CapsuleCache.c

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#include "CapsuleService.h"
 
#include <Library/CacheMaintenanceLib.h>
 
VOID
CapsuleCacheWriteBack (
  IN  EFI_PHYSICAL_ADDRESS  ScatterGatherList
  )
{
  EFI_CAPSULE_BLOCK_DESCRIPTOR  *Desc;
 
  if (!EfiAtRuntime ()) {
    Desc = (EFI_CAPSULE_BLOCK_DESCRIPTOR *)(UINTN)ScatterGatherList;
    do {
      WriteBackDataCacheRange (
        (VOID *)(UINTN)Desc,
        (UINTN)sizeof (*Desc)
        );
 
      if (Desc->Length > 0) {
        WriteBackDataCacheRange (
          (VOID *)(UINTN)Desc->Union.DataBlock,
          (UINTN)Desc->Length
          );
        Desc++;
      } else if (Desc->Union.ContinuationPointer > 0) {
        Desc = (EFI_CAPSULE_BLOCK_DESCRIPTOR *)(UINTN)Desc->Union.ContinuationPointer;
      }
    } while (Desc->Length > 0 || Desc->Union.ContinuationPointer > 0);
 
    WriteBackDataCacheRange (
      (VOID *)(UINTN)Desc,
      (UINTN)sizeof (*Desc)
      );
  }
}