Commit Graph

7 Commits

Author SHA1 Message Date
jljusten 59b1946970 OvmfPkg NvVarsFileLib: Leverage SerializeVariablesLib
Utilize SerializeVariablesLib to simplify this library's
implementation.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11286 6f19259b-4bc3-4df7-8a09-765794883524
2011-01-30 19:50:08 +00:00
hhtian 56d7640a53 Update the copyright notice format
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10439 6f19259b-4bc3-4df7-8a09-765794883524
2010-04-28 12:43:04 +00:00
lgao4 7b202cb0f9 1. Correct File header to ## @file
2. Remove unnecessary .common] postfix on section.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10051 6f19259b-4bc3-4df7-8a09-765794883524
2010-02-23 23:58:38 +00:00
jljusten 9607962def OVMF: Add support for saving the NV variables to disk following each SetVariable call.
Note:
* This only works before ExitBootServices
* For OVMF, variables are only preserved on the disk if there
  is a hard disk connected which has a writeable FAT file system.

The Ovmf/Library/EmuVariableFvbLib library will look for the
gUefiOvmfPkgTokenSpaceGuid.PcdEmuVariableEvent PCD to be set to
a non-zero value.  If set, it is treated as an event handle, and
each write to the EmuVariableFvb will cause the event to be
signaled.

In this change, the OVMF platform BDS library sets up this event,
and sets the PCD so that after each write to the EMU Variable FVB,
the non-volatile variables will be saved out to the file system.

The end result is that NV variables that are written prior to the
ExitBootServices call should be preserved by storing them on the
disk.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9318 6f19259b-4bc3-4df7-8a09-765794883524
2009-09-26 07:15:55 +00:00
jljusten 0f729825d0 NvVarsFileLib: Fix build warning with VS2005 on X64.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9305 6f19259b-4bc3-4df7-8a09-765794883524
2009-09-22 23:44:17 +00:00
qhuang8 7d9cf3f25e Fix several build break in Ovmf package.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9292 6f19259b-4bc3-4df7-8a09-765794883524
2009-09-21 14:20:11 +00:00
jljusten 5094454579 Implement NvVarsFileLib to save and restore non-volatile variables using a file.
This library provides an interface where variables can be saved and restored
using a file in a file system accessible to the firmware.  It is expected
that a platform BDS library will use this library.  The platform BDS
implementation can decide which devices to connect and then to attempt to use
for saving and restoring NV variables.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9272 6f19259b-4bc3-4df7-8a09-765794883524
2009-09-16 16:28:55 +00:00