On Mon, Jan 25, 2016 at 12:05 PM, Adrian Davey <adr...@beth2.org> wrote: > Hi all, > > Just thought I'd share a couple of things to help people use debian on > emulated sparc64 (sun4u). > > Currently, graphics is not functioning
Interesting. This used to work with Debian 7 and older QEMU versions. Is it regression in Debian or qemu-system-sparc64/OpenBIOS ? Could you please check if Debian 7 also hangs in your setup? Regards, Artyom > so once installed using Adrian's > wonderful debian d-i iso [1] from message thread [2], you need to make sure > that systemd it not going to make modprobe load the DRM modules, else you > hang your VM. > > For DRM blacklisting: > > debian-sparc64:#$ cat /etc/modprobe.d/drm-blacklist.conf > > # blacklist of DRM modules that do not load on qemu-system-sparc64 sun4u > blacklist drm > blacklist bochs-drm > blacklist ttm > > For sanity, loading initrd at 4.0MB rather than 14MB+: > > edit /etc/initramfs-tools/initramfs.conf to not install every module > #MODULES=most > MODULES=dep > > > I found having the following entry in /etc/silo.conf rather handy for > debugging the last couple of weeks: > > image = /vmlinuz > label = linux-emergency > append = "initrd=/initrd.img root=/dev/sda1 > systemd.unit=emergency.target" > > I prefer to run VMs using libvirt, and use the gui from virt-manager so I > use the following xml in virsh, hope this helps other people. If you edit > the VM config be sure to check what pci slots are automatically reset to > lower numbers that then collide with predefined machine config in > qemu-system-sparc64. > > <!-- > WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE > OVERWRITTEN AND LOST. Changes to this xml configuration should be made > using: > virsh edit debian-unstable-sparc64 > or other application using the libvirt API. > --> > > <domain type='qemu'> > <name>debian-unstable-sparc64</name> > <uuid>ccd8b5c2-b8e4-4d5e-af19-9322cd8e55bf</uuid> > <memory unit='KiB'>1048576</memory> > <currentMemory unit='KiB'>1048576</currentMemory> > <vcpu placement='static'>1</vcpu> > <resource> > <partition>/machine</partition> > </resource> > <os> > <type arch='sparc64' machine='sun4u'>hvm</type> > </os> > <clock offset='utc'/> > <on_poweroff>destroy</on_poweroff> > <on_reboot>restart</on_reboot> > <on_crash>destroy</on_crash> > <devices> > <emulator>/usr/bin/qemu-system-sparc64</emulator> > <disk type='file' device='disk'> > <driver name='qemu' type='qcow2' cache='none' io='native'/> > <source > file='/path/to/vm/images/default/debian-unstable-sparc64.qcow2'/> > <target dev='hda' bus='ide'/> > <boot order='1'/> > <address type='drive' controller='0' bus='0' target='0' unit='0'/> > </disk> > <disk type='block' device='cdrom'> > <driver name='qemu' type='raw' cache='none' io='native'/> > <target dev='hdc' bus='ide'/> > <readonly/> > <address type='drive' controller='0' bus='1' target='0' unit='0'/> > </disk> > <controller type='ide' index='0'/> > <controller type='usb' index='0'> > <address type='pci' domain='0x0000' bus='0x00' slot='0x06' > function='0x0'/> > </controller> > <controller type='pci' index='0' model='pci-root'/> > <interface type='network'> > <mac address='52:54:00:ce:98:e8'/> > <source network='default'/> > <model type='virtio'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x09' > function='0x0'/> > </interface> > <serial type='pty'> > <target port='0'/> > </serial> > <console type='pty'> > <target type='serial' port='0'/> > </console> > <video> > <model type='vga' vram='16384' heads='1'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x07' > function='0x0'/> > </video> > <memballoon model='none'/> > </devices> > </domain> > > Enjoy debian on emulated sparc64. Is it fast? Erm no, but it is fun and a > useful way to test d-i images. I am sure that booting off IDE for silo, > kernel and initrd and then using virtio disks would make things better for > IO, but not tried it yet. I think single threaded qemu sparc64 cpu is more > the limiting factor, however. > > Thanks go to the debian sparc porters and the qemu developers! > > Regards, > > Adrian > > > > [1] > https://people.debian.org/~glaubitz/debian-cd/debian-9.0-sparc64-NETINST-1.iso > [2] https://lists.debian.org/debian-sparc/2016/01/msg00097.html > -- Regards, Artyom Tarasenko SPARC and PPC PReP under qemu blog: http://tyom.blogspot.com/search/label/qemu