP_irq, LR_irq, SPSR_irq */
66 unsigned long fiq_regs[8]; /* R8_fiq - R14_fiq, SPSR_fiq */
69 /* Supported Processor Types */
70 #define KVM_ARM_TARGET_CORTEX_A15 0
71 #define KVM_ARM_TARGET_CORTEX_A7 1
72 #define KVM_ARM_NUM_TARGETS 2
74 /* KVM_ARM_SET_DEVICE_ADDR ioctl id encoding */
75 #define KVM_ARM_DEVICE_TYPE_SHIFT 0
76 #define KVM_ARM_DEVICE_TYPE_MASK (0xffff << KVM_ARM_DEVICE_TYPE_SHIFT)
77 #define KVM_ARM_DEVICE_ID_SHIFT 16
78 #define KVM_ARM_DEVICE_ID_MASK (0xffff << KVM_ARM_DEVICE_ID_SHIFT)
80 /* Supported device IDs */
81 #define KVM_ARM_DEVICE_VGIC_V2 0
83 /* Supported VGIC address types */
84 #define KVM_VGIC_V2_ADDR_TYPE_DIST 0
85 #define KVM_VGIC_V2_ADDR_TYPE_CPU 1
87 #define KVM_VGIC_V2_DIST_SIZE 0x1000
88 #define KVM_VGIC_V2_CPU_SIZE 0x2000
90 /* Supported VGICv3 address types */
91 #define KVM_VGIC_V3_ADDR_TYPE_DIST 2
92 #define KVM_VGIC_V3_ADDR_TYPE_REDIST 3
93 #define KVM_VGIC_ITS_ADDR_TYPE 4
95 #define KVM_VGIC_V3_DIST_SIZE SZ_64K
96 #define KVM_VGIC_V3_REDIST_SIZE (2 * SZ_64K)
97 #define KVM_VGIC_V3_ITS_SIZE (2 * SZ_64K)
99 #define KVM_ARM_VCPU_POWER_OFF 0 /* CPU is started in OFF state */
100 #define KVM_ARM_VCPU_PSCI_0_2 1 /* CPU uses PSCI v0.2 */
102 struct kvm_vcpu_init {
103 __u32 target;
104 __u32 features[7];
107 struct kvm_sregs {
110 struct kvm_fpu {
113 struct kvm_guest_debug_arch {
116 struct kvm_debug_exit_arch {
119 struct kvm_sync_regs {
120 /* Used with KVM_CAP_ARM_USER_IRQ */
121 __u64 device_irq_level;
124 struct kvm_arch_memory_slot {
127 /* If you need to interpret the index values, here is the key: */
128 #define KVM_REG_ARM_COPROC_MASK 0x000000000FFF0000
129 #define KVM_REG_ARM_COPROC_SHIFT 16
130 #define KVM_REG_ARM_32_OPC2_MASK 0x0000000000000007
131 #define KVM_REG_ARM_32_OPC2_SHIFT 0
132 #define KVM_REG_ARM_OPC1_MASK 0x0000000000000078
133 #define KVM_REG_ARM_OPC1_SHIFT 3
134 #define KVM_REG_ARM_CRM_MASK 0x0000000000000780
135 #define KVM_REG_ARM_CRM_SHIFT 7
136 #define KVM_REG_ARM_32_CRN_MASK 0x0000000000007800
137 #define KVM_REG_ARM_32_CRN_SHIFT 11
139 #define ARM_CP15_REG_SHIFT_MASK(x,n) \
140 (((x) << KVM_REG_ARM_ ## n ## _SHIFT) & KVM_REG_ARM_ ## n ## _MASK)
142 #define __ARM_CP15_REG(op1,crn,crm,op2) \
143 (KVM_REG_ARM | (15 << KVM_REG_ARM_COPROC_SHIFT) | \
144 ARM_CP15_REG_SHIFT_MASK(op1, OPC1) | \
145 ARM_CP15_REG_SHIFT_MASK(crn, 32_CRN) | \
146 ARM_CP15_REG_SHIFT_MASK(crm, CRM) | \
147 ARM_CP15_REG_SHIFT_MASK(op2, 32_OPC2))
149 #define ARM_CP15_REG32(...) (__ARM_CP15_REG(__VA_ARGS__) | KVM_REG_SIZE_U32)
