4d8d5467cd
Currently on the pseries machine the SLOF firmware is used normally, but we bypass it when -kernel is specified. Having these two different boot paths can cause some confusion. In particular at present we need to "probe" the (emulated) PCI bus and produce device tree nodes for the PCI devices in qemu, for the -kernel case. In the SLOF case, it takes the device tree from qemu adds some stuff to it then passes it on to the kernel. It's been decided that a better approach is to always boot through SLOF, even when using -kernel. WIth this approach we can leave PCI probing and device node creation to SLOF in all cases which removes a bunch of code in qemu, and avoids iterating the PCI devices from the machine specific init code which we're not supposed to do. This patch changes qemu to always boot through SLOF, and not to create PCI nodes. Simultaneously it updates the included version of SLOF (submodule and binary image) to one which supports (and requires) the new approach. The new SLOF version also includes a number of unrelated enhancements: support for booting from virtio-pci devices and e1000, greatly improved FCode support and many bugfixes. It also makes SLOF ready to be used even when specifying a kernel on the qemu command line. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de> |
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| .. | ||
| keymaps | ||
| optionrom | ||
| spapr-rtas | ||
| Makefile | ||
| README | ||
| bamboo.dtb | ||
| bamboo.dts | ||
| bios.bin | ||
| linuxboot.bin | ||
| mpc8544ds.dtb | ||
| mpc8544ds.dts | ||
| multiboot.bin | ||
| ohw.diff | ||
| openbios-ppc | ||
| openbios-sparc32 | ||
| openbios-sparc64 | ||
| palcode-clipper | ||
| petalogix-ml605.dtb | ||
| petalogix-s3adsp1800.dtb | ||
| ppc_rom.bin | ||
| pxe-e1000.rom | ||
| pxe-eepro100.rom | ||
| pxe-ne2k_pci.rom | ||
| pxe-pcnet.rom | ||
| pxe-rtl8139.rom | ||
| pxe-virtio.rom | ||
| s390-zipl.rom | ||
| sgabios.bin | ||
| slof.bin | ||
| spapr-rtas.bin | ||
| vgabios-cirrus.bin | ||
| vgabios-qxl.bin | ||
| vgabios-stdvga.bin | ||
| vgabios-vmware.bin | ||
| vgabios.bin | ||
README
- SeaBIOS (bios.bin) is the successor of pc bios. See http://www.seabios.org/ for more information. - The VGA BIOS and the Cirrus VGA BIOS come from the LGPL VGA bios project (http://www.nongnu.org/vgabios/). - The PowerPC Open Hack'Ware Open Firmware Compatible BIOS is available at http://perso.magic.fr/l_indien/OpenHackWare/index.htm. - OpenBIOS (http://www.openbios.org/) is a free (GPL v2) portable firmware implementation. The goal is to implement a 100% IEEE 1275-1994 (referred to as Open Firmware) compliant firmware. The included images for PowerPC (for 32 and 64 bit PPC CPUs), Sparc32 and Sparc64 are built from OpenBIOS SVN revision 1047. - SLOF (Slimline Open Firmware) is a free IEEE 1275 Open Firmware implementation for certain IBM POWER hardware. The sources are at https://github.com/dgibson/SLOF, and the image currently in qemu is built from git tag qemu-slof-20120111.1. - sgabios (the Serial Graphics Adapter option ROM) provides a means for legacy x86 software to communicate with an attached serial console as if a video card were attached. The master sources reside in a subversion repository at http://sgabios.googlecode.com/svn/trunk. A git mirror is available at git://git.qemu.org/sgabios.git. - The PXE roms come from the iPXE project. Built with BANNER_TIME 0. Sources available at http://ipxe.org. Vendor:Device ID -> ROM mapping: 8086:100e -> pxe-e1000.rom 8086:1209 -> pxe-eepro100.rom 1050:0940 -> pxe-ne2k_pci.rom 1022:2000 -> pxe-pcnet.rom 10ec:8139 -> pxe-rtl8139.rom 1af4:1000 -> pxe-virtio.rom - The S390 zipl loader is an addition to the official IBM s390-tools package. That fork is maintained in its own git repository at: git://repo.or.cz/s390-tools.git - The sources for the Alpha palcode image is available from: git://repo.or.cz/qemu-palcode.git