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There're two ASSERT issues which will be triggered by boot loader of Windows 10. The first is caused by allocating memory in heap guard during another memory allocation, which is not allowed in DXE core. Avoiding reentry of memory allocation has been considered in heap guard feature. But there's a hole in the code of function FindGuardedMemoryMap(). The fix is adding AllocMapUnit parameter in the condition of while(), which will prevent memory allocation from happenning during Guard page check operation. The second is caused by the core trying to allocate page 0 with Guard page, which will cause the start address rolling back to the end of supported system address. According to the requirement of heap guard, the fix is just simply skipping the free memory at page 0 and let the core continue searching free memory after it. Cc: Star Zeng <star.zeng@intel.com> Cc: Eric Dong <eric.dong@intel.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Jian J Wang <jian.j.wang@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> |
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