This feature is aimed to allow OS make use of the HII database during runtime.
In this case, the contents of the HII Database is exported to a buffer.
The pointer to the buffer is placed in the EFI System Configuration Table,
where it can be retrieved by an OS application.
Cc: Liming Gao <liming....@intel.com>
Cc: Eric Dong <eric.d...@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan...@intel.com>
---
MdeModulePkg/Universal/HiiDatabaseDxe/Database.c | 102 ++++++++++++++++++++-
.../Universal/HiiDatabaseDxe/HiiDatabase.h | 5 +
.../Universal/HiiDatabaseDxe/HiiDatabaseEntry.c | 51 +++++++++++
3 files changed, 157 insertions(+), 1 deletion(-)
diff --git a/MdeModulePkg/Universal/HiiDatabaseDxe/Database.c
b/MdeModulePkg/Universal/HiiDatabaseDxe/Database.c
index ec56795..011e712 100644
--- a/MdeModulePkg/Universal/HiiDatabaseDxe/Database.c
+++ b/MdeModulePkg/Universal/HiiDatabaseDxe/Database.c
@@ -2773,10 +2773,96 @@ ExportPackageList (
*UsedSize += ResultSize + sizeof (EFI_HII_PACKAGE_HEADER);
return EFI_SUCCESS;
}
+/**
+This is an internal function,mainly use to get and update configuration
settings information.
+
+@param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
+@param NewPackage Indaicate whether add the packages in the package list
to the database.
+
+@retval EFI_SUCCESS Get the information successfully.
+
+**/
+EFI_STATUS
+HiiGetConfigurationSetting(
+ IN CONST EFI_HII_DATABASE_PROTOCOL *This,
+ IN BOOLEAN NewPackage
+ )
+{
+ EFI_STATUS Status;
+ HII_DATABASE_PRIVATE_DATA *Private;
+ EFI_HII_PACKAGE_LIST_HEADER *DatabaseInfo;
+ EFI_STRING ConfigAltResp;
+ UINTN DatabaseInfoSize;
+ UINTN ConfigLen;
+
+ DatabaseInfo = NULL;
+ ConfigAltResp = NULL;
+ DatabaseInfoSize = 0;
+ ConfigLen = 0;
+
+ Private = HII_DATABASE_DATABASE_PRIVATE_DATA_FROM_THIS (This);
+
+ //
+ // Get the length of the buffer that is required for the exported data.
+ //
+
+ Status = HiiExportPackageLists(This, NULL, &DatabaseInfoSize, DatabaseInfo);
+ if (Status == EFI_BUFFER_TOO_SMALL) {
+ if (gRTDatabaseInfoBuffer == NULL){
+ gRTDatabaseInfoBuffer = AllocateRuntimePool (DatabaseInfoSize);
+ } else if (DatabaseInfoSize != gDatabaseInfoSize ) {
+ if (NewPackage){
+ gBS->InstallConfigurationTable (&gEfiHiiDatabaseProtocolGuid, NULL);
+ }
+ gRTDatabaseInfoBuffer =
ReallocateRuntimePool(gDatabaseInfoSize,DatabaseInfoSize,gRTDatabaseInfoBuffer);
+ }
+ ASSERT (gRTDatabaseInfoBuffer != NULL);
+
+ gDatabaseInfoSize = DatabaseInfoSize;
+
+ //
+ //install it to configuration table.
+ //
+ if (NewPackage){
+ gBS->InstallConfigurationTable (&gEfiHiiDatabaseProtocolGuid,
gRTDatabaseInfoBuffer);
+ }
+ }
+
+ //
+ // Get ConfigResp string
+ //
+ Status =
HiiConfigRoutingExportConfig(&Private->ConfigRouting,&ConfigAltResp);
+ if (!EFI_ERROR (Status)){
+ ConfigLen = StrLen(ConfigAltResp);
+ if (gRTConfigRespBuffer == NULL){
+ gRTConfigRespBuffer = AllocateRuntimePool ((ConfigLen + 1) * sizeof
(CHAR16));
+ } else if (ConfigLen != gConfigLen ){
+ if (NewPackage){
+ gBS->InstallConfigurationTable (&gEfiHiiConfigRoutingProtocolGuid,
NULL);
+ }
+ gRTConfigRespBuffer = ReallocateRuntimePool((gConfigLen + 1) * sizeof
(CHAR16),(ConfigLen + 1) * sizeof (CHAR16),gRTConfigRespBuffer);
+ }
+ ASSERT (gRTConfigRespBuffer != NULL);
+
+ gConfigLen = ConfigLen;
+
+ //
+ //install it to configuration table.
+ //
+ if (NewPackage){
+ gBS->InstallConfigurationTable (&gEfiHiiConfigRoutingProtocolGuid,
gRTConfigRespBuffer);
+ }
+
+ FreePool(ConfigAltResp);
+ }
+
+ return EFI_SUCCESS;
+
+}
/**
This function adds the packages in the package list to the database and
returns a handle. If there is a
EFI_DEVICE_PATH_PROTOCOL associated with the DriverHandle, then this
function will
create a package of type EFI_PACKAGE_TYPE_DEVICE_PATH and add it to the
package list.
