1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Linker script variables to be set after section resolution, as
4 * ld.lld does not like variables assigned before SECTIONS is processed.
6 #ifndef __ARM64_KERNEL_IMAGE_VARS_H
7 #define __ARM64_KERNEL_IMAGE_VARS_H
10 #error This file should only be included in vmlinux.lds.S
13 PROVIDE(__efistub_kernel_size = _edata - _text);
14 PROVIDE(__efistub_primary_entry_offset = primary_entry - _text);
17 * The EFI stub has its own symbol namespace prefixed by __efistub_, to
18 * isolate it from the kernel proper. The following symbols are legally
19 * accessed by the stub, so provide some aliases to make them accessible.
20 * Only include data symbols here, or text symbols of functions that are
21 * guaranteed to be safe when executed at another offset than they were
22 * linked at. The routines below are all implemented in assembler in a
23 * position independent manner
25 PROVIDE(__efistub_memcmp = __pi_memcmp);
26 PROVIDE(__efistub_memchr = __pi_memchr);
27 PROVIDE(__efistub_strlen = __pi_strlen);
28 PROVIDE(__efistub_strnlen = __pi_strnlen);
29 PROVIDE(__efistub_strcmp = __pi_strcmp);
30 PROVIDE(__efistub_strncmp = __pi_strncmp);
31 PROVIDE(__efistub_strrchr = __pi_strrchr);
32 PROVIDE(__efistub_dcache_clean_poc = __pi_dcache_clean_poc);
34 PROVIDE(__efistub__text = _text);
35 PROVIDE(__efistub__end = _end);
36 PROVIDE(__efistub__edata = _edata);
37 PROVIDE(__efistub_screen_info = screen_info);
38 PROVIDE(__efistub__ctype = _ctype);
40 PROVIDE(__pi___memcpy = __pi_memcpy);
41 PROVIDE(__pi___memmove = __pi_memmove);
42 PROVIDE(__pi___memset = __pi_memset);
47 * KVM nVHE code has its own symbol namespace prefixed with __kvm_nvhe_, to
48 * separate it from the kernel proper. The following symbols are legally
49 * accessed by it, therefore provide aliases to make them linkable.
50 * Do not include symbols which may not be safely accessed under hypervisor
54 /* Alternative callbacks for init-time patching of nVHE hyp code. */
55 KVM_NVHE_ALIAS(kvm_patch_vector_branch);
56 KVM_NVHE_ALIAS(kvm_update_va_mask);
57 KVM_NVHE_ALIAS(kvm_get_kimage_voffset);
58 KVM_NVHE_ALIAS(kvm_compute_final_ctr_el0);
59 KVM_NVHE_ALIAS(spectre_bhb_patch_loop_iter);
60 KVM_NVHE_ALIAS(spectre_bhb_patch_loop_mitigation_enable);
61 KVM_NVHE_ALIAS(spectre_bhb_patch_wa3);
62 KVM_NVHE_ALIAS(spectre_bhb_patch_clearbhb);
63 KVM_NVHE_ALIAS(alt_cb_patch_nops);
65 /* Global kernel state accessed by nVHE hyp code. */
66 KVM_NVHE_ALIAS(kvm_vgic_global_state);
68 /* Kernel symbols used to call panic() from nVHE hyp code (via ERET). */
69 KVM_NVHE_ALIAS(nvhe_hyp_panic_handler);
71 /* Vectors installed by hyp-init on reset HVC. */
72 KVM_NVHE_ALIAS(__hyp_stub_vectors);
74 /* Kernel symbol used by icache_is_vpipt(). */
75 KVM_NVHE_ALIAS(__icache_flags);
77 /* VMID bits set by the KVM VMID allocator */
78 KVM_NVHE_ALIAS(kvm_arm_vmid_bits);
80 /* Static keys which are set if a vGIC trap should be handled in hyp. */
81 KVM_NVHE_ALIAS(vgic_v2_cpuif_trap);
82 KVM_NVHE_ALIAS(vgic_v3_cpuif_trap);
84 /* Static key checked in pmr_sync(). */
85 #ifdef CONFIG_ARM64_PSEUDO_NMI
86 KVM_NVHE_ALIAS(gic_pmr_sync);
87 /* Static key checked in GIC_PRIO_IRQOFF. */
88 KVM_NVHE_ALIAS(gic_nonsecure_priorities);
91 /* EL2 exception handling */
92 KVM_NVHE_ALIAS(__start___kvm_ex_table);
93 KVM_NVHE_ALIAS(__stop___kvm_ex_table);
95 /* Array containing bases of nVHE per-CPU memory regions. */
96 KVM_NVHE_ALIAS(kvm_arm_hyp_percpu_base);
98 /* PMU available static key */
99 #ifdef CONFIG_HW_PERF_EVENTS
100 KVM_NVHE_ALIAS(kvm_arm_pmu_available);
103 /* Position-independent library routines */
104 KVM_NVHE_ALIAS_HYP(clear_page, __pi_clear_page);
105 KVM_NVHE_ALIAS_HYP(copy_page, __pi_copy_page);
106 KVM_NVHE_ALIAS_HYP(memcpy, __pi_memcpy);
107 KVM_NVHE_ALIAS_HYP(memset, __pi_memset);
110 KVM_NVHE_ALIAS_HYP(__memcpy, __pi_memcpy);
111 KVM_NVHE_ALIAS_HYP(__memset, __pi_memset);
114 /* Kernel memory sections */
115 KVM_NVHE_ALIAS(__start_rodata);
116 KVM_NVHE_ALIAS(__end_rodata);
117 KVM_NVHE_ALIAS(__bss_start);
118 KVM_NVHE_ALIAS(__bss_stop);
120 /* Hyp memory sections */
121 KVM_NVHE_ALIAS(__hyp_idmap_text_start);
122 KVM_NVHE_ALIAS(__hyp_idmap_text_end);
123 KVM_NVHE_ALIAS(__hyp_text_start);
124 KVM_NVHE_ALIAS(__hyp_text_end);
125 KVM_NVHE_ALIAS(__hyp_bss_start);
126 KVM_NVHE_ALIAS(__hyp_bss_end);
127 KVM_NVHE_ALIAS(__hyp_rodata_start);
128 KVM_NVHE_ALIAS(__hyp_rodata_end);
130 /* pKVM static key */
131 KVM_NVHE_ALIAS(kvm_protected_mode_initialized);
133 #endif /* CONFIG_KVM */
135 #endif /* __ARM64_KERNEL_IMAGE_VARS_H */