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   DEFINE(TSK_TI_ADDR_LIMIT,     offsetof(struct task_struct, thread_info.addr_limit));
  34 #ifdef CONFIG_ARM64_SW_TTBR0_PAN
  35   DEFINE(TSK_TI_TTBR0,          offsetof(struct task_struct, thread_info.ttbr0));
  36 #endif
  37   DEFINE(TSK_STACK,             offsetof(struct task_struct, stack));
  38 #ifdef CONFIG_STACKPROTECTOR
  39   DEFINE(TSK_STACK_CANARY,      offsetof(struct task_struct, stack_canary));
  40 #endif
  41   BLANK();
  42   DEFINE(THREAD_CPU_CONTEXT,    offsetof(struct task_struct, thread.cpu_context));
  43   BLANK();
  44   DEFINE(S_X0,                  offsetof(struct pt_regs, regs[0]));
  45   DEFINE(S_X2,                  offsetof(struct pt_regs, regs[2]));
  46   DEFINE(S_X4,                  offsetof(struct pt_regs, regs[4]));
  47   DEFINE(S_X6,                  offsetof(struct pt_regs, regs[6]));
  48   DEFINE(S_X8,                  offsetof(struct pt_regs, regs[8]));
  49   DEFINE(S_X10,                 offsetof(struct pt_regs, regs[10]));
  50   DEFINE(S_X12,                 offsetof(struct pt_regs, regs[12]));
  51   DEFINE(S_X14,                 offsetof(struct pt_regs, regs[14]));
  52   DEFINE(S_X16,                 offsetof(struct pt_regs, regs[16]));
  53   DEFINE(S_X18,                 offsetof(struct pt_regs, regs[18]));
  54   DEFINE(S_X20,                 offsetof(struct pt_regs, regs[20]));
  55   DEFINE(S_X22,                 offsetof(struct pt_regs, regs[22]));
  56   DEFINE(S_X24,                 offsetof(struct pt_regs, regs[24]));
  57   DEFINE(S_X26,                 offsetof(struct pt_regs, regs[26]));
  58   DEFINE(S_X28,                 offsetof(struct pt_regs, regs[28]));
  59   DEFINE(S_FP,                  offsetof(struct pt_regs, regs[29]));
  60   DEFINE(S_LR,                  offsetof(struct pt_regs, regs[30]));
  61   DEFINE(S_SP,                  offsetof(struct pt_regs, sp));
  62   DEFINE(S_PSTATE,              offsetof(struct pt_regs, pstate));
  63   DEFINE(S_PC,                  offsetof(struct pt_regs, pc));
  64   DEFINE(S_SYSCALLNO,           offsetof(struct pt_regs, syscallno));
  65   DEFINE(S_ORIG_ADDR_LIMIT,     offsetof(struct pt_regs, orig_addr_limit));
  66   DEFINE(S_PMR_SAVE,            offsetof(struct pt_regs, pmr_save));
  67   DEFINE(S_STACKFRAME,          offsetof(struct pt_regs, stackframe));
  68   DEFINE(S_FRAME_SIZE,          sizeof(struct pt_regs));
  69   BLANK();
  70 #ifdef CONFIG_COMPAT
  71   DEFINE(COMPAT_SIGFRAME_REGS_OFFSET,           offsetof(struct compat_sigframe, uc.uc_mcontext.arm_r0));
  72   DEFINE(COMPAT_RT_SIGFRAME_REGS_OFFSET,        offsetof(struct compat_rt_sigframe, sig.uc.uc_mcontext.arm_r0));
  73   BLANK();
  74 #endif
  75   DEFINE(MM_CONTEXT_ID,         offsetof(struct mm_struct, context.id.counter));
  76   BLANK();
  77   DEFINE(VMA_VM_MM,             offsetof(struct vm_area_struct, vm_mm));
  78   DEFINE(VMA_VM_FLAGS,          offsetof(struct vm_area_struct, vm_flags));
  79   BLANK();
  80   DEFINE(VM_EXEC,               VM_EXEC);
  81   BLANK();