151 #define __ARM_CP15_REG64(op1,crm) \
152 (__ARM_CP15_REG(op1, 0, crm, 0) | KVM_REG_SIZE_U64)
153 #define ARM_CP15_REG64(...) __ARM_CP15_REG64(__VA_ARGS__)
155 /* PL1 Physical Timer Registers */
156 #define KVM_REG_ARM_PTIMER_CTL ARM_CP15_REG32(0, 14, 2, 1)
157 #define KVM_REG_ARM_PTIMER_CNT ARM_CP15_REG64(0, 14)
158 #define KVM_REG_ARM_PTIMER_CVAL ARM_CP15_REG64(2, 14)
160 /* Virtual Timer Registers */
161 #define KVM_REG_ARM_TIMER_CTL ARM_CP15_REG32(0, 14, 3, 1)
162 #define KVM_REG_ARM_TIMER_CNT ARM_CP15_REG64(1, 14)
163 #define KVM_REG_ARM_TIMER_CVAL ARM_CP15_REG64(3, 14)
165 /* Normal registers are mapped as coprocessor 16. */
166 #define KVM_REG_ARM_CORE (0x0010 << KVM_REG_ARM_COPROC_SHIFT)
167 #define KVM_REG_ARM_CORE_REG(name) (offsetof(struct kvm_regs, name) / 4)
169 /* Some registers need more space to represent values. */
170 #define KVM_REG_ARM_DEMUX (0x0011 << KVM_REG_ARM_COPROC_SHIFT)
171 #define KVM_REG_ARM_DEMUX_ID_MASK 0x000000000000FF00
172 #define KVM_REG_ARM_DEMUX_ID_SHIFT 8
173 #define KVM_REG_ARM_DEMUX_ID_CCSIDR (0x00 << KVM_REG_ARM_DEMUX_ID_SHIFT)
174 #define KVM_REG_ARM_DEMUX_VAL_MASK 0x00000000000000FF
175 #define KVM_REG_ARM_DEMUX_VAL_SHIFT 0
177 /* VFP registers: we could overload CP10 like ARM does, but that's ugly. */
178 #define KVM_REG_ARM_VFP (0x0012 << KVM_REG_ARM_COPROC_SHIFT)
179 #define KVM_REG_ARM_VFP_MASK 0x000000000000FFFF
180 #define KVM_REG_ARM_VFP_BASE_REG 0x0
181 #define KVM_REG_ARM_VFP_FPSID 0x1000
182 #define KVM_REG_ARM_VFP_FPSCR 0x1001
183 #define KVM_REG_ARM_VFP_MVFR1 0x1006
184 #define KVM_REG_ARM_VFP_MVFR0 0x1007
185 #define KVM_REG_ARM_VFP_FPEXC 0x1008
186 #define KVM_REG_ARM_VFP_FPINST 0x1009
187 #define KVM_REG_ARM_VFP_FPINST2 0x100A
189 /* Device Control API: ARM VGIC */
190 #define KVM_DEV_ARM_VGIC_GRP_ADDR 0
191 #define KVM_DEV_ARM_VGIC_GRP_DIST_REGS 1
192 #define KVM_DEV_ARM_VGIC_GRP_CPU_REGS 2
193 #define KVM_DEV_ARM_VGIC_CPUID_SHIFT 32
194 #define KVM_DEV_ARM_VGIC_CPUID_MASK (0xffULL << KVM_DEV_ARM_VGIC_CPUID_SHIFT)
195 #define KVM_DEV_ARM_VGIC_V3_MPIDR_SHIFT 32
196 #define KVM_DEV_ARM_VGIC_V3_MPIDR_MASK \
197 (0xffffffffULL << KVM_DEV_ARM_VGIC_V3_MPIDR_SHIFT)
198 #define KVM_DEV_ARM_VGIC_OFFSET_SHIFT 0
199 #define KVM_DEV_ARM_VGIC_OFFSET_MASK (0xffffffffULL << KVM_DEV_ARM_VGIC_OFFSET_SHIFT)
200 #define KVM_DEV_ARM_VGIC_SYSREG_INSTR_MASK (0xffff)
201 #define KVM_DEV_ARM_VGIC_GRP_NR_IRQS 3
202 #define KVM_DEV_ARM_VGIC_GRP_CTRL 4
