Public bug reported: Hello, I am trying to find out why my VM wont run with the memory-backend-epc module. Despite having SGX enabled on my host. I did a little bug issue on the upstream which was just merged into upstream: https://gitlab.com/libvirt/libvirt/-/issues/751
I am wondering if this can be backported to the stable release as well? I also have the question here : https://askubuntu.com/questions/1542027/sgx-passthrough-to-qemu-vm- ubuntu-24-04/1542366#1542366 For more information on the bug itself: Software environment - Architecture: x86_x64 - kernel version: 6.8.0-53-generic - libvirt version: libvirt 10.0.0 - Operating system: 24.04 LTS (Ubuntu 24.04.2 LTS) - Hypervisor and version: QEMU 8.2.2 Following the official documentation I add the module ``` <memory model='sgx-epc'> <target> <size unit='KiB'>16384</size> </target> </memory> ``` But run into this error: ``` Error starting domain: internal error: QEMU unexpectedly closed the monitor (vm='ubuntu24.04'): 2025-02-21T17:27:05.276761Z qemu-system-x86_64: invalid object type: memory-backend-epc Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line 72, in cb_wrapper callback(asyncjob, *args, **kwargs) File "/usr/share/virt-manager/virtManager/asyncjob.py", line 108, in tmpcb callback(*args, **kwargs) File "/usr/share/virt-manager/virtManager/object/libvirtobject.py", line 57, in newfn ret = fn(self, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/share/virt-manager/virtManager/object/domain.py", line 1402, in startup self._backend.create() File "/usr/lib/python3/dist-packages/libvirt.py", line 1379, in create raise libvirtError('virDomainCreate() failed') libvirt.libvirtError: internal error: QEMU unexpectedly closed the monitor (vm='ubuntu24.04'): 2025-02-21T17:27:05.276761Z qemu-system-x86_64: invalid object type: memory-backend-epc ``` Steps to reproduce - Setup SGX on host machine - Setup virsh and then configure vm, add XML tags for SGX in CPU and add memory-backend-epc module. - Run the VM. Additional Information: My XML config ``` <domain type="kvm"> <name>ubuntu24.04</name> <uuid>87cd126a-047f-4b41-938f-2d19ee19d198</uuid> <metadata> <libosinfo:libosinfo xmlns:libosinfo="http://libosinfo.org/xmlns/libvirt/domain/1.0";> <libosinfo:os id="http://ubuntu.com/ubuntu/24.04"/> </libosinfo:libosinfo> </metadata> <maxMemory slots="16" unit="KiB">82313216</maxMemory> <memory unit="KiB">65650688</memory> <currentMemory unit="KiB">65634304</currentMemory> <vcpu placement="static">10</vcpu> <os> <type arch="x86_64" machine="pc-q35-8.2">hvm</type> <boot dev="hd"/> </os> <features> <acpi/> <apic/> <vmport state="off"/> </features> <cpu mode="host-passthrough" check="none" migratable="on"> <feature policy="require" name="sgx"/> <feature policy="require" name="sgxlc"/> <feature policy="require" name="sgx1"/> <feature policy="require" name="sgx2"/> <feature policy="require" name="sgx-exinfo"/> <feature policy="require" name="sgx-debug"/> <feature policy="require" name="sgx-mode64"/> <feature policy="require" name="sgx-provisionkey"/> <feature policy="require" name="sgx-tokenkey"/> <feature policy="require" name="sgx-kss"/> <feature policy="require" name="sgx-edeccssa"/> <feature policy="require" name="sgx-aex-notify"/> <numa> <cell id="0" cpus="0-9" memory="65634304" unit="KiB"/> </numa> </cpu> <clock offset="utc"> <timer name="rtc" tickpolicy="catchup"/> <timer name="pit" tickpolicy="delay"/> <timer name="hpet" present="no"/> </clock> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <pm> <suspend-to-mem enabled="no"/> <suspend-to-disk enabled="no"/> </pm> <devices> <emulator>/usr/bin/qemu-system-x86_64</emulator> <disk type="file" device="disk"> <driver name="qemu" type="qcow2" discard="unmap"/> <source file="/var/lib/libvirt/images/ubuntu24.04.qcow2"/> <target dev="vda" bus="virtio"/> <address type="pci" domain="0x0000" bus="0x04" slot="0x00" function="0x0"/> </disk> <disk type="file" device="cdrom"> <driver name="qemu" type="raw"/> <target dev="sda" bus="sata"/> <readonly/> <address type="drive" controller="0" bus="0" target="0" unit="0"/> </disk> <controller type="usb" index="0" model="qemu-xhci" ports="15"> <address type="pci" domain="0x0000" bus="0x02" slot="0x00" function="0x0"/> </controller> <controller type="pci" index="0" model="pcie-root"/> <controller type="pci" index="1" model="pcie-root-port"> <model name="pcie-root-port"/> <target chassis="1" port="0x10"/> <address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x0" multifunction="on"/> </controller> <controller type="pci" index="2" model="pcie-root-port"> <model name="pcie-root-port"/> <target chassis="2" port="0x11"/> <address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x1"/> </controller> <controller type="pci" index="3" model="pcie-root-port"> <model