Hmm, I realize we have a different behaviour when building devices as modules shared by different qemu system binaries.
It will attempt to load any kind of modules:
./qemu-system-m68k -kernel ~/Downloads/vmlinux-5.8.0-3-m68k -device virtio-gpu-pci
Failed to open module: /home/elmarco/src/qemu/buildnodoc/hw-display-virtio-gpu-pci.so: undefined symbol: virtio_instance_init_common
qemu-system-m68k: -device virtio-gpu-pci: 'virtio-gpu-pci' is not a valid device model name
And this is not a new problem, for example with qemu 5.1.0-5.fc33:
$ qemu-system-m68k -device help
Failed to open module: /usr/lib64/qemu/hw-usb-smartcard.so: undefined symbol: ccid_card_send_apdu_to_guest
Failed to open module: /usr/lib64/qemu/hw-display-qxl.so: undefined symbol: vga_ioport_read
...
What would be the solution? load modules from an arch-specific directory? link to a common shared library location? Ex:
/usr/lib64/qemu/x86_64/hw-usb-smartcard.so -> /usr/lib64/qemu/hw-usb-smartcard.so
---
util/module.c | 3 +++
hw/display/meson.build | 11 +++++++++--
2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/util/module.c b/util/module.c
index fe3b82dd4d37..9490f975d303 100644
--- a/util/module.c
+++ b/util/module.c
@@ -301,6 +301,9 @@ static struct {
{ "qxl", "hw-", "display-qxl" },
{ "virtio-gpu-device", "hw-", "display-virtio-gpu" },
{ "vhost-user-gpu", "hw-", "display-virtio-gpu" },
+ { "virtio-gpu-pci-base", "hw-", "display-virtio-gpu-pci" },
+ { "virtio-gpu-pci", "hw-", "display-virtio-gpu-pci" },
+ { "vhost-user-gpu-pci", "hw-", "display-virtio-gpu-pci" },
{ "chardev-braille", "chardev-", "baum" },
{ "chardev-spicevmc", "chardev-", "spice" },
{ "chardev-spiceport", "chardev-", "spice" },
diff --git a/hw/display/meson.build b/hw/display/meson.build
index 0d5ddecd6503..669935371335 100644
--- a/hw/display/meson.build
+++ b/hw/display/meson.build
@@ -62,8 +62,15 @@ if config_all_devices.has_key('CONFIG_VIRTIO_GPU')
hw_display_modules += {'virtio-gpu': virtio_gpu_ss}
endif
-softmmu_ss.add(when: ['CONFIG_VIRTIO_GPU', 'CONFIG_VIRTIO_PCI'], if_true: files('virtio-gpu-pci.c'))
-softmmu_ss.add(when: ['CONFIG_VHOST_USER_GPU', 'CONFIG_VIRTIO_PCI'], if_true: files('vhost-user-gpu-pci.c'))
+if config_all_devices.has_key('CONFIG_VIRTIO_PCI')
+ virtio_gpu_pci_ss = ss.source_set()
+ virtio_gpu_pci_ss.add(when: ['CONFIG_VIRTIO_GPU', 'CONFIG_VIRTIO_PCI'],
+ if_true: [files('virtio-gpu-pci.c'), pixman])
+ virtio_gpu_pci_ss.add(when: ['CONFIG_VHOST_USER_GPU', 'CONFIG_VIRTIO_PCI'],
+ if_true: files('vhost-user-gpu-pci.c'))
+ hw_display_modules += {'virtio-gpu-pci': virtio_gpu_pci_ss}
+endif
+
softmmu_ss.add(when: 'CONFIG_VIRTIO_VGA', if_true: files('virtio-vga.c'))
softmmu_ss.add(when: 'CONFIG_VHOST_USER_VGA', if_true: files('vhost-user-vga.c'))
--
2.27.0