From: "Sughosh Ganu" <sughosh.ganu@linaro.org>
To: devel@edk2.groups.io
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>,
Sami Mujawar <sami.mujawar@arm.com>,
Jiewen Yao <jiewen.yao@intel.com>,
Ilias Apalodimas <ilias.apalodimas@linaro.org>
Subject: [PATCH v1 11/12] MdeModulePkg/VariableStandaloneMm: Set PcdFlashNvStorageVariableBase to Pcd
Date: Wed, 21 Oct 2020 17:02:32 +0530 [thread overview]
Message-ID: <20201021113233.25548-12-sughosh.ganu@linaro.org> (raw)
In-Reply-To: <20201021113233.25548-1-sughosh.ganu@linaro.org>
From: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Instead of running StMM as a SP, OP-TEE creates a new secure partition,
which emulates SPM and isolates StMM from the rest of the Trusted
Applications (TAs). We can then compile StMM as an FD image and run it
in OP-TEE. With the addition of a new RPMB driver, we can leverage OP-TEE
and store variables to an RPMB device.
Since EDK2 upper layers expect byte addressable code, for the RPMB to
work, we need to allocate memory and sync it with the hardware on
read/writes. Since DynamicPCDs are not supported in that context we
can only use PatchablePCDs. So let's switch them to Pcd instead of
FixedPcd and accomodate the new driver.
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
---
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf
index 6e17f6cdf5..dfed7fe069 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf
@@ -115,10 +115,12 @@
## SOMETIMES_PRODUCES ## Variable:L"VarErrorFlag"
gEdkiiVarErrorFlagGuid
-[FixedPcd]
- gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize ## CONSUMES
+[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64 ## CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize ## CONSUMES
+
+[FixedPcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVariableSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxAuthVariableSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVolatileVariableSize ## CONSUMES
--
2.17.1
next prev parent reply other threads:[~2020-10-21 11:33 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-21 11:32 [PATCH v1 00/12] Add support for using FF-A calls sughosh.ganu
2020-10-21 11:32 ` [PATCH v1 01/12] ArmPkg/IndustryStandard: Add barebones FF-A header Sughosh Ganu
2020-11-05 10:33 ` Sami Mujawar
2020-11-06 9:06 ` Sughosh Ganu
2020-10-21 11:32 ` [PATCH v1 02/12] ArmPkg/ArmSvcLib: Return x4-x7 in output parameters Sughosh Ganu
2020-11-10 12:02 ` Sami Mujawar
2020-10-21 11:32 ` [PATCH v1 03/12] StandaloneMmPkg: Use FF-A header file in Standalone MM Core entry point Sughosh Ganu
2020-10-21 11:32 ` [PATCH v1 04/12] ArmPkg: Introduce support for PcdFfaEnable Sughosh Ganu
2020-11-19 9:56 ` Sami Mujawar
2020-10-21 11:32 ` [PATCH v1 05/12] StandaloneMmPkg: Add the SPM version for FF-A Sughosh Ganu
2020-11-19 9:54 ` Sami Mujawar
2020-10-21 11:32 ` [PATCH v1 06/12] StandaloneMmPkg: Add option to use FF-A calls for getting SPM version Sughosh Ganu
2020-11-23 10:10 ` Sami Mujawar
2020-10-21 11:32 ` [PATCH v1 07/12] StandaloneMmPkg: Add option to use FF-A calls for communication with SPM Sughosh Ganu
2020-11-23 12:38 ` Sami Mujawar
2020-10-21 11:32 ` [PATCH v1 08/12] StandaloneMmPkg: Use FF-A header file in Standalone MM Arm MMU library Sughosh Ganu
2020-10-21 11:32 ` [PATCH v1 09/12] ArmPkg/StandaloneMmMmuLib: Add option to use FF-A calls to get memory region's permissions Sughosh Ganu
2020-11-23 13:26 ` Sami Mujawar
2020-10-21 11:32 ` [PATCH v1 10/12] ArmPkg/StandaloneMmMmuLib: Add option to use FF-A calls to set " Sughosh Ganu
2020-11-23 13:42 ` Sami Mujawar
[not found] ` <164A26E48323EBBE.21019@groups.io>
2020-11-23 14:21 ` [edk2-devel] " Sami Mujawar
2020-10-21 11:32 ` Sughosh Ganu [this message]
2020-11-23 13:52 ` [PATCH v1 11/12] MdeModulePkg/VariableStandaloneMm: Set PcdFlashNvStorageVariableBase to Pcd Sami Mujawar
2020-10-21 11:32 ` [PATCH v1 12/12] StandaloneMmPkg: Allow sending FFA Direct Request message to StandaloneMm Sughosh Ganu
2020-11-23 14:17 ` Sami Mujawar
2020-11-05 10:29 ` [PATCH v1 00/12] Add support for using FF-A calls Sami Mujawar
2020-11-23 14:33 ` Sami Mujawar
2020-11-24 7:48 ` Sughosh Ganu
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