Garrett,
Currently, the EDKII build system does not support build a DXE/SMM combination
driver, although the DXE Dispatcher and SMM Driver Dispatcher support loading
such a driver image from FV.
There is an alternative way to work-around this issue. That is, have two INF
files in the same directory, one is for DXE driver, the other is for SMM
driver. The disadvantage is size impact (some common code is duplicated in two
driver images).
From: Kirkendall, Garrett [mailto:[email protected]]
Sent: Wednesday, July 18, 2012 9:55 PM
To: [email protected]
Subject: [edk2] SMM Driver question in EDKII
Can the EDKII build tools support generating a combination DXE and SMM driver
of type EFI_FV_FILETYPE_COMBINED_SMM_DXE like the PI 1.2.1 specification
suggests?
>From what I have found and seem to have confirmed with VolInfo.exe, the INF
>file MODULE_TYPE = DXE_SMM_DRIVER creates a file of type EFI_FV_FILETYPE_SMM
>and an EFI_SECTION_SMM_DEPEX.
If this is true, what are other developers doing when they have two pieces of
code that are closely related that would have been developed as a single driver
in EDK? Two separate drivers? Or am I missing something?
Thanks,
Garrett Kirkendall
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