diff options
Diffstat (limited to 'core/modules/qemu')
| -rw-r--r-- | core/modules/qemu/runvirt-plugin-qemu/src/main/java/org/openslx/runvirt/plugin/qemu/configuration/TransformationSpecificQemuGpuPassthroughNvidia.java | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/core/modules/qemu/runvirt-plugin-qemu/src/main/java/org/openslx/runvirt/plugin/qemu/configuration/TransformationSpecificQemuGpuPassthroughNvidia.java b/core/modules/qemu/runvirt-plugin-qemu/src/main/java/org/openslx/runvirt/plugin/qemu/configuration/TransformationSpecificQemuGpuPassthroughNvidia.java index e06c4419..23e5fe18 100644 --- a/core/modules/qemu/runvirt-plugin-qemu/src/main/java/org/openslx/runvirt/plugin/qemu/configuration/TransformationSpecificQemuGpuPassthroughNvidia.java +++ b/core/modules/qemu/runvirt-plugin-qemu/src/main/java/org/openslx/runvirt/plugin/qemu/configuration/TransformationSpecificQemuGpuPassthroughNvidia.java @@ -12,6 +12,7 @@ import org.openslx.libvirt.domain.device.HostdevPciDeviceAddress; import org.openslx.libvirt.domain.device.HostdevPciDeviceDescription; import org.openslx.libvirt.domain.device.Shmem; import org.openslx.libvirt.domain.device.Video; +import org.openslx.libvirt.domain.device.Device; import org.openslx.libvirt.domain.device.Graphics.ListenType; import org.openslx.runvirt.plugin.qemu.cmdln.CommandLineArgs; import org.openslx.runvirt.plugin.qemu.virtualization.LibvirtHypervisorQemu; @@ -212,12 +213,36 @@ public class TransformationSpecificQemuGpuPassthroughNvidia final String errorMsg = "IOMMU support is not available on the hypervisor but required for GPU passthrough!"; throw new TransformationException( errorMsg ); } + // Check config for PCI addresses already in use + boolean inUse[] = new boolean[ 64 ]; + inUse[0] = true; + inUse[1] = true; + for ( Device dev : config.getDevices() ) { + HostdevPciDeviceAddress target = dev.getPciTarget(); + if ( target == null ) + continue; + if ( target.getPciDomain() != 0 || target.getPciBus() != 0 ) + continue; // Ignore non-primary bus + if ( target.getPciDevice() >= inUse.length ) + continue; + inUse[target.getPciDevice()] = true; + } + // Use first free one. Usually 00:02:00 is primary VGA + int devAddr; + for ( devAddr = 0; devAddr < inUse.length; ++devAddr ) { + if ( !inUse[devAddr] ) + break; + } // passthrough PCI devices of the GPU for ( final HostdevPciDeviceAddress pciDeviceAddress : pciDeviceAddresses ) { final HostdevPci pciDevice = config.addHostdevPciDevice(); pciDevice.setManaged( true ); pciDevice.setSource( pciDeviceAddress ); + if ( pciDeviceAddress.getPciFunction() == 0 && pciDeviceAddresses.size() > 1 ) { + pciDevice.setMultifunction( true ); + } + pciDevice.setPciTarget( new HostdevPciDeviceAddress( 0, devAddr, pciDeviceAddress.getPciFunction() ) ); } // add shared memory device for Looking Glass |