https://bugzilla.kernel.org/show_bug.cgi?id=29232 Summary: [VT-d] VT-d device passthrough fail to guest Product: Virtualization Version: unspecified Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: kvm AssignedTo: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx ReportedBy: xudong.hao@xxxxxxxxx CC: avi@xxxxxxxxxx Regression: Yes Environment: ------------ Host OS : IA32E Guest OS : IA32E kvm.git Commit: a685b38e272587e644fedd37269ddb82df21c052 qemu-kvm Commit: 671d89d6411655bb4f8058ce6eb86bb0bb8ec978 Host Kernel Version: 2.6.38-rc4 Bug detailed description: -------------------------- When assign one PCI/e device to guest, qemu report error and guest can not boot up. If do hot-add device to guest, qemu will be killed. [root@vt-nhm9 qemu-kvm]# qemu-system-x86_64 -m 512 -smp 2 -device pci-assign,host=13:00.0 -net none -hda /path/rhel5.img assigned_dev_pci_read: pread failed, ret = 0 errno = 22 Reproduce steps: ---------------- 1) install latest kvm and qemu-kvm 2) qemu-system-x86_64 -m 512 -smp 2 -device pci-assign,host=13:00.0 -net none -hda /path/rhel5.img 3) there will be a qemu error -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
