Hello Greg,

We need the following 2 upstream commits applied to 5.4.y to fix an iBFT boot failure:

2021-03-29 rafael.j.wysocki@intel.com - 1a1c130a 2021-03-23 Rafael J. Wysocki ACPI: tables: x86: Reserve memory occupied by ACPI tables 2021-04-13 rafael.j.wysocki@intel.com - 6998a88 2021-04-13 Rafael J. Wysocki ACPI: x86: Call acpi_boot_table_init() after acpi_table_upgrade()

Currently, only the first commit (1a1c130a) is destined for 5.10 & 5.11.

The 2nd commit (6998a88) is needed as well and both commits are needed in 5.4.y.

Thank you, George