diff options
Diffstat (limited to 'OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c')
| -rw-r--r-- | OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c | 94 |
1 files changed, 92 insertions, 2 deletions
diff --git a/OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c b/OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c index 71be1dbefe..e7247ac262 100644 --- a/OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c +++ b/OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c @@ -666,8 +666,6 @@ Returns: //
// Connect RootBridge
//
- ConnectRootBridge ();
-
VarConout = BdsLibGetVariableAndSize (
VarConsoleOut,
&gEfiGlobalVariableGuid,
@@ -772,6 +770,90 @@ PciInitialization ( }
+EFI_STATUS
+EFIAPI
+ConnectRecursivelyIfPciMassStorage (
+ IN EFI_HANDLE Handle,
+ IN EFI_PCI_IO_PROTOCOL *Instance,
+ IN PCI_TYPE00 *PciHeader
+ )
+{
+ EFI_STATUS Status;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ CHAR16 *DevPathStr;
+
+ if (IS_CLASS1 (PciHeader, PCI_CLASS_MASS_STORAGE)) {
+ DevicePath = NULL;
+ Status = gBS->HandleProtocol (
+ Handle,
+ &gEfiDevicePathProtocolGuid,
+ (VOID*)&DevicePath
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Print Device Path
+ //
+ DevPathStr = DevicePathToStr (DevicePath);
+ DEBUG((
+ EFI_D_INFO,
+ "Found Mass Storage device: %s\n",
+ DevPathStr
+ ));
+ FreePool(DevPathStr);
+
+ Status = gBS->ConnectController (Handle, NULL, NULL, TRUE);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ }
+
+ return EFI_SUCCESS;
+}
+
+
+EFI_STATUS
+EFIAPI
+VisitingFileSystemInstance (
+ IN EFI_HANDLE Handle,
+ IN VOID *Instance,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+ STATIC BOOLEAN ConnectedToFileSystem = FALSE;
+
+ if (ConnectedToFileSystem) {
+ return EFI_ALREADY_STARTED;
+ }
+
+ Status = ConnectNvVarsToFileSystem (Handle);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ ConnectedToFileSystem = TRUE;
+ return EFI_SUCCESS;
+}
+
+
+VOID
+PlatformBdsRestoreNvVarsFromHardDisk (
+ )
+{
+ VisitAllPciInstances (ConnectRecursivelyIfPciMassStorage);
+ VisitAllInstancesOfProtocol (
+ &gEfiSimpleFileSystemProtocolGuid,
+ VisitingFileSystemInstance,
+ NULL
+ );
+
+}
+
+
VOID
PlatformBdsConnectSequence (
VOID
@@ -950,6 +1032,14 @@ Returns: DEBUG ((EFI_D_INFO, "PlatformBdsPolicyBehavior\n"));
+ ConnectRootBridge ();
+
+ //
+ // Try to restore variables from the hard disk early so
+ // they can be used for the other BDS connect operations.
+ //
+ PlatformBdsRestoreNvVarsFromHardDisk ();
+
//
// Init the time out value
//
|