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 NEED_CPU_H
  18 #ifdef CONFIG_KVM
  19 #include <linux/kvm.h>
  20 #include <linux/psci.h>
  21 #define MISMATCH_CHECK(X, Y) QEMU_BUILD_BUG_ON(X != Y)
  22 #endif
  23 #endif
  24
  25 #ifndef MISMATCH_CHECK
  26 #define MISMATCH_CHECK(X, Y) QEMU_BUILD_BUG_ON(0)
  27 #endif
  28
  29 #define CP_REG_SIZE_SHIFT 52
  30 #define CP_REG_SIZE_MASK       0x00f0000000000000ULL
  31 #define CP_REG_SIZE_U32        0x0020000000000000ULL
  32 #define CP_REG_SIZE_U64        0x0030000000000000ULL
  33 #define CP_REG_ARM             0x4000000000000000ULL
  34 #define CP_REG_ARCH_MASK       0xff00000000000000ULL
  35
  36 MISMATCH_CHECK(CP_REG_SIZE_SHIFT, KVM_REG_SIZE_SHIFT);
  37 MISMATCH_CHECK(CP_REG_SIZE_MASK, KVM_REG_SIZE_MASK);
  38 MISMATCH_CHECK(CP_REG_SIZE_U32, KVM_REG_SIZE_U32);
  39 MISMATCH_CHECK(CP_REG_SIZE_U64, KVM_REG_SIZE_U64);
  40 MISMATCH_CHECK(CP_REG_ARM, KVM_REG_ARM);
  41 MISMATCH_CHECK(CP_REG_ARCH_MASK, KVM_REG_ARCH_MASK);
  42
  43 #define QEMU_PSCI_0_1_FN_BASE 0x95c1ba5e
  44 #define QEMU_PSCI_0_1_FN(n) (QEMU_PSCI_0_1_FN_BASE + (n))
  45 #define QEMU_PSCI_0_1_FN_CPU_SUSPEND QEMU_PSCI_0_1_FN(0)
  46 #define QEMU_PSCI_0_1_FN_CPU_OFF QEMU_PSCI_0_1_FN(1)
  47 #define QEMU_PSCI_0_1_FN_CPU_ON QEMU_PSCI_0_1_FN(2)
  48 #define QEMU_PSCI_0_1_FN_MIGRATE QEMU_PSCI_0_1_FN(3)
  49
  50 MISMATCH_CHECK(QEMU_PSCI_0_1_FN_CPU_SUSPEND, KVM_PSCI_FN_CPU_SUSPEND);
  51 MISMATCH_CHECK(QEMU_PSCI_0_1_FN_CPU_OFF, KVM_PSCI_FN_CPU_OFF);
  52 MISMATCH_CHECK(QEMU_PSCI_0_1_FN_CPU_ON, KVM_PSCI_FN_CPU_ON);
  53 MISMATCH_CHECK(QEMU_PSCI_0_1_FN_MIGRATE, KVM_PSCI_FN_MIGRATE);
  54
  55 #define QEMU_PSCI_0_2_FN_BASE 0x84000000
  56 #define QEMU_PSCI_0_2_FN(n) (QEMU_PSCI_0_2_FN_BASE + (n))
  57
  58 #define QEMU_PSCI_0_2_64BIT 0x40000000
  59 #define QEMU_PSCI_0_2_FN64_BASE \
  60         (QEMU_PSCI_0_2_FN_BASE + QEMU_PSCI_0_2_64BIT)
  61 #define QEMU_PSCI_0_2_FN64(n) (QEMU_PSCI_0_2_FN64_BASE + (n))
  62
  63 #define QEMU_PSCI_0_2_FN_PSCI_VERSION QEMU_PSCI_0_2_FN(0)
  64 #define QEMU_PSCI_0_2_FN_CPU_SUSPEND QEMU_PSCI_0_2_FN(1)
  65 #define QEMU_PSCI_0_2_FN_CPU_OFF QEMU_PSCI_0_2_FN(2)
  66 #define QEMU_PSCI_0_2_FN_CPU_ON QEMU_PSCI_0_2_FN(3)
  67 #define QEMU_PSCI_0_2_FN_AFFINITY_INFO QEMU_PSCI_0_2_FN(4)
  68 #define QEMU_PSCI_0_2_FN_MIGRATE QEMU_PSCI_0_2_FN(5)
  69 #define QEMU_PSCI_0_2_FN_MIGRATE_INFO_TYPE QEMU_PSCI_0_2_FN(6)
  70 #define QEMU_PSCI_0_2_FN_MIGRATE_INFO_UP_CPU QEMU_PSCI_0_2_FN(7)
  71 #define QEMU_PSCI_0_2_FN_SYSTEM_OFF QEMU_PSCI_0_2_FN(8)
  72 #define QEMU_PSCI_0_2_FN_SYSTEM_RESET QEMU_PSCI_0_2_FN(9)
  73
  74 #define QEMU_PSCI_0_2_FN64_CPU_SUSPEND QEMU_PSCI_0_2_FN64(1)
  75 #define QEMU_PSCI_0_2_FN64_CPU_OFF QEMU_PSCI_0_2_FN64(2)
  76 #define QEMU_PSCI_0_2_FN64_CPU_ON QEMU_PSCI_0_2_FN64(3)
  77 #define QEMU_PSCI_0_2_FN64_AFFINITY_INFO QEMU_PSCI_0_2_FN64(4)
  78 #define QEMU_PSCI_0_2_FN64_MIGRATE QEMU_PSCI_0_2_FN64(5)
  79
  80 #define QEMU_PSCI_1_0_FN_PSCI_FEATURES QEMU_PSCI_0_2_FN(10)
