Add CCA BootSync Learning Path

Signed-off-by: Anton Antonov <Anton.Antonov@arm.com>

Author: anta5010

content/learning-paths/servers-and-cloud-computing/cca-bootsync/_index.md

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+---
+title: Arm CCA Boot Sync
+description: Learn how to use Arm CCA Boot Sync while launching Arm CCA Realms on an FVP with RME support.
+
+minutes_to_complete: 60
+
+who_is_this_for: This Learning Path is for developers who want to understand how to use Arm CCA Bootsync.
+
+learning_objectives:
+  - Gain an overview of Arm CCA Boot Sync and Boot Onjection Protocol.
+  - Understand how Arm CCA Boot Sync can be used for defining UEFI variables, enabling Secure Boot and share secure data with Arm CCA Realms.
+  - Lanch Arm CCA Realms with Secure Boot enabled and encrypted file system using an Armv9-A AEM Base Fixed Virtual Platform (FVP) with RME support.
+
+prerequisites:
+  - An AArch64 or x86_64 computer running Linux or macOS. Cloud-based instances can also be used; see the [Arm cloud service providers](/learning-paths/servers-and-cloud-computing/csp/)
+  - Completion of the [Run an application in a Realm using the Arm Confidential Compute Architecture (CCA)](/learning-paths/servers-and-cloud-computing/cca-container) Learning Path
+
+author:
+  - Anton Antonov
+  - Pareena Verma
+
+generate_summary_faq: true
+rerun_summary: false
+rerun_faqs: false
+
+### Tags
+skilllevels: Advanced
+subjects: Performance and Architecture
+armips:
+  - Neoverse
+  - Cortex-A
+operatingsystems:
+  - Linux
+  - macOS
+tools_software_languages:
+  - FVP
+  - RME
+  - CCA
+  - Docker
+  - EDK2
+  - Cryptsetup
+
+further_reading:
+  - resource:
+      title: Arm Confidential Compute Architecture
+      link: https://www.arm.com/architecture/security-features/arm-confidential-compute-architecture
+      type: website
+  - resource:
+      title: Arm Confidential Compute Architecture Open-Source enablement
+      link: https://www.youtube.com/watch?v=JXrNkYysuXw
+      type: video
+  - resource:
+      title: Learn the architecture - Realm Management Extension
+      link: https://developer.arm.com/documentation/den0126
+      type: documentation
+  - resource:
+      title: Realm Management Monitor Specification
+      link: https://developer.arm.com/documentation/den0137/latest/
+      type: documentation
+
+### FIXED, DO NOT MODIFY
+# ================================================================================
+weight: 1                       # _index.md always has weight of 1 to order correctly
+layout: "learningpathall"       # All files under learning paths have this same wrapper
+learning_path_main_page: "yes"  # This should be surfaced when looking for related content. Only set for _index.md of learning path content.
+---
+

content/learning-paths/servers-and-cloud-computing/cca-bootsync/_next-steps.md

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+---
+# ================================================================================
+#       FIXED, DO NOT MODIFY THIS FILE
+# ================================================================================
+weight: 21                  # Set to always be larger than the content in this path to be at the end of the navigation.
+title: "Next Steps"         # Always the same, html page title.
+layout: "learningpathall"   # All files under learning paths have this same wrapper for Hugo processing.
+---

content/learning-paths/servers-and-cloud-computing/cca-bootsync/cca-bootsync.md

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+---
+# User change
+title: "Overview of Arm CCA BootSync and Boot Injection protocol"
+
+weight: 2 # 1 is first, 2 is second, etc.
+
+# Do not modify these elements
+layout: "learningpathall"
+---
+
+## Design overview
+
+TO_DO: Explain Boot Injection protocol and Arm CCA Boot Sync wokflow.
+
+For more details see:
+
+- [ArmCcaBootSync/Readme.md](https://gitlab.arm.com/linux-arm/edk2-cca/-/blob/cca/4441_measured_boot_v1/ArmVirtPkg/ArmCcaBootSync/Readme.md)
+- Appendix A (Boot Injection) in [the RHI specifications document](https://confluence.arm.com/display/FENIMORE/RHI+specification)
+
+
+In the next section, you will launch realms and see how Arm CCA BootSync can be used.