1 // SPDX-License-Identifier: GPL-2.0
2 #ifndef __LINUX_KBUILD_H
3 # error "Please do not build this file directly, build asm-offsets.c instead"
4 #endif
5 
6 #include <linux/efi.h>
7 
8 #include <asm/ucontext.h>
9 
10 /* workaround for a warning with -Wmissing-prototypes */
11 void foo(void);
12 
foo(void)13 void foo(void)
14 {
15 	OFFSET(CPUINFO_x86, cpuinfo_x86, x86);
16 	OFFSET(CPUINFO_x86_vendor, cpuinfo_x86, x86_vendor);
17 	OFFSET(CPUINFO_x86_model, cpuinfo_x86, x86_model);
18 	OFFSET(CPUINFO_x86_stepping, cpuinfo_x86, x86_stepping);
19 	OFFSET(CPUINFO_cpuid_level, cpuinfo_x86, cpuid_level);
20 	OFFSET(CPUINFO_x86_capability, cpuinfo_x86, x86_capability);
21 	OFFSET(CPUINFO_x86_vendor_id, cpuinfo_x86, x86_vendor_id);
22 	BLANK();
23 
24 	OFFSET(PT_EBX, pt_regs, bx);
25 	OFFSET(PT_ECX, pt_regs, cx);
26 	OFFSET(PT_EDX, pt_regs, dx);
27 	OFFSET(PT_ESI, pt_regs, si);
28 	OFFSET(PT_EDI, pt_regs, di);
29 	OFFSET(PT_EBP, pt_regs, bp);
30 	OFFSET(PT_EAX, pt_regs, ax);
31 	OFFSET(PT_DS,  pt_regs, ds);
32 	OFFSET(PT_ES,  pt_regs, es);
33 	OFFSET(PT_FS,  pt_regs, fs);
34 	OFFSET(PT_GS,  pt_regs, gs);
35 	OFFSET(PT_ORIG_EAX, pt_regs, orig_ax);
36 	OFFSET(PT_EIP, pt_regs, ip);
37 	OFFSET(PT_CS,  pt_regs, cs);
38 	OFFSET(PT_EFLAGS, pt_regs, flags);
39 	OFFSET(PT_OLDESP, pt_regs, sp);
40 	OFFSET(PT_OLDSS,  pt_regs, ss);
41 	BLANK();
42 
43 	OFFSET(saved_context_gdt_desc, saved_context, gdt_desc);
44 	BLANK();
45 
46 	/*
47 	 * Offset from the entry stack to task stack stored in TSS. Kernel entry
48 	 * happens on the per-cpu entry-stack, and the asm code switches to the
49 	 * task-stack pointer stored in x86_tss.sp1, which is a copy of
50 	 * task->thread.sp0 where entry code can find it.
51 	 */
52 	DEFINE(TSS_entry2task_stack,
53 	       offsetof(struct cpu_entry_area, tss.x86_tss.sp1) -
54 	       offsetofend(struct cpu_entry_area, entry_stack_page.stack));
55 
56 	BLANK();
57 	DEFINE(EFI_svam, offsetof(efi_runtime_services_t, set_virtual_address_map));
58 }
59