\r
=== Network Support ===\r
\r
-OVMF provides a generic UEFI network stack by default, with the lowest level\r
-driver (the NIC driver) missing in the default build. In order to complete the\r
-stack and make eg. DHCP, PXE Boot, and socket test utilities from the StdLib\r
-edk2 package work, (1) qemu has to be configured to emulate a NIC, (2) a\r
-matching UEFI NIC driver must be available when OVMF boots.\r
+OVMF provides a UEFI network stack by default. Its lowest level driver is the\r
+NIC driver, higher levels are generic. In order to make DHCP, PXE Boot, and eg.\r
+socket test utilities from the StdLib edk2 package work, (1) qemu has to be\r
+configured to emulate a NIC, (2) a matching UEFI NIC driver must be available\r
+when OVMF boots.\r
\r
(If a NIC is configured for the virtual machine, and -- dependent on boot order\r
-- PXE booting is attempted, but no DHCP server responds to OVMF's DHCP\r
* For each NIC emulated by qemu, a GPLv2 licensed UEFI driver is available from\r
the iPXE project. The qemu source distribution, starting with version 1.5,\r
contains prebuilt binaries of these drivers (and of course allows one to\r
- rebuild them from source as well).\r
+ rebuild them from source as well). This is the recommended set of drivers.\r
\r
* Use the qemu -netdev and -device options, or the legacy -net option, to\r
enable NIC support: <http://wiki.qemu.org/Documentation/Networking>.\r
\r
* For a qemu >= 1.5 binary running *without* any "-M machine" option where\r
"machine" would identify a < qemu-1.5 configuration (for example: "-M\r
- pc-i440fx-1.4" or "-M pc-0.13"), the drivers are available from the default\r
- qemu installation to OVMF without further settings.\r
+ pc-i440fx-1.4" or "-M pc-0.13"), the iPXE drivers are automatically available\r
+ to and configured for OVMF in the default qemu installation.\r
\r
* For a qemu binary in [0.13, 1.5), or a qemu >= 1.5 binary with an "-M\r
machine" option where "machine" selects a < qemu-1.5 configuration:\r
\r
- download a >= 1.5.0-rc1 source tarball from <http://wiki.qemu.org/Download>,\r
\r
- - extract the following files from the tarball and install them in a\r
- location that is accessible to qemu processes (this may depend on your\r
+ - extract the following iPXE driver files from the tarball and install them\r
+ in a location that is accessible to qemu processes (this may depend on your\r
SELinux configuration, for example):\r
\r
qemu-VERSION/pc-bios/efi-e1000.rom\r
-device rtl8139,...,romfile=/full/path/to/efi-rtl8139.rom\r
-device virtio-net-pci,...,romfile=/full/path/to/efi-virtio.rom\r
\r
-* Independently of the iPXE NIC drivers, Intel's proprietary E1000 NIC driver\r
- can be embedded in the OVMF image at build time, as an alternative guest\r
- driver for "-device e1000":\r
+* Independently of the iPXE NIC drivers, the default OVMF build provides a\r
+ basic virtio-net driver, located in OvmfPkg/VirtioNetDxe.\r
+\r
+* Also independently of the iPXE NIC drivers, Intel's proprietary E1000 NIC\r
+ driver (PROEFI) can be embedded in the OVMF image at build time:\r
\r
- Download UEFI drivers for the e1000 NIC\r
- http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=17515&lang=eng\r
- Add "-D E1000_ENABLE -D FD_SIZE_2MB" to your build command,\r
- For example: "build -D E1000_ENABLE -D FD_SIZE_2MB".\r
\r
+* When a matching iPXE driver is configured for a NIC as described above, it\r
+ takes priority over other drivers that could possibly drive the card too:\r
+\r
+ | e1000 ne2k_pci pcnet rtl8139 virtio-net-pci\r
+ -------------+------------------------------------------------\r
+ iPXE | x x x x x\r
+ VirtioNetDxe | x\r
+ Intel PROEFI | x\r
+\r
=== UNIXGCC Debug ===\r
\r
If you build with the UNIXGCC toolchain, then debugging will be disabled\r
projects / mirror_edk2.git / blobdiff