[U-Boot] [PATCH v3 0/2] x86: efi_loader: Fix invalid address return from efi_alloc()

Park, Aiden aiden.park at intel.com
Tue Sep 3 17:43:39 UTC 2019

This issue can be seen on 32bit operation when one of E820_RAM type
entries is greater than 4GB memory space.

The efi_alloc() finds a free memory in the conventional memory which
is greater than 4GB. But, it does type cast to 32bit address space
and eventually returns invalid address.

Changes in v3:
  * Split a single commit to two relevant commits

Changes in v2:
  * Add efi_add_conventional_memory_map() for common code re-use

Aiden Park (2):
  efi_loader: Extract adding a conventional memory in separate routine
  x86: efi_loader: Use efi_add_conventional_memory_map()

 arch/x86/lib/e820.c         | 17 ++++++--
 include/efi_loader.h        |  4 ++
 lib/efi_loader/efi_memory.c | 82 ++++++++++++++++++++++---------------
 3 files changed, 68 insertions(+), 35 deletions(-)


More information about the U-Boot mailing list