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Replace mBS with gBS from UefiBootServicesTablePointer Lib to avoid library instance to cache too many copies of Boot Service Pointer. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5943 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
qwang12 2008-09-22 09:41:40 +00:00
parent 7f1eba7b99
commit 834a2e41fb
1 changed files with 12 additions and 10 deletions
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22
IntelFrameworkPkg/Library/DxeSmmDriverEntryPoint/DriverEntryPoint.c
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@ -26,8 +26,6 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <Library/DebugLib.h>
EFI_BOOT_SERVICES *mBS;
/**
This function returns the size, in bytes,
of the device path data structure specified by DevicePath.
@ -103,15 +101,19 @@ SmmAppendDevicePath (
Size2 = SmmGetDevicePathSize (SecondDevicePath);
Size = Size1 + Size2 - sizeof (EFI_DEVICE_PATH_PROTOCOL);
Status = mBS->AllocatePool (EfiBootServicesData, Size, (VOID **) &NewDevicePath);
Status = gBS->AllocatePool (EfiBootServicesData, Size, (VOID **) &NewDevicePath);
if (EFI_SUCCESS == Status) {
mBS->CopyMem ((VOID *) NewDevicePath, (VOID *) FirstDevicePath, Size1);
//
// CopyMem in gBS is used as this service should always be ready. We didn't choose
// to use a BaseMemoryLib function as such library instance may have constructor.
//
gBS->CopyMem ((VOID *) NewDevicePath, (VOID *) FirstDevicePath, Size1);
//
// Over write Src1 EndNode and do the copy
//
DevicePath2 = (EFI_DEVICE_PATH_PROTOCOL *) ((CHAR8 *) NewDevicePath + (Size1 - sizeof (EFI_DEVICE_PATH_PROTOCOL)));
mBS->CopyMem ((VOID *) DevicePath2, (VOID *) SecondDevicePath, Size2);
gBS->CopyMem ((VOID *) DevicePath2, (VOID *) SecondDevicePath, Size2);
}
return NewDevicePath;
@ -171,12 +173,12 @@ _ModuleEntryPoint (
//
// Cache a pointer to the Boot Services Table
//
mBS = SystemTable->BootServices;
gBS = SystemTable->BootServices;
//
// Retrieve the Loaded Image Protocol
//
Status = mBS->HandleProtocol (
Status = gBS->HandleProtocol (
ImageHandle,
&gEfiLoadedImageProtocolGuid,
(VOID*)&LoadedImage
@ -186,7 +188,7 @@ _ModuleEntryPoint (
//
// Retrieve SMM Base Protocol
//
Status = mBS->LocateProtocol (
Status = gBS->LocateProtocol (
&gEfiSmmBaseProtocolGuid,
NULL,
(VOID **) &SmmBase
@ -205,7 +207,7 @@ _ModuleEntryPoint (
//
// Retrieve the Device Path Protocol from the DeviceHandle tha this driver was loaded from
//
Status = mBS->HandleProtocol (
Status = gBS->HandleProtocol (
LoadedImage->DeviceHandle,
&gEfiDevicePathProtocolGuid,
(VOID*)&ImageDevicePath
@ -235,7 +237,7 @@ _ModuleEntryPoint (
// Optionally install the unload handler
//
if (_gDriverUnloadImageCount > 0) {
Status = mBS->HandleProtocol (
Status = gBS->HandleProtocol (
ImageHandle,
&gEfiLoadedImageProtocolGuid,
(VOID **)&LoadedImage