## USING HOST CPU ONLY: sudo /usr/bin/qemu-system-x86_64 -name guest="guest" -machine accel=kvm -cpu host -m 2048 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid 7e55c71a-558f-412c-8445-db0e95fc549f -display none -no-user-config -nodefaults -rtc base=utc,driftfix=slew -global kvm- pit.lost_tick_policy=delay -no-shutdown -global PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 -boot strict=on -kernel /var/lib/libvirt/images/guest/vmlinuz -initrd /var/lib/libvirt/images/guest/initrd.img -append "root=/dev/vda noresume console=tty0 console=ttyS0,38400n8 apparmor=0 net.ifnames=0 crashkernel=256M" -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/var/lib/libvirt/images/guest/disk01.ext4.qcow2,format=qcow2,if=none,id =drive-virtio-disk0 -device virtio-blk- pci,scsi=off,bus=pci.0,addr=0x3,drive=drive-virtio-disk0,id=virtio- disk0,bootindex=1 -device virtio-balloon- pci,id=balloon0,bus=pci.0,addr=0x4 -msg timestamp=on -serial stdio
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good nopl xtopology cpuid tsc_known_freq pni pclmulqdq vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch cpuid_fault invpcid_single ssbd ibrs ibpb ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx avx512f avx512dq rdseed adx smap clflushopt clwb avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves arat umip pku ospke avx512_vnni md_clear arch_capabilities bugs : spectre_v1 spectre_v2 spec_store_bypass mds ## ARCH_CAPABILITIES + MITIGATION FLAGS ARGUMENTS GIVEN sudo /usr/bin/qemu-system-x86_64 -name guest="guest" -machine accel=kvm -cpu host,arch_capabilities=on,ssbd=on,md-clear=on,rdctl-no=yes,ibrs- all=yes,skip-l1dfl-vmentry=yes -m 2048 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid 7e55c71a-558f-412c-8445-db0e95fc549f -display none -no-user-config -nodefaults -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=delay -no-shutdown -global PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 -boot strict=on -kernel /var/lib/libvirt/images/guest/vmlinuz -initrd /var/lib/libvirt/images/guest/initrd.img -append "root=/dev/vda noresume console=tty0 console=ttyS0,38400n8 apparmor=0 net.ifnames=0 crashkernel=256M" -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/var/lib/libvirt/images/guest/disk01.ext4.qcow2,format=qcow2,if=none,id =drive-virtio-disk0 -device virtio-blk- pci,scsi=off,bus=pci.0,addr=0x3,drive=drive-virtio-disk0,id=virtio- disk0,bootindex=1 -device virtio-balloon- pci,id=balloon0,bus=pci.0,addr=0x4 -msg timestamp=on -serial stdio flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good nopl xtopology cpuid tsc_known_freq pni pclmulqdq vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch cpuid_fault invpcid_single ssbd ibrs ibpb ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx avx512f avx512dq rdseed adx smap clflushopt clwb avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves arat umip pku ospke avx512_vnni md_clear arch_capabilities bugs : spectre_v1 spectre_v2 spec_store_bypass mds -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1828495 Title: [KVM][CLX] CPUID_7_0_EDX_ARCH_CAPABILITIES is not enabled in VM. To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1828495/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
