#define __HYP_CONCAT(a, b) a ## b #define HYP_CONCAT(a, b) __HYP_CONCAT(a, b)
#ifndef __KVM_NVHE_HYPERVISOR__ /* * KVM nVHE code has its own symbol namespace prefixed with __kvm_nvhe_, * to separate it from the kernel proper.
*/ #define kvm_nvhe_sym(sym) __kvm_nvhe_##sym #else #define kvm_nvhe_sym(sym) sym #endif
#ifdef LINKER_SCRIPT
/* * KVM nVHE ELF section names are prefixed with .hyp, to separate them * from the kernel proper.
*/ #define HYP_SECTION_NAME(NAME) .hyp##NAME
/* Symbol defined at the beginning of each hyp section. */ #define HYP_SECTION_SYMBOL_NAME(NAME) \
HYP_CONCAT(__hyp_section_, HYP_SECTION_NAME(NAME))
/* * Helper to generate linker script statements starting a hyp section. * * A symbol with a well-known name is defined at the first byte. This * is used as a base for hyp relocations (see gen-hyprel.c). It must * be defined inside the section so the linker of `vmlinux` cannot * separate it from the section data.
*/ #define BEGIN_HYP_SECTION(NAME) \
HYP_SECTION_NAME(NAME) : { \
HYP_SECTION_SYMBOL_NAME(NAME) = .;
/* Helper to generate linker script statements ending a hyp section. */ #define END_HYP_SECTION \
}
/* Defines an ELF hyp section from input section @NAME and its subsections. */ #define HYP_SECTION(NAME) \
BEGIN_HYP_SECTION(NAME) \
*(NAME NAME##.*) \
END_HYP_SECTION
/* * Defines a linker script alias of a kernel-proper symbol referenced by * KVM nVHE hyp code.
*/ #define KVM_NVHE_ALIAS(sym) kvm_nvhe_sym(sym) = sym;
/* Defines a linker script alias for KVM nVHE hyp symbols */ #define KVM_NVHE_ALIAS_HYP(first, sec) kvm_nvhe_sym(first) = kvm_nvhe_sym(sec);
#endif/* LINKER_SCRIPT */
#endif/* __ARM64_HYP_IMAGE_H__ */
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