mirror of https://gitee.com/openkylin/qemu.git
cdebec5e40
Even though hw/i386/pc.c tries to compute a valid loading address for the initrd, close to the top of RAM, this does not take into account other data that is malloced into that memory by SeaBIOS. Luckily we can easily look at the memory map to find out how much memory is used up there. This patch places the initrd in the first four gigabytes, below the first hole (as returned by INT 15h, AX=e801h). Without this patch: [ 0.000000] init_memory_mapping: [mem 0x07000000-0x07fdffff] [ 0.000000] RAMDISK: [mem 0x0710a000-0x07fd7fff] With this patch: [ 0.000000] init_memory_mapping: [mem 0x07000000-0x07fdffff] [ 0.000000] RAMDISK: [mem 0x07112000-0x07fdffff] So linuxboot is able to use the 64k that were added as padding for QEMU <= 2.1. Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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|---|---|---|
| .. | ||
| keymaps | ||
| optionrom | ||
| s390-ccw | ||
| spapr-rtas | ||
| Makefile | ||
| QEMU,cgthree.bin | ||
| QEMU,tcx.bin | ||
| README | ||
| acpi-dsdt.aml | ||
| bamboo.dtb | ||
| bamboo.dts | ||
| bios-256k.bin | ||
| bios.bin | ||
| efi-e1000.rom | ||
| efi-eepro100.rom | ||
| efi-ne2k_pci.rom | ||
| efi-pcnet.rom | ||
| efi-rtl8139.rom | ||
| efi-virtio.rom | ||
| kvmvapic.bin | ||
| linuxboot.bin | ||
| multiboot.bin | ||
| 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 | ||
| q35-acpi-dsdt.aml | ||
| qemu-icon.bmp | ||
| qemu-nsis.bmp | ||
| qemu-nsis.ico | ||
| qemu_logo.svg | ||
| qemu_logo_no_text.svg | ||
| s390-ccw.img | ||
| s390-zipl.rom | ||
| sgabios.bin | ||
| slof.bin | ||
| spapr-rtas.bin | ||
| u-boot.e500 | ||
| 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://repo.or.cz/w/openhackware.git. - 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 (including QEMU,tcx.bin and QEMU,cgthree.bin) and Sparc64 are built from OpenBIOS SVN revision 1280. - SLOF (Slimline Open Firmware) is a free IEEE 1275 Open Firmware implementation for certain IBM POWER hardware. The sources are at https://github.com/aik/SLOF, and the image currently in qemu is built from git tag qemu-slof-20140630. - 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-project.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://github.com/rth7680/qemu-palcode.git - The u-boot binary for e500 comes from the upstream denx u-boot project where it was compiled using the qemu-ppce500 target. A git mirror is available at: git://git.qemu-project.org/u-boot.git The hash used to compile the current version is: 2072e72