  81
  82 MISMATCH_CHECK(QEMU_PSCI_0_2_FN_CPU_SUSPEND, PSCI_0_2_FN_CPU_SUSPEND);
  83 MISMATCH_CHECK(QEMU_PSCI_0_2_FN_CPU_OFF, PSCI_0_2_FN_CPU_OFF);
  84 MISMATCH_CHECK(QEMU_PSCI_0_2_FN_CPU_ON, PSCI_0_2_FN_CPU_ON);
  85 MISMATCH_CHECK(QEMU_PSCI_0_2_FN_MIGRATE, PSCI_0_2_FN_MIGRATE);
  86 MISMATCH_CHECK(QEMU_PSCI_0_2_FN64_CPU_SUSPEND, PSCI_0_2_FN64_CPU_SUSPEND);
  87 MISMATCH_CHECK(QEMU_PSCI_0_2_FN64_CPU_ON, PSCI_0_2_FN64_CPU_ON);
  88 MISMATCH_CHECK(QEMU_PSCI_0_2_FN64_MIGRATE, PSCI_0_2_FN64_MIGRATE);
  89 MISMATCH_CHECK(QEMU_PSCI_1_0_FN_PSCI_FEATURES, PSCI_1_0_FN_PSCI_FEATURES);
  90
  91 /* PSCI v0.2 return values used by TCG emulation of PSCI */
  92
  93 /* No Trusted OS migration to worry about when offlining CPUs */
  94 #define QEMU_PSCI_0_2_RET_TOS_MIGRATION_NOT_REQUIRED        2
  95
  96 #define QEMU_PSCI_VERSION_0_1                     0x00001
  97 #define QEMU_PSCI_VERSION_0_2                     0x00002
  98 #define QEMU_PSCI_VERSION_1_0                     0x10000
  99 #define QEMU_PSCI_VERSION_1_1                     0x10001
 100
 101 MISMATCH_CHECK(QEMU_PSCI_0_2_RET_TOS_MIGRATION_NOT_REQUIRED, PSCI_0_2_TOS_MP);
 102 /* We don't bother to check every possible version value */
 103 MISMATCH_CHECK(QEMU_PSCI_VERSION_0_2, PSCI_VERSION(0, 2));
 104 MISMATCH_CHECK(QEMU_PSCI_VERSION_1_1, PSCI_VERSION(1, 1));
 105
 106 /* PSCI return values (inclusive of all PSCI versions) */
 107 #define QEMU_PSCI_RET_SUCCESS                     0
 108 #define QEMU_PSCI_RET_NOT_SUPPORTED               -1
 109 #define QEMU_PSCI_RET_INVALID_PARAMS              -2
 110 #define QEMU_PSCI_RET_DENIED                      -3
 111 #define QEMU_PSCI_RET_ALREADY_ON                  -4
 112 #define QEMU_PSCI_RET_ON_PENDING                  -5
 113 #define QEMU_PSCI_RET_INTERNAL_FAILURE            -6
 114 #define QEMU_PSCI_RET_NOT_PRESENT                 -7
 115 #define QEMU_PSCI_RET_DISABLED                    -8
 116
 117 MISMATCH_CHECK(QEMU_PSCI_RET_SUCCESS, PSCI_RET_SUCCESS);
 118 MISMATCH_CHECK(QEMU_PSCI_RET_NOT_SUPPORTED, PSCI_RET_NOT_SUPPORTED);
 119 MISMATCH_CHECK(QEMU_PSCI_RET_INVALID_PARAMS, PSCI_RET_INVALID_PARAMS);
 120 MISMATCH_CHECK(QEMU_PSCI_RET_DENIED, PSCI_RET_DENIED);
 121 MISMATCH_CHECK(QEMU_PSCI_RET_ALREADY_ON, PSCI_RET_ALREADY_ON);
 122 MISMATCH_CHECK(QEMU_PSCI_RET_ON_PENDING, PSCI_RET_ON_PENDING);
 123 MISMATCH_CHECK(QEMU_PSCI_RET_INTERNAL_FAILURE, PSCI_RET_INTERNAL_FAILURE);
 124 MISMATCH_CHECK(QEMU_PSCI_RET_NOT_PRESENT, PSCI_RET_NOT_PRESENT);
 125 MISMATCH_CHECK(QEMU_PSCI_RET_DISABLED, PSCI_RET_DISABLED);
 126
 127 /*
 128  * Note that KVM uses overlapping values for AArch32 and AArch64
 129  * target CPU numbers. AArch64 targets:
 130  */
 131 #define QEMU_KVM_ARM_TARGET_AEM_V8 0
 132 #define QEMU_KVM_ARM_TARGET_FOUNDATION_V8 1
 133 #define QEMU_KVM_ARM_TARGET_CORTEX_A57 2
 134 #define QEMU_KVM_ARM_TARGET_XGENE_POTENZA 3
 135 #define QEMU_KVM_ARM_TARGET_CORTEX_A53 4
