arch/arm64/kernel/asm-offsets.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Based on arch/arm/kernel/asm-offsets.c
   4  *
   5  * Copyright (C) 1995-2003 Russell King
   6  *               2001-2002 Keith Owens
   7  * Copyright (C) 2012 ARM Ltd.
   8  */
   9
  10 #include <linux/arm_sdei.h>
  11 #include <linux/sched.h>
  12 #include <linux/mm.h>
  13 #include <linux/dma-mapping.h>
  14 #include <linux/kvm_host.h>
  15 #include <linux/preempt.h>
  16 #include <linux/suspend.h>
  17 #include <asm/cpufeature.h>
  18 #include <asm/fixmap.h>
  19 #include <asm/thread_info.h>
  20 #include <asm/memory.h>
  21 #include <asm/signal32.h>
  22 #include <asm/smp_plat.h>
  23 #include <asm/suspend.h>
  24 #include <linux/kbuild.h>
  25 #include <linux/arm-smccc.h>
  26
  27 int main(void)
  28 {
  29   DEFINE(TSK_ACTIVE_MM,         offsetof(struct task_struct, active_mm));
  30   BLANK();
  31   DEFINE(TSK_TI_FLAGS,          offsetof(struct task_struct, thread_info.flags));
  32   DEFINE(TSK_TI_PREEMPT,        offsetof(struct task_struct, thread_info.preempt_count));
  33 #ifdef CONFIG_ARM64_SW_TTBR0_PAN
  34   DEFINE(TSK_TI_TTBR0,          offsetof(struct task_struct, thread_info.ttbr0));
  35 #endif
  36 #ifdef CONFIG_SHADOW_CALL_STACK
  37   DEFINE(TSK_TI_SCS_BASE,       offsetof(struct task_struct, thread_info.scs_base));
  38   DEFINE(TSK_TI_SCS_SP,         offsetof(struct task_struct, thread_info.scs_sp));
  39 #endif
  40   DEFINE(TSK_STACK,             offsetof(struct task_struct, stack));
  41 #ifdef CONFIG_STACKPROTECTOR
  42   DEFINE(TSK_STACK_CANARY,      offsetof(struct task_struct, stack_canary));
  43 #endif
  44   BLANK();
  45   DEFINE(THREAD_CPU_CONTEXT,    offsetof(struct task_struct, thread.cpu_context));
  46 #ifdef CONFIG_ARM64_PTR_AUTH
  47   DEFINE(THREAD_KEYS_USER,      offsetof(struct task_struct, thread.keys_user));
  48   DEFINE(THREAD_KEYS_KERNEL,    offsetof(struct task_struct, thread.keys_kernel));
  49 #endif
  50 #ifdef CONFIG_ARM64_MTE
  51   DEFINE(THREAD_GCR_EL1_USER,   offsetof(struct task_struct, thread.gcr_user_excl));
  52 #endif
  53   BLANK();
  54   DEFINE(S_X0,                  offsetof(struct pt_regs, regs[0]));
  55   DEFINE(S_X2,                  offsetof(struct pt_regs, regs[2]));
  56   DEFINE(S_X4,                  offsetof(struct pt_regs, regs[4]));
  57   DEFINE(S_X6,                  offsetof(struct pt_regs, regs[6]));
  58   DEFINE(S_X8,                  offsetof(struct pt_regs, regs[8]));
  59   DEFINE(S_X10,                 offsetof(struct pt_regs, regs[10]));
  60   DEFINE(S_X12,                 offsetof(struct pt_regs, regs[12]));
  61   DEFINE(S_X14,                 offsetof(struct pt_regs, regs[14]));
  62   DEFINE(S_X16,                 offsetof(struct pt_regs, regs[16]));
  63   DEFINE(S_X18,                 offsetof(struct pt_regs, regs[18]));
