https://bugzilla.tianocore.org/show_bug.cgi?id=765
The UEFI Specification Boot Services chapter, StartImage() service,
EFF 1.10 Extension requires extra calls to ConnectController()
if a UEFI Driver produces handles. The DXE Core is performing these
extra calls to ConnectController() without evaluating the ImageType.
A filter is added to not make extra calls to ConnectController()
if the ImageType is EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION.
Without this filter, extra calls to ConnectController() may be
performed by UEFI Applications or a UEFI Shell Applications that
also call ConnectController().
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
mCurrentImage = LastImage;\r
\r
//\r
mCurrentImage = LastImage;\r
\r
//\r
- // Go connect any handles that were created or modified while the image executed.\r
+ // UEFI Specification - StartImage() - EFI 1.10 Extension\r
+ // To maintain compatibility with UEFI drivers that are written to the EFI\r
+ // 1.02 Specification, StartImage() must monitor the handle database before\r
+ // and after each image is started. If any handles are created or modified\r
+ // when an image is started, then EFI_BOOT_SERVICES.ConnectController() must\r
+ // be called with the Recursive parameter set to TRUE for each of the newly\r
+ // created or modified handles before StartImage() returns.\r
- CoreConnectHandlesByKey (HandleDatabaseKey);\r
+ if (Image->Type != EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION) {\r
+ CoreConnectHandlesByKey (HandleDatabaseKey);\r
+ }\r
\r
//\r
// Handle the image's returned ExitData\r
\r
//\r
// Handle the image's returned ExitData\r