1 /* 2 * Copyright (C) 2012,2013 - ARM Ltd 3 * Author: Marc Zyngier <marc.zyngier@arm.com> 4 * 5 * Derived from arch/arm/include/uapi/asm/kvm.h: 6 * Copyright (C) 2012 - Virtual Open Systems and Columbia University 7 * Author: Christoffer Dall <c.dall@virtualopensystems.com> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program. If not, see <http://www.gnu.org/licenses/>. 20 */ 21 22 #ifndef __ARM_KVM_H__ 23 #define __ARM_KVM_H__ 24 25 #define KVM_SPSR_EL1 0 26 #define KVM_SPSR_SVC KVM_SPSR_EL1 27 #define KVM_SPSR_ABT 1 28 #define KVM_SPSR_UND 2 29 #define KVM_SPSR_IRQ 3 30 #define KVM_SPSR_FIQ 4 31 #define KVM_NR_SPSR 5 32 33 #ifndef __ASSEMBLY__ 34 #include <linux/psci.h> 35 #include <asm/types.h> 36 #include <asm/ptrace.h> 37 38 #define __KVM_HAVE_GUEST_DEBUG 39 #define __KVM_HAVE_IRQ_LINE 40 #define __KVM_HAVE_READONLY_MEM 41 42 #define KVM_REG_SIZE(id) \ 43 (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT)) 44 45 struct kvm_regs { 46 struct user_pt_regs regs; /* sp = sp_el0 */ 47 48 __u64 sp_el1; 49 __u64 elr_el1; 50 51 __u64 spsr[KVM_NR_SPSR]; 52 53 struct user_fpsimd_state fp_regs; 54 }; 55 56 /* Supported Processor Types */ 57 #define KVM_ARM_TARGET_AEM_V8 0 58 #define KVM_ARM_TARGET_FOUNDATION_V8 1 59 #define KVM_ARM_TARGET_CORTEX_A57 2 60 #define KVM_ARM_TARGET_XGENE_POTENZA 3 61 #define KVM_ARM_TARGET_CORTEX_A53 4 62 63 #define KVM_ARM_NUM_TARGETS 5 64 65 /* KVM_ARM_SET_DEVICE_ADDR ioctl id encoding */ 66 #define KVM_ARM_DEVICE_TYPE_SHIFT 0 67 #define KVM_ARM_DEVICE_TYPE_MASK (0xffff << KVM_ARM_DEVICE_TYPE_SHIFT) 68 #define KVM_ARM_DEVICE_ID_SHIFT 16 69 #define KVM_ARM_DEVICE_ID_MASK (0xffff << KVM_ARM_DEVICE_ID_SHIFT) 70 71 /* Supported device IDs */ 72 #define KVM_ARM_DEVICE_VGIC_V2 0 73 74 /* Supported VGIC address types */ 75 #define KVM_VGIC_V2_ADDR_TYPE_DIST 0 76 #define KVM_VGIC_V2_ADDR_TYPE_CPU 1 77 78 #define KVM_VGIC_V2_DIST_SIZE 0x1000 79 #define KVM_VGIC_V2_CPU_SIZE 0x2000 80 81 /* Supported VGICv3 address types */ 82 #define KVM_VGIC_V3_ADDR_TYPE_DIST 2 83 #define KVM_VGIC_V3_ADDR_TYPE_REDIST 3 84 85 #define KVM_VGIC_V3_DIST_SIZE SZ_64K 86 #define KVM_VGIC_V3_REDIST_SIZE (2 * SZ_64K) 87 88 #define KVM_ARM_VCPU_POWER_OFF 0 /* CPU is started in OFF state */ 89 #define KVM_ARM_VCPU_EL1_32BIT 1 /* CPU running a 32bit VM */ 90 #define