OvmfPkg: remove gEfiLegacyBiosGuid

At this point, gEfiLegacyBiosGuid is unused; remove it.

This shrinks the list of resources scheduled for removal to:

- GUIDs (protocols or otherwise):
  - gEfiLegacy8259ProtocolGuid
  - gEfiLegacyBiosPlatformProtocolGuid
  - gEfiLegacyBiosProtocolGuid
  - gEfiLegacyInterruptProtocolGuid

- headers:
  - FrameworkDxe.h
  - Protocol/Legacy8259.h
  - Protocol/LegacyBios.h
  - Protocol/LegacyBiosPlatform.h
  - Protocol/LegacyInterrupt.h

- PCDs:
  - PcdEbdaReservedMemorySize
  - PcdEndOpromShadowAddress
  - PcdHighPmmMemorySize
  - PcdLegacyBiosCacheLegacyRegion
  - PcdLowPmmMemorySize
  - PcdOpromReservedMemoryBase
  - PcdOpromReservedMemorySize

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=4588
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20231110235820.644381-20-lersek@redhat.com>
Reviewed-by: Jiewen Yao <Jiewen.yao@intel.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Corvin Köhne <corvink@FreeBSD.org>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>

2 files changed, 0 insertions, 30 deletions

diff --git a/OvmfPkg/Csm/Include/Guid/LegacyBios.h b/OvmfPkg/Csm/Include/Guid/LegacyBios.h
deleted file mode 100644
index b196844d00..0000000000
--- a/OvmfPkg/Csm/Include/Guid/LegacyBios.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/** @file

-  Defines a Tag GUID used to mark a UEFI legacy BIOS thunk driver based

-  on legacy BIOS services and legacy option ROM. This Tag GUID must be installed on

-  the ImageHandle of any module that follows the EFI Driver Model and uses

-  the Int86() or FarCall() services of the Legacy Bios Protocol to produce

-  a standard UEFI I/O Protocol.

-

-Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>

-

-SPDX-License-Identifier: BSD-2-Clause-Patent

-

-**/

-

-#ifndef _LEGACY_BIOS_H_

-#define _LEGACY_BIOS_H_

-

-///

-/// The Global ID for the Legacy BIOS GUID that must be installed onto the ImageHandle

-/// of any module follows the EFI Driver Model and uses the Int86() or FarCall()

-/// services of the Legacy BIOS Protocol to produce a standard UEFI I/O Protocol.

-///

-#define EFI_LEGACY_BIOS_GUID \

-  { \

-    0x2e3044ac, 0x879f, 0x490f, {0x97, 0x60, 0xbb, 0xdf, 0xaf, 0x69, 0x5f, 0x50 } \

-  }

-

-extern EFI_GUID  gEfiLegacyBiosGuid;

-

-#endif

diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec
index de4b6fe5c0..060198e627 100644
--- a/OvmfPkg/OvmfPkg.dec
+++ b/OvmfPkg/OvmfPkg.dec
@@ -155,7 +155,6 @@
   gXenBusRootDeviceGuid                 = {0xa732241f, 0x383d, 0x4d9c, {0x8a, 0xe1, 0x8e, 0x09, 0x83, 0x75, 0x89, 0xd7}}

   gRootBridgesConnectedEventGroupGuid   = {0x24a2d66f, 0xeedd, 0x4086, {0x90, 0x42, 0xf2, 0x6e, 0x47, 0x97, 0xee, 0x69}}

   gMicrosoftVendorGuid                  = {0x77fa9abd, 0x0359, 0x4d32, {0xbd, 0x60, 0x28, 0xf4, 0xe7, 0x8f, 0x78, 0x4b}}

-  gEfiLegacyBiosGuid                    = {0x2E3044AC, 0x879F, 0x490F, {0x97, 0x60, 0xBB, 0xDF, 0xAF, 0x69, 0x5F, 0x50}}

   gQemuKernelLoaderFsMediaGuid          = {0x1428f772, 0xb64a, 0x441e, {0xb8, 0xc3, 0x9e, 0xbd, 0xd7, 0xf8, 0x93, 0xc7}}

   gGrubFileGuid                         = {0xb5ae312c, 0xbc8a, 0x43b1, {0x9c, 0x62, 0xeb, 0xb8, 0x26, 0xdd, 0x5d, 0x07}}

   gConfidentialComputingSecretGuid      = {0xadf956ad, 0xe98c, 0x484c, {0xae, 0x11, 0xb5, 0x1c, 0x7d, 0x33, 0x64, 0x47}}