[edk2-devel][Patch 5/7] MdeModulePkg/CapsuleRuntimeDxe: Introduce PCD to control this feature.
Xu, Wei6
wei6.xu at intel.com
Tue May 28 17:05:44 UTC 2019
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1852
Introduce PcdCapsuleInRamSupport to turn on/off Capsule In Ram feature.
Platform could choose to drop CapsulePei/CapsuleX64 and not to support
Capsule In Ram.
Cc: Jian J Wang <jian.j.wang at intel.com>
Cc: Hao A Wu <hao.a.wu at intel.com>
Cc: Chao B Zhang <chao.b.zhang at intel.com>
Signed-off-by: Wei6 Xu <wei6.xu at intel.com>
---
MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf | 1 +
MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleService.c | 10 +++++++++-
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf b/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf
index 338577e293..9da450722b 100644
--- a/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf
+++ b/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf
@@ -88,10 +88,11 @@
gEfiMdeModulePkgTokenSpaceGuid.PcdDxeIplSwitchToLongMode ## CONSUMES
[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxSizeNonPopulateCapsule ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxSizePopulateCapsule ## SOMETIMES_CONSUMES # Populate Image requires reset support.
+ gEfiMdeModulePkgTokenSpaceGuid.PcdCapsuleInRamSupport ## CONSUMES
[Pcd.X64]
gEfiMdeModulePkgTokenSpaceGuid.PcdCapsulePeiLongModeStackSize ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdUse1GPageTable ## SOMETIMES_CONSUMES
diff --git a/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleService.c b/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleService.c
index aaf819c4c6..53a1af44e2 100644
--- a/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleService.c
+++ b/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleService.c
@@ -2,11 +2,11 @@
Capsule Runtime Driver produces two UEFI capsule runtime services.
(UpdateCapsule, QueryCapsuleCapabilities)
It installs the Capsule Architectural Protocol defined in PI1.0a to signify
the capsule runtime services are ready.
-Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "CapsuleService.h"
@@ -69,10 +69,18 @@ UpdateCapsule (
BOOLEAN NeedReset;
BOOLEAN InitiateReset;
CHAR16 CapsuleVarName[30];
CHAR16 *TempVarName;
+ //
+ // Check if platform support Capsule In RAM or not.
+ // Platform could choose to drop CapsulePei/CapsuleX64 and do not support Capsule In RAM.
+ //
+ if (!PcdGetBool(PcdCapsuleInRamSupport)) {
+ return EFI_UNSUPPORTED;
+ }
+
//
// Capsule Count can't be less than one.
//
if (CapsuleCount < 1) {
return EFI_INVALID_PARAMETER;
--
2.16.2.windows.1
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#41526): https://edk2.groups.io/g/devel/message/41526
Mute This Topic: https://groups.io/mt/31824155/1813853
Group Owner: devel+owner at edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [edk2-devel-archive at redhat.com]
-=-=-=-=-=-=-=-=-=-=-=-
More information about the edk2-devel-archive
mailing list