[coreboot] uefi_nvs.bin in coreboot

galla rao galla.rao80 at gmail.com
Wed Nov 21 17:28:03 CET 2018

Hi All,

am trying to save NVRAM variables which are modifed in Uefi Payload, but i
could not save it.

what is the role of uefi_nvs.bin file?


Even the boot order does not save into NVRAM variables

Can some one help me on this, Base address is given below

gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase   | 0xFFF60000

  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase |

  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase   |

In coreboot, i have given the same address

[image: image.png]

Thanks & Regards
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