Description of problem: Recent seabios doesn't fit into 128k any more. Switch to 256k for rhel7 machine types. rhel6 machine types must stay at 128k for compatibility reasons. No very urgent needed as the rhel7 bios has some hardware support disabled and is a bit smaller than upstream. We'll get it from upstream with the 7.1 rebase though, and having all rhel7 machine types use the same bios size will simplify things, so backporting to 7.0 looks useful nevertheless.
http://patchwork.ozlabs.org/patch/295905/ http://patchwork.ozlabs.org/patch/295908/
patches posted.
Fix included in qemu-kvm-1.5.3-38.el7
Reproduce this bug as follow version: Host: # uname -r 3.10.0-61.el7.x86_64 # rpm -q qemu-kvm qemu-kvm-1.5.3-21.el7.x86_64 #rpm -q seabios seabios-1.7.2.2-4.el7.x86_64 # ls -l /usr/share/seabios total 128 -rw-r--r--. 1 root root 131072 Nov 5 09:25 bios.bin verify this bug on latest version: Host # rpm -q qemu-kvm qemu-kvm-1.5.3-38.el7.x86_64 seabios-1.7.2.2-9.el7.x86_64 Steps: # ls -l /usr/share/seabios total 384 -rw-r--r--. 1 root root 262144 Jan 15 14:13 bios-256k.bin -rw-r--r--. 1 root root 131072 Jan 15 14:13 bios.bin Addtional test on latest version test: *senaro 1) 1.Boot guest with "-M rhel6.5.0/rhel6.4.0/rhel6.3.0/rhel6.2.0/rhel6.1.0/rhel6.0.0" 2.(qemu)info roms Results: (qemu) info roms fw=genroms/kvmvapic.bin size=0x002400 name="kvmvapic.bin" addr=00000000fffe0000 size=0x020000 mem=rom name="bios.bin"---->using bios.bin *senaro 2) 1.Boot guest with "-M pc/pc-i440fx-rhel7.0.0/q35/pc-q35-rhel7.0.0 Results: (qemu) info roms /rom@genroms/kvmvapic.bin size=0x002400 name="kvmvapic.bin" addr=00000000fffc0000 size=0x040000 mem=rom name="bios-256k.bin"--->using bios-256k.bin /rom@etc/acpi/tables size=0x003000 name="etc/acpi/tables" /rom@etc/table-loader size=0x001000 name="etc/table-loader" According to above test ,this bug has been fixed.
This request was resolved in Red Hat Enterprise Linux 7.0. Contact your manager or support representative in case you have further questions about the request.