diff options
Diffstat (limited to 'edk2/IntelFrameworkModulePkg/Universal/BdsDxe/BdsEntry.c')
| -rw-r--r-- | edk2/IntelFrameworkModulePkg/Universal/BdsDxe/BdsEntry.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/edk2/IntelFrameworkModulePkg/Universal/BdsDxe/BdsEntry.c b/edk2/IntelFrameworkModulePkg/Universal/BdsDxe/BdsEntry.c index 7949d0995..a91962537 100644 --- a/edk2/IntelFrameworkModulePkg/Universal/BdsDxe/BdsEntry.c +++ b/edk2/IntelFrameworkModulePkg/Universal/BdsDxe/BdsEntry.c @@ -72,6 +72,24 @@ BdsInitialize ( return Status;
}
+
+/**
+ An empty function to pass error checking of CreateEventEx ().
+
+ @param Event Event whose notification function is being invoked.
+ @param Context Pointer to the notification function's context,
+ which is implementation-dependent.
+
+**/
+VOID
+EFIAPI
+BdsEmptyCallbackFunction (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+}
+
/**
This function attempts to boot for the boot order specified
@@ -93,12 +111,14 @@ BdsBootDeviceSelect ( CHAR16 Buffer[20];
BOOLEAN BootNextExist;
LIST_ENTRY *LinkBootNext;
+ EFI_EVENT ConnectConInEvent;
//
// Got the latest boot option
//
BootNextExist = FALSE;
LinkBootNext = NULL;
+ ConnectConInEvent = NULL;
InitializeListHead (&BootLists);
//
@@ -106,6 +126,23 @@ BdsBootDeviceSelect ( //
ZeroMem (Buffer, sizeof (Buffer));
+ //
+ // Create Event to signal ConIn connection request
+ //
+ if (PcdGetBool (PcdConInConnectOnDemand)) {
+ Status = gBS->CreateEventEx (
+ EVT_NOTIFY_SIGNAL,
+ TPL_CALLBACK,
+ BdsEmptyCallbackFunction,
+ NULL,
+ &gConnectConInEventGuid,
+ &ConnectConInEvent
+ );
+ if (EFI_ERROR(Status)) {
+ ConnectConInEvent = NULL;
+ }
+ }
+
if (mBootNext != NULL) {
//
// Indicate we have the boot next variable, so this time
@@ -172,6 +209,13 @@ BdsBootDeviceSelect ( //
if (Link == &BootLists) {
//
+ // When LazyConIn enabled, signal connect ConIn event before enter UI
+ //
+ if (PcdGetBool (PcdConInConnectOnDemand) && ConnectConInEvent != NULL) {
+ gBS->SignalEvent (ConnectConInEvent);
+ }
+
+ //
// There are two ways to enter here:
// 1. There is no active boot option, give user chance to
// add new boot option
@@ -248,6 +292,14 @@ BdsBootDeviceSelect ( // Boot success, then stop process the boot order, and
// present the boot manager menu, front page
//
+
+ //
+ // When LazyConIn enabled, signal connect ConIn Event before enter UI
+ //
+ if (PcdGetBool (PcdConInConnectOnDemand) && ConnectConInEvent != NULL) {
+ gBS->SignalEvent (ConnectConInEvent);
+ }
+
Timeout = 0xffff;
PlatformBdsEnterFrontPage (Timeout, FALSE);
|