ArmVirtPkg/PlatformCI/ReadMe.md: Update contents

Since the code is most regularly tested in CI, distro/versioning
details are updated to match the latest CI configuration.

CI has moved from Ubuntu 18.04 to Ubuntu 22.04 since the time of the
file's creation, but the code is actually built in a Fedora container
so Fedora is mentioned as the primary build/test environment.

Updates the following information:

- Build OS: Fedora 37 Linux
- Supported Configuration: Additional DSCs added
- Python: 3.12.x
- Packaging Tool: dnf instead of apt
- Container Details: Added
- Primary Build Example: QemuBuild.py instead of PlatformBuild.py

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Julien Grall <julien@xen.org>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Message-Id: <20231030230902.849-1-mikuback@linux.microsoft.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
[lersek@redhat.com: don't specify the number of supported firmware builds]

ArmVirtPkg/PlatformCI/ReadMe.md

@@ -5,28 +5,43 @@ to use the same Pytools based build infrastructure locally.
 
 ## Supported Configuration Details
 
-This solution for building and running ArmVirtPkg has only been validated with Ubuntu
-18.04 and the GCC5 toolchain. Two different firmware builds are supported and are
-described below.
+This solution for building and running ArmVirtPkg has been validated with Fedora
+37 Linux and the GCC5 toolchain. The following different firmware builds are
+supported.
 
-| Configuration name      | Architecture       | DSC File         |Additional Flags |
-| :----------             | :-----             | :-----           | :----           |
-| AARCH64                 | AARCH64            | ArmVirtQemu.dsc  | None            |
-| ARM                     | ARM                | ArmVirtQemu.dsc  | None            |
+| Configuration name      | Architecture       | DSC File               | Additional Flags |
+| :----------             | :-----             | :-----                 | :----            |
+| AARCH64 - KVM Cloud HV  | AARCH64            | ArmVirtCloudHv.dsc     | None             |
+| ARM - KVM Cloud HV      | ARM                | ArmVirtCloudHv.dsc     | None             |
+| AARCH64 - kvmtool       | AARCH64            | ArmVirtKvmTool.dsc     | None             |
+| ARM - kvmtool           | ARM                | ArmVirtKvmTool.dsc     | None             |
+| AARCH64 - QEMU          | AARCH64            | ArmVirtQemu.dsc        | None             |
+| ARM - QEMU              | ARM                | ArmVirtQemu.dsc        | None             |
+| AARCH64 - QEMU Kernel   | AARCH64            | ArmVirtQemuKernel.dsc  | None             |
+| ARM - QEMU Kernel       | ARM                | ArmVirtQemuKernel.dsc  | None             |
+| AARCH64 - Xen HV        | AARCH64            | ArmVirtXen.dsc         | None             |
+| ARM - Xen HV            | ARM                | ArmVirtXen.dsc         | None             |
 
 ## EDK2 Developer environment
 
-- [Python 3.8.x - Download & Install](https://www.python.org/downloads/)
+- [Python 3.12.x - Download & Install](https://www.python.org/downloads/)
 - [GIT - Download & Install](https://git-scm.com/download/)
 - [QEMU - Download, Install, and add to your path](https://www.qemu.org/download/)
 - [Edk2 Source](https://github.com/tianocore/edk2)
-- Additional packages found necessary for Ubuntu 18.04
-  - apt-get install gcc g++ make uuid-dev
+- Additional packages found necessary for Fedora Linux 37
+  - dnf install gcc g++ make libuuid-devel
 
 Note: edksetup, Submodule initialization and manual installation of NASM, iASL, or
 the required cross-compiler toolchains are **not** required, this is handled by the
 Pytools build system.
 