KVM_ARM_VCPU_PSCI_0_2 2 /* CPU uses PSCI v0.2 */ 91 92 struct kvm_vcpu_init { 93 __u32 target; 94 __u32 features[7]; 95 }; 96 97 struct kvm_sregs { 98 }; 99 100 struct kvm_fpu { 101 }; 102 103 struct kvm_guest_debug_arch { 104 }; 105 106 struct kvm_debug_exit_arch { 107 }; 108 109 struct kvm_sync_regs { 110 }; 111 112 struct kvm_arch_memory_slot { 113 }; 114 115 /* If you need to interpret the index values, here is the key: */ 116 #define KVM_REG_ARM_COPROC_MASK 0x000000000FFF0000 117 #define KVM_REG_ARM_COPROC_SHIFT 16 118 119 /* Normal registers are mapped as coprocessor 16. */ 120 #define KVM_REG_ARM_CORE (0x0010 << KVM_REG_ARM_COPROC_SHIFT) 121 #define KVM_REG_ARM_CORE_REG(name) (offsetof(struct kvm_regs, name) / sizeof(__u32)) 122 123 /* Some registers need more space to represent values. */ 124 #define KVM_REG_ARM_DEMUX (0x0011 << KVM_REG_ARM_COPROC_SHIFT) 125 #define KVM_REG_ARM_DEMUX_ID_MASK 0x000000000000FF00 126 #define KVM_REG_ARM_DEMUX_ID_SHIFT 8 127 #define KVM_REG_ARM_DEMUX_ID_CCSIDR (0x00 << KVM_REG_ARM_DEMUX_ID_SHIFT) 128 #define KVM_REG_ARM_DEMUX_VAL_MASK 0x00000000000000FF 129 #define KVM_REG_ARM_DEMUX_VAL_SHIFT 0 130 131 /* AArch64 system registers */ 132 #define KVM_REG_ARM64_SYSREG (0x0013 << KVM_REG_ARM_COPROC_SHIFT) 133 #define KVM_REG_ARM64_SYSREG_OP0_MASK 0x000000000000c000 134 #define KVM_REG_ARM64_SYSREG_OP0_SHIFT 14 135 #define KVM_REG_ARM64_SYSREG_OP1_MASK 0x0000000000003800 136 #define KVM_REG_ARM64_SYSREG_OP1_SHIFT 11 137 #define KVM_REG_ARM64_SYSREG_CRN_MASK 0x0000000000000780 138 #define KVM_REG_ARM64_SYSREG_CRN_SHIFT 7 139 #define KVM_REG_ARM64_SYSREG_CRM_MASK 0x0000000000000078 140 #define KVM_REG_ARM64_SYSREG_CRM_SHIFT 3 141 #define KVM_REG_ARM64_SYSREG_OP2_MASK 0x0000000000000007 142 #define KVM_REG_ARM64_SYSREG_OP2_SHIFT 0 143 144 #define ARM64_SYS_REG_SHIFT_MASK(x,n) \ 145 (((x) << KVM_REG_ARM64_SYSREG_ ## n ## _SHIFT) & \ 146 KVM_REG_ARM64_SYSREG_ ## n ## _MASK) 147 148 #define __ARM64_SYS_REG(op0,op1,crn,crm,op2) \ 149 (KVM_REG_ARM64 | KVM_REG_ARM64_SYSREG | \ 150 ARM64_SYS_REG_SHIFT_MASK(op0, OP0) | \ 151 ARM64_SYS_REG_SHIFT_MASK(op1, OP1) | \ 152 ARM64_SYS_REG_SHIFT_MASK(crn, CRN) | \ 153 ARM64_SYS_REG_SHIFT_MASK(crm, CRM) | \ 154 ARM64_SYS_REG_SHIFT_MASK(op2, OP2)) 155 156 #define ARM64_SYS_REG(...) (__ARM64_SYS_REG(__VA_ARGS__) | KVM_REG_SIZE_U64) 