Commit Graph

5 Commits

Author SHA1 Message Date
Ruiyu Ni fe32096778 PcAtChipsetPkg/PcRtc: Fix a Y2K bug
The original driver cannot handle the case when system time runs from 1999/12/31 23:59:59
to 2000/1/1 0:0:0.
A simple test to set system time to 1999/12/31 23:59:59 can expose this bug.
The patch limits the driver to only support year in 100 range and decide the century value based
on the supporting range: Century either equals to PcdMinimalYear / 100 or equals to PcdMinimalYear / 100 + 1.

The patch passed the Y2K test.
However with year range [1998, 2097], when system time is 2097/12/31 23:59:59,
the next second system time will become 1998/1/1 0:0:0. I think it's a acceptable limitation.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17624 6f19259b-4bc3-4df7-8a09-765794883524
2015-06-11 07:14:18 +00:00
li-elvin 44d52203a6 Add missing status code in several modules.
Signed-off-by: Li Elvin <elvin.li@intel.com>
Reviewed-by: Yao Jiewen <jiewen.yao@intel.com>
Reviewed-by: Ni Ruiyu <ruiyu.ni@intel.com>
Reviewed-by: Gao Liming <liming.gao@intel.com>
Reviewed-by: Tian Feng <feng.tian@intel.com>
Reviewed-by: Fan Jeff <jeff.fan@intel.com>


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13891 6f19259b-4bc3-4df7-8a09-765794883524
2012-10-30 04:25:20 +00:00
ydong10 24115e4492 RefRefine soma code to make code run safely.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10885 6f19259b-4bc3-4df7-8a09-765794883524
2010-09-17 10:42:10 +00:00
hhtian 95d48e8299 Update the copyright notice format
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10426 6f19259b-4bc3-4df7-8a09-765794883524
2010-04-24 12:07:51 +00:00
klu2 345e5a6556 Move PcatRealTimeClockRuntimeDxe driver to PcAtChipsetPkg
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8766 6f19259b-4bc3-4df7-8a09-765794883524
2009-07-07 02:48:17 +00:00