  64   DEFINE(S_X20,                 offsetof(struct pt_regs, regs[20]));
  65   DEFINE(S_X22,                 offsetof(struct pt_regs, regs[22]));
  66   DEFINE(S_X24,                 offsetof(struct pt_regs, regs[24]));
  67   DEFINE(S_X26,                 offsetof(struct pt_regs, regs[26]));
  68   DEFINE(S_X28,                 offsetof(struct pt_regs, regs[28]));
  69   DEFINE(S_FP,                  offsetof(struct pt_regs, regs[29]));
  70   DEFINE(S_LR,                  offsetof(struct pt_regs, regs[30]));
  71   DEFINE(S_SP,                  offsetof(struct pt_regs, sp));
  72   DEFINE(S_PSTATE,              offsetof(struct pt_regs, pstate));
  73   DEFINE(S_PC,                  offsetof(struct pt_regs, pc));
  74   DEFINE(S_SYSCALLNO,           offsetof(struct pt_regs, syscallno));
  75   DEFINE(S_SDEI_TTBR1,          offsetof(struct pt_regs, sdei_ttbr1));
  76   DEFINE(S_PMR_SAVE,            offsetof(struct pt_regs, pmr_save));
  77   DEFINE(S_STACKFRAME,          offsetof(struct pt_regs, stackframe));
  78   DEFINE(S_FRAME_SIZE,          sizeof(struct pt_regs));
  79   BLANK();
  80 #ifdef CONFIG_COMPAT
  81   DEFINE(COMPAT_SIGFRAME_REGS_OFFSET,           offsetof(struct compat_sigframe, uc.uc_mcontext.arm_r0));
  82   DEFINE(COMPAT_RT_SIGFRAME_REGS_OFFSET,        offsetof(struct compat_rt_sigframe, sig.uc.uc_mcontext.arm_r0));
  83   BLANK();
  84 #endif
  85   DEFINE(MM_CONTEXT_ID,         offsetof(struct mm_struct, context.id.counter));
  86   BLANK();
  87   DEFINE(VMA_VM_MM,             offsetof(struct vm_area_struct, vm_mm));
  88   DEFINE(VMA_VM_FLAGS,          offsetof(struct vm_area_struct, vm_flags));
  89   BLANK();
  90   DEFINE(VM_EXEC,               VM_EXEC);
  91   BLANK();
  92   DEFINE(PAGE_SZ,               PAGE_SIZE);
  93   BLANK();
  94   DEFINE(DMA_TO_DEVICE,         DMA_TO_DEVICE);
  95   DEFINE(DMA_FROM_DEVICE,       DMA_FROM_DEVICE);
  96   BLANK();
  97   DEFINE(PREEMPT_DISABLE_OFFSET, PREEMPT_DISABLE_OFFSET);
  98   BLANK();
  99   DEFINE(CPU_BOOT_STACK,        offsetof(struct secondary_data, stack));
 100   DEFINE(CPU_BOOT_TASK,         offsetof(struct secondary_data, task));
 101   BLANK();
 102 #ifdef CONFIG_KVM
 103   DEFINE(VCPU_CONTEXT,          offsetof(struct kvm_vcpu, arch.ctxt));
 104   DEFINE(VCPU_FAULT_DISR,       offsetof(struct kvm_vcpu, arch.fault.disr_el1));
 105   DEFINE(VCPU_WORKAROUND_FLAGS, offsetof(struct kvm_vcpu, arch.workaround_flags));
 106   DEFINE(VCPU_HCR_EL2,          offsetof(struct kvm_vcpu, arch.hcr_el2));
 107   DEFINE(CPU_USER_PT_REGS,      offsetof(struct kvm_cpu_context, regs));
 108   DEFINE(CPU_APIAKEYLO_EL1,     offsetof(struct kvm_cpu_context, sys_regs[APIAKEYLO_EL1]));
 109   DEFINE(CPU_APIBKEYLO_EL1,     offsetof(struct kvm_cpu_context, sys_regs[APIBKEYLO_EL1]));
 110   DEFINE(CPU_APDAKEYLO_EL1,     offsetof(struct kvm_cpu_context, sys_regs[APDAKEYLO_EL1]));
