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From: "Sami Mujawar" <sami.mujawar@arm.com>
To: <devel@edk2.groups.io>
Cc: Sami Mujawar <sami.mujawar@arm.com>, <ardb+tianocore@kernel.org>,
	<quic_llindhol@quicinc.com>, <kraxel@redhat.com>,
	<Pierre.Gondois@arm.com>, <Suzuki.Poulose@arm.com>,
	<jean-philippe@linaro.org>, <Matteo.Carlini@arm.com>,
	<Akanksha.Jain2@arm.com>, <Ben.Adderson@arm.com>, <nd@arm.com>
Subject: [RFC PATCH v1 13/30] ArmVirtPkg: Add NULL instance of ArmCcaInitPeiLib
Date: Tue, 25 Apr 2023 17:04:11 +0100	[thread overview]
Message-ID: <20230425160428.27980-14-sami.mujawar@arm.com> (raw)
In-Reply-To: <20230425160428.27980-1-sami.mujawar@arm.com>

Add a NULL instance of ArmCcaInitPeiLib library that guest firmware
for VMMs that do not implement Arm CCA Realms can use.

Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
---
 ArmVirtPkg/ArmVirt.dsc.inc                                       |  2 +
 ArmVirtPkg/Library/ArmCcaInitPeiLibNull/ArmCcaInitPeiLibNull.c   | 59 ++++++++++++++++++++
 ArmVirtPkg/Library/ArmCcaInitPeiLibNull/ArmCcaInitPeiLibNull.inf | 27 +++++++++
 3 files changed, 88 insertions(+)

diff --git a/ArmVirtPkg/ArmVirt.dsc.inc b/ArmVirtPkg/ArmVirt.dsc.inc
index 5b18184be2631ce6d158b471c055af9e6e07f4a0..409749297263a13696885d17c6d5554d07c195e4 100644
--- a/ArmVirtPkg/ArmVirt.dsc.inc
+++ b/ArmVirtPkg/ArmVirt.dsc.inc
@@ -189,6 +189,8 @@ [LibraryClasses.common.SEC]
   PeiServicesTablePointerLib|ArmPkg/Library/PeiServicesTablePointerLib/PeiServicesTablePointerLib.inf
   MemoryAllocationLib|MdePkg/Library/PeiMemoryAllocationLib/PeiMemoryAllocationLib.inf
 
+  ArmCcaInitPeiLib|ArmVirtPkg/Library/ArmCcaInitPeiLibNull/ArmCcaInitPeiLibNull.inf
+
 [LibraryClasses.common.PEI_CORE]
   PcdLib|MdePkg/Library/PeiPcdLib/PeiPcdLib.inf
   BaseMemoryLib|MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf
diff --git a/ArmVirtPkg/Library/ArmCcaInitPeiLibNull/ArmCcaInitPeiLibNull.c b/ArmVirtPkg/Library/ArmCcaInitPeiLibNull/ArmCcaInitPeiLibNull.c
new file mode 100644
index 0000000000000000000000000000000000000000..5b606208dbcf4f0494cde79dd8923ef80fa0137b
--- /dev/null
+++ b/ArmVirtPkg/Library/ArmCcaInitPeiLibNull/ArmCcaInitPeiLibNull.c
@@ -0,0 +1,59 @@
+/** @file
+  Library that implements a NULL implementation of the ArmCcaInitPeiLib.
+
+  Copyright (c) 2022 - 2023, Arm Limited. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+  @par Glossary:
+    - Rsi or RSI   - Realm Service Interface
+    - IPA          - Intermediate Physical Address
+    - RIPAS        - Realm IPA state
+**/
+
+#include <Library/ArmCcaLib.h>
+#include <Library/ArmCcaRsiLib.h>
+#include <Library/ArmMmuLib.h>
+#include <Library/ArmVirtMemInfoLib.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PcdLib.h>
+
+/**
+  Configure the System Memory region as Protected RAM.
+
+  When a VMM creates a Realm, a small amount of DRAM (which contains the
+  firmware image) and the initial content is configured as Protected RAM.
+  The remaining System Memory is in the Protected Empty state. The firmware
+  must then initialise the remaining System Memory as Protected RAM before
+  it can be accessed.
+
+  @retval RETURN_SUCCESS            Success.
+  @retval RETURN_INVALID_PARAMETER  A parameter is invalid.
+  @retval RETURN_UNSUPPORTED        The execution context is not in a Realm.
+**/
+RETURN_STATUS
+EFIAPI
+ArmCcaConfigureSystemMemory (
+  VOID
+  )
+{
+  return RETURN_UNSUPPORTED;
+}
+
+/**
+  Perform Arm CCA specific initialisations.
+
+  @retval EFI_SUCCESS               Success or execution context is not a Realm.
+  @retval EFI_OUT_OF_RESOURCES      Out of resources.
+  @retval RETURN_INVALID_PARAMETER  A parameter is invalid.
+**/
+EFI_STATUS
+EFIAPI
+ArmCcaInitialize (
+  VOID
+  )
+{
+  // Noting to do as the execution context is not a Realm.
+  return EFI_SUCCESS;
+}
diff --git a/ArmVirtPkg/Library/ArmCcaInitPeiLibNull/ArmCcaInitPeiLibNull.inf b/ArmVirtPkg/Library/ArmCcaInitPeiLibNull/ArmCcaInitPeiLibNull.inf
new file mode 100644
index 0000000000000000000000000000000000000000..f039c7abdb6d5391f792179546ff9947086fe541
--- /dev/null
+++ b/ArmVirtPkg/Library/ArmCcaInitPeiLibNull/ArmCcaInitPeiLibNull.inf
@@ -0,0 +1,27 @@
+## @file
+#  Library that implements a NULL implementation of the ArmCcaInitPeiLib.
+#
+#  Copyright (c) 2022 - 2023, Arm Limited. All rights reserved.<BR>
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x0001001B
+  BASE_NAME                      = ArmCcaInitPeiLib
+  FILE_GUID                      = 60686C60-8433-49EE-9F2C-DDC424A95652
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = ArmCcaInitPeiLib
+
+[Sources]
+  ArmCcaInitPeiLibNull.c
+
+[Packages]
+  ArmPkg/ArmPkg.dec
+  ArmVirtPkg/ArmVirtPkg.dec
+  MdePkg/MdePkg.dec
+
+[LibraryClasses]
+  BaseLib
-- 
'Guid(CE165669-3EF3-493F-B85D-6190EE5B9759)'


