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_offset = primary_entry - _text); 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_dcache_clean_poc = __pi_dcache_clean_poc); 25 26 PROVIDE(__efistub__text = _text); 27 PROVIDE(__efistub__end = _end); 28 PROVIDE(__efistub__edata = _edata); 29 PROVIDE(__efistub_screen_info = screen_info); 30 PROVIDE(__efistub__ctype = _ctype); 31 32 PROVIDE(__pi___memcpy = __pi_memcpy); 33 PROVIDE(__pi___memmove = __pi_memmove); 34 PROVIDE(__pi___memset = __pi_memset); 35 36 #ifdef CONFIG_KVM 37 38 /* 39 * KVM nVHE code has its own symbol namespace prefixed with __kvm_nvhe_, to 40 * separate it from the kernel proper. The following symbols are legally 41 * accessed by it, therefore provide aliases to make them linkable. 42 * Do not include symbols which may not be safely accessed under hypervisor 43 * memory mappings. 44 */ 45 46 /* Alternative callbacks for init-time patching of nVHE hyp code. */ 47 KVM_NVHE_ALIAS(kvm_patch_vector_branch); 48 KVM_NVHE_ALIAS(kvm_update_va_mask); 49 KVM_NVHE_ALIAS(kvm_get_kimage_voffset); 50 KVM_NVHE_ALIAS(kvm_compute_final_ctr_el0); 51 KVM_NVHE_ALIAS(spectre_bhb_patch_loop_iter); 52 KVM_NVHE_ALIAS(spectre_bhb_patch_loop_mitigation_enable); 53 KVM_NVHE_ALIAS(spectre_bhb_patch_wa3); 54 KVM_NVHE_ALIAS(spectre_bhb_patch_clearbhb); 55 KVM_NVHE_ALIAS(alt_cb_patch_nops); 56 57 /* Global kernel state accessed by nVHE hyp code. */ 58 KVM_NVHE_ALIAS(kvm_vgic_global_state); 59 60 /* Kernel symbols used to call panic() from nVHE hyp code (via ERET). */ 61 KVM_NVHE_ALIAS(nvhe_hyp_panic_handler); 62 63 /* Vectors installed by hyp-init on reset HVC. */ 64 KVM_NVHE_ALIAS(__hyp_stub_vectors); 65 66 /* Static keys which are set if a vGIC trap should be handled in hyp. */ 67 KVM_NVHE_ALIAS(vgic_v2_cpuif_trap); 68 KVM_NVHE_ALIAS(vgic_v3_cpuif_trap); 69 70 /* Static key checked in pmr_sync(). */ 71 #ifdef CONFIG_ARM64_PSEUDO_NMI 72 KVM_NVHE_ALIAS(gic_pmr_sync); 73 /* Static key checked in GIC_PRIO_IRQOFF. */ 74 KVM_NVHE_ALIAS(gic_nonsecure_priorities); 75 #endif 76 77 /* EL2 exception handling */ 78 KVM_NVHE_ALIAS(__start___kvm_ex_table); 79 KVM_NVHE_ALIAS(__stop___kvm_ex_table); 80 81 /* PMU available static key */ 82 #ifdef CONFIG_HW_PERF_EVENTS 83 KVM_NVHE_ALIAS(kvm_arm_pmu_available); 84 #endif 85 86 /* Position-independent library routines */ 87 KVM_NVHE_ALIAS_HYP(clear_page, __pi_clear_page); 88 KVM_NVHE_ALIAS_HYP(copy_page, __pi_copy_page); 89 KVM_NVHE_ALIAS_HYP(memcpy, __pi_memcpy); 90 KVM_NVHE_ALIAS_HYP(memset, __pi_memset); 91 92 #ifdef CONFIG_KASAN 93 KVM_NVHE_ALIAS_HYP(__memcpy, __pi_memcpy); 94 KVM_NVHE_ALIAS_HYP(__memset, __pi_memset); 95 #endif 96 97 /* Hyp memory sections */ 98 KVM_NVHE_ALIAS(__hyp_idmap_text_start); 99 KVM_NVHE_ALIAS(__hyp_idmap_text_end); 100 KVM_NVHE_ALIAS(__hyp_text_start); 101 KVM_NVHE_ALIAS(__hyp_text_end); 102 KVM_NVHE_ALIAS(__hyp_bss_start); 103 KVM_NVHE_ALIAS(__hyp_bss_end); 104 KVM_NVHE_ALIAS(__hyp_rodata_start); 105 KVM_NVHE_ALIAS(__hyp_rodata_end); 106 107 /* pKVM static key */ 108 KVM_NVHE_ALIAS(kvm_protected_mode_initialized); 109 110 #endif /* CONFIG_KVM */ 111 112 #endif /* __ARM64_KERNEL_IMAGE_VARS_H */ 113