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From: Jian J Wang <jian.j.wang@intel.com>
To: edk2-devel@lists.01.org
Cc: Leif Lindholm <leif.lindholm@linaro.org>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Jiewen Yao <jiewen.yao@intel.com>
Subject: [PATCH v4 07/11] ArmPkg/ArmExceptionLib: Add implementation of new API
Date: Wed,  6 Dec 2017 16:50:01 +0800	[thread overview]
Message-ID: <20171206085005.14552-8-jian.j.wang@intel.com> (raw)
In-Reply-To: <20171206085005.14552-1-jian.j.wang@intel.com>

> v4:
>    Change CPU_EXCEPTION_INIT_DATA_EX to CPU_EXCEPTION_INIT_DATA

> v3:
>    Newly added

This patch add implementation of following new API introduced into
CpuExceptionHandlerLib. Since this lib hasn't support Stack Guard
and stack switch, the new method just calls original
InitializeCpuExceptionHandlers.

  EFI_STATUS
  EFIAPI
  InitializeCpuExceptionHandlersEx (
    IN EFI_VECTOR_HANDOFF_INFO            *VectorInfo OPTIONAL,
    IN CPU_EXCEPTION_INIT_DATA            *InitDataEx OPTIONAL
    );

Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
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>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
 ArmPkg/Library/ArmExceptionLib/ArmExceptionLib.c | 33 ++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/ArmPkg/Library/ArmExceptionLib/ArmExceptionLib.c b/ArmPkg/Library/ArmExceptionLib/ArmExceptionLib.c
index e8ea1f159d..cebb26a4ce 100644
--- a/ArmPkg/Library/ArmExceptionLib/ArmExceptionLib.c
+++ b/ArmPkg/Library/ArmExceptionLib/ArmExceptionLib.c
@@ -320,3 +320,36 @@ CommonCExceptionHandler(
 
   DefaultExceptionHandler(ExceptionType, SystemContext);
 }
+
+/**
+  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 could be done by calling InitializeCpuExceptionHandlers() directly
+  in this method besides the extra works.
+
+  InitData 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]  InitData      Pointer to data optional for extra initializations
+                            of exception.
+
+  @retval EFI_SUCCESS             The exceptions have been successfully
+                                  initialized.
+  @retval EFI_INVALID_PARAMETER   VectorInfo or InitData contains invalid
+                                  content.
+
+**/
+EFI_STATUS
+EFIAPI
+InitializeCpuExceptionHandlersEx (
+  IN EFI_VECTOR_HANDOFF_INFO            *VectorInfo OPTIONAL,
+  IN CPU_EXCEPTION_INIT_DATA            *InitData OPTIONAL
+  )
+{
+  return InitializeCpuExceptionHandlers (VectorInfo);
+}
+
-- 
2.15.1.windows.2



  parent reply	other threads:[~2017-12-06  8:45 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-06  8:49 [PATCH v4 00/11] Implement stack guard feature Jian J Wang
2017-12-06  8:49 ` [PATCH v4 01/11] MdeModulePkg/metafile: Add PCD PcdCpuStackGuard Jian J Wang
2017-12-06  8:49 ` [PATCH v4 02/11] UefiCpuPkg/UefiCpuPkg.dec: Add two new PCDs for stack switch Jian J Wang
2017-12-06  8:49 ` [PATCH v4 03/11] MdeModulePkg/CpuExceptionHandlerLib.h: Add a new API InitializeCpuExceptionHandlersEx Jian J Wang
2017-12-06  8:49 ` [PATCH v4 04/11] MdePkg/BaseLib: Add stack switch related definitions for IA32 Jian J Wang
2017-12-06  8:49 ` [PATCH v4 05/11] UefiCpuPkg/CpuExceptionHandlerLib: Add stack switch support Jian J Wang
2017-12-06  8:50 ` [PATCH v4 06/11] MdeModulePkg/CpuExceptionHandlerLibNull: Add new API implementation Jian J Wang
2017-12-06  8:50 ` Jian J Wang [this message]
2017-12-06  8:50 ` [PATCH v4 08/11] UefiCpuPkg/MpLib: Add GDTR, IDTR and TR in saved AP data Jian J Wang
2017-12-06  8:50 ` [PATCH v4 09/11] UefiCpuPkg/CpuDxe: Initialize stack switch for MP Jian J Wang
2017-12-06  8:50 ` [PATCH v4 10/11] MdeModulePkg/Core/Dxe: Call new API InitializeCpuExceptionHandlersEx instead Jian J Wang
2017-12-06  8:50 ` [PATCH v4 11/11] MdeModulePkg/DxeIpl: Enable paging for Stack Guard Jian J Wang
2017-12-07  8:17 ` [PATCH v4 00/11] Implement stack guard feature Yao, Jiewen
2017-12-07  8:24   ` Wang, Jian J

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