  parent reply	other threads:[~2023-04-25 16:05 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-25 16:03 [RFC PATCH v1 00/30] Support for Arm CCA guest firmware Sami Mujawar
2023-04-25 16:03 ` [RFC PATCH v1 01/30] ArmVirtPkg: kvmtool: Add Emulated Runtime variable support Sami Mujawar
2023-05-10 11:32   ` [edk2-devel] " Ard Biesheuvel
2023-05-15 10:36     ` Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 02/30] ArmPkg: Add helper function to detect RME Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 03/30] ArmPkg: Export SetMemoryRegionAttribute in ArmMmuLib Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 04/30] ArmPkg: Extend number of parameter registers in SMC call Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 05/30] ArmPkg & ArmVirtPkg: Make PcdMonitorConduitHvc a dynamic PCD Sami Mujawar
2023-05-10 11:38   ` Ard Biesheuvel
2023-05-15 10:37     ` Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 06/30] ArmVirtPkg: Add Arm CCA Realm Service Interface Library Sami Mujawar
2023-05-04 12:59   ` [edk2-devel] " Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 07/30] ArmVirtPkg: ArmCcaRsiLib: Add interfaces to manage the Realm IPA state Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 08/30] ArmVirtPkg: ArmCcaRsiLib: Add an interface to get an attestation token Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 09/30] ArmVirtPkg: ArmCcaRsiLib: Add interfaces to get/extend REMs Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 10/30] ArmVirtPkg: ArmCcaRsiLib: Add an interface to make a RSI Host Call Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 11/30] ArmVirtPkg: Define a GUID HOB for IPA width of a Realm Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 12/30] ArmVirtPkg: Add library for Arm CCA initialisation in PEI Sami Mujawar
2023-04-25 16:04 ` Sami Mujawar [this message]
2023-04-25 16:04 ` [RFC PATCH v1 14/30] ArmVirtPkg: Add library for Arm CCA helper functions Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 15/30] ArmVirtPkg: Add Null instance of ArmCcaLib Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 16/30] ArmVirtPkg: Define an interface to configure MMIO regions for Arm CCA Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 17/30] ArmVirtPkg: CloudHv: Add a NULL implementation of ArmCcaConfigureMmio Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 18/30] ArmVirtPkg: Qemu: " Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 19/30] ArmVirtPkg: Xen: " Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 20/30] ArmVirtPkg: Configure the MMIO regions for Arm CCA Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 21/30] ArmVirtPkg: Kvmtool: Use Null version of DebugLib in PrePi Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 22/30] ArmVirtPkg: Add Arm CCA libraries for Kvmtool guest firmware Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 23/30] ArmVirtPkg: Arm CCA configure system memory in early Pei Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 24/30] ArmVirtPkg: Perform Arm CCA initialisation in the Pei phase Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 25/30] ArmVirtPkg: Add ArmCcaDxe for early DXE phase initialisation Sami Mujawar
2023-05-10 12:08   ` Ard Biesheuvel
2023-05-15 10:39     ` Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 26/30] ArmVirtPkg: Introduce Realm Aperture Management Protocol Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 27/30] ArmVirtPkg: IoMMU driver to DMA from Realms Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 28/30] ArmVirtPkg: Enable Virtio communication for Arm CCA Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 29/30] MdePkg: Warn if AArch64 RNDR instruction is not supported Sami Mujawar
2023-04-25 16:04 ` [RFC PATCH v1 30/30] ArmVirtPkg: Kvmtool: Switch to use BaseRng for AArch64 Sami Mujawar
2023-05-04 15:13 ` [RFC PATCH v1 00/30] Support for Arm CCA guest firmware Jean-Philippe Brucker
2023-05-04 15:36   ` Ard Biesheuvel
2023-05-05  9:51     ` Jean-Philippe Brucker

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