asm-offsets.c

  1// SPDX-License-Identifier: GPL-2.0
  2/*
  3 * Generate definitions needed by assembly language modules.
  4 * This code generates raw asm output which is post-processed to extract
  5 * and format the required data.
  6 */
  7#define COMPILE_OFFSETS
  8
  9#include <linux/crypto.h>
 10#include <crypto/aria.h>
 11#include <linux/sched.h>
 12#include <linux/stddef.h>
 13#include <linux/hardirq.h>
 14#include <linux/suspend.h>
 15#include <linux/kbuild.h>
 16#include <asm/processor.h>
 17#include <asm/thread_info.h>
 18#include <asm/sigframe.h>
 19#include <asm/bootparam.h>
 20#include <asm/suspend.h>
 21#include <asm/tlbflush.h>
 22#include <asm/tdx.h>
 23
 24#ifdef CONFIG_XEN
 25#include <xen/interface/xen.h>
 26#endif
 27
 28#ifdef CONFIG_X86_32
 29# include "asm-offsets_32.c"
 30#else
 31# include "asm-offsets_64.c"
 32#endif
 33
 34static void __used common(void)
 35{
 36	OFFSET(CPUINFO_x86, cpuinfo_x86, x86);
 37	OFFSET(CPUINFO_x86_vendor, cpuinfo_x86, x86_vendor);
 38	OFFSET(CPUINFO_x86_model, cpuinfo_x86, x86_model);
 39	OFFSET(CPUINFO_x86_stepping, cpuinfo_x86, x86_stepping);
 40	OFFSET(CPUINFO_cpuid_level, cpuinfo_x86, cpuid_level);
 41	OFFSET(CPUINFO_x86_capability, cpuinfo_x86, x86_capability);
 42	OFFSET(CPUINFO_x86_vendor_id, cpuinfo_x86, x86_vendor_id);
 43
 44	BLANK();
 45	OFFSET(TASK_threadsp, task_struct, thread.sp);
 46#ifdef CONFIG_STACKPROTECTOR
 47	OFFSET(TASK_stack_canary, task_struct, stack_canary);
 48#endif
 49
 50	BLANK();
 51	OFFSET(pbe_address, pbe, address);
 52	OFFSET(pbe_orig_address, pbe, orig_address);
 53	OFFSET(pbe_next, pbe, next);
 54
 55#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
 56	BLANK();
 57	OFFSET(IA32_SIGCONTEXT_ax, sigcontext_32, ax);
 58	OFFSET(IA32_SIGCONTEXT_bx, sigcontext_32, bx);
 59	OFFSET(IA32_SIGCONTEXT_cx, sigcontext_32, cx);
 60	OFFSET(IA32_SIGCONTEXT_dx, sigcontext_32, dx);
 61	OFFSET(IA32_SIGCONTEXT_si, sigcontext_32, si);
 62	OFFSET(IA32_SIGCONTEXT_di, sigcontext_32, di);
 63	OFFSET(IA32_SIGCONTEXT_bp, sigcontext_32, bp);
 64	OFFSET(IA32_SIGCONTEXT_sp, sigcontext_32, sp);
 65	OFFSET(IA32_SIGCONTEXT_ip, sigcontext_32, ip);
 66
 67	BLANK();
 68	OFFSET(IA32_RT_SIGFRAME_sigcontext, rt_sigframe_ia32, uc.uc_mcontext);
 69#endif
 70
 71#ifdef CONFIG_XEN
 72	BLANK();
 73	OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask);
 74	OFFSET(XEN_vcpu_info_pending, vcpu_info, evtchn_upcall_pending);
 75	OFFSET(XEN_vcpu_info_arch_cr2, vcpu_info, arch.cr2);
 76#endif
 77
 78	BLANK();
 79	OFFSET(TDX_MODULE_rcx, tdx_module_args, rcx);
 80	OFFSET(TDX_MODULE_rdx, tdx_module_args, rdx);
 81	OFFSET(TDX_MODULE_r8,  tdx_module_args, r8);
 82	OFFSET(TDX_MODULE_r9,  tdx_module_args, r9);
 83	OFFSET(TDX_MODULE_r10, tdx_module_args, r10);
 84	OFFSET(TDX_MODULE_r11, tdx_module_args, r11);
 85	OFFSET(TDX_MODULE_r12, tdx_module_args, r12);
 86	OFFSET(TDX_MODULE_r13, tdx_module_args, r13);
 87	OFFSET(TDX_MODULE_r14, tdx_module_args, r14);
 88	OFFSET(TDX_MODULE_r15, tdx_module_args, r15);
 89	OFFSET(TDX_MODULE_rbx, tdx_module_args, rbx);
 90	OFFSET(TDX_MODULE_rdi, tdx_module_args, rdi);
 91	OFFSET(TDX_MODULE_rsi, tdx_module_args, rsi);
 92
 93	BLANK();
 94	OFFSET(BP_scratch, boot_params, scratch);
 95	OFFSET(BP_secure_boot, boot_params, secure_boot);
 96	OFFSET(BP_loadflags, boot_params, hdr.loadflags);
 97	OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch);
 98	OFFSET(BP_version, boot_params, hdr.version);
 99	OFFSET(BP_kernel_alignment, boot_params, hdr.kernel_alignment);
100	OFFSET(BP_init_size, boot_params, hdr.init_size);
101	OFFSET(BP_pref_address, boot_params, hdr.pref_address);
102
103	BLANK();
104	DEFINE(PTREGS_SIZE, sizeof(struct pt_regs));
105	OFFSET(C_PTREGS_SIZE, pt_regs, orig_ax);
106
107	/* TLB state for the entry code */
108	OFFSET(TLB_STATE_user_pcid_flush_mask, tlb_state, user_pcid_flush_mask);
109
110	/* Layout info for cpu_entry_area */
111	OFFSET(CPU_ENTRY_AREA_entry_stack, cpu_entry_area, entry_stack_page);
112	DEFINE(SIZEOF_entry_stack, sizeof(struct entry_stack));
113	DEFINE(MASK_entry_stack, (~(sizeof(struct entry_stack) - 1)));
114
115	/* Offset for fields in tss_struct */
116	OFFSET(TSS_sp0, tss_struct, x86_tss.sp0);
117	OFFSET(TSS_sp1, tss_struct, x86_tss.sp1);
118	OFFSET(TSS_sp2, tss_struct, x86_tss.sp2);
119#if IS_ENABLED(CONFIG_CRYPTO_ARIA_AESNI_AVX_X86_64)
120	/* Offset for fields in aria_ctx */
121	BLANK();
122	OFFSET(ARIA_CTX_enc_key, aria_ctx, enc_key);
123	OFFSET(ARIA_CTX_dec_key, aria_ctx, dec_key);
124	OFFSET(ARIA_CTX_rounds, aria_ctx, rounds);
125#endif
126
127	BLANK();
128	DEFINE(ALT_INSTR_SIZE,	sizeof(struct alt_instr));
129	DEFINE(EXTABLE_SIZE,	sizeof(struct exception_table_entry));
130}