From: Jian J Wang <jian.j.wang@intel.com>
To: edk2-devel@lists.01.org
Cc: Star Zeng <star.zeng@intel.com>, Eric Dong <eric.dong@intel.com>,
Jiewen Yao <jiewen.yao@intel.com>
Subject: [PATCH v3 06/11] MdeModulePkg/CpuExceptionHandlerLibNull: Add new API implementation
Date: Fri, 1 Dec 2017 10:37:23 +0800 [thread overview]
Message-ID: <20171201023728.4680-7-jian.j.wang@intel.com> (raw)
In-Reply-To: <20171201023728.4680-1-jian.j.wang@intel.com>
> v3:
> Newly added
This patch add implementation of new API InitializeCpuExceptionHandlersEx
introduced into CpuExceptionHandlerLib on behalf of Stack Guard feature.
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Suggested-by: Ayellet Wolman <ayellet.wolman@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
---
.../CpuExceptionHandlerLibNull.c | 34 ++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/MdeModulePkg/Library/CpuExceptionHandlerLibNull/CpuExceptionHandlerLibNull.c b/MdeModulePkg/Library/CpuExceptionHandlerLibNull/CpuExceptionHandlerLibNull.c
index cbe4768633..6ea71972aa 100644
--- a/MdeModulePkg/Library/CpuExceptionHandlerLibNull/CpuExceptionHandlerLibNull.c
+++ b/MdeModulePkg/Library/CpuExceptionHandlerLibNull/CpuExceptionHandlerLibNull.c
@@ -111,3 +111,37 @@ DumpCpuContext (
)
{
}
+
+/**
+ Initializes all CPU exceptions entries with optional extra initializations.
+
+ By default, this method should include all functionalities implemented by
+ InitializeCpuExceptionHandlers(), plus extra initialization works, if any.
+ This is could be done by calling InitializeCpuExceptionHandlers() directly
+ in this method besides the extra works.
+
+ InitDataEx is optional and its use and content are processor arch dependent.
+ The typical usage of it is to convey resources which have to be reserved
+ elsewhere and are necessary for the extra initializations of exception.
+
+ @param[in] VectorInfo Pointer to reserved vector list.
+ @param[in] InitDataEx Pointer to data optional for extra initializations
+ of exception.
+
+ @retval EFI_SUCCESS The exceptions have been successfully
+ initialized.
+ @retval EFI_INVALID_PARAMETER VectorInfo or InitDataEx contains invalid
+ content.
+ @retval EFI_UNSUPPORTED This function is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+InitializeCpuExceptionHandlersEx (
+ IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL,
+ IN CPU_EXCEPTION_INIT_DATA_EX *InitDataEx OPTIONAL
+ )
+{
+ return InitializeCpuExceptionHandlers (VectorInfo);
+}
+
--
2.14.1.windows.1
next prev parent reply other threads:[~2017-12-01 2:33 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-01 2:37 [PATCH v3 00/11] Implement stack guard feature Jian J Wang
2017-12-01 2:37 ` [PATCH v3 01/11] MdeModulePkg/metafile: Add PCD PcdCpuStackGuard Jian J Wang
2017-12-01 2:37 ` [PATCH v3 02/11] UefiCpuPkg/UefiCpuPkg.dec: Add two new PCDs for stack switch Jian J Wang
2017-12-01 2:37 ` [PATCH v3 03/11] MdeModulePkg/CpuExceptionHandlerLib.h: Add a new API InitializeCpuExceptionHandlersEx Jian J Wang
2017-12-01 2:37 ` [PATCH v3 04/11] MdePkg/BaseLib: Add stack switch related definitions for IA32 Jian J Wang
2017-12-01 2:37 ` [PATCH v3 05/11] UefiCpuPkg/CpuExceptionHandlerLib: Add stack switch support Jian J Wang
2017-12-01 2:37 ` Jian J Wang [this message]
2017-12-01 2:37 ` [PATCH v3 07/11] ArmPkg/ArmExceptionLib: Add implementation of new API Jian J Wang
2017-12-04 13:58 ` Ard Biesheuvel
2017-12-05 0:02 ` Wang, Jian J
2017-12-01 2:37 ` [PATCH v3 08/11] UefiCpuPkg/MpLib: Add GDTR, IDTR and TR in saved AP data Jian J Wang
2017-12-01 2:37 ` [PATCH v3 09/11] UefiCpuPkg/CpuDxe: Initialize stack switch for MP Jian J Wang
2017-12-01 2:37 ` [PATCH v3 10/11] MdeModulePkg/Core/Dxe: Call new API InitializeCpuExceptionHandlersEx instead Jian J Wang
2017-12-01 2:37 ` [PATCH v3 11/11] MdeModulePkg/DxeIpl: Enable paging for Stack Guard Jian J Wang
2017-12-05 2:03 ` [PATCH v3 00/11] Implement stack guard feature Yao, Jiewen
2017-12-05 6:55 ` Wang, Jian J
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