File ovmf-OvmfPkg-Add-NETWORK_ISCSI_DEFAULT_ENABLE-build-flag.patch of Package ovmf

From c526b923ff146045e55208fa13b05de3720eddc2 Mon Sep 17 00:00:00 2001
From: Richard Lyu <richard.lyu@suse.com>
Date: Wed, 10 Sep 2025 21:56:11 +0800
Subject: [PATCH] OvmfPkg: Add NETWORK_ISCSI_DEFAULT_ENABLE build flag

REF: https://github.com/tianocore/edk2/issues/11483

Introduce a new build flag NETWORK_ISCSI_DEFAULT_ENABLE to control
whether iSCSI support is enabled by default without setting fwcfg. This
allows developers to decide at build time if the IScsiDxe driver should be
included and enabled by default.

If NETWORK_ISCSI_DEFAULT_ENABLE is set to FALSE, IScsiDxe will still be
built when NETWORK_ISCSI_ENABLE is TRUE, but the default PCD value
(gUefiOvmfPkgTokenSpaceGuid.PcdEntryPointOverrideDefaultValue) will be
set to "no". This ensures iSCSI remains disabled at runtime unless enabled
explicitly by fwcfg.

This change provides more flexibility for both build-time and runtime
configuration of iSCSI support.

Signed-off-by: Richard Lyu <richard.lyu@suse.com>
---
 OvmfPkg/Include/Dsc/NetworkComponents.dsc.inc | 4 +++-
 OvmfPkg/OvmfPkgX64.dsc                        | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/OvmfPkg/Include/Dsc/NetworkComponents.dsc.inc b/OvmfPkg/Include/Dsc/NetworkComponents.dsc.inc
index 051fe950ce..288216373a 100644
--- a/OvmfPkg/Include/Dsc/NetworkComponents.dsc.inc
+++ b/OvmfPkg/Include/Dsc/NetworkComponents.dsc.inc
@@ -48,7 +48,9 @@
         UefiDriverEntryPoint|OvmfPkg/Library/UefiDriverEntryPointFwCfgOverrideLib/UefiDriverEntryPointFwCfgOverrideLib.inf
       <PcdsFixedAtBuild>
         gUefiOvmfPkgTokenSpaceGuid.PcdEntryPointOverrideFwCfgVarName|"opt/org.tianocore/ISCSISupport"
-        gUefiOvmfPkgTokenSpaceGuid.PcdEntryPointOverrideDefaultValue|"no"
+        !if $(NETWORK_ISCSI_DEFAULT_ENABLE) == FALSE
+          gUefiOvmfPkgTokenSpaceGuid.PcdEntryPointOverrideDefaultValue|"no"
+        !endif
     }
   !endif
 
diff --git a/OvmfPkg/OvmfPkgX64.dsc b/OvmfPkg/OvmfPkgX64.dsc
index f859db6acd..7d7bb5dbb0 100644
--- a/OvmfPkg/OvmfPkgX64.dsc
+++ b/OvmfPkg/OvmfPkgX64.dsc
@@ -51,6 +51,7 @@
   DEFINE NETWORK_HTTP_BOOT_ENABLE       = FALSE
   DEFINE NETWORK_ALLOW_HTTP_CONNECTIONS = TRUE
   DEFINE NETWORK_ISCSI_ENABLE           = TRUE
+  DEFINE NETWORK_ISCSI_DEFAULT_ENABLE   = FALSE
   DEFINE NETWORK_PXE_BOOT_ENABLE        = TRUE
 
 !include NetworkPkg/NetworkDefines.dsc.inc
-- 
2.46.1