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 #include "../kvm/vmx/vmx.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 34 static void __used common(void) 35 { 36 BLANK(); 37 OFFSET(TASK_threadsp, task_struct, thread.sp); 38 #ifdef CONFIG_STACKPROTECTOR 39 OFFSET(TASK_stack_canary, task_struct, stack_canary); 40 #endif 41 42 BLANK(); 43 OFFSET(pbe_address, pbe, address); 44 OFFSET(pbe_orig_address, pbe, orig_address); 45 OFFSET(pbe_next, pbe, next); 46 47 #if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) 48 BLANK(); 49 OFFSET(IA32_SIGCONTEXT_ax, sigcontext_32, ax); 50 OFFSET(IA32_SIGCONTEXT_bx, sigcontext_32, bx); 51 OFFSET(IA32_SIGCONTEXT_cx, sigcontext_32, cx); 52 OFFSET(IA32_SIGCONTEXT_dx, sigcontext_32, dx); 53 OFFSET(IA32_SIGCONTEXT_si, sigcontext_32, si); 54 OFFSET(IA32_SIGCONTEXT_di, sigcontext_32, di); 55 OFFSET(IA32_SIGCONTEXT_bp, sigcontext_32, bp); 56 OFFSET(IA32_SIGCONTEXT_sp, sigcontext_32, sp); 57 OFFSET(IA32_SIGCONTEXT_ip, sigcontext_32, ip); 58 59 BLANK(); 60 OFFSET(IA32_RT_SIGFRAME_sigcontext, rt_sigframe_ia32, uc.uc_mcontext); 61 #endif 62 63 #ifdef CONFIG_XEN 64 BLANK(); 65 OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask); 66 OFFSET(XEN_vcpu_info_pending, vcpu_info, evtchn_upcall_pending); 67 OFFSET(XEN_vcpu_info_arch_cr2, vcpu_info, arch.cr2); 68 #endif 69 70 BLANK(); 71 OFFSET(TDX_MODULE_rcx, tdx_module_output, rcx); 72 OFFSET(TDX_MODULE_rdx, tdx_module_output, rdx); 73 OFFSET(TDX_MODULE_r8, tdx_module_output, r8); 74 OFFSET(TDX_MODULE_r9, tdx_module_output, r9); 75 OFFSET(TDX_MODULE_r10, tdx_module_output, r10); 76 OFFSET(TDX_MODULE_r11, tdx_module_output, r11); 77 78 BLANK(); 79 OFFSET(TDX_HYPERCALL_r10, tdx_hypercall_args, r10); 80 OFFSET(TDX_HYPERCALL_r11, tdx_hypercall_args, r11); 81 OFFSET(TDX_HYPERCALL_r12, tdx_hypercall_args, r12); 82 OFFSET(TDX_HYPERCALL_r13, tdx_hypercall_args, r13); 83 OFFSET(TDX_HYPERCALL_r14, tdx_hypercall_args, r14); 84 OFFSET(TDX_HYPERCALL_r15, tdx_hypercall_args, r15); 85 86 BLANK(); 87 OFFSET(BP_scratch, boot_params, scratch); 88 OFFSET(BP_secure_boot, boot_params, secure_boot); 89 OFFSET(BP_loadflags, boot_params, hdr.loadflags); 90 OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch); 91 OFFSET(BP_version, boot_params, hdr.version); 92 OFFSET(BP_kernel_alignment, boot_params, hdr.kernel_alignment); 93 OFFSET(BP_init_size, boot_params, hdr.init_size); 94 OFFSET(BP_pref_address, boot_params, hdr.pref_address); 95 96 BLANK(); 97 DEFINE(PTREGS_SIZE, sizeof(struct pt_regs)); 98 99 /* TLB state for the entry code */ 100 OFFSET(TLB_STATE_user_pcid_flush_mask, tlb_state, user_pcid_flush_mask); 101 102 /* Layout info for cpu_entry_area */ 103 OFFSET(CPU_ENTRY_AREA_entry_stack, cpu_entry_area, entry_stack_page); 104 DEFINE(SIZEOF_entry_stack, sizeof(struct entry_stack)); 105 DEFINE(MASK_entry_stack, (~(sizeof(struct entry_stack) - 1))); 106 107 /* Offset for fields in tss_struct */ 108 OFFSET(TSS_sp0, tss_struct, x86_tss.sp0); 109 OFFSET(TSS_sp1, tss_struct, x86_tss.sp1); 110 OFFSET(TSS_sp2, tss_struct, x86_tss.sp2); 111 112 if (IS_ENABLED(CONFIG_KVM_INTEL)) { 113 BLANK(); 114 OFFSET(VMX_spec_ctrl, vcpu_vmx, spec_ctrl); 115 } 116 } 117