MdeModulePkg/NvmExpressPei: Avoid updating the module-level variable
This commit is out of the scope for BZ-1409. The commit will remove the call of RegisterForShadow() at the entry point of the driver. By doing so, the driver is now possible to be executed without being re-loaded into permanent memory. Thus, this commit will update the NvmExpressPei driver to avoid updating the content of a global variable. Cc: Jian J Wang <jian.j.wang@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Hao Wu <hao.a.wu@intel.com> Reviewed-by: Ray Ni <ray.ni@intel.com>
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@@ -2,7 +2,7 @@
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The NvmExpressPei driver is used to manage non-volatile memory subsystem
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which follows NVM Express specification at PEI phase.
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Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
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Copyright (c) 2018 - 2019, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions
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@@ -214,13 +214,6 @@ NvmExpressPeimEntry (
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PEI_NVME_CONTROLLER_PRIVATE_DATA *Private;
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EFI_PHYSICAL_ADDRESS DeviceAddress;
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//
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// Shadow this PEIM to run from memory
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//
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if (!EFI_ERROR (PeiServicesRegisterForShadow (FileHandle))) {
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return EFI_SUCCESS;
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}
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//
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// Locate the NVME host controller PPI
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//
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@@ -235,8 +228,6 @@ NvmExpressPeimEntry (
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return EFI_UNSUPPORTED;
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}
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IoMmuInit ();
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Controller = 0;
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MmioBase = 0;
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while (TRUE) {
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