@@ -2865,10 +2951,18 @@ HiiNewPackageList (
Status = AddDevicePathPackage (Private, EFI_HII_DATABASE_NOTIFY_NEW_PACK,
DevicePath, DatabaseRecord);
ASSERT_EFI_ERROR (Status);
}
*Handle = DatabaseRecord->Handle;
+
+ //
+ // Get the configuration setting info.
+ // And install it to configuration table.
+ //
+
+ HiiGetConfigurationSetting(This,TRUE);
+
return EFI_SUCCESS;
}
/**
@@ -3077,11 +3171,17 @@ HiiUpdatePackageList (
}
//
// Add all of the packages within the new package list
//
- return AddPackages (Private, EFI_HII_DATABASE_NOTIFY_ADD_PACK,
PackageList, Node);
+ Status = AddPackages (Private, EFI_HII_DATABASE_NOTIFY_ADD_PACK,
PackageList, Node);
+ //
+ // Update the the configuration setting info
+ //
+ HiiGetConfigurationSetting(This,FALSE);
+
+ return Status;
}
}
return EFI_NOT_FOUND;
}
diff --git a/MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabase.h
b/MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabase.h
index bb0090a..1be508b 100644
--- a/MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabase.h
+++ b/MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabase.h
@@ -2017,6 +2017,11 @@ GetSupportedLanguages (
//
// Global variables
//
extern EFI_EVENT gHiiKeyboardLayoutChanged;
+extern EFI_HII_PACKAGE_LIST_HEADER *gRTDatabaseInfoBuffer;
+extern EFI_STRING gRTConfigRespBuffer;
+extern UINTN gDatabaseInfoSize;
+extern UINTN gConfigLen;
+
#endif
diff --git a/MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabaseEntry.c
b/MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabaseEntry.c
index 6448c97..c35655c 100644
--- a/MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabaseEntry.c
+++ b/MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabaseEntry.c
@@ -18,10 +18,16 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER
EXPRESS OR IMPLIED.
//
// Global variables
//
EFI_EVENT gHiiKeyboardLayoutChanged;
+EFI_EVENT mExitBootServicesEvent = (EFI_EVENT)NULL;
+
+EFI_HII_PACKAGE_LIST_HEADER *gRTDatabaseInfoBuffer = NULL;
+EFI_STRING gRTConfigRespBuffer = NULL;
+UINTN gDatabaseInfoSize = 0;
+UINTN gConfigLen = 0;
HII_DATABASE_PRIVATE_DATA mPrivate = {
HII_DATABASE_PRIVATE_DATA_SIGNATURE,
{
(LIST_ENTRY *) NULL,
@@ -122,10 +128,43 @@ KeyboardLayoutChangeNullEvent (
{
return;
}
/**
+ Callback function for ExitBootServices.
+
+ @param Event Event whose notification function is being
invoked.
+ @param Context The pointer to the notification function's
context,
+ which is implementation-dependent.
+
+**/
+VOID
+EFIAPI
+ExitBootServicesCallback (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ //export the contents of the HII Database and the current configuration into
runtime buffer
+ //
+ Status = HiiExportPackageLists(&mPrivate.HiiDatabase, NULL,
&gDatabaseInfoSize, gRTDatabaseInfoBuffer);
+ ASSERT_EFI_ERROR (Status);
+
+ Status =
HiiConfigRoutingExportConfig(&mPrivate.ConfigRouting,&gRTConfigRespBuffer);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Install the package list and configuration date to configuration table.
+ //
+ gBS->InstallConfigurationTable (&gEfiHiiDatabaseProtocolGuid,
gRTDatabaseInfoBuffer);
+ gBS->InstallConfigurationTable (&gEfiHiiConfigRoutingProtocolGuid,
gRTConfigRespBuffer);
+}
+
+/**
Initialize HII Database.
@param ImageHandle The image handle.
@param SystemTable The system table.
@@ -177,10 +216,22 @@ InitializeHiiDatabase (
);
if (EFI_ERROR (Status)) {
return Status;
}
+ //
+ // Create a event with EVT_SIGNAL_EXIT_BOOT_SERVICES type.
+ //
+ Status = gBS->CreateEvent (
+ EVT_SIGNAL_EXIT_BOOT_SERVICES,
+ TPL_CALLBACK,
+ ExitBootServicesCallback,
+ NULL,
+ &mExitBootServicesEvent
+ );
+ ASSERT_EFI_ERROR (Status);
+
Handle = NULL;
Status = gBS->InstallMultipleProtocolInterfaces (
&Handle,
&gEfiHiiFontProtocolGuid,
&mPrivate.HiiFont,
--
1.9.5.msysgit.1
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