203 #define KVM_DEV_ARM_VGIC_GRP_REDIST_REGS 5
204 #define KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS 6
205 #define KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO 7
206 #define KVM_DEV_ARM_VGIC_GRP_ITS_REGS 8
207 #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT 10
208 #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_MASK \
209 (0x3fffffULL << KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT)
210 #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INTID_MASK 0x3ff
211 #define VGIC_LEVEL_INFO_LINE_LEVEL 0
213 /* Device Control API on vcpu fd */
214 #define KVM_ARM_VCPU_PMU_V3_CTRL 0
215 #define KVM_ARM_VCPU_PMU_V3_IRQ 0
216 #define KVM_ARM_VCPU_PMU_V3_INIT 1
217 #define KVM_ARM_VCPU_TIMER_CTRL 1
218 #define KVM_ARM_VCPU_TIMER_IRQ_VTIMER 0
219 #define KVM_ARM_VCPU_TIMER_IRQ_PTIMER 1
221 #define KVM_DEV_ARM_VGIC_CTRL_INIT 0
222 #define KVM_DEV_ARM_ITS_SAVE_TABLES 1
223 #define KVM_DEV_ARM_ITS_RESTORE_TABLES 2
224 #define KVM_DEV_ARM_VGIC_SAVE_PENDING_TABLES 3
225 #define KVM_DEV_ARM_ITS_CTRL_RESET 4
227 /* KVM_IRQ_LINE irq field index values */
228 #define KVM_ARM_IRQ_TYPE_SHIFT 24
229 #define KVM_ARM_IRQ_TYPE_MASK 0xff
230 #define KVM_ARM_IRQ_VCPU_SHIFT 16
231 #define KVM_ARM_IRQ_VCPU_MASK 0xff
232 #define KVM_ARM_IRQ_NUM_SHIFT 0
233 #define KVM_ARM_IRQ_NUM_MASK 0xffff
235 /* irq_type field */
236 #define KVM_ARM_IRQ_TYPE_CPU 0
237 #define KVM_ARM_IRQ_TYPE_SPI 1
238 #define KVM_ARM_IRQ_TYPE_PPI 2
240 /* out-of-kernel GIC cpu interrupt injection irq_number field */
241 #define KVM_ARM_IRQ_CPU_IRQ 0
242 #define KVM_ARM_IRQ_CPU_FIQ 1
245 * This used to hold the highest supported SPI, but it is now obsolete
246 * and only here to provide source code level compatibility with older
247 * userland. The highest SPI number can be set via KVM_DEV_ARM_VGIC_GRP_NR_IRQS.
249 #define KVM_ARM_IRQ_GIC_MAX 127
251 /* One single KVM irqchip, ie. the VGIC */
252 #define KVM_NR_IRQCHIPS 1
254 /* PSCI interface */
255 #define KVM_PSCI_FN_BASE 0x95c1ba5e
256 #define KVM_PSCI_FN(n) (KVM_PSCI_FN_BASE + (n))
258 #define KVM_PSCI_FN_CPU_SUSPEND KVM_PSCI_FN(0)
259 #define KVM_PSCI_FN_CPU_OFF KVM_PSCI_FN(1)
260 #define KVM_PSCI_FN_CPU_ON KVM_PSCI_FN(2)
261 #define KVM_PSCI_FN_MIGRATE KVM_PSCI_FN(3)
263 #define KVM_PSCI_RET_SUCCESS PSCI_RET_SUCCESS
264 #define KVM_PSCI_RET_NI PSCI_RET_NOT_SUPPORTED
265 #define KVM_PSCI_RET_INVAL PSCI_RET_INVALID_PARAMS
266 #define KVM_PSCI_RET_DENIED PSCI_RET_DENIED
268 #endif /* __ARM_KVM_H__ */