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IntelFsp2WrapperPkg: Add support to handle ResetRequired return Status from FSP.

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As per FSP 2.0 spec, FSP shall not trigger system reset and instead it
shall return from the FSP API to the BL/Wrapper with the required reset
type. The changes are to handle the ResetRequired return code from FSP
APIs and provide lib interface for platform to trigger the actual reset.

Cc: Giri P Mudusuru <giri.p.mudusuru@intel.com>
Cc: Amy Chan <amy.chan@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Satya Yarlagadda <satya.p.yarlagadda@intel.com>
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com>
This commit is contained in:
Jiewen Yao
2016-06-17 10:38:09 +08:00
parent e918029fbc
commit f862a3b6f9
6 changed files with 105 additions and 1 deletions
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9
IntelFsp2WrapperPkg/FspmWrapperPeim/FspmWrapperPeim.c
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@@ -88,6 +88,15 @@ PeiFspMemoryInit (
PERF_START_EX(&gFspApiPerformanceGuid, "EventRec", NULL, TimeStampCounterStart, 0xD000);
PERF_END_EX(&gFspApiPerformanceGuid, "EventRec", NULL, 0, 0xD07F);
DEBUG ((DEBUG_INFO, "Total time spent executing FspMemoryInitApi: %d millisecond\n", DivU64x32 (GetTimeInNanoSecond (AsmReadTsc () - TimeStampCounterStart), 1000000)));
//
// Reset the system if FSP API returned FSP_STATUS_RESET_REQUIRED status
//
if ((Status >= FSP_STATUS_RESET_REQUIRED_COLD) && (Status <= FSP_STATUS_RESET_REQUIRED_8)) {
DEBUG((DEBUG_INFO, "FspMemoryInitApi requested reset 0x%x\n", Status));
CallFspWrapperResetSystem ((UINT32)Status);
}
if (EFI_ERROR(Status)) {
DEBUG ((DEBUG_ERROR, "ERROR - Failed to execute FspMemoryInitApi(), Status = %r\n", Status));
}