target-arm/kvm-consts.h

   1 /*
   2  * KVM ARM ABI constant definitions
   3  *
   4  * Copyright (c) 2013 Linaro Limited
   5  *
   6  * Provide versions of KVM constant defines that can be used even
   7  * when CONFIG_KVM is not set and we don't have access to the
   8  * KVM headers. If CONFIG_KVM is set, we do a compile-time check
   9  * that we haven't got out of sync somehow.
  10  *
  11  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  12  * See the COPYING file in the top-level directory.
  13  */
  14 #ifndef ARM_KVM_CONSTS_H
  15 #define ARM_KVM_CONSTS_H
  16
  17 #ifdef CONFIG_KVM
  18 #include "qemu/compiler.h"
  19 #include <linux/kvm.h>
  20 #include <linux/psci.h>
  21
  22 #define MISMATCH_CHECK(X, Y) QEMU_BUILD_BUG_ON(X != Y)
  23
  24 #else
  25 #define MISMATCH_CHECK(X, Y)
  26 #endif
  27
  28 #define CP_REG_SIZE_SHIFT 52
  29 #define CP_REG_SIZE_MASK       0x00f0000000000000ULL
  30 #define CP_REG_SIZE_U32        0x0020000000000000ULL
  31 #define CP_REG_SIZE_U64        0x0030000000000000ULL
  32 #define CP_REG_ARM             0x4000000000000000ULL
  33 #define CP_REG_ARCH_MASK       0xff00000000000000ULL
  34
  35 MISMATCH_CHECK(CP_REG_SIZE_SHIFT, KVM_REG_SIZE_SHIFT)
  36 MISMATCH_CHECK(CP_REG_SIZE_MASK, KVM_REG_SIZE_MASK)
  37 MISMATCH_CHECK(CP_REG_SIZE_U32, KVM_REG_SIZE_U32)
  38 MISMATCH_CHECK(CP_REG_SIZE_U64, KVM_REG_SIZE_U64)
  39 MISMATCH_CHECK(CP_REG_ARM, KVM_REG_ARM)
  40 MISMATCH_CHECK(CP_REG_ARCH_MASK, KVM_REG_ARCH_MASK)
  41
  42 #define QEMU_PSCI_0_1_FN_BASE 0x95c1ba5e
  43 #define QEMU_PSCI_0_1_FN(n) (QEMU_PSCI_0_1_FN_BASE + (n))
  44 #define QEMU_PSCI_0_1_FN_CPU_SUSPEND QEMU_PSCI_0_1_FN(0)
  45 #define QEMU_PSCI_0_1_FN_CPU_OFF QEMU_PSCI_0_1_FN(1)
  46 #define QEMU_PSCI_0_1_FN_CPU_ON QEMU_PSCI_0_1_FN(2)
  47 #define QEMU_PSCI_0_1_FN_MIGRATE QEMU_PSCI_0_1_FN(3)
  48
  49 MISMATCH_CHECK(QEMU_PSCI_0_1_FN_CPU_SUSPEND, KVM_PSCI_FN_CPU_SUSPEND)
  50 MISMATCH_CHECK(QEMU_PSCI_0_1_FN_CPU_OFF, KVM_PSCI_FN_CPU_OFF)
  51 MISMATCH_CHECK(QEMU_PSCI_0_1_FN_CPU_ON, KVM_PSCI_FN_CPU_ON)
  52 MISMATCH_CHECK(QEMU_PSCI_0_1_FN_MIGRATE, KVM_PSCI_FN_MIGRATE)
  53
  54 #define QEMU_PSCI_0_2_FN_BASE 0x84000000
  55 #define QEMU_PSCI_0_2_FN(n) (QEMU_PSCI_0_2_FN_BASE + (n))
  56
  57 #define QEMU_PSCI_0_2_64BIT 0x40000000
  58 #define QEMU_PSCI_0_2_FN64_BASE \
  59         (QEMU_PSCI_0_2_FN_BASE + QEMU_PSCI_0_2_64BIT)
  60 #define QEMU_PSCI_0_2_FN64(n) (QEMU_PSCI_0_2_FN64_BASE + (n))
  61
  62 #define QEMU_PSCI_0_2_FN_PSCI_VERSION QEMU_PSCI_0_2_FN(0)
  63 #define QEMU_PSCI_0_2_FN_CPU_SUSPEND QEMU_PSCI_0_2_FN(1)
  64 #define QEMU_PSCI_0_2_FN_CPU_OFF QEMU_PSCI_0_2_FN(2)
  65 #define QEMU_PSCI_0_2_FN_CPU_ON QEMU_PSCI_0_2_FN(3)
  66 #define QEMU_PSCI_0_2_FN_AFFINITY_INFO QEMU_PSCI_0_2_FN(4)
  67 #define QEMU_PSCI_0_2_FN_MIGRATE QEMU_PSCI_0_2_FN(5)
  68 #define QEMU_PSCI_0_2_FN_MIGRATE_INFO_TYPE QEMU_PSCI_0_2_FN(6)
  69 #define QEMU_PSCI_0_2_FN_MIGRATE_INFO_UP_CPU QEMU_PSCI_0_2_FN(7)
  70 #define QEMU_PSCI_0_2_FN_SYSTEM_OFF QEMU_PSCI_0_2_FN(8)
