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d2a160304e
This instance handles Microsoft UX capsule, UEFI defined FMP capsule. This instance should not assume any capsule image format. Cc: Feng Tian <feng.tian@intel.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Cc: Liming Gao <liming.gao@intel.com> Cc: Chao Zhang <chao.b.zhang@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> Reviewed-by: Michael Kinney <michael.d.kinney@intel.com> Tested-by: Michael Kinney <michael.d.kinney@intel.com>
113 lines
3.1 KiB
C
113 lines
3.1 KiB
C
/** @file
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Capsule library runtime support.
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Copyright (c) 2016, 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 <PiDxe.h>
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#include <Guid/FmpCapsule.h>
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#include <Guid/SystemResourceTable.h>
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#include <Guid/EventGroup.h>
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/DxeServicesTableLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Library/MemoryAllocationLib.h>
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extern EFI_SYSTEM_RESOURCE_TABLE *mEsrtTable;
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extern BOOLEAN mIsVirtualAddrConverted;
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/**
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Convert EsrtTable physical address to virtual address.
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@param[in] Event Event whose notification function is being invoked.
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@param[in] Context The pointer to the notification function's context, which
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is implementation-dependent.
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**/
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VOID
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EFIAPI
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DxeCapsuleLibVirtualAddressChangeEvent (
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IN EFI_EVENT Event,
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IN VOID *Context
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)
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{
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UINTN Index;
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EFI_CONFIGURATION_TABLE *ConfigEntry;
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//
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// Get Esrt table first
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//
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ConfigEntry = gST->ConfigurationTable;
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for (Index = 0; Index < gST->NumberOfTableEntries; Index++) {
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if (CompareGuid(&gEfiSystemResourceTableGuid, &ConfigEntry->VendorGuid)) {
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break;
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}
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ConfigEntry++;
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}
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//
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// If no Esrt table installed in Configure Table
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//
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if (Index < gST->NumberOfTableEntries) {
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//
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// Search Esrt to check given capsule is qualified
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//
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mEsrtTable = (EFI_SYSTEM_RESOURCE_TABLE *) ConfigEntry->VendorTable;
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//
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// Update protocol pointer to Esrt Table.
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//
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gRT->ConvertPointer (0x00, (VOID**) &(mEsrtTable));
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}
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mIsVirtualAddrConverted = TRUE;
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}
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/**
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The constructor function hook VirtualAddressChange event to use ESRT table as capsule routing table.
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@param ImageHandle The firmware allocated handle for the EFI image.
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@param SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The constructor successfully .
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**/
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EFI_STATUS
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EFIAPI
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DxeRuntimeCapsuleLibConstructor (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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EFI_EVENT Event;
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//
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// Make sure we can handle virtual address changes.
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//
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Event = NULL;
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Status = gBS->CreateEventEx (
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EVT_NOTIFY_SIGNAL,
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TPL_NOTIFY,
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DxeCapsuleLibVirtualAddressChangeEvent,
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NULL,
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&gEfiEventVirtualAddressChangeGuid,
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&Event
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);
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ASSERT_EFI_ERROR (Status);
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return EFI_SUCCESS;
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}
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