  82   DEFINE(PAGE_SZ,               PAGE_SIZE);
  83   BLANK();
  84   DEFINE(DMA_TO_DEVICE,         DMA_TO_DEVICE);
  85   DEFINE(DMA_FROM_DEVICE,       DMA_FROM_DEVICE);
  86   BLANK();
  87   DEFINE(PREEMPT_DISABLE_OFFSET, PREEMPT_DISABLE_OFFSET);
  88   BLANK();
  89   DEFINE(CPU_BOOT_STACK,        offsetof(struct secondary_data, stack));
  90   DEFINE(CPU_BOOT_TASK,         offsetof(struct secondary_data, task));
  91   BLANK();
  92 #ifdef CONFIG_KVM_ARM_HOST
  93   DEFINE(VCPU_CONTEXT,          offsetof(struct kvm_vcpu, arch.ctxt));
  94   DEFINE(VCPU_FAULT_DISR,       offsetof(struct kvm_vcpu, arch.fault.disr_el1));
  95   DEFINE(VCPU_WORKAROUND_FLAGS, offsetof(struct kvm_vcpu, arch.workaround_flags));
  96   DEFINE(VCPU_HCR_EL2,          offsetof(struct kvm_vcpu, arch.hcr_el2));
  97   DEFINE(CPU_GP_REGS,           offsetof(struct kvm_cpu_context, gp_regs));
  98   DEFINE(CPU_APIAKEYLO_EL1,     offsetof(struct kvm_cpu_context, sys_regs[APIAKEYLO_EL1]));
  99   DEFINE(CPU_APIBKEYLO_EL1,     offsetof(struct kvm_cpu_context, sys_regs[APIBKEYLO_EL1]));
 100   DEFINE(CPU_APDAKEYLO_EL1,     offsetof(struct kvm_cpu_context, sys_regs[APDAKEYLO_EL1]));
 101   DEFINE(CPU_APDBKEYLO_EL1,     offsetof(struct kvm_cpu_context, sys_regs[APDBKEYLO_EL1]));
 102   DEFINE(CPU_APGAKEYLO_EL1,     offsetof(struct kvm_cpu_context, sys_regs[APGAKEYLO_EL1]));
 103   DEFINE(CPU_USER_PT_REGS,      offsetof(struct kvm_regs, regs));
 104   DEFINE(HOST_CONTEXT_VCPU,     offsetof(struct kvm_cpu_context, __hyp_running_vcpu));
 105   DEFINE(HOST_DATA_CONTEXT,     offsetof(struct kvm_host_data, host_ctxt));
 106 #endif
 107 #ifdef CONFIG_CPU_PM
 108   DEFINE(CPU_CTX_SP,            offsetof(struct cpu_suspend_ctx, sp));
 109   DEFINE(MPIDR_HASH_MASK,       offsetof(struct mpidr_hash, mask));
 110   DEFINE(MPIDR_HASH_SHIFTS,     offsetof(struct mpidr_hash, shift_aff));
 111   DEFINE(SLEEP_STACK_DATA_SYSTEM_REGS,  offsetof(struct sleep_stack_data, system_regs));
 112   DEFINE(SLEEP_STACK_DATA_CALLEE_REGS,  offsetof(struct sleep_stack_data, callee_saved_regs));
 113 #endif
 114   DEFINE(ARM_SMCCC_RES_X0_OFFS,         offsetof(struct arm_smccc_res, a0));
 115   DEFINE(ARM_SMCCC_RES_X2_OFFS,         offsetof(struct arm_smccc_res, a2));
 116   DEFINE(ARM_SMCCC_QUIRK_ID_OFFS,       offsetof(struct arm_smccc_quirk, id));
 117   DEFINE(ARM_SMCCC_QUIRK_STATE_OFFS,    offsetof(struct arm_smccc_quirk, state));
 118   BLANK();
 119   DEFINE(HIBERN_PBE_ORIG,       offsetof(struct pbe, orig_address));
 120   DEFINE(HIBERN_PBE_ADDR,       offsetof(struct pbe, address));
 121   DEFINE(HIBERN_PBE_NEXT,       offsetof(struct pbe, next));
 122   DEFINE(ARM64_FTR_SYSVAL,      offsetof(struct arm64_ftr_reg, sys_val));
 123   BLANK();
 124 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 125   DEFINE(TRAMP_VALIAS,          TRAMP_VALIAS);
 126 #endif
 127 #ifdef CONFIG_ARM_SDE_INTERFACE
 128   DEFINE(SDEI_EVENT_INTREGS,    offsetof(struct sdei_registered_event, interrupted_regs));
 129   DEFINE(SDEI_EVENT_PRIORITY,   offsetof(struct sdei_registered_event, priority));
 130 #endif
 131   return 0;
 132 }