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| author | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-07-01 00:40:46 +0000 |
|---|---|---|
| committer | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-07-01 00:40:46 +0000 |
| commit | 51a0c5f28c213b926aeb9bcfa532ea9db5a29a8f (patch) | |
| tree | 9b3e04b93258d108e1ea66fd62aa8b63d60520bc /MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystem.c | |
| parent | 7c636bd022d0ca308d1270d83bf3e782f88c88b6 (diff) | |
| download | edk2-51a0c5f28c213b926aeb9bcfa532ea9db5a29a8f.zip edk2-51a0c5f28c213b926aeb9bcfa532ea9db5a29a8f.tar.gz edk2-51a0c5f28c213b926aeb9bcfa532ea9db5a29a8f.tar.bz2 | |
MdeModulePkg: Add ResetSystemRuntimeDxe driver
Signed-off-by: jljusten
Reviewed-by: mdkinney
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11938 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystem.c')
| -rw-r--r-- | MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystem.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystem.c b/MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystem.c new file mode 100644 index 0000000..957cb0b --- /dev/null +++ b/MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystem.c @@ -0,0 +1,181 @@ +/** @file
+ Reset Architectural Protocol implementation
+
+ Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "ResetSystem.h"
+
+//
+// The handle onto which the Reset Architectural Protocol is installed
+//
+EFI_HANDLE mResetHandle = NULL;
+
+/**
+ The driver's entry point.
+
+ It initializes the Reset Architectural Protocol.
+
+ @param[in] ImageHandle The firmware allocated handle for the EFI image.
+ @param[in] SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The entry point is executed successfully.
+ @retval other Cannot install ResetArch protocol.
+
+**/
+EFI_STATUS
+EFIAPI
+InitializeResetSystem (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ // Make sure the Reset Architectural Protocol is not already installed in the system
+ //
+ ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiResetArchProtocolGuid);
+
+ //
+ // Hook the runtime service table
+ //
+ gRT->ResetSystem = ResetSystem;
+
+ //
+ // Now install the Reset RT AP on a new handle
+ //
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &mResetHandle,
+ &gEfiResetArchProtocolGuid,
+ NULL,
+ NULL
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ return Status;
+}
+
+/**
+ Reset system for capsule update.
+
+ @param[in] CapsuleDataPtr Pointer to the capsule block descriptors.
+
+**/
+VOID
+CapsuleReset (
+ IN UINTN CapsuleDataPtr
+ )
+{
+ //
+ // This implementation assumes that we're using a variable
+ // to indicate capsule updates.
+ //
+ gRT->SetVariable (
+ EFI_CAPSULE_VARIABLE_NAME,
+ &gEfiCapsuleVendorGuid,
+ EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS,
+ sizeof (UINTN),
+ (VOID *) &CapsuleDataPtr
+ );
+
+ EnterS3WithImmediateWake ();
+
+ //
+ // Should not return
+ //
+ CpuDeadLoop ();
+}
+
+/**
+ Put the system into S3 power state.
+**/
+VOID
+DoS3 (
+ VOID
+ )
+{
+ EnterS3WithImmediateWake ();
+
+ //
+ // Should not return
+ //
+ CpuDeadLoop ();
+}
+
+/**
+ Resets the entire platform.
+
+ @param[in] ResetType The type of reset to perform.
+ @param[in] ResetStatus The status code for the reset.
+ @param[in] DataSize The size, in bytes, of WatchdogData.
+ @param[in] ResetData For a ResetType of EfiResetCold, EfiResetWarm, or
+ EfiResetShutdown the data buffer starts with a Null-terminated
+ string, optionally followed by additional binary data.
+
+**/
+VOID
+EFIAPI
+ResetSystem (
+ IN EFI_RESET_TYPE ResetType,
+ IN EFI_STATUS ResetStatus,
+ IN UINTN DataSize,
+ IN VOID *ResetData OPTIONAL
+ )
+{
+ EFI_STATUS Status;
+ UINTN Size;
+ UINTN CapsuleDataPtr;
+
+ switch (ResetType) {
+ case EfiResetWarm:
+
+ //
+ //Check if there are pending capsules to process
+ //
+ Size = sizeof (CapsuleDataPtr);
+ Status = EfiGetVariable (
+ EFI_CAPSULE_VARIABLE_NAME,
+ &gEfiCapsuleVendorGuid,
+ NULL,
+ &Size,
+ (VOID *) &CapsuleDataPtr
+ );
+
+ if (Status == EFI_SUCCESS) {
+ //
+ //Process capsules across a system reset.
+ //
+ DoS3();
+ }
+
+ ResetWarm ();
+
+ break;
+
+ case EfiResetCold:
+ ResetCold ();
+ break;
+
+ case EfiResetShutdown:
+ ResetShutdown ();
+ return ;
+
+ default:
+ return ;
+ }
+
+ //
+ // Given we should have reset getting here would be bad
+ //
+ ASSERT (FALSE);
+}
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