From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mx.groups.io with SMTP id smtpd.web10.2481.1589275858190807129 for ; Tue, 12 May 2020 02:30:58 -0700 Authentication-Results: mx.groups.io; dkim=missing; spf=pass (domain: arm.com, ip: 217.140.110.172, mailfrom: ard.biesheuvel@arm.com) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B2C491FB; Tue, 12 May 2020 02:30:56 -0700 (PDT) Received: from [192.168.1.81] (unknown [10.37.8.255]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 52CE33F305; Tue, 12 May 2020 02:30:53 -0700 (PDT) Subject: Re: [PATCH v2 00/12] Add the VariablePolicy feature To: michael.kubacki@outlook.com, devel@edk2.groups.io Cc: Jiewen Yao , Chao Zhang , Jian J Wang , Hao A Wu , Liming Gao , Jordan Justen , Laszlo Ersek , Andrew Fish , Ray Ni , Bret Barkelew References: From: "Ard Biesheuvel" Message-ID: Date: Tue, 12 May 2020 11:30:50 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit (+ Bret) On 5/12/20 8:46 AM, michael.kubacki@outlook.com wrote: > From: Michael Kubacki > > REF:https://bugzilla.tianocore.org/show_bug.cgi?id=2522 > > The 12 patches in this series add the VariablePolicy feature to the core, > deprecate Edk2VarLock (while adding a compatibility layer to reduce code > churn), and integrate the VariablePolicy libraries and protocols into > Variable Services. > > Since the integration requires multiple changes, including adding libraries, > a protocol, an SMI communication handler, and VariableServices integration, > the patches are broken up by individual library additions and then a final > integration. Security-sensitive changes like bypassing Authenticated > Variable enforcement are also broken out into individual patches so that > attention can be called directly to them. > As noted by Bret, this series is affected by the recent PI 1.7 errata A changes, which superseded the MM communicate protocol with MM communicate 2. I will try to have my resulting changes in asap, but I suppose this series will need some minor rework. (MM communicate2 just takes an extra VirtualAddress argument, which is simply the virtual address of the buffer whose address is passed by PA only in MM communicate) > Platform porting instructions are described in this wiki entry: > https://github.com/tianocore/tianocore.github.io/wiki/VariablePolicy-Protocol---Enhanced-Method-for-Managing-Variables#platform-porting > > Discussion of the feature can be found in multiple places throughout > the last year on the RFC channel, staging branches, and in devel. > > Most recently, this subject was discussed in this thread: > https://edk2.groups.io/g/devel/message/53712 > (the code branches shared in that discussion are now out of date, but the > whitepapers and discussion are relevant). > > Cc: Jiewen Yao > Cc: Chao Zhang > Cc: Jian J Wang > Cc: Hao A Wu > Cc: Liming Gao > Cc: Jordan Justen > Cc: Laszlo Ersek > Cc: Ard Biesheuvel > Cc: Andrew Fish > Cc: Ray Ni > Signed-off-by: Michael Kubacki > > Changes since v1: > * Fixed implementation for RuntimeDxe > * Add PCD to block DisableVariablePolicy > * Fix the DumpVariablePolicy pagination in SMM > > Bret Barkelew (12): > MdeModulePkg: Define the VariablePolicy protocol interface > MdeModulePkg: Define the VariablePolicyLib > MdeModulePkg: Define the VariablePolicyHelperLib > MdeModulePkg: Define the VarCheckPolicyLib and SMM interface > MdeModulePkg: Connect VariablePolicy business logic to > VariableServices > MdeModulePkg: Allow VariablePolicy state to delete protected variables > SecurityPkg: Allow VariablePolicy state to delete authenticated > variables > MdeModulePkg: Change TCG MOR variables to use VariablePolicy > MdeModulePkg: Drop VarLock from RuntimeDxe variable driver > MdeModulePkg: Add a shell-based functional test for VariablePolicy > OvmfPkg: Add VariablePolicy engine to OvmfPkg platform > EmulatorPkg: Add VariablePolicy engine to EmulatorPkg platform > > MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLib.c | 318 +++ > MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.c | 396 ++++ > MdeModulePkg/Library/VariablePolicyLib/VariablePolicyExtraInitNull.c | 46 + > MdeModulePkg/Library/VariablePolicyLib/VariablePolicyExtraInitRuntimeDxe.c | 85 + > MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLib.c | 806 +++++++ > MdeModulePkg/Library/VariablePolicyLib/VariablePolicyUnitTest/VariablePolicyUnitTest.c | 2285 ++++++++++++++++++++ > MdeModulePkg/Test/ShellTest/VariablePolicyFuncTestApp/VariablePolicyFuncTestApp.c | 1942 +++++++++++++++++ > MdeModulePkg/Universal/Variable/RuntimeDxe/TcgMorLockDxe.c | 52 +- > MdeModulePkg/Universal/Variable/RuntimeDxe/TcgMorLockSmm.c | 60 +- > MdeModulePkg/Universal/Variable/RuntimeDxe/VarCheck.c | 49 +- > MdeModulePkg/Universal/Variable/RuntimeDxe/VariableDxe.c | 53 + > MdeModulePkg/Universal/Variable/RuntimeDxe/VariableLockRequstToLock.c | 71 + > MdeModulePkg/Universal/Variable/RuntimeDxe/VariablePolicySmmDxe.c | 653 ++++++ > MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmmRuntimeDxe.c | 14 + > SecurityPkg/Library/AuthVariableLib/AuthService.c | 22 +- > EmulatorPkg/EmulatorPkg.dsc | 6 + > MdeModulePkg/Include/Guid/VarCheckPolicyMmi.h | 54 + > MdeModulePkg/Include/Library/VariablePolicyHelperLib.h | 164 ++ > MdeModulePkg/Include/Library/VariablePolicyLib.h | 207 ++ > MdeModulePkg/Include/Protocol/VariablePolicy.h | 157 ++ > MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLib.inf | 44 + > MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLib.uni | 12 + > MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.inf | 36 + > MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.uni | 12 + > MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLib.inf | 44 + > MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLib.uni | 12 + > MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLibRuntimeDxe.inf | 52 + > MdeModulePkg/Library/VariablePolicyLib/VariablePolicyUnitTest/VariablePolicyUnitTest.inf | 41 + > MdeModulePkg/MdeModulePkg.ci.yaml | 4 +- > MdeModulePkg/MdeModulePkg.dec | 26 +- > MdeModulePkg/MdeModulePkg.dsc | 15 + > MdeModulePkg/Test/MdeModulePkgHostTest.dsc | 11 + > MdeModulePkg/Test/ShellTest/VariablePolicyFuncTestApp/Readme.md | 55 + > MdeModulePkg/Test/ShellTest/VariablePolicyFuncTestApp/VariablePolicyFuncTestApp.inf | 42 + > MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf | 5 + > MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.inf | 4 + > MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmmRuntimeDxe.inf | 12 + > MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf | 4 + > OvmfPkg/OvmfPkgIa32.dsc | 8 + > OvmfPkg/OvmfPkgIa32X64.dsc | 8 + > OvmfPkg/OvmfPkgX64.dsc | 8 + > SecurityPkg/Library/AuthVariableLib/AuthVariableLib.inf | 2 + > 42 files changed, 7819 insertions(+), 78 deletions(-) > create mode 100644 MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLib.c > create mode 100644 MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.c > create mode 100644 MdeModulePkg/Library/VariablePolicyLib/VariablePolicyExtraInitNull.c > create mode 100644 MdeModulePkg/Library/VariablePolicyLib/VariablePolicyExtraInitRuntimeDxe.c > create mode 100644 MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLib.c > create mode 100644 MdeModulePkg/Library/VariablePolicyLib/VariablePolicyUnitTest/VariablePolicyUnitTest.c > create mode 100644 MdeModulePkg/Test/ShellTest/VariablePolicyFuncTestApp/VariablePolicyFuncTestApp.c > create mode 100644 MdeModulePkg/Universal/Variable/RuntimeDxe/VariableLockRequstToLock.c > create mode 100644 MdeModulePkg/Universal/Variable/RuntimeDxe/VariablePolicySmmDxe.c > create mode 100644 MdeModulePkg/Include/Guid/VarCheckPolicyMmi.h > create mode 100644 MdeModulePkg/Include/Library/VariablePolicyHelperLib.h > create mode 100644 MdeModulePkg/Include/Library/VariablePolicyLib.h > create mode 100644 MdeModulePkg/Include/Protocol/VariablePolicy.h > create mode 100644 MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLib.inf > create mode 100644 MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLib.uni > create mode 100644 MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.inf > create mode 100644 MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.uni > create mode 100644 MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLib.inf > create mode 100644 MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLib.uni > create mode 100644 MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLibRuntimeDxe.inf > create mode 100644 MdeModulePkg/Library/VariablePolicyLib/VariablePolicyUnitTest/VariablePolicyUnitTest.inf > create mode 100644 MdeModulePkg/Test/ShellTest/VariablePolicyFuncTestApp/Readme.md > create mode 100644 MdeModulePkg/Test/ShellTest/VariablePolicyFuncTestApp/VariablePolicyFuncTestApp.inf >