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_CPU_SUSPEND QEMU_PSCI_0_2_FN(1)
  63 #define QEMU_PSCI_0_2_FN_CPU_OFF QEMU_PSCI_0_2_FN(2)
  64 #define QEMU_PSCI_0_2_FN_CPU_ON QEMU_PSCI_0_2_FN(3)
  65 #define QEMU_PSCI_0_2_FN_MIGRATE QEMU_PSCI_0_2_FN(5)
  66
  67 #define QEMU_PSCI_0_2_FN64_CPU_SUSPEND QEMU_PSCI_0_2_FN64(1)
  68 #define QEMU_PSCI_0_2_FN64_CPU_OFF QEMU_PSCI_0_2_FN64(2)
  69 #define QEMU_PSCI_0_2_FN64_CPU_ON QEMU_PSCI_0_2_FN64(3)
  70 #define QEMU_PSCI_0_2_FN64_MIGRATE QEMU_PSCI_0_2_FN64(5)
  71
  72 MISMATCH_CHECK(QEMU_PSCI_0_2_FN_CPU_SUSPEND, PSCI_0_2_FN_CPU_SUSPEND)
  73 MISMATCH_CHECK(QEMU_PSCI_0_2_FN_CPU_OFF, PSCI_0_2_FN_CPU_OFF)
  74 MISMATCH_CHECK(QEMU_PSCI_0_2_FN_CPU_ON, PSCI_0_2_FN_CPU_ON)
  75 MISMATCH_CHECK(QEMU_PSCI_0_2_FN_MIGRATE, PSCI_0_2_FN_MIGRATE)
  76 MISMATCH_CHECK(QEMU_PSCI_0_2_FN64_CPU_SUSPEND, PSCI_0_2_FN64_CPU_SUSPEND)
  77 MISMATCH_CHECK(QEMU_PSCI_0_2_FN64_CPU_ON, PSCI_0_2_FN64_CPU_ON)
  78 MISMATCH_CHECK(QEMU_PSCI_0_2_FN64_MIGRATE, PSCI_0_2_FN64_MIGRATE)
  79
  80 /* Note that KVM uses overlapping values for AArch32 and AArch64
  81  * target CPU numbers. AArch32 targets:
  82  */
  83 #define QEMU_KVM_ARM_TARGET_CORTEX_A15 0
  84 #define QEMU_KVM_ARM_TARGET_CORTEX_A7 1
  85
  86 /* AArch64 targets: */
  87 #define QEMU_KVM_ARM_TARGET_AEM_V8 0
  88 #define QEMU_KVM_ARM_TARGET_FOUNDATION_V8 1
  89 #define QEMU_KVM_ARM_TARGET_CORTEX_A57 2
  90
  91 /* There's no kernel define for this: sentinel value which
  92  * matches no KVM target value for either 64 or 32 bit
  93  */
  94 #define QEMU_KVM_ARM_TARGET_NONE UINT_MAX
  95
  96 #ifdef TARGET_AARCH64
  97 MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_AEM_V8, KVM_ARM_TARGET_AEM_V8)
  98 MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_FOUNDATION_V8, KVM_ARM_TARGET_FOUNDATION_V8)
  99 MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_CORTEX_A57, KVM_ARM_TARGET_CORTEX_A57)
 100 #else
 101 MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_CORTEX_A15, KVM_ARM_TARGET_CORTEX_A15)
 102 MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_CORTEX_A7, KVM_ARM_TARGET_CORTEX_A7)
 103 #endif
 104
 105 #define CP_REG_ARM64                   0x6000000000000000ULL
 106 #define CP_REG_ARM_COPROC_MASK         0x000000000FFF0000
 107 #define CP_REG_ARM_COPROC_SHIFT        16
 108 #define CP_REG_ARM64_SYSREG            (0x0013 << CP_REG_ARM_COPROC_SHIFT)
 109 #define CP_REG_ARM64_SYSREG_OP0_MASK   0x000000000000c000
 110 #define CP_REG_ARM64_SYSREG_OP0_SHIFT  14
 111 #define CP_REG_ARM64_SYSREG_OP1_MASK   0x0000000000003800
 112 #define CP_REG_ARM64_SYSREG_OP1_SHIFT  11
 113 #define CP_REG_ARM64_SYSREG_CRN_MASK   0x0000000000000780
 114 #define CP_REG_ARM64_SYSREG_CRN_SHIFT  7
 115 #define CP_REG_ARM64_SYSREG_CRM_MASK   0x0000000000000078
 116 #define CP_REG_ARM64_SYSREG_CRM_SHIFT  3
 117 #define CP_REG_ARM64_SYSREG_OP2_MASK   0x0000000000000007
 118 #define CP_REG_ARM64_SYSREG_OP2_SHIFT  0
 119
 120 /* No kernel define but it's useful to QEMU */
 121 #define CP_REG_ARM64_SYSREG_CP (CP_REG_ARM64_SYSREG >> CP_REG_ARM_COPROC_SHIFT)
 122
 123 #ifdef TARGET_AARCH64
 124 MISMATCH_CHECK(CP_REG_ARM64, KVM_REG_ARM64)
 125 MISMATCH_CHECK(CP_REG_ARM_COPROC_MASK, KVM_REG_ARM_COPROC_MASK)
 126 MISMATCH_CHECK(CP_REG_ARM_COPROC_SHIFT, KVM_REG_ARM_COPROC_SHIFT)
 127 MISMATCH_CHECK(CP_REG_ARM64_SYSREG, KVM_REG_ARM64_SYSREG)
 128 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP0_MASK, KVM_REG_ARM64_SYSREG_OP0_MASK)
 129 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP0_SHIFT, KVM_REG_ARM64_SYSREG_OP0_SHIFT)
 130 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP1_MASK, KVM_REG_ARM64_SYSREG_OP1_MASK)
 131 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP1_SHIFT, KVM_REG_ARM64_SYSREG_OP1_SHIFT)
 132 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRN_MASK, KVM_REG_ARM64_SYSREG_CRN_MASK)
 133 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRN_SHIFT, KVM_REG_ARM64_SYSREG_CRN_SHIFT)
 134 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRM_MASK, KVM_REG_ARM64_SYSREG_CRM_MASK)
 135 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRM_SHIFT, KVM_REG_ARM64_SYSREG_CRM_SHIFT)
 136 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP2_MASK, KVM_REG_ARM64_SYSREG_OP2_MASK)
 137 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP2_SHIFT, KVM_REG_ARM64_SYSREG_OP2_SHIFT)
 138 #endif
 139
 140 #undef MISMATCH_CHECK
 141
 142 #endif