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 <linux/sched.h>
11 #include <linux/stddef.h>
12 #include <linux/hardirq.h>
13 #include <linux/suspend.h>
14 #include <linux/kbuild.h>
15 #include <asm/processor.h>
16 #include <asm/thread_info.h>
17 #include <asm/sigframe.h>
18 #include <asm/bootparam.h>
19 #include <asm/suspend.h>
20 #include <asm/tlbflush.h>
21 #include <asm/tdx.h>
22
23 #ifdef CONFIG_XEN
24 #include <xen/interface/xen.h>
25 #endif
26
27 #ifdef CONFIG_X86_32
28 # include "asm-offsets_32.c"
29 #else
30 # include "asm-offsets_64.c"
31 #endif
32
common(void)33 static void __used common(void)
34 {
35 BLANK();
36 OFFSET(TASK_threadsp, task_struct, thread.sp);
37 #ifdef CONFIG_STACKPROTECTOR
38 OFFSET(TASK_stack_canary, task_struct, stack_canary);
39 #endif
40
41 BLANK();
42 OFFSET(pbe_address, pbe, address);
43 OFFSET(pbe_orig_address, pbe, orig_address);
44 OFFSET(pbe_next, pbe, next);
45
46 #if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
47 BLANK();
48 OFFSET(IA32_SIGCONTEXT_ax, sigcontext_32, ax);
49 OFFSET(IA32_SIGCONTEXT_bx, sigcontext_32, bx);
50 OFFSET(IA32_SIGCONTEXT_cx, sigcontext_32, cx);
51 OFFSET(IA32_SIGCONTEXT_dx, sigcontext_32, dx);
52 OFFSET(IA32_SIGCONTEXT_si, sigcontext_32, si);
53 OFFSET(IA32_SIGCONTEXT_di, sigcontext_32, di);
54 OFFSET(IA32_SIGCONTEXT_bp, sigcontext_32, bp);
55 OFFSET(IA32_SIGCONTEXT_sp, sigcontext_32, sp);
56 OFFSET(IA32_SIGCONTEXT_ip, sigcontext_32, ip);
57
58 BLANK();
59 OFFSET(IA32_RT_SIGFRAME_sigcontext, rt_sigframe_ia32, uc.uc_mcontext);
60 #endif
61
62 #ifdef CONFIG_XEN
63 BLANK();
64 OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask);
65 OFFSET(XEN_vcpu_info_pending, vcpu_info, evtchn_upcall_pending);
66 OFFSET(XEN_vcpu_info_arch_cr2, vcpu_info, arch.cr2);
67 #endif
68
69 BLANK();
70 OFFSET(TDX_MODULE_rcx, tdx_module_output, rcx);
71 OFFSET(TDX_MODULE_rdx, tdx_module_output, rdx);
72 OFFSET(TDX_MODULE_r8, tdx_module_output, r8);
73 OFFSET(TDX_MODULE_r9, tdx_module_output, r9);
74 OFFSET(TDX_MODULE_r10, tdx_module_output, r10);
75 OFFSET(TDX_MODULE_r11, tdx_module_output, r11);
76
77 BLANK();
78 OFFSET(TDX_HYPERCALL_r10, tdx_hypercall_args, r10);
79 OFFSET(TDX_HYPERCALL_r11, tdx_hypercall_args, r11);
80 OFFSET(TDX_HYPERCALL_r12, tdx_hypercall_args, r12);
81 OFFSET(TDX_HYPERCALL_r13, tdx_hypercall_args, r13);
82 OFFSET(TDX_HYPERCALL_r14, tdx_hypercall_args, r14);
83 OFFSET(TDX_HYPERCALL_r15, tdx_hypercall_args, r15);
84
85 BLANK();
86 OFFSET(BP_scratch, boot_params, scratch);
87 OFFSET(BP_secure_boot, boot_params, secure_boot);
88 OFFSET(BP_loadflags, boot_params, hdr.loadflags);
89 OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch);
90 OFFSET(BP_version, boot_params, hdr.version);
91 OFFSET(BP_kernel_alignment, boot_params, hdr.kernel_alignment);
92 OFFSET(BP_init_size, boot_params, hdr.init_size);
93 OFFSET(BP_pref_address, boot_params, hdr.pref_address);
94
95 BLANK();
96 DEFINE(PTREGS_SIZE, sizeof(struct pt_regs));
97
98 /* TLB state for the entry code */
99 OFFSET(TLB_STATE_user_pcid_flush_mask, tlb_state, user_pcid_flush_mask);
100
101 /* Layout info for cpu_entry_area */
102 OFFSET(CPU_ENTRY_AREA_entry_stack, cpu_entry_area, entry_stack_page);
103 DEFINE(SIZEOF_entry_stack, sizeof(struct entry_stack));
104 DEFINE(MASK_entry_stack, (~(sizeof(struct entry_stack) - 1)));
105
106 /* Offset for fields in tss_struct */
107 OFFSET(TSS_sp0, tss_struct, x86_tss.sp0);
108 OFFSET(TSS_sp1, tss_struct, x86_tss.sp1);
109 OFFSET(TSS_sp2, tss_struct, x86_tss.sp2);
110 }
111