Ard Biesheuvel d1a8d66b91 efi/libstub: Call get_memory_map() to obtain map and desc sizes ... This fixes two minor issues in the implementation of get_memory_map(): - Currently, it assumes that sizeof(efi_memory_desc_t) == desc_size, which is usually true, but not mandated by the spec. (This was added intentionally to allow future additions to the definition of efi_memory_desc_t). The way the loop is implemented currently, the added slack space may be insufficient if desc_size is larger, which in some corner cases could result in the loop never terminating. - It allocates 32 efi_memory_desc_t entries first (again, using the size of the struct instead of desc_size), and frees and reallocates if it turns out to be insufficient. Few implementations of UEFI have such small memory maps, which results in a unnecessary allocate/free pair on each invocation. Fix this by calling the get_memory_map() boot service first with a '0' input value for map size to retrieve the map size and desc size from the firmware and only then perform the allocation, using desc_size rather than sizeof(efi_memory_desc_t). Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Matt Fleming <matt.fleming@intel.com>		2015-01-20 22:13:33 +00:00
..
arm-stub.c	arm64/efi: efistub: Apply __init annotation	2015-01-15 21:28:35 +00:00
efi-stub-helper.c	efi/libstub: Call get_memory_map() to obtain map and desc sizes	2015-01-20 22:13:33 +00:00
efistub.h
fdt.c
Makefile	arm64/efi: efistub: Apply __init annotation	2015-01-15 21:28:35 +00:00