sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

OvmfPkg/PlatformPei: prepare for PcdQ35TsegMbytes becoming dynamic

Browse Source 
In one of the next patches we'll turn PcdQ35TsegMbytes into a dynamic PCD,
to be set by PlatformPei. Introduce the Q35TsegMbytesInitialization()
function and the "mQ35TsegMbytes" global variable to support this.

Q35TsegMbytesInitialization() manages the PCD and caches its final value
into "mQ35TsegMbytes". Call Q35TsegMbytesInitialization() from
InitializePlatform() just in time for the current PCD consumers,
PublishPeiMemory(), InitializeRamRegions() and QemuInitializeRam() --
which is called from InitializeRamRegions() -- to be rebased on top of
"mQ35TsegMbytes".

Call Q35TsegMbytesInitialization() only when PcdSmmSmramRequire is TRUE,
given that PcdQ35TsegMbytes is consumed in that case only.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
This commit is contained in:
Laszlo Ersek
2017-07-04 12:44:05 +02:00
parent 5b31f660c9
commit 23bfb5c0aa
3 changed files with 23 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
OvmfPkg/PlatformPei/Platform.h
View File

@@ -53,6 +53,11 @@ AddressWidthInitialization (
VOID
);
VOID
Q35TsegMbytesInitialization (
VOID
);
EFI_STATUS
PublishPeiMemory (
VOID