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[v4,00/17] efi_loader: non-volatile and runtime variables

Message ID 20200711220544.120976-1-xypron.glpk@gmx.de
Headers show
Series efi_loader: non-volatile and runtime variables | expand

Message

Heinrich Schuchardt July 11, 2020, 10:05 p.m. UTC 
With this patch series file ubootefi.var in the EFI system partition is
used for saving UEFI variables.

Furthermore the UEFI variables are exposed for reading at runtime.

v4:
	Correct appending of variables when using the memory based store.
	Performance enhancement for the memory based store.
v3:
	Use efi_var_mem_ins() when restoring variables from file.
	Remove EFI_VARIABLE_READ_ONLY attribute in runtime GetVariable().
	Avoid setting efi_runtime_services.set_variable twice.
v2:
	Rebase the series to consider OP-TEE based variables and
	authenticated variables.
	Do not enable SetVariable() at runtime as we cannot persist
	non-volatile variables at runtime.
	Display read-only attribute in printenv -e.

Heinrich Schuchardt (17):
  efi_loader: prepare for read only OP-TEE variables
  efi_loader: display RO attribute in printenv -e
  efi_loader: separate UEFI variable API from implemementation
  efi_loader: OsIndicationsSupported, PlatformLangCodes
  efi_loader: simplify boot manager
  efi_loader: keep attributes in efi_set_variable_int
  efi_loader: value of VendorKeys
  efi_loader: read-only AuditMode and DeployedMode
  efi_loader: secure boot flag
  efi_loader: UEFI variable persistence
  efi_loader: export efi_convert_pointer()
  efi_loader: optional pointer for ConvertPointer
  efi_loader: new function efi_memcpy_runtime()
  efi_loader: memory buffer for variables
  efi_loader: use memory based variable storage
  efi_loader: enable UEFI variables at runtime
  efi_selftest: adjust runtime test for variables

 cmd/nvedit_efi.c                              |  24 +-
 doc/api/efi.rst                               |   2 +
 include/efi_api.h                             |   2 +
 include/efi_loader.h                          |   6 +
 include/efi_variable.h                        | 198 +++++
 lib/efi_loader/Kconfig                        |   8 +
 lib/efi_loader/Makefile                       |   3 +
 lib/efi_loader/efi_bootmgr.c                  |  28 +-
 lib/efi_loader/efi_runtime.c                  |  35 +-
 lib/efi_loader/efi_setup.c                    |  59 +-
 lib/efi_loader/efi_var_common.c               | 140 +++
 lib/efi_loader/efi_var_file.c                 | 239 +++++
 lib/efi_loader/efi_var_mem.c                  | 266 ++++++
 lib/efi_loader/efi_variable.c                 | 836 ++++--------------
 lib/efi_loader/efi_variable_tee.c             | 130 +--
 .../efi_selftest_variables_runtime.c          |  13 +-
 16 files changed, 1162 insertions(+), 827 deletions(-)
 create mode 100644 include/efi_variable.h
 create mode 100644 lib/efi_loader/efi_var_common.c
 create mode 100644 lib/efi_loader/efi_var_file.c
 create mode 100644 lib/efi_loader/efi_var_mem.c

--
2.27.0