1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Linker script variables to be set after section resolution, as 4 * ld.lld does not like variables assigned before SECTIONS is processed. 5 */ 6 #ifndef __ARM64_KERNEL_IMAGE_VARS_H 7 #define __ARM64_KERNEL_IMAGE_VARS_H 8 9 #ifndef LINKER_SCRIPT 10 #error This file should only be included in vmlinux.lds.S 11 #endif 12 13 PROVIDE(__efistub_primary_entry = primary_entry); 14 15 /* 16 * The EFI stub has its own symbol namespace prefixed by __efistub_, to 17 * isolate it from the kernel proper. The following symbols are legally 18 * accessed by the stub, so provide some aliases to make them accessible. 19 * Only include data symbols here, or text symbols of functions that are 20 * guaranteed to be safe when executed at another offset than they were 21 * linked at. The routines below are all implemented in assembler in a 22 * position independent manner 23 */ 24 PROVIDE(__efistub_caches_clean_inval_pou = __pi_caches_clean_inval_pou); 25 26 PROVIDE(__efistub__text = _text); 27 PROVIDE(__efistub__end = _end); 28 PROVIDE(__efistub___inittext_end = __inittext_end); 29 PROVIDE(__efistub__edata = _edata); 30 PROVIDE(__efistub_screen_info = screen_info); 31 PROVIDE(__efistub__ctype = _ctype); 32 33 PROVIDE(__pi___memcpy = __pi_memcpy); 34 PROVIDE(__pi___memmove = __pi_memmove); 35 PROVIDE(__pi___memset = __pi_memset); 36 37 #ifdef CONFIG_KVM 38 39 /* 40 * KVM nVHE code has its own symbol namespace prefixed with __kvm_nvhe_, to 41 * separate it from the kernel proper. The following symbols are legally 42 * accessed by it, therefore provide aliases to make them linkable. 43 * Do not include symbols which may not be safely accessed under hypervisor 44 * memory mappings. 45 */ 46 47 /* Alternative callbacks for init-time patching of nVHE hyp code. */ 48 KVM_NVHE_ALIAS(kvm_patch_vector_branch); 49 KVM_NVHE_ALIAS(kvm_update_va_mask); 50 KVM_NVHE_ALIAS(kvm_get_kimage_voffset); 51 KVM_NVHE_ALIAS(kvm_compute_final_ctr_el0); 52 KVM_NVHE_ALIAS(spectre_bhb_patch_loop_iter); 53 KVM_NVHE_ALIAS(spectre_bhb_patch_loop_mitigation_enable); 54 KVM_NVHE_ALIAS(spectre_bhb_patch_wa3); 55 KVM_NVHE_ALIAS(spectre_bhb_patch_clearbhb); 56 KVM_NVHE_ALIAS(alt_cb_patch_nops); 57 58 /* Global kernel state accessed by nVHE hyp code. */ 59 KVM_NVHE_ALIAS(kvm_vgic_global_state); 60 61 /* Kernel symbols used to call panic() from nVHE hyp code (via ERET). */ 62 KVM_NVHE_ALIAS(nvhe_hyp_panic_handler); 63 64 /* Vectors installed by hyp-init on reset HVC. */ 65 KVM_NVHE_ALIAS(__hyp_stub_vectors); 66 67 /* Static keys which are set if a vGIC trap should be handled in hyp. */ 68 KVM_NVHE_ALIAS(vgic_v2_cpuif_trap); 69 KVM_NVHE_ALIAS(vgic_v3_cpuif_trap); 70 71 #ifdef CONFIG_ARM64_PSEUDO_NMI 72 /* Static key checked in GIC_PRIO_IRQOFF. */ 73 KVM_NVHE_ALIAS(gic_nonsecure_priorities); 74 #endif 75 76 /* EL2 exception handling */ 77 KVM_NVHE_ALIAS(__start___kvm_ex_table); 78 KVM_NVHE_ALIAS(__stop___kvm_ex_table); 79 80 /* PMU available static key */ 81 #ifdef CONFIG_HW_PERF_EVENTS 82 KVM_NVHE_ALIAS(kvm_arm_pmu_available); 83 #endif 84 85 /* Position-independent library routines */ 86 KVM_NVHE_ALIAS_HYP(clear_page, __pi_clear_page); 87 KVM_NVHE_ALIAS_HYP(copy_page, __pi_copy_page); 88 KVM_NVHE_ALIAS_HYP(memcpy, __pi_memcpy); 89 KVM_NVHE_ALIAS_HYP(memset, __pi_memset); 90 91 #ifdef CONFIG_KASAN 92 KVM_NVHE_ALIAS_HYP(__memcpy, __pi_memcpy); 93 KVM_NVHE_ALIAS_HYP(__memset, __pi_memset); 94 #endif 95 96 /* Hyp memory sections */ 97 KVM_NVHE_ALIAS(__hyp_idmap_text_start); 98 KVM_NVHE_ALIAS(__hyp_idmap_text_end); 99 KVM_NVHE_ALIAS(__hyp_text_start); 100 KVM_NVHE_ALIAS(__hyp_text_end); 101 KVM_NVHE_ALIAS(__hyp_bss_start); 102 KVM_NVHE_ALIAS(__hyp_bss_end); 103 KVM_NVHE_ALIAS(__hyp_rodata_start); 104 KVM_NVHE_ALIAS(__hyp_rodata_end); 105 106 /* pKVM static key */ 107 KVM_NVHE_ALIAS(kvm_protected_mode_initialized); 108 109 #endif /* CONFIG_KVM */ 110 111 #endif /* __ARM64_KERNEL_IMAGE_VARS_H */ 112