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
  21 #define MISMATCH_CHECK(X, Y) QEMU_BUILD_BUG_ON(X != Y)
  22
  23 #else
  24 #define MISMATCH_CHECK(X, Y)
  25 #endif
  26
  27 #define CP_REG_SIZE_SHIFT 52
  28 #define CP_REG_SIZE_MASK       0x00f0000000000000ULL
  29 #define CP_REG_SIZE_U32        0x0020000000000000ULL
  30 #define CP_REG_SIZE_U64        0x0030000000000000ULL
  31 #define CP_REG_ARM             0x4000000000000000ULL
  32 #define CP_REG_ARCH_MASK       0xff00000000000000ULL
  33
  34 MISMATCH_CHECK(CP_REG_SIZE_SHIFT, KVM_REG_SIZE_SHIFT)
  35 MISMATCH_CHECK(CP_REG_SIZE_MASK, KVM_REG_SIZE_MASK)
  36 MISMATCH_CHECK(CP_REG_SIZE_U32, KVM_REG_SIZE_U32)
  37 MISMATCH_CHECK(CP_REG_SIZE_U64, KVM_REG_SIZE_U64)
  38 MISMATCH_CHECK(CP_REG_ARM, KVM_REG_ARM)
  39 MISMATCH_CHECK(CP_REG_ARCH_MASK, KVM_REG_ARCH_MASK)
  40
  41 #define PSCI_FN_BASE 0x95c1ba5e
  42 #define PSCI_FN(n) (PSCI_FN_BASE + (n))
  43 #define PSCI_FN_CPU_SUSPEND PSCI_FN(0)
  44 #define PSCI_FN_CPU_OFF PSCI_FN(1)
  45 #define PSCI_FN_CPU_ON PSCI_FN(2)
  46 #define PSCI_FN_MIGRATE PSCI_FN(3)
  47
  48 MISMATCH_CHECK(PSCI_FN_CPU_SUSPEND, KVM_PSCI_FN_CPU_SUSPEND)
  49 MISMATCH_CHECK(PSCI_FN_CPU_OFF, KVM_PSCI_FN_CPU_OFF)
  50 MISMATCH_CHECK(PSCI_FN_CPU_ON, KVM_PSCI_FN_CPU_ON)
  51 MISMATCH_CHECK(PSCI_FN_MIGRATE, KVM_PSCI_FN_MIGRATE)
  52
  53 #define QEMU_KVM_ARM_TARGET_CORTEX_A15 0
  54
  55 /* There's no kernel define for this: sentinel value which
  56  * matches no KVM target value for either 64 or 32 bit
  57  */
  58 #define QEMU_KVM_ARM_TARGET_NONE UINT_MAX
  59
  60 #ifndef TARGET_AARCH64
  61 MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_CORTEX_A15, KVM_ARM_TARGET_CORTEX_A15)
  62 #endif
  63
  64 #define CP_REG_ARM64                   0x6000000000000000ULL
  65 #define CP_REG_ARM_COPROC_MASK         0x000000000FFF0000
  66 #define CP_REG_ARM_COPROC_SHIFT        16
  67 #define CP_REG_ARM64_SYSREG            (0x0013 << CP_REG_ARM_COPROC_SHIFT)
  68 #define CP_REG_ARM64_SYSREG_OP0_MASK   0x000000000000c000
  69 #define CP_REG_ARM64_SYSREG_OP0_SHIFT  14
  70 #define CP_REG_ARM64_SYSREG_OP1_MASK   0x0000000000003800
  71 #define CP_REG_ARM64_SYSREG_OP1_SHIFT  11
  72 #define CP_REG_ARM64_SYSREG_CRN_MASK   0x0000000000000780
  73 #define CP_REG_ARM64_SYSREG_CRN_SHIFT  7
  74 #define CP_REG_ARM64_SYSREG_CRM_MASK   0x0000000000000078
  75 #define CP_REG_ARM64_SYSREG_CRM_SHIFT  3
  76 #define CP_REG_ARM64_SYSREG_OP2_MASK   0x0000000000000007
  77 #define CP_REG_ARM64_SYSREG_OP2_SHIFT  0
  78
  79 /* No kernel define but it's useful to QEMU */
  80 #define CP_REG_ARM64_SYSREG_CP (CP_REG_ARM64_SYSREG >> CP_REG_ARM_COPROC_SHIFT)
  81
  82 #ifdef TARGET_AARCH64
  83 MISMATCH_CHECK(CP_REG_ARM64, KVM_REG_ARM64)
  84 MISMATCH_CHECK(CP_REG_ARM_COPROC_MASK, KVM_REG_ARM_COPROC_MASK)
  85 MISMATCH_CHECK(CP_REG_ARM_COPROC_SHIFT, KVM_REG_ARM_COPROC_SHIFT)
  86 MISMATCH_CHECK(CP_REG_ARM64_SYSREG, KVM_REG_ARM64_SYSREG)
  87 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP0_MASK, KVM_REG_ARM64_SYSREG_OP0_MASK)
  88 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP0_SHIFT, KVM_REG_ARM64_SYSREG_OP0_SHIFT)
  89 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP1_MASK, KVM_REG_ARM64_SYSREG_OP1_MASK)
  90 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP1_SHIFT, KVM_REG_ARM64_SYSREG_OP1_SHIFT)
  91 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRN_MASK, KVM_REG_ARM64_SYSREG_CRN_MASK)
  92 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRN_SHIFT, KVM_REG_ARM64_SYSREG_CRN_SHIFT)
  93 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRM_MASK, KVM_REG_ARM64_SYSREG_CRM_MASK)
  94 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRM_SHIFT, KVM_REG_ARM64_SYSREG_CRM_SHIFT)
  95 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP2_MASK, KVM_REG_ARM64_SYSREG_OP2_MASK)
  96 MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP2_SHIFT, KVM_REG_ARM64_SYSREG_OP2_SHIFT)
  97 #endif
  98
  99 #undef MISMATCH_CHECK
 100
 101 #endif