->vfio_pci_hot_reset_one(vdev)//See if we can do our own bus reset ->ioctl(vdev->vbasedev.fd, VFIO_DEVICE_GET_PCI_HOT_RESET_INFO, info); ->ioctl(vdev->vbasedev.fd, VFIO_DEVICE_PCI_HOT_RESET, reset)//bus reset ->ioctl(vdev->vbasedev.fd, VFIO_DEVICE_RESET) //has_pm_...
分配一个新的ModuleEntry,将该entry的init函数设置为register_vfio_pci_dev_type,类型设置为MODULE_INIT_QOM,并将该entry插入到类型为MODULE_INIT_QOM 的 ModuleTypeList 中。在QEMU在main.c(vl.c) 的一开始执行了 module_call_init(MODULE_INIT_QOM) ,它从 init_type_list 中取出对应的 ModuleTypeList ,...
sub-device-id=<hex id> Override PCI subsystem device ID visible to guest sub-vendor-id=<hex id> Override PCI subsystem vendor ID visible to guest vendor-id=<hex id> Override PCI vendor ID visible to guest x-vga=<boolean> (default = 0) Enable vfio-vga device support. hotplug...
-devicepci-ipmi-bt,bmc=id Like the KCS interface, but defines a BT interface on the PCI bus. -deviceintel-iommu[,option=...] This is only supported by , which will enable Intel VT-d emulation within the guest. It supports below options:-machineq35intremap=on|off(default: auto)This en...
[ 2.434614] VFIO - User Level meta-driver version: 0.3 [ 2.443359] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 2.443850] ehci-pci: EHCI PCI platform driver [ 2.444338] ehci-platform: EHCI generic platform driver [ 2.444743] ehci-orion: EHCI orion driver ...
order to kick the guest. The KVM kernel module has a feature called irqfd which allows an eventfd to trigger guest interrupts. QEMU userspace registers an irqfd for the virtio PCI device interrupt and hands it to the vhost instance. This is how the vhost worker thread can interrupt the ...
static intassigned_initfn(struct PCIDevice *pci_dev) { AssignedDevice *dev =DO_UPCAST(AssignedDevice, dev, pci_dev); //对config空间的虚拟寄存做初始化, 将寄存器的值存在软件变量dev 的emulate_config_read 和emulate_config_write中 assigned_dev_emulate_config_read(dev, 0,PCI_CONFIG_SPACE_SIZE);...
kvm_reset_vcpu(kvm->vcpus);while(1) { printf("KVM start run\n");ret=ioctl(kvm->vcpus->vcpu_fd, KVM_RUN,0);if(ret <0) { fprintf(stderr,"KVM_RUN failed\n"); exit(1); }switch(kvm->vcpus->kvm_run->exit_reason) {caseKVM_EXIT_UNKNOWN: ...
It is required for ``-device vfio-pci`` to work with the VT-d device, because host assigned devices requires to setup the DMA mapping on the host before guest DMA starts. ``device-iotlb=on|off`` (default: off) This enables device-iotlb capability for the emulated VT-d device. So ...
It is required for ``-device vfio-pci`` to work with the VT-d device, because host assigned devices requires to setup the DMA mapping on the host before guest DMA starts. ``device-iotlb=on|off`` (default: off) This enables device-iotlb capability for the emulated VT-d device. ...