OvmfPkg: Add varpolicy shell command

Adds the varpolicy EFI shell command to all DSC files that
currently include other dynamic shell commands from ShellPkg.

This command allows variable policies to be dumped in the EFI
shell for convenient auditing and debug.

Use the command in QEMU EFI shell as follows:

- `"varpolicy"` dumps platform variables
- `"varpolicy -?"` shows help text
- `"varpolicy -b"` pages output as expected
- `"varpolicy -s"` shows accurate variable statistic information
- `"varpolicy -p"` shows accurate UEFI variable policy information
- `"varpolicy-v -b"` dumps all information including variable data hex dump

Cc: Anatol Belski <anbelski@linux.microsoft.com>
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Jianyong Wu <jianyong.wu@arm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Julien Grall <julien@xen.org>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
Message-Id: <20231030203112.736-4-mikuback@linux.microsoft.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/OvmfPkg/OvmfXen.dsc b/OvmfPkg/OvmfXen.dsc
index ccd3a873c7..0063245b56 100644
--- a/OvmfPkg/OvmfXen.dsc
+++ b/OvmfPkg/OvmfXen.dsc
@@ -722,6 +722,10 @@
     <PcdsFixedAtBuild>

       gEfiShellPkgTokenSpaceGuid.PcdShellLibAutoInitialize|FALSE

   }

+  ShellPkg/DynamicCommand/VariablePolicyDynamicCommand/VariablePolicyDynamicCommand.inf {

+    <PcdsFixedAtBuild>

+      gEfiShellPkgTokenSpaceGuid.PcdShellLibAutoInitialize|FALSE

+  }

   OvmfPkg/LinuxInitrdDynamicShellCommand/LinuxInitrdDynamicShellCommand.inf {

     <PcdsFixedAtBuild>

       gEfiShellPkgTokenSpaceGuid.PcdShellLibAutoInitialize|FALSE