tree 7d55179e927f63728de09b99697446a93aa45725
parent dfccbc76ebac9598413ead359bb7b40240101af5
author Andrew Jones <andrew.jones@linux.dev> 1709657198 +0100
committer Andrew Jones <andrew.jones@linux.dev> 1710776596 +0100

arm64: Add memregions_efi_init

Provide a memregions function which initialized memregions from an
EFI memory map. Add a new memregions flag (MR_F_PERSISTENT) for
EFI_PERSISTENT_MEMORY since that type should not be reserved, but it
should also be distinct from conventional memory. The function also
points out the largest conventional memory region by returning a
pointer to it in the freemem parameter. Immediately apply this
function to arm64's efi_mem_init(). riscv will make use of it as well.

Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Signed-off-by: Andrew Jones <andrew.jones@linux.dev>