4e4f13d245
Signed-off-by: li-elvin Reviewed-by: lgao4 git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12280 6f19259b-4bc3-4df7-8a09-765794883524
65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/** @file
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The X64 entrypoint is used to process capsule in long mode.
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Copyright (c) 2011, 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 of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Library/DebugLib.h>
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#include "CommonHeader.h"
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/**
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The X64 entrypoint is used to process capsule in long mode then
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return to 32-bit protected mode.
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@param EntrypointContext Pointer to the context of long mode.
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@param ReturnContext Pointer to the context of 32-bit protected mode.
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@retval This function should never return actually.
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**/
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EFI_STATUS
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EFIAPI
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_ModuleEntryPoint (
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SWITCH_32_TO_64_CONTEXT *EntrypointContext,
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SWITCH_64_TO_32_CONTEXT *ReturnContext
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)
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{
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EFI_STATUS Status;
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//
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// Call CapsuleDataCoalesce to process capsule.
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//
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Status = CapsuleDataCoalesce (
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NULL,
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(EFI_PHYSICAL_ADDRESS *) (UINTN) EntrypointContext->BlockListAddr,
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(VOID **) (UINTN) EntrypointContext->MemoryBase64Ptr,
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(UINTN *) (UINTN) EntrypointContext->MemorySize64Ptr
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);
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ReturnContext->ReturnStatus = Status;
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//
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// Finish to coalesce capsule, and return to 32-bit mode.
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//
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AsmDisablePaging64 (
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ReturnContext->ReturnCs,
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(UINT32) ReturnContext->ReturnEntryPoint,
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(UINT32) (UINTN) EntrypointContext,
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(UINT32) (UINTN) ReturnContext,
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(UINT32) (EntrypointContext->StackBufferBase + EntrypointContext->StackBufferLength)
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);
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//
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// Should never be here.
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//
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ASSERT (FALSE);
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return EFI_SUCCESS;
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} |