HelenOS sources

KM_AMD64_IDENTITY_SIZE   44 kernel/arch/amd64/include/arch/mm/km.h #define KM_AMD64_IDENTITY_SIZE       UINT64_C(0x0000000080000000)
KM_AMD64_IDENTITY_SIZE   54 kernel/arch/amd64/include/arch/mm/km.h #define KM_AMD64_IDENTITY_SIZE       UINT64_C(0x0000400000000000)
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