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hv: lib: Import libfdt

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Import libfdt (BSD-2-Clause) into ACRN hypervisor library.

Tracked-On: #8838
Signed-off-by: Yifan Liu <yifan1.liu@intel.com>
Acked-by: Wang Yu1 <yu1.wang@intel.com>
This commit is contained in:
Yifan Liu
2025-11-03 08:26:25 +00:00
committed by acrnsi-robot
parent 390db422d8
commit 66f896d40b
16 changed files with 5846 additions and 0 deletions
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42
hypervisor/include/common/io.h
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@@ -258,4 +258,46 @@ static inline uint32_t pio_read(uint16_t addr, size_t sz)
return ret;
}
static inline uint64_t rev64(uint64_t v)
{
return ((v & 0x00000000000000FFULL) << 56) |
((v & 0x000000000000FF00ULL) << 40) |
((v & 0x0000000000FF0000ULL) << 24) |
((v & 0x00000000FF000000ULL) << 8) |
((v & 0x000000FF00000000ULL) >> 8) |
((v & 0x0000FF0000000000ULL) >> 24) |
((v & 0x00FF000000000000ULL) >> 40) |
((v & 0xFF00000000000000ULL) >> 56);
}
static inline uint32_t rev32(uint32_t v)
{
return ((v & 0x000000FFU) << 24) |
((v & 0x0000FF00U) << 8) |
((v & 0x00FF0000U) >> 8) |
((v & 0xFF000000U) >> 24);
}
static inline uint16_t rev16(uint16_t v)
{
return ((v & 0x00FFU) << 8) |
((v & 0xFF00U) >> 8);
}
#ifdef ARCH_CPU_BIG_ENDIAN
static inline uint64_t be64_to_cpu(uint64_t v) { return v; }
static inline uint32_t be32_to_cpu(uint32_t v) { return v; }
static inline uint16_t be16_to_cpu(uint16_t v) { return v; }
static inline uint64_t cpu_to_be64(uint64_t v) { return v; }
static inline uint32_t cpu_to_be32(uint32_t v) { return v; }
static inline uint16_t cpu_to_be16(uint16_t v) { return v; }
#else
static inline uint64_t be64_to_cpu(uint64_t v) { return rev64(v); }
static inline uint32_t be32_to_cpu(uint32_t v) { return rev32(v); }
static inline uint16_t be16_to_cpu(uint16_t v) { return rev16(v); }
static inline uint64_t cpu_to_be64(uint64_t v) { return rev64(v); }
static inline uint32_t cpu_to_be32(uint32_t v) { return rev32(v); }
static inline uint16_t cpu_to_be16(uint16_t v) { return rev16(v); }
#endif
#endif /* IO_H defined */