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There are several network stack drivers in MdeModulePkg or NetworkPkg. Currently, we only use the drivers from MdeModulePkg which only provides the IPv4 support. This commit adds the IPv6 drivers in NetworkPkg into OVMF. Here is the table of drivers from Laszlo. currently included related driver add or replace from MdeModulePkg in NetworkPkg from NetworkPkg ------------------ -------------- --------------- SnpDxe n/a n/a DpcDxe n/a n/a MnpDxe n/a n/a VlanConfigDxe n/a n/a ArpDxe n/a n/a Dhcp4Dxe Dhcp6Dxe add Ip4ConfigDxe Ip6Dxe add Ip4Dxe Ip6Dxe add Mtftp4Dxe Mtftp6Dxe add Tcp4Dxe TcpDxe replace Udp4Dxe Udp6Dxe add UefiPxeBcDxe UefiPxeBcDxe replace IScsiDxe IScsiDxe replace Since the TcpDxe, UefiPxeBcDxe, and IScsiDxe drivers in NetworkPkg also support IPv4, we replace the ones in MdeModulePkg. To enable the IPv6 support, build OVMF with "-D NETWORK_IP6_ENABLE". A special case is NetworkPkg/IScsiDxe. It requires openssl. For convenience, NetworkPkg/IScsiDxe is enabled only if both IPv6 and SecureBoot are enabled. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Gary Lin <glin@suse.com> [lersek@redhat.com: typo fix in commit message; specil -> special] Reviewed-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16543 6f19259b-4bc3-4df7-8a09-765794883524