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
106 /* TLB state for the entry code */
107 OFFSET(TLB_STATE_user_pcid_flush_mask, tlb_state, user_pcid_flush_mask);
108
109 /* Layout info for cpu_entry_area */
110 OFFSET(CPU_ENTRY_AREA_entry_stack, cpu_entry_area, entry_stack_page);
111 DEFINE(SIZEOF_entry_stack, sizeof(struct entry_stack));
112 DEFINE(MASK_entry_stack, (~(sizeof(struct entry_stack) - 1)));
113
114 /* Offset for fields in tss_struct */
115 OFFSET(TSS_sp0, tss_struct, x86_tss.sp0);
116 OFFSET(TSS_sp1, tss_struct, x86_tss.sp1);
117 OFFSET(TSS_sp2, tss_struct, x86_tss.sp2);
118#if IS_ENABLED(CONFIG_CRYPTO_ARIA_AESNI_AVX_X86_64)
119 /* Offset for fields in aria_ctx */
120 BLANK();
121 OFFSET(ARIA_CTX_enc_key, aria_ctx, enc_key);
122 OFFSET(ARIA_CTX_dec_key, aria_ctx, dec_key);
123 OFFSET(ARIA_CTX_rounds, aria_ctx, rounds);
124#endif
125
126}
127

source code of linux/arch/x86/kernel/asm-offsets.c