[edk2-devel] [PATCH 2/2] OvmfPkg/OvmfPkgX64: Allow runtime control of IPv4 and IPv6 support
Ard Biesheuvel
ardb at kernel.org
Mon Aug 15 09:40:30 UTC 2022
Wire up the newly added DriverLoadInhibitorLib in a way that ties
dispatch of the Ip4Dxe and Ip6Dxe drivers to QEMU fw_cfg variables
'opt/org.tianocore/IPv4Support' and 'opt/org.tianocore/IPv6Support'
respectively.
Setting both variables to 'n' disables IP based networking entirely,
without the need for additional code changes at the NIC driver or
network boot protocol level.
Signed-off-by: Ard Biesheuvel <ardb at kernel.org>
---
OvmfPkg/OvmfPkgX64.dsc | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/OvmfPkg/OvmfPkgX64.dsc b/OvmfPkg/OvmfPkgX64.dsc
index 6e68f60dc90f..0c0ded88f86e 100644
--- a/OvmfPkg/OvmfPkgX64.dsc
+++ b/OvmfPkg/OvmfPkgX64.dsc
@@ -947,6 +947,20 @@ [Components]
NULL|OvmfPkg/Library/PxeBcPcdProducerLib/PxeBcPcdProducerLib.inf
}
+ NetworkPkg/Ip4Dxe/Ip4Dxe.inf {
+ <LibraryClasses>
+ NULL|OvmfPkg/Library/DriverLoadInhibitorLib/DriverLoadInhibitorLib.inf
+ <PcdsFixedAtBuild>
+ gUefiOvmfPkgTokenSpaceGuid.PcdDriverInhibitorFwCfgVarName|"opt/org.tianocore/IPv4Support"
+ }
+
+ NetworkPkg/Ip6Dxe/Ip6Dxe.inf {
+ <LibraryClasses>
+ NULL|OvmfPkg/Library/DriverLoadInhibitorLib/DriverLoadInhibitorLib.inf
+ <PcdsFixedAtBuild>
+ gUefiOvmfPkgTokenSpaceGuid.PcdDriverInhibitorFwCfgVarName|"opt/org.tianocore/IPv6Support"
+ }
+
!if $(NETWORK_TLS_ENABLE) == TRUE
NetworkPkg/TlsAuthConfigDxe/TlsAuthConfigDxe.inf {
<LibraryClasses>
--
2.35.1
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#92422): https://edk2.groups.io/g/devel/message/92422
Mute This Topic: https://groups.io/mt/93032847/1813853
Group Owner: devel+owner at edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [edk2-devel-archive at redhat.com]
-=-=-=-=-=-=-=-=-=-=-=-
More information about the edk2-devel-archive
mailing list