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| author | David Woodhouse <dwmw@amazon.co.uk> | 2023-02-15 16:10:00 +0100 |
|---|---|---|
| committer | David Woodhouse <dwmw@amazon.co.uk> | 2023-03-07 17:04:30 +0000 |
| commit | a78c54c4f92c38d32211990b7b23b417fbfde8d1 (patch) | |
| tree | 56758647a1bde46bbfc34d1999dd25ee27c4a3be /hw/i386 | |
| parent | de26b26197895857631863e6dea575b91e86f6d5 (diff) | |
| download | qemu-a78c54c4f92c38d32211990b7b23b417fbfde8d1.zip qemu-a78c54c4f92c38d32211990b7b23b417fbfde8d1.tar.gz qemu-a78c54c4f92c38d32211990b7b23b417fbfde8d1.tar.bz2 | |
i386/xen: Initialize Xen backends from pc_basic_device_init() for emulation
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 <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
Diffstat (limited to 'hw/i386')
| -rw-r--r-- | hw/i386/pc.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 7bebea5..1489abf 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -102,6 +102,11 @@ #include "trace.h" #include CONFIG_DEVICES +#ifdef CONFIG_XEN_EMU +#include "hw/xen/xen-legacy-backend.h" +#include "hw/xen/xen-bus.h" +#endif + /* * Helper for setting model-id for CPU models that changed model-id * depending on QEMU versions up to QEMU 2.4. @@ -1318,6 +1323,8 @@ void pc_basic_device_init(struct PCMachineState *pcms, if (pcms->bus) { pci_create_simple(pcms->bus, -1, "xen-platform"); } + xen_bus_init(); + xen_be_init(); } #endif |