Hello Alireza,

1. I load board by factory bios and by SBL+EDK. Results of memmap are similar in my opinion.
factory memmap
 Reserved  :         51,137 Pages (209,457,152 Bytes)
 LoaderCode:            229 Pages (937,984 Bytes)
 LoaderData:              0 Pages (0 Bytes)
 BS_Code   :          3,042 Pages (12,460,032 Bytes)
 BS_Data   :         27,162 Pages (111,255,552 Bytes)
 RT_Code   :            163 Pages (667,648 Bytes)
 RT_Data   :          4,221 Pages (17,289,216 Bytes)
 ACPI_Recl :            243 Pages (995,328 Bytes)
 ACPI_NVS  :            192 Pages (786,432 Bytes)
 MMIO      :         69,652 Pages (285,294,592 Bytes)
 MMIO_Port :              0 Pages (0 Bytes)
 PalCode   :              0 Pages (0 Bytes)
 Available :      2,007,275 Pages (8,221,798,400 Bytes)
 Persistent:              0 Pages (0 Bytes)
             -------------- 
Total Memory:          7,978 MB (8,366,190,592 Bytes)
SBL+EDK memmap
 Reserved  :         40,566 Pages (166,158,336 Bytes)
 LoaderCode:            229 Pages (937,984 Bytes)
 LoaderData:              0 Pages (0 Bytes)
 BS_Code   :            799 Pages (3,272,704 Bytes)
 BS_Data   :         15,165 Pages (62,115,840 Bytes)
 RT_Code   :             95 Pages (389,120 Bytes)
 RT_Data   :             60 Pages (245,760 Bytes)
 ACPI_Recl :            252 Pages (1,032,192 Bytes)
 ACPI_NVS  :              9 Pages (36,864 Bytes)
 MMIO      :              0 Pages (0 Bytes)
 MMIO_Port :              0 Pages (0 Bytes)
 PalCode   :              0 Pages (0 Bytes)
 Available :      2,043,145 Pages (8,368,721,920 Bytes)
 Persistent:              0 Pages (0 Bytes)
             -------------- 
Total Memory:          8,045 MB (8,436,752,384 Bytes)
Full logs are available in attachments.

2. I bulid kernel with CONFIG_CONSOLE_LOGLEVEL_DEFAULT=10, CONFIG_CONSOLE_LOGLEVEL_QUIET=10, CONFIG_MESSAGE_LOGLEVEL_DEFAULT=7 . Or do I need to pass a special kernel boot option?
3. The same result: kernel is freezing before first printk.
4. Has memory map HOB gLoaderMemoryMapInfoGuid ?

P.S. How did You give debug serial port from EDK to OS's full subordination?


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