Hi Kevin,
I finally got everything I needed with SeaBIOS debug level set to 8.
These are the relevant snippets from the serial logging: ------------------------------------------- Scan for option roms ... Found CBFS file genroms/test.rom ... Searching CBFS for prefix genroms/ Found CBFS file cmos_layout.bin Found CBFS file fallback/romstage Found CBFS file fallback/coreboot_ram Found CBFS file fallback/payload Found CBFS file genroms/test.rom Copying data 24063@0xfffd58b8 to 157696@0x000c9800 Checking rom 0x000c9800 (sig aa55 size 47) Searching CBFS for prefix genroms/ Found CBFS file ... Checking rom 0x000c9800 (sig aa55 size 47) Searching bootorder for: /rom@genroms/test.rom pmm_malloc zone=0x000f4e54 handle=ffffffff size=20 align=10 ret=0x07fd4b30 (detail=0x07fd4b50) Registering bootable: Legacy option rom (type:129 prio:9999 data:c9800003) Press F12 for boot menu.
Checking for bootsplash Searching CBFS for prefix bootsplash.jpg Found CBFS file cmos_layout.bin Found CBFS file fallback/romstage Found CBFS file fallback/coreboot_ram Found CBFS file fallback/payload Found CBFS file genroms/test.rom Found CBFS file Mapping cd drive 0x000fdb10 Mapping hd drive 0x000fdb40 to 0 drive 0x000fdb40: PCHS=20/16/63 translation=none LCHS=20/16/63 s=20480 Running option rom at c980:0003 pmm call arg1=0 pmm00: length=1000 handle=ffffffff flags=1 pmm_malloc zone=0x000f4e50 handle=ffffffff size=65536 align=10 ret=0x00080000 (detail=0x07fd4b00) ------------------------------------------- What I really needed is the details about the memory allocated by SeaBIOS for the PMM call in the option rom (test.rom above). Particularly, start address of the allocated memory.
Thank you very much for your help
Kind Regards,
Darmawan