 136
 137 /* There's no kernel define for this: sentinel value which
 138  * matches no KVM target value for either 64 or 32 bit
 139  */
 140 #define QEMU_KVM_ARM_TARGET_NONE UINT_MAX
 141
 142 MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_AEM_V8, KVM_ARM_TARGET_AEM_V8);
 143 MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_FOUNDATION_V8, KVM_ARM_TARGET_FOUNDATION_V8);
 144 MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_CORTEX_A57, KVM_ARM_TARGET_CORTEX_A57);
 145 MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_XGENE_POTENZA, KVM_ARM_TARGET_XGENE_POTENZA);
 146 MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_CORTEX_A53, KVM_ARM_TARGET_CORTEX_A53);
 147
 148 #define CP_REG_ARM64                   0x6000000000000000ULL
 149 #define CP_REG_ARM_COPROC_MASK         0x000000000FFF0000
 150 #define CP_REG_ARM_COPROC_SHIFT        16
 151 #define CP_REG_ARM64_SYSREG            (0x0013 << CP_REG_ARM_COPROC_SHIFT)
 152 #define CP_REG_ARM64_SYSREG_OP0_MASK   0x000000000000c000
 153 #define CP_REG_ARM64_SYSREG_OP0_SHIFT  14
 154 #define CP_REG_ARM64_SYSREG_OP1_MASK   0x0000000000003800
 155 #define CP_REG_ARM64_SYSREG_OP1_SHIFT  11
 156 #define CP_REG_ARM64_SYSREG_CRN_MASK   0x0000000000000780
 157 #define CP_REG_ARM64_SYSREG_CRN_SHIFT  7
 158 #define CP_REG_ARM64_SYSREG_CRM_MASK   0x0000000000000078
 159 #define CP_REG_ARM64_SYSREG_CRM_SHIFT  3
 160 #define CP_REG_ARM64_SYSREG_OP2_MASK   0x0000000000000007
 161 #define CP_REG_ARM64_SYSREG_OP2_SHIFT  0
 162
 163 /* No kernel define but it's useful to QEMU */
 164 #define CP_REG_ARM64_SYSREG_CP (CP_REG_ARM64_SYSREG >> CP_REG_ARM_COPROC_SHIFT)
 165
 166 MISMATCH_CHECK(CP_REG_ARM64, KVM_REG_ARM64);
 167 MISMATCH_CHECK(CP_REG_ARM_COPROC_MASK, KVM_REG_ARM_COPROC_MASK);
 168 MISMATCH_CHECK(CP_REG_ARM_COPROC_SHIFT, KVM_REG_ARM_COPROC_SHIFT);
 169 MISMATCH_CHECK(CP_REG_ARM64_SYSREG, KVM_REG_ARM64_SYSREG);
 170 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP0_MASK, KVM_REG_ARM64_SYSREG_OP0_MASK);
 171 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP0_SHIFT, KVM_REG_ARM64_SYSREG_OP0_SHIFT);
 172 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP1_MASK, KVM_REG_ARM64_SYSREG_OP1_MASK);
 173 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP1_SHIFT, KVM_REG_ARM64_SYSREG_OP1_SHIFT);
 174 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRN_MASK, KVM_REG_ARM64_SYSREG_CRN_MASK);
 175 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRN_SHIFT, KVM_REG_ARM64_SYSREG_CRN_SHIFT);
 176 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRM_MASK, KVM_REG_ARM64_SYSREG_CRM_MASK);
 177 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRM_SHIFT, KVM_REG_ARM64_SYSREG_CRM_SHIFT);
 178 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP2_MASK, KVM_REG_ARM64_SYSREG_OP2_MASK);
 179 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP2_SHIFT, KVM_REG_ARM64_SYSREG_OP2_SHIFT);
 180
 181 #undef MISMATCH_CHECK
 182
 183 #endif