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 <asm/types.h> 35 #include <asm/ptrace.h> 36 37 #define __KVM_HAVE_GUEST_DEBUG 38 #define __KVM_HAVE_IRQ_LINE 39 40 #define KVM_REG_SIZE(id) \ 41 (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT)) 42 43 struct kvm_regs { 44 struct user_pt_regs regs; /* sp = sp_el0 */ 45 46 __u64 sp_el1; 47 __u64 elr_el1; 48 49 __u64 spsr[KVM_NR_SPSR]; 50 51 struct user_fpsimd_state fp_regs; 52 }; 53 54 /* Supported Processor Types */ 55 #define KVM_ARM_TARGET_AEM_V8 0 56 #define KVM_ARM_TARGET_FOUNDATION_V8 1 57 #define KVM_ARM_TARGET_CORTEX_A57 2 58 #define KVM_ARM_TARGET_XGENE_POTENZA 3 59 60 #define KVM_ARM_NUM_TARGETS 4 61 62 /* KVM_ARM_SET_DEVICE_ADDR ioctl id encoding */ 63 #define KVM_ARM_DEVICE_TYPE_SHIFT 0 64 #define KVM_ARM_DEVICE_TYPE_MASK (0xffff << KVM_ARM_DEVICE_TYPE_SHIFT) 65 #define KVM_ARM_DEVICE_ID_SHIFT 16 66 #define KVM_ARM_DEVICE_ID_MASK (0xffff << KVM_ARM_DEVICE_ID_SHIFT) 67 68 /* Supported device IDs */ 69 #define KVM_ARM_DEVICE_VGIC_V2 0 70 71 /* Supported VGIC address types */ 72 #define KVM_VGIC_V2_ADDR_TYPE_DIST 0 73 #define KVM_VGIC_V2_ADDR_TYPE_CPU 1 74 75 #define KVM_VGIC_V2_DIST_SIZE 0x1000 76 #define KVM_VGIC_V2_CPU_SIZE 0x2000 77 78 #define KVM_ARM_VCPU_POWER_OFF 0 /* CPU is started in OFF state */ 79 #define KVM_ARM_VCPU_EL1_32BIT 1 /* CPU running a 32bit VM */ 80 81 struct kvm_vcpu_init { 82 __u32 target; 83 __u32 features[7]; 84 }; 85 86 struct kvm_sregs { 87 }; 88 89 struct kvm_fpu { 90 }; 91 92 struct kvm_guest_debug_arch { 93 }; 94 95 struct kvm_debug_exit_arch { 96 }; 97 98 struct kvm_sync_regs { 99 }; 100 101 struct kvm_arch_memory_slot { 102 }; 103 104 /* If you need to interpret the index values, here is the key: */ 105 #define KVM_REG_ARM_COPROC_MASK 0x000000000FFF0000 106 #define KVM_REG_ARM_COPROC_SHIFT 16 107 108 /* Normal registers are mapped as coprocessor 16. */ 109 #define KVM_REG_ARM_CORE (0x0010 << KVM_REG_ARM_COPROC_SHIFT) 110 #define KVM_REG_ARM_CORE_REG(name) (offsetof(struct kvm_regs, name) / sizeof(__u32)) 111 112 /* Some registers need more space to represent values. */ 113 #define KVM_REG_ARM_DEMUX (0x0011 << KVM_REG_ARM_COPROC_SHIFT) 114 #define KVM_REG_ARM_DEMUX_ID_MASK 0x000000000000FF00 115 #define KVM_REG_ARM_DEMUX_ID_SHIFT 8 116 #define KVM_REG_ARM_DEMUX_ID_CCSIDR (0x00 << KVM_REG_ARM_DEMUX_ID_SHIFT) 117 #define KVM_REG_ARM_DEMUX_VAL_MASK 0x00000000000000FF 118 #define KVM_REG_ARM_DEMUX_VAL_SHIFT 0 119 120 /* AArch64 system registers */ 121 #define KVM_REG_ARM64_SYSREG (0x0013 << KVM_REG_ARM_COPROC_SHIFT) 122 #define KVM_REG_ARM64_SYSREG_OP0_MASK 0x000000000000c000 123 #define KVM_REG_ARM64_SYSREG_OP0_SHIFT 14 124 #define KVM_REG_ARM64_SYSREG_OP1_MASK 0x0000000000003800 125 #define KVM_REG_ARM64_SYSREG_OP1_SHIFT 11 126 #define KVM_REG_ARM64_SYSREG_CRN_MASK 0x0000000000000780 127 #define KVM_REG_ARM64_SYSREG_CRN_SHIFT 7 128 #define KVM_REG_ARM64_SYSREG_CRM_MASK 0x0000000000000078 129 #define KVM_REG_ARM64_SYSREG_CRM_SHIFT 3 130 #define KVM_REG_ARM64_SYSREG_OP2_MASK 0x0000000000000007 131 #define KVM_REG_ARM64_SYSREG_OP2_SHIFT 0 132 133 #define ARM64_SYS_REG_SHIFT_MASK(x,n) \ 134 (((x) << KVM_REG_ARM64_SYSREG_ ## n ## _SHIFT) & \ 135 KVM_REG_ARM64_SYSREG_ ## n ## _MASK) 136 137 #define __ARM64_SYS_REG(op0,op1,crn,crm,op2) \ 138 (KVM_REG_ARM64 | KVM_REG_ARM64_SYSREG | \ 139 ARM64_SYS_REG_SHIFT_MASK(op0, OP0) | \ 140 ARM64_SYS_REG_SHIFT_MASK(op1, OP1) | \ 141 ARM64_SYS_REG_SHIFT_MASK(crn, CRN) | \ 142 ARM64_SYS_REG_SHIFT_MASK(crm, CRM) | \ 143 ARM64_SYS_REG_SHIFT_MASK(op2, OP2)) 144 145 #define ARM64_SYS_REG(...) (__ARM64_SYS_REG(__VA_ARGS__) | KVM_REG_SIZE_U64) 146 147 #define KVM_REG_ARM_TIMER_CTL ARM64_SYS_REG(3, 3, 14, 3, 1) 148 #define KVM_REG_ARM_TIMER_CNT ARM64_SYS_REG(3, 3, 14, 3, 2) 149 #define KVM_REG_ARM_TIMER_CVAL ARM64_SYS_REG(3, 3, 14, 0, 2) 150 151 /* Device Control API: ARM VGIC */ 152 #define KVM_DEV_ARM_VGIC_GRP_ADDR 0 153 #define KVM_DEV_ARM_VGIC_GRP_DIST_REGS 1 154 #define KVM_DEV_ARM_VGIC_GRP_CPU_REGS 2 155 #define KVM_DEV_ARM_VGIC_CPUID_SHIFT 32 156 #define KVM_DEV_ARM_VGIC_CPUID_MASK (0xffULL << KVM_DEV_ARM_VGIC_CPUID_SHIFT) 157 #define KVM_DEV_ARM_VGIC_OFFSET_SHIFT 0 158 #define KVM_DEV_ARM_VGIC_OFFSET_MASK (0xffffffffULL << KVM_DEV_ARM_VGIC_OFFSET_SHIFT) 159 160 /* KVM_IRQ_LINE irq field index values */ 161 #define KVM_ARM_IRQ_TYPE_SHIFT 24 162 #define KVM_ARM_IRQ_TYPE_MASK 0xff 163 #define KVM_ARM_IRQ_VCPU_SHIFT 16 164 #define KVM_ARM_IRQ_VCPU_MASK 0xff 165 #define KVM_ARM_IRQ_NUM_SHIFT 0 166 #define KVM_ARM_IRQ_NUM_MASK 0xffff 167 168 /* irq_type field */ 169 #define KVM_ARM_IRQ_TYPE_CPU 0 170 #define KVM_ARM_IRQ_TYPE_SPI 1 171 #define KVM_ARM_IRQ_TYPE_PPI 2 172 173 /* out-of-kernel GIC cpu interrupt injection irq_number field */ 174 #define KVM_ARM_IRQ_CPU_IRQ 0 175 #define KVM_ARM_IRQ_CPU_FIQ 1 176 177 /* Highest supported SPI, from VGIC_NR_IRQS */ 178 #define KVM_ARM_IRQ_GIC_MAX 127 179 180 /* PSCI interface */ 181 #define KVM_PSCI_FN_BASE 0x95c1ba5e 182 #define KVM_PSCI_FN(n) (KVM_PSCI_FN_BASE + (n)) 183 184 #define KVM_PSCI_FN_CPU_SUSPEND KVM_PSCI_FN(0) 185 #define KVM_PSCI_FN_CPU_OFF KVM_PSCI_FN(1) 186 #define KVM_PSCI_FN_CPU_ON KVM_PSCI_FN(2) 187 #define KVM_PSCI_FN_MIGRATE KVM_PSCI_FN(3) 188 189 #define KVM_PSCI_RET_SUCCESS 0 190 #define KVM_PSCI_RET_NI ((unsigned long)-1) 191 #define KVM_PSCI_RET_INVAL ((unsigned long)-2) 192 #define KVM_PSCI_RET_DENIED ((unsigned long)-3) 193 194 #endif 195 196 #endif /* __ARM_KVM_H__ */ 197