if ((change == KVM_MR_CREATE) || (change == KVM_MR_MOVE)) { 183. = kvm_iommu_map_pages(kvm, &new); 184. if (r) 185. ; 186. } 187. 188. /* actual memory is freed via old in kvm_free_physmem_slot below */ 189. if (change == KVM_MR_DELETE) { 190. .dirty_bitma...
接下来确保slots不为空,如果是KVM_MR_CREATE或者KVM_MR_MOVE,就需要重新建立映射,使用kvm_iommu_map_pages函数 ,而如果是KVM_MR_DELETE,就没必要为new设置dirty_bitmap,并对其arch字段的结构清零。最终都要执行操作install_new_memslots,不过当为delete操作时,new的memory size为0,那么看下该函数做了什么。 AI检...
添加intel_iommu=on 到 /boot/grub/grub.conf 文件中。(在我的 RedHat Linux 6上,该文件是 /boot/grub.conf)(3)重启系统,使得配置生效实际分配:(1)使用 lspci -nn 命令找到待分配的 PCI 设备。这里以一个 FC 卡为例:使用lspci 命令得到的 PCI 数字的含义,以后使用 libvirt API 分配设备时会用到:(2)...
int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot); void kvm_iommu_unmap_pages(struct kvm *kvm, struct kvm_memory_slot *slot); int kvm_iommu_map_guest(struct kvm *kvm); int kvm_iommu_unmap_guest(struct kvm *kvm); int kvm_assign_device(struct kvm *kvm, struct...
但是,KVM 本身不执行任何硬件模拟,需要客户空间程序通过 /dev/kvm 接口设置一个客户机虚拟服务器的地址空间,向它提供模拟的 I/O,并将它的视频显示映射回宿主的显示屏。目前这个应用程序是 QEMU。 Linux 上的用户空间、内核空间和虚机: Guest:客户机系统,包括CPU(vCPU)、内存、驱动(Console、网卡、I/O 设备驱动...
Additionally, you can select a vIOMMU implementation. Machine Version Each machine type is versioned in QEMU and a given QEMU binary supports many machine versions. New versions might bring support for new features, fixes or general improvements. However, they also change properties of the virtual...
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Kvm-pcipassthrough
dma-buf-map.h dma-buf.h dma-direct.h dma-direction.h dma-fence-array.h dma-fence-chain.h dma-fence.h dma-heap.h dma-iommu.h dma-map-ops.h dma-mapping.h dma-resv.h dmaengine.h dmapool.h dmar.h dmi.h dnotify.h dns_resolver.h dqblk_qtree.h dqblk_v1....
(LP: #1838116) - mmc: pxamci: fix enum type confusion - drm/vmwgfx: Don't double-free the mode stored in par->set_mode - iommu/amd: fix sg->dma_address for sg->offset bigger than PAGE_SIZE - libceph: wait for latest osdmap in ceph_monc_blacklist_add() - udf: Fix crash ...