Branch: refs/heads/master
Home: https://github.com/tianocore/edk2
Commit: 534021965f6f7c417610add53984f39d6945bbcf
https://github.com/tianocore/edk2/commit/534021965f6f7c417610add53984f39d6945bbcf
Author: Zhi Jin <[email protected]>
Date: 2023-12-01 (Fri, 01 Dec 2023)
Changed paths:
M MdeModulePkg/Core/Dxe/Hand/Handle.c
Log Message:
-----------
MdeModulePkg: Optimize CoreInstallMultipleProtocolInterfaces
CoreLocateDevicePath is used in CoreInstallMultipleProtocolInterfaces to
check if a Device Path Protocol instance with the same device path is
alreay installed.
CoreLocateDevicePath is a generic API, and would introduce some
unnecessary overhead for such usage.
The optimization is:
1. Implement IsDevicePathInstalled to loop all the Device Path
Protocols installed and check if any of them matchs the given device
path.
2. Replace CoreLocateDevicePath with IsDevicePathInstalled in
CoreInstallMultipleProtocolInterfaces.
This optimization could save several seconds in PCI enumeration on a
system with many PCI devices.
Cc: Jian J Wang <[email protected]>
Cc: Liming Gao <[email protected]>
Cc: Dandan Bi <[email protected]>
Cc: Ray Ni <[email protected]>
Signed-off-by: Zhi Jin <[email protected]>
Reviewed-by: Ray Ni <[email protected]>
Reviewed-by: Liming Gao <[email protected]>
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