name="pcie-root-port"/> <target chassis="3" port="0x12"/> <address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x2"/> </controller> <controller type="pci" index="4" model="pcie-root-port"> <model name="pcie-root-port"/> <target chassis="4" port="0x13"/> <address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x3"/> </controller> <controller type="pci" index="5" model="pcie-root-port"> <model name="pcie-root-port"/> <target chassis="5" port="0x14"/> <address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x4"/> </controller> <controller type="pci" index="6" model="pcie-root-port"> <model name="pcie-root-port"/> <target chassis="6" port="0x15"/> <address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x5"/> </controller> <controller type="pci" index="7" model="pcie-root-port"> <model name="pcie-root-port"/> <target chassis="7" port="0x16"/> <address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x6"/> </controller> <controller type="pci" index="8" model="pcie-root-port"> <model name="pcie-root-port"/> <target chassis="8" port="0x17"/> <address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x7"/> </controller> <controller type="pci" index="9" model="pcie-root-port"> <model name="pcie-root-port"/> <target chassis="9" port="0x18"/> <address type="pci" domain="0x0000" bus="0x00" slot="0x03" function="0x0" multifunction="on"/> </controller> <controller type="pci" index="10" model="pcie-root-port"> <model name="pcie-root-port"/> <target chassis="10" port="0x19"/> <address type="pci" domain="0x0000" bus="0x00" slot="0x03" function="0x1"/> </controller> <controller type="pci" index="11" model="pcie-root-port"> <model name="pcie-root-port"/> <target chassis="11" port="0x1a"/> <address type="pci" domain="0x0000" bus="0x00" slot="0x03" function="0x2"/> </controller> <controller type="pci" index="12" model="pcie-root-port"> <model name="pcie-root-port"/> <target chassis="12" port="0x1b"/> <address type="pci" domain="0x0000" bus="0x00" slot="0x03" function="0x3"/> </controller> <controller type="pci" index="13" model="pcie-root-port"> <model name="pcie-root-port"/> <target chassis="13" port="0x1c"/> <address type="pci" domain="0x0000" bus="0x00" slot="0x03" function="0x4"/> </controller> <controller type="pci" index="14" model="pcie-root-port"> <model name="pcie-root-port"/> <target chassis="14" port="0x1d"/> <address type="pci" domain="0x0000" bus="0x00" slot="0x03" function="0x5"/> </controller> <controller type="sata" index="0"> <address type="pci" domain="0x0000" bus="0x00" slot="0x1f" function="0x2"/> </controller> <controller type="virtio-serial" index="0"> <address type="pci" domain="0x0000" bus="0x03" slot="0x00" function="0x0"/> </controller> <interface type="network"> <mac address="52:54:00:1b:f4:13"/> <source network="default"/> <model type="virtio"/> <address type="pci" domain="0x0000" bus="0x01" slot="0x00" function="0x0"/> </interface> <serial type="pty"> <target type="isa-serial" port="0"> <model name="isa-serial"/> </target> </serial> <console type="pty"> <target type="serial" port="0"/> </console> <channel type="unix"> <target type="virtio" name="org.qemu.guest_agent.0"/> <address type="virtio-serial" controller="0" bus="0" port="1"/> </channel> <channel type="spicevmc"> <target type="virtio" name="com.redhat.spice.0"/> <address type="virtio-serial" controller="0" bus="0" port="2"/> </channel> <input type="tablet" bus="usb"> <address type="usb" bus="0" port="1"/> </input> <input type="mouse" bus="ps2"/> <input type="keyboard" bus="ps2"/> <graphics type="spice" autoport="yes"> <listen type="address"/> </graphics> <sound model="ich9"> <address type="pci" domain="0x0000" bus="0x00" slot="0x1b" function="0x0"/> </sound> <audio id="1" type="spice"/> <video> <model type="qxl" ram="65536" vram="65536" vgamem="16384" heads="1" primary="yes"/> <address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x0"/> </video> <redirdev bus="usb" type="spicevmc"> <address type="usb" bus="0" port="2"/> </redirdev> <redirdev bus="usb" type="spicevmc"> <address type="usb" bus="0" port="3"/> </redirdev> <watchdog model="itco" action="reset"/> <memballoon model="virtio"> <address type="pci" domain="0x0000" bus="0x05" slot="0x00" function="0x0"/> </memballoon> <rng model="virtio"> <backend model="random">/dev/urandom</backend> <address type="pci" domain="0x0000" bus="0x06" slot="0x00" function="0x0"/> </rng> <memory model="sgx-epc"> <target> <size unit="KiB">16384</size> </target> </memory> </devices> </domain> ``` ** Affects: libvirt (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2100024 Title: SGX EPC passthrough, cannot add memory module=sgx-epc To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/2100024/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