157 158 #define KVM_REG_ARM_TIMER_CTL ARM64_SYS_REG(3, 3, 14, 3, 1) 159 #define KVM_REG_ARM_TIMER_CNT ARM64_SYS_REG(3, 3, 14, 3, 2) 160 #define KVM_REG_ARM_TIMER_CVAL ARM64_SYS_REG(3, 3, 14, 0, 2) 161 162 /* Device Control API: ARM VGIC */ 163 #define KVM_DEV_ARM_VGIC_GRP_ADDR 0 164 #define KVM_DEV_ARM_VGIC_GRP_DIST_REGS 1 165 #define KVM_DEV_ARM_VGIC_GRP_CPU_REGS 2 166 #define KVM_DEV_ARM_VGIC_CPUID_SHIFT 32 167 #define KVM_DEV_ARM_VGIC_CPUID_MASK (0xffULL << KVM_DEV_ARM_VGIC_CPUID_SHIFT) 168 #define KVM_DEV_ARM_VGIC_OFFSET_SHIFT 0 169 #define KVM_DEV_ARM_VGIC_OFFSET_MASK (0xffffffffULL << KVM_DEV_ARM_VGIC_OFFSET_SHIFT) 170 #define KVM_DEV_ARM_VGIC_GRP_NR_IRQS 3 171 #define KVM_DEV_ARM_VGIC_GRP_CTRL 4 172 #define KVM_DEV_ARM_VGIC_CTRL_INIT 0 173 174 /* KVM_IRQ_LINE irq field index values */ 175 #define KVM_ARM_IRQ_TYPE_SHIFT 24 176 #define KVM_ARM_IRQ_TYPE_MASK 0xff 177 #define KVM_ARM_IRQ_VCPU_SHIFT 16 178 #define KVM_ARM_IRQ_VCPU_MASK 0xff 179 #define KVM_ARM_IRQ_NUM_SHIFT 0 180 #define KVM_ARM_IRQ_NUM_MASK 0xffff 181 182 /* irq_type field */ 183 #define KVM_ARM_IRQ_TYPE_CPU 0 184 #define KVM_ARM_IRQ_TYPE_SPI 1 185 #define KVM_ARM_IRQ_TYPE_PPI 2 186 187 /* out-of-kernel GIC cpu interrupt injection irq_number field */ 188 #define KVM_ARM_IRQ_CPU_IRQ 0 189 #define KVM_ARM_IRQ_CPU_FIQ 1 190 191 /* 192 * This used to hold the highest supported SPI, but it is now obsolete 193 * and only here to provide source code level compatibility with older 194 * userland. The highest SPI number can be set via KVM_DEV_ARM_VGIC_GRP_NR_IRQS. 195 */ 196 #ifndef __KERNEL__ 197 #define KVM_ARM_IRQ_GIC_MAX 127 198 #endif 199 200 /* One single KVM irqchip, ie. the VGIC */ 201 #define KVM_NR_IRQCHIPS 1 202 203 /* PSCI interface */ 204 #define KVM_PSCI_FN_BASE 0x95c1ba5e 205 #define KVM_PSCI_FN(n) (KVM_PSCI_FN_BASE + (n)) 206 207 #define KVM_PSCI_FN_CPU_SUSPEND KVM_PSCI_FN(0) 208 #define KVM_PSCI_FN_CPU_OFF KVM_PSCI_FN(1) 209 #define KVM_PSCI_FN_CPU_ON KVM_PSCI_FN(2) 210 #define KVM_PSCI_FN_MIGRATE KVM_PSCI_FN(3) 211 212 #define KVM_PSCI_RET_SUCCESS PSCI_RET_SUCCESS 213 #define KVM_PSCI_RET_NI PSCI_RET_NOT_SUPPORTED 214 #define KVM_PSCI_RET_INVAL PSCI_RET_INVALID_PARAMS 215 #define KVM_PSCI_RET_DENIED PSCI_RET_DENIED 216 217 #endif 218 219 #endif /* __ARM_KVM_H__ */ 220