On 07/03/2023 17:17, David Woodhouse wrote:
From: David Woodhouse <[email protected]>Now that all the work is done to enable the PV backends to work without actual Xen, instantiate the bus from pc_basic_device_init() for emulated mode. This allows us finally to launch an emulated Xen guest with PV disk. qemu-system-x86_64 -serial mon:stdio -M q35 -cpu host -display none \ -m 1G -smp 2 -accel kvm,xen-version=0x4000a,kernel-irqchip=split \ -kernel bzImage -append "console=ttyS0 root=/dev/xvda1" \ -drive file=/var/lib/libvirt/images/fedora28.qcow2,if=none,id=disk \ -device xen-disk,drive=disk,vdev=xvda If we use -M pc instead of q35, we can even add an IDE disk and boot a guest image normally through grub. But q35 gives us AHCI and that isn't unplugged by the Xen magic, so the guests ends up seeing "both" disks. Signed-off-by: David Woodhouse <[email protected]> Reviewed-by: Paul Durrant <[email protected]> --- hw/i386/pc.c | 7 +++++++ 1 file changed, 7 insertions(+)
Also... Tested-by: Paul Durrant <[email protected]> ... on real Xen (master branch, 4.18) with a Debian guest.