  71 #define QEMU_PSCI_0_2_FN_SYSTEM_RESET QEMU_PSCI_0_2_FN(9)
  72
  73 #define QEMU_PSCI_0_2_FN64_CPU_SUSPEND QEMU_PSCI_0_2_FN64(1)
  74 #define QEMU_PSCI_0_2_FN64_CPU_OFF QEMU_PSCI_0_2_FN64(2)
  75 #define QEMU_PSCI_0_2_FN64_CPU_ON QEMU_PSCI_0_2_FN64(3)
  76 #define QEMU_PSCI_0_2_FN64_AFFINITY_INFO QEMU_PSCI_0_2_FN64(4)
  77 #define QEMU_PSCI_0_2_FN64_MIGRATE QEMU_PSCI_0_2_FN64(5)
  78
  79 MISMATCH_CHECK(QEMU_PSCI_0_2_FN_CPU_SUSPEND, PSCI_0_2_FN_CPU_SUSPEND)
  80 MISMATCH_CHECK(QEMU_PSCI_0_2_FN_CPU_OFF, PSCI_0_2_FN_CPU_OFF)
  81 MISMATCH_CHECK(QEMU_PSCI_0_2_FN_CPU_ON, PSCI_0_2_FN_CPU_ON)
  82 MISMATCH_CHECK(QEMU_PSCI_0_2_FN_MIGRATE, PSCI_0_2_FN_MIGRATE)
  83 MISMATCH_CHECK(QEMU_PSCI_0_2_FN64_CPU_SUSPEND, PSCI_0_2_FN64_CPU_SUSPEND)
  84 MISMATCH_CHECK(QEMU_PSCI_0_2_FN64_CPU_ON, PSCI_0_2_FN64_CPU_ON)
  85 MISMATCH_CHECK(QEMU_PSCI_0_2_FN64_MIGRATE, PSCI_0_2_FN64_MIGRATE)
  86
  87 /* PSCI v0.2 return values used by TCG emulation of PSCI */
  88
  89 /* No Trusted OS migration to worry about when offlining CPUs */
  90 #define QEMU_PSCI_0_2_RET_TOS_MIGRATION_NOT_REQUIRED        2
  91
  92 /* We implement version 0.2 only */
  93 #define QEMU_PSCI_0_2_RET_VERSION_0_2                       2
  94
  95 MISMATCH_CHECK(QEMU_PSCI_0_2_RET_TOS_MIGRATION_NOT_REQUIRED, PSCI_0_2_TOS_MP)
  96 MISMATCH_CHECK(QEMU_PSCI_0_2_RET_VERSION_0_2,
  97                (PSCI_VERSION_MAJOR(0) | PSCI_VERSION_MINOR(2)))
  98
  99 /* PSCI return values (inclusive of all PSCI versions) */
 100 #define QEMU_PSCI_RET_SUCCESS                     0
 101 #define QEMU_PSCI_RET_NOT_SUPPORTED               -1
 102 #define QEMU_PSCI_RET_INVALID_PARAMS              -2
 103 #define QEMU_PSCI_RET_DENIED                      -3
 104 #define QEMU_PSCI_RET_ALREADY_ON                  -4
 105 #define QEMU_PSCI_RET_ON_PENDING                  -5
 106 #define QEMU_PSCI_RET_INTERNAL_FAILURE            -6
 107 #define QEMU_PSCI_RET_NOT_PRESENT                 -7
 108 #define QEMU_PSCI_RET_DISABLED                    -8
 109
 110 MISMATCH_CHECK(QEMU_PSCI_RET_SUCCESS, PSCI_RET_SUCCESS)
 111 MISMATCH_CHECK(QEMU_PSCI_RET_NOT_SUPPORTED, PSCI_RET_NOT_SUPPORTED)
 112 MISMATCH_CHECK(QEMU_PSCI_RET_INVALID_PARAMS, PSCI_RET_INVALID_PARAMS)
 113 MISMATCH_CHECK(QEMU_PSCI_RET_DENIED, PSCI_RET_DENIED)
 114 MISMATCH_CHECK(QEMU_PSCI_RET_ALREADY_ON, PSCI_RET_ALREADY_ON)
 115 MISMATCH_CHECK(QEMU_PSCI_RET_ON_PENDING, PSCI_RET_ON_PENDING)
 116 MISMATCH_CHECK(QEMU_PSCI_RET_INTERNAL_FAILURE, PSCI_RET_INTERNAL_FAILURE)
 117 MISMATCH_CHECK(QEMU_PSCI_RET_NOT_PRESENT, PSCI_RET_NOT_PRESENT)
 118 MISMATCH_CHECK(QEMU_PSCI_RET_DISABLED, PSCI_RET_DISABLED)
 119
 120 /* Note that KVM uses overlapping values for AArch32 and AArch64
 121  * target CPU numbers. AArch32 targets:
 122  */
 123 #define QEMU_KVM_ARM_TARGET_CORTEX_A15 0
 124 #define QEMU_KVM_ARM_TARGET_CORTEX_A7 1
 125
 126 /* AArch64 targets: */
 127 #define QEMU_KVM_ARM_TARGET_AEM_V8 0
 128 #define QEMU_KVM_ARM_TARGET_FOUNDATION_V8 1
 129 #define QEMU_KVM_ARM_TARGET_CORTEX_A57 2
