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[edk2,7/9] IntelFrameworkModulePkg/GenericBdsLib: remove AcpiS3->S3Save() call

Message ID 1435367296-28493-8-git-send-email-lersek@redhat.com
State New
Headers show

Commit Message

Laszlo Ersek June 27, 2015, 1:08 a.m. UTC 
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>

The AcpiS3->S3Save() call needs to occur before the end-of-DXE event
is signalled. The end-of-DXE event needs to be signalled prior to
invoking any UEFI drivers, applications, or connecting consoles.

This means the call to S3Save() that occurs in BdsLibBootViaBootOption()
violates the ordering constraints, and should be removed. Since it is
the responsibility of the platform BDS to signal the end-of-DXE event,
it should also perform the AcpiS3->S3Save() call at an appropriate time.

Commit message update from Laszlo Ersek <lersek@redhat.com>:

Following the idea of Jiewen Yao
<http://thread.gmane.org/gmane.comp.bios.tianocore.devel/16088/focus=16146>,
the S3 system info will now be collected directly in response to
End-of-Dxe, and AcpiS3->S3Save() calls will be completely eliminated.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Yao, Jiewen <Jiewen.Yao@intel.com>
[lersek@redhat.com: updated commit message]
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Yao, Jiewen <Jiewen.Yao@intel.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
---
 IntelFrameworkModulePkg/Library/GenericBdsLib/GenericBdsLib.inf |  1 -
 IntelFrameworkModulePkg/Library/GenericBdsLib/InternalBdsLib.h  |  1 -
 IntelFrameworkModulePkg/Library/GenericBdsLib/BdsBoot.c         | 10 ----------
 3 files changed, 12 deletions(-)
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Patch

diff --git a/IntelFrameworkModulePkg/Library/GenericBdsLib/GenericBdsLib.inf b/IntelFrameworkModulePkg/Library/GenericBdsLib/GenericBdsLib.inf
index 5381e33..5a138a9 100644
--- a/IntelFrameworkModulePkg/Library/GenericBdsLib/GenericBdsLib.inf
+++ b/IntelFrameworkModulePkg/Library/GenericBdsLib/GenericBdsLib.inf
@@ -119,7 +119,6 @@  [Protocols]
   gEfiLegacyBiosProtocolGuid                    ## SOMETIMES_CONSUMES
   gEfiCpuArchProtocolGuid                       ## CONSUMES
   gEfiDevicePathProtocolGuid                    ## CONSUMES
-  gEfiAcpiS3SaveProtocolGuid                    ## SOMETIMES_CONSUMES
   gEfiGraphicsOutputProtocolGuid                ## SOMETIMES_CONSUMES
   gEfiUgaDrawProtocolGuid |gEfiMdePkgTokenSpaceGuid.PcdUgaConsumeSupport ## SOMETIMES_CONSUMES
   gEfiOEMBadgingProtocolGuid                    ## SOMETIMES_CONSUMES
diff --git a/IntelFrameworkModulePkg/Library/GenericBdsLib/InternalBdsLib.h b/IntelFrameworkModulePkg/Library/GenericBdsLib/InternalBdsLib.h
index c32579b..7201d8a 100644
--- a/IntelFrameworkModulePkg/Library/GenericBdsLib/InternalBdsLib.h
+++ b/IntelFrameworkModulePkg/Library/GenericBdsLib/InternalBdsLib.h
@@ -33,7 +33,6 @@  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include <Protocol/SimpleNetwork.h>
 #include <Protocol/FirmwareVolume2.h>
 #include <Protocol/PciIo.h>
-#include <Protocol/AcpiS3Save.h>
 #include <Protocol/OEMBadging.h>
 #include <Protocol/GraphicsOutput.h>
 #include <Protocol/UgaDraw.h>
diff --git a/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsBoot.c b/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsBoot.c
index e02a710..4b7eca7 100644
--- a/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsBoot.c
+++ b/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsBoot.c
@@ -2233,7 +2233,6 @@  BdsLibBootViaBootOption (
   EFI_DEVICE_PATH_PROTOCOL  *FilePath;
   EFI_LOADED_IMAGE_PROTOCOL *ImageInfo;
   EFI_DEVICE_PATH_PROTOCOL  *WorkingDevicePath;
-  EFI_ACPI_S3_SAVE_PROTOCOL *AcpiS3Save;
   LIST_ENTRY                TempBootLists;
   EFI_BOOT_LOGO_PROTOCOL    *BootLogo;
 
@@ -2241,15 +2240,6 @@  BdsLibBootViaBootOption (
   *ExitData     = NULL;
 
   //
-  // Notes: this code can be remove after the s3 script table
-  // hook on the event EVT_SIGNAL_READY_TO_BOOT or
-  // EVT_SIGNAL_LEGACY_BOOT
-  //
-  Status = gBS->LocateProtocol (&gEfiAcpiS3SaveProtocolGuid, NULL, (VOID **) &AcpiS3Save);
-  if (!EFI_ERROR (Status)) {
-    AcpiS3Save->S3Save (AcpiS3Save, NULL);
-  }
-  //
   // If it's Device Path that starts with a hard drive path, append it with the front part to compose a
   // full device path
   //