 111   DEFINE(CPU_APDBKEYLO_EL1,     offsetof(struct kvm_cpu_context, sys_regs[APDBKEYLO_EL1]));
 112   DEFINE(CPU_APGAKEYLO_EL1,     offsetof(struct kvm_cpu_context, sys_regs[APGAKEYLO_EL1]));
 113   DEFINE(HOST_CONTEXT_VCPU,     offsetof(struct kvm_cpu_context, __hyp_running_vcpu));
 114   DEFINE(HOST_DATA_CONTEXT,     offsetof(struct kvm_host_data, host_ctxt));
 115   DEFINE(NVHE_INIT_MAIR_EL2,    offsetof(struct kvm_nvhe_init_params, mair_el2));
 116   DEFINE(NVHE_INIT_TCR_EL2,     offsetof(struct kvm_nvhe_init_params, tcr_el2));
 117   DEFINE(NVHE_INIT_TPIDR_EL2,   offsetof(struct kvm_nvhe_init_params, tpidr_el2));
 118   DEFINE(NVHE_INIT_STACK_HYP_VA,        offsetof(struct kvm_nvhe_init_params, stack_hyp_va));
 119   DEFINE(NVHE_INIT_PGD_PA,      offsetof(struct kvm_nvhe_init_params, pgd_pa));
 120 #endif
 121 #ifdef CONFIG_CPU_PM
 122   DEFINE(CPU_CTX_SP,            offsetof(struct cpu_suspend_ctx, sp));
 123   DEFINE(MPIDR_HASH_MASK,       offsetof(struct mpidr_hash, mask));
 124   DEFINE(MPIDR_HASH_SHIFTS,     offsetof(struct mpidr_hash, shift_aff));
 125   DEFINE(SLEEP_STACK_DATA_SYSTEM_REGS,  offsetof(struct sleep_stack_data, system_regs));
 126   DEFINE(SLEEP_STACK_DATA_CALLEE_REGS,  offsetof(struct sleep_stack_data, callee_saved_regs));
 127 #endif
 128   DEFINE(ARM_SMCCC_RES_X0_OFFS,         offsetof(struct arm_smccc_res, a0));
 129   DEFINE(ARM_SMCCC_RES_X2_OFFS,         offsetof(struct arm_smccc_res, a2));
 130   DEFINE(ARM_SMCCC_QUIRK_ID_OFFS,       offsetof(struct arm_smccc_quirk, id));
 131   DEFINE(ARM_SMCCC_QUIRK_STATE_OFFS,    offsetof(struct arm_smccc_quirk, state));
 132   BLANK();
 133   DEFINE(HIBERN_PBE_ORIG,       offsetof(struct pbe, orig_address));
 134   DEFINE(HIBERN_PBE_ADDR,       offsetof(struct pbe, address));
 135   DEFINE(HIBERN_PBE_NEXT,       offsetof(struct pbe, next));
 136   DEFINE(ARM64_FTR_SYSVAL,      offsetof(struct arm64_ftr_reg, sys_val));
 137   BLANK();
 138 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 139   DEFINE(TRAMP_VALIAS,          TRAMP_VALIAS);
 140 #endif
 141 #ifdef CONFIG_ARM_SDE_INTERFACE
 142   DEFINE(SDEI_EVENT_INTREGS,    offsetof(struct sdei_registered_event, interrupted_regs));
 143   DEFINE(SDEI_EVENT_PRIORITY,   offsetof(struct sdei_registered_event, priority));
 144 #endif
 145 #ifdef CONFIG_ARM64_PTR_AUTH
 146   DEFINE(PTRAUTH_USER_KEY_APIA,         offsetof(struct ptrauth_keys_user, apia));
 147   DEFINE(PTRAUTH_USER_KEY_APIB,         offsetof(struct ptrauth_keys_user, apib));
 148   DEFINE(PTRAUTH_USER_KEY_APDA,         offsetof(struct ptrauth_keys_user, apda));
 149   DEFINE(PTRAUTH_USER_KEY_APDB,         offsetof(struct ptrauth_keys_user, apdb));
 150   DEFINE(PTRAUTH_USER_KEY_APGA,         offsetof(struct ptrauth_keys_user, apga));
 151   DEFINE(PTRAUTH_KERNEL_KEY_APIA,       offsetof(struct ptrauth_keys_kernel, apia));
 152   BLANK();
 153 #endif
 154   return 0;
 155 }