+The code is built in CI using a container. The latest Fedora Linux 37 container is
+available in this GitHub container registry feed
+[fedora-37-test](https://github.com/tianocore/containers/pkgs/container/containers%2Ffedora-37-test).
+
+The exact container version tested in CI is maintained in this file
+[edk2/.azurepipelines/templates/default.yml](https://github.com/tianocore/edk2/blob/HEAD/.azurepipelines/templates/defaults.yml).
+
 ## Building with Pytools for ArmVirtPkg
 
 If you are unfamiliar with Pytools, it is recommended to first read through
@@ -57,16 +72,16 @@ the generic set of edk2 [Build Instructions](https://github.com/tianocore/tianoc
     pip install --upgrade -r pip-requirements.txt
     ```
 
-4. Initialize & Update Submodules - only when submodules updated
+4. Initialize & Update Submodules - only when submodules updated (QEMU build example)
 
     ``` bash
-    stuart_setup -c ArmVirtPkg/PlatformCI/PlatformBuild.py TOOL_CHAIN_TAG=<TOOL_CHAIN_TAG> -a <TARGET_ARCH>
+    stuart_setup -c ArmVirtPkg/PlatformCI/QemuBuild.py TOOL_CHAIN_TAG=<TOOL_CHAIN_TAG> -a <TARGET_ARCH>
     ```
 
-5. Initialize & Update Dependencies - only as needed when ext_deps change
+5. Initialize & Update Dependencies - only as needed when ext_deps change (QEMU build example)
 
     ``` bash
-    stuart_update -c ArmVirtPkg/PlatformCI/PlatformBuild.py TOOL_CHAIN_TAG=<TOOL_CHAIN_TAG> -a <TARGET_ARCH>
+    stuart_update -c ArmVirtPkg/PlatformCI/QemuBuild.py TOOL_CHAIN_TAG=<TOOL_CHAIN_TAG> -a <TARGET_ARCH>
     ```
 
 6. Compile the basetools if necessary - only when basetools C source files change
@@ -75,13 +90,13 @@ the generic set of edk2 [Build Instructions](https://github.com/tianocore/tianoc
     python BaseTools/Edk2ToolsBuild.py -t <ToolChainTag>
     ```
 
-7. Compile Firmware
+7. Compile Firmware (QEMU build example)
 
     ``` bash
-    stuart_build -c ArmVirtPkg/PlatformCI/PlatformBuild.py TOOL_CHAIN_TAG=<TOOL_CHAIN_TAG> -a <TARGET_ARCH>
+    stuart_build -c ArmVirtPkg/PlatformCI/QemuBuild.py TOOL_CHAIN_TAG=<TOOL_CHAIN_TAG> -a <TARGET_ARCH>
     ```
 
-    - use `stuart_build -c ArmVirtPkg/PlatformCI/PlatformBuild.py -h` option to see additional
+    - use `stuart_build -c ArmVirtPkg/PlatformCI/QemuBuild.py -h` option to see additional
     options like `--clean`
 
 8. Running Emulator
@@ -90,7 +105,7 @@ the generic set of edk2 [Build Instructions](https://github.com/tianocore/tianoc
     - or use the `--FlashOnly` feature to just run the emulator.
 
       ``` bash
-      stuart_build -c ArmVirtPkg/PlatformCI/PlatformBuild.py TOOL_CHAIN_TAG=<TOOL_CHAIN_TAG> -a <TARGET_ARCH> --FlashOnly
+      stuart_build -c ArmVirtPkg/PlatformCI/QemuBuild.py TOOL_CHAIN_TAG=<TOOL_CHAIN_TAG> -a <TARGET_ARCH> --FlashOnly
       ```
 
 ### Notes
@@ -120,7 +135,7 @@ command-line. _stuart_build_ currently requires values to be assigned, so add an
 For example, to enable the TPM2 support, instead of the traditional "-D TPM2_ENABLE=TRUE", the stuart_build
 command-line would be:
 
-`stuart_build -c ArmVirtPkg/PlatformCI/PlatformBuild.py BLD_*_TPM2_ENABLE=TRUE`
+`stuart_build -c ArmVirtPkg/PlatformCI/QemuBuild.py BLD_*_TPM2_ENABLE=TRUE`
 
 ## References