audk/MdeModulePkg
Michael Kubacki 91a33d4113 MdeModulePkg VariablePei: Return GetVariable() attr if EFI_BUFFER_TOO_SMALL
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=2062

This commit makes the behavior for PeiGetVariable() match the following
specification-defined behavior. It is now consistent with the DXE/SMM
variable driver implementation.

The UEFI specification v2.8 Errata A Section 8.2 "GetVariable()"
"Attributes" parameter description states:

"If not NULL, a pointer to the memory location to return the
 attributes bitmask for the variable. See 'Related Definitions.'
 If not NULL, then Attributes is set on output both when
 EFI_SUCCESS and when EFI_BUFFER_TOO_SMALL is returned."

The attributes were previously only returned from the implementation
in Variable.c on EFI_SUCCESS. They are now returned on EFI_SUCCESS or
EFI_BUFFER_TOO_SMALL according to spec.

Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Guomin Jiang <guomin.jiang@intel.com>
2020-04-07 13:51:24 +00:00
..
Application MdeModulePkg/Application: Fix various typos 2020-02-10 22:30:07 +00:00
Bus MdeModulePkg/SdDxe: Check the Token to avoid null pointer 2020-03-27 01:04:25 +00:00
Core MdeModulePkg/DxeCore: merge properties table routines into MAT handling 2020-04-07 08:15:46 +00:00
Include MdeModulePkg: Remove gEfiFormBrowserExProtocolGuid Protocol Guid 2020-03-30 01:13:49 +00:00
Library MdeModulePkg: Use CopyMem instead of GUID assignment 2020-03-12 03:07:52 +00:00
Logo MdeModulePkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:08 -07:00
Test MdeModulePkg: Add DxeResetSystemLib unit test 2020-02-07 19:18:53 +00:00
Universal MdeModulePkg VariablePei: Return GetVariable() attr if EFI_BUFFER_TOO_SMALL 2020-04-07 13:51:24 +00:00
MdeModulePkg.ci.yaml MdeModulePkg: Remove gEfiFormBrowserExProtocolGuid Protocol Guid 2020-03-30 01:13:49 +00:00
MdeModulePkg.dec MdeModulePkg: disable properties table generation but retain the code 2020-04-07 08:15:46 +00:00
MdeModulePkg.dsc MdeModulePkg: Use LockBoxNullLib for RISC-V 2020-04-03 17:09:12 +00:00
MdeModulePkg.uni MdeModulePkg: disable properties table generation but retain the code 2020-04-07 08:15:46 +00:00
MdeModulePkgExtra.uni MdeModulePkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:08 -07:00