Hi, we've discussed this briefly at OSFC: Linux's ELF file (vmlinux) currently has segments starting at 0x0 (if you look at the physical address field) and an entry point at 0xffffffe000000000:
> $ readelf -l vmlinux > > Elf file type is EXEC (Executable file) > Entry point 0xffffffe000000000 > There are 3 program headers, starting at offset 64 > > Program Headers: > Type Offset VirtAddr PhysAddr > FileSiz MemSiz Flags Align > LOAD 0x0000000000001000 0xffffffe000000000 0x0000000000000000 > 0x000000000000ffce 0x000000000000ffce R E 0x1000 > LOAD 0x0000000000011000 0xffffffe000010000 0x0000000000010000 > 0x00000000002cda3c 0x00000000002cda3c RWE 0x1000 > NOTE 0x00000000002dea00 0xffffffe0002dda00 0x00000000002dda00 > 0x000000000000003c 0x000000000000003c R 0x4 > > Section to Segment mapping: > Segment Sections... > 00 .init.text > 01 .init.data .exit.text .data..percpu .text .softirqentry.text > .rodata __param __modver .srodata .data __bug_table .sdata .bss __ex_table > .notes > 02 .notes coreboot's SELF loader rightly points out that 0x0 is not in RAM: > Loading segment from ROM address 0x00000000200287b8 > code (compression=0) > New segment dstaddr 0x0 memsize 0xffce srcaddr 0x2002880c filesize 0xffce > Loading segment from ROM address 0x00000000200287d4 > code (compression=0) > New segment dstaddr 0x10000 memsize 0x2cda3c srcaddr 0x200387da filesize > 0x2cda3c > Loading segment from ROM address 0x00000000200287f0 > Entry Point 0xffffffe000000000 > SELF Payload doesn't target RAM: > Failed Segment: 0x0, 65486 bytes > 0. 0000000080000000-0000000080011fff: RAMSTAGE > 1. 0000000080012000-000000008003ffff: RAM > 2. 0000000080040000-0000000080044fff: RAMSTAGE > 3. 0000000080045000-00000000fffdbfff: RAM > 4. 00000000fffdc000-00000000ffffffff: CONFIGURATION TABLES > 5. 0000000100000000-000000027fffffff: RAM > Payload not loaded. How should we solve this? One option I see is to keep CONFIG_PAYLOAD_ELF as is, and add quirks to CONFIG_PAYLOAD_LINUX. Jonathan
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