 130
 131 /* There's no kernel define for this: sentinel value which
 132  * matches no KVM target value for either 64 or 32 bit
 133  */
 134 #define QEMU_KVM_ARM_TARGET_NONE UINT_MAX
 135
 136 #ifdef TARGET_AARCH64
 137 MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_AEM_V8, KVM_ARM_TARGET_AEM_V8)
 138 MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_FOUNDATION_V8, KVM_ARM_TARGET_FOUNDATION_V8)
 139 MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_CORTEX_A57, KVM_ARM_TARGET_CORTEX_A57)
 140 #else
 141 MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_CORTEX_A15, KVM_ARM_TARGET_CORTEX_A15)
 142 MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_CORTEX_A7, KVM_ARM_TARGET_CORTEX_A7)
 143 #endif
 144
 145 #define CP_REG_ARM64                   0x6000000000000000ULL
 146 #define CP_REG_ARM_COPROC_MASK         0x000000000FFF0000
 147 #define CP_REG_ARM_COPROC_SHIFT        16
 148 #define CP_REG_ARM64_SYSREG            (0x0013 << CP_REG_ARM_COPROC_SHIFT)
 149 #define CP_REG_ARM64_SYSREG_OP0_MASK   0x000000000000c000
 150 #define CP_REG_ARM64_SYSREG_OP0_SHIFT  14
 151 #define CP_REG_ARM64_SYSREG_OP1_MASK   0x0000000000003800
 152 #define CP_REG_ARM64_SYSREG_OP1_SHIFT  11
 153 #define CP_REG_ARM64_SYSREG_CRN_MASK   0x0000000000000780
 154 #define CP_REG_ARM64_SYSREG_CRN_SHIFT  7
 155 #define CP_REG_ARM64_SYSREG_CRM_MASK   0x0000000000000078
 156 #define CP_REG_ARM64_SYSREG_CRM_SHIFT  3
 157 #define CP_REG_ARM64_SYSREG_OP2_MASK   0x0000000000000007
 158 #define CP_REG_ARM64_SYSREG_OP2_SHIFT  0
 159
 160 /* No kernel define but it's useful to QEMU */
 161 #define CP_REG_ARM64_SYSREG_CP (CP_REG_ARM64_SYSREG >> CP_REG_ARM_COPROC_SHIFT)
 162
 163 #ifdef TARGET_AARCH64
 164 MISMATCH_CHECK(CP_REG_ARM64, KVM_REG_ARM64)
 165 MISMATCH_CHECK(CP_REG_ARM_COPROC_MASK, KVM_REG_ARM_COPROC_MASK)
 166 MISMATCH_CHECK(CP_REG_ARM_COPROC_SHIFT, KVM_REG_ARM_COPROC_SHIFT)
 167 MISMATCH_CHECK(CP_REG_ARM64_SYSREG, KVM_REG_ARM64_SYSREG)
 168 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP0_MASK, KVM_REG_ARM64_SYSREG_OP0_MASK)
 169 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP0_SHIFT, KVM_REG_ARM64_SYSREG_OP0_SHIFT)
 170 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP1_MASK, KVM_REG_ARM64_SYSREG_OP1_MASK)
 171 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP1_SHIFT, KVM_REG_ARM64_SYSREG_OP1_SHIFT)
 172 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRN_MASK, KVM_REG_ARM64_SYSREG_CRN_MASK)
 173 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRN_SHIFT, KVM_REG_ARM64_SYSREG_CRN_SHIFT)
 174 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRM_MASK, KVM_REG_ARM64_SYSREG_CRM_MASK)
 175 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRM_SHIFT, KVM_REG_ARM64_SYSREG_CRM_SHIFT)
 176 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP2_MASK, KVM_REG_ARM64_SYSREG_OP2_MASK)
 177 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP2_SHIFT, KVM_REG_ARM64_SYSREG_OP2_SHIFT)
 178 #endif
 179
 180 #undef MISMATCH_CHECK
 181
 182 #endif