On Fri, May 22, 2020 at 5:54 AM Paul Durrant <xadimg...@gmail.com> wrote: > > > -----Original Message----- > > From: Xen-devel <xen-devel-boun...@lists.xenproject.org> On Behalf Of > > George Dunlap > > Sent: 22 May 2020 10:11 > > To: Jason Andryuk <jandr...@gmail.com> > > Cc: Stefano Stabellini <sstabell...@kernel.org>; Julien Grall > > <jul...@xen.org>; Samuel Thibault > > <samuel.thiba...@ens-lyon.org>; Wei Liu <w...@xen.org>; Andrew Cooper > > <andrew.coop...@citrix.com>; Jan > > Beulich <jbeul...@suse.com>; Ian Jackson <ian.jack...@citrix.com>; Anthony > > Perard > > <anthony.per...@citrix.com>; xen-devel <xen-devel@lists.xenproject.org>; > > Daniel De Graaf > > <dgde...@tycho.nsa.gov> > > Subject: Re: [PATCH v7 00/19] Add support for qemu-xen runnning in a > > Linux-based stubdomain > > > > > > > On May 19, 2020, at 2:54 AM, Jason Andryuk <jandr...@gmail.com> wrote: > > > > > > General idea is to allow freely set device_model_version and > > > device_model_stubdomain_override and choose the right options based on > > > this > > > choice. Also, allow to specific path to stubdomain kernel/ramdisk, for > > > greater > > > flexibility. > > > > Excited to see this patch series get in. But I didn’t really notice any > > documents explaining how to > > actually use it — is there a blog post anywhere describing how to get the > > kernel / initrd image and so > > on?
Yeah, it's not really collected anywhere, but below are the quick start instructions. The cover letter mentioned this repo (forked from Marek's): https://github.com/jandryuk/qubes-vmm-xen-stubdom-linux (branch initramfs-tools, tag for-upstream-v6) clone it and then run: $ make get-sources $ make -f Makefile.stubdom output: kernel: build/linux/arch/x86/boot/bzImage ramdisk: build/rootfs/stubdom-linux-rootfs To make them available system wide, copy to /usr/lib/xen/boot/qemu-stubdom-linux-kernel and /usr/lib/xen/boot/qemu-stubdom-linux-rootfs respectively. Obviously this should match your installation's "$lib/xen/boot/" location. A second option is to set paths to those files manually in a VM's xl.cfg with stubdomain_kernel="/path" and stubdomain_ramdisk="/path" Update your xl configuration with: device_model_stubdomain_override = 1 device_model_version = "qemu-xen" Start the domain and that should be it. Maybe additionally use serial = "pty" to access the VM with `xl console -t serial $NAME`. Some limitations are here: https://xenbits.xen.org/gitweb/?p=xen.git;a=blob;f=docs/misc/stubdom.txt;h=c717a95d17d2e562639a5574e89df3c4db8712fa;hb=HEAD#l124 Limitations: - PCI passthrough require permissive mode - only one nic is supported - at most 26 emulated disks are supported (more are still available as PV disks) - graphics output (VNC/SDL/Spice) not supported > > Also, would it be possible to add a follow-up series which modifies > > SUPPORT.md and CHANGELOG.md? > > Yes please. In future I think we should encourage the patch to CHANGELOG.md > to be the last patch of a series such as this. I can do this. What is the SUPPORT status for this? Regards, Jason
