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+KVM on 16.04.3 throws an error
+
+Problem Description

+====================

+KVM on Ubuntu 16.04.3 throws an error when used

+ 

+---uname output---

+Linux bastion-1 4.4.0-89-generic #112-Ubuntu SMP Mon Jul 31 19:37:08 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux

+ 

+Machine Type =  8348-21C Habanero 

+ 

+---Steps to Reproduce---

+ Install 16.04.3

+

+install KVM like:

+

+apt-get install libvirt-bin qemu qemu-slof qemu-system qemu-utils

+

+then exit and log back in so virsh will work without sudo

+

+then run my spawn script

+

+$ cat spawn.sh

+#!/bin/bash

+

+img=$1

+qemu-system-ppc64 \

+-machine pseries,accel=kvm,usb=off -cpu host -m 512 \

+-display none -nographic \

+-net nic -net user \

+-drive "file=$img"

+

+with a freshly downloaded ubuntu cloud image

+

+sudo ./spawn.sh xenial-server-cloudimg-ppc64el-disk1.img

+

+And I get nothing on the output.

+

+and errors in dmesg

+

+

+ubuntu@bastion-1:~$ [  340.180295] Facility 'TM' unavailable, exception at 0xd0000000148b7f10, MSR=9000000000009033

+[  340.180399] Oops: Unexpected facility unavailable exception, sig: 6 [#1]

+[  340.180513] SMP NR_CPUS=2048 NUMA PowerNV

+[  340.180547] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables kvm_hv kvm binfmt_misc joydev input_leds mac_hid opal_prd ofpart cmdlinepart powernv_flash ipmi_powernv ipmi_msghandler mtd at24 uio_pdrv_genirq uio ibmpowernv powernv_rng vmx_crypto ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 raid0 multipath linear mlx4_en hid_generic usbhid hid uas usb_storage ast i2c_algo_bit bnx2x ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops mlx4_core drm ahci vxlan libahci ip6_udp_tunnel udp_tunnel mdio libcrc32c

+[  340.181331] CPU: 46 PID: 5252 Comm: qemu-system-ppc Not tainted 4.4.0-89-generic #112-Ubuntu

+[  340.181382] task: c000001e34c30b50 ti: c000001e34ce4000 task.ti: c000001e34ce4000

+[  340.181432] NIP: d0000000148b7f10 LR: d000000014822a14 CTR: d0000000148b7e40

+[  340.181475] REGS: c000001e34ce77b0 TRAP: 0f60   Not tainted  (4.4.0-89-generic)

+[  340.181519] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE>  CR: 22024848  XER: 00000000

+[  340.181629] CFAR: d0000000148b7ea4 SOFTE: 1 

+GPR00: d000000014822a14 c000001e34ce7a30 d0000000148cc018 c000001e37bc0000 

+GPR04: c000001db9ac0000 c000001e34ce7bc0 0000000000000000 0000000000000000 

+GPR08: 0000000000000001 c000001e34c30b50 0000000000000001 d0000000148278f8 

+GPR12: d0000000148b7e40 c00000000fb5b500 0000000000000000 000000000000001f 

+GPR16: 00003fff91c30000 0000000000800000 00003fffa8e34390 00003fff9242f200 

+GPR20: 00003fff92430010 000001001de5c030 00003fff9242eb60 00000000100c1ff0 

+GPR24: 00003fffc91fe990 00003fff91c10028 0000000000000000 c000001e37bc0000 

+GPR28: 0000000000000000 c000001db9ac0000 c000001e37bc0000 c000001db9ac0000 

+[  340.182315] NIP [d0000000148b7f10] kvmppc_vcpu_run_hv+0xd0/0xff0 [kvm_hv]

+[  340.182357] LR [d000000014822a14] kvmppc_vcpu_run+0x44/0x60 [kvm]

+[  340.182394] Call Trace:

+[  340.182413] [c000001e34ce7a30] [c000001e34ce7ab0] 0xc000001e34ce7ab0 (unreliable)

+[  340.182468] [c000001e34ce7b70] [d000000014822a14] kvmppc_vcpu_run+0x44/0x60 [kvm]

+[  340.182522] [c000001e34ce7ba0] [d00000001481f674] kvm_arch_vcpu_ioctl_run+0x64/0x170 [kvm]

+[  340.182581] [c000001e34ce7be0] [d000000014813918] kvm_vcpu_ioctl+0x528/0x7b0 [kvm]

+[  340.182634] [c000001e34ce7d40] [c0000000002fffa0] do_vfs_ioctl+0x480/0x7d0

+[  340.182678] [c000001e34ce7de0] [c0000000003003c4] SyS_ioctl+0xd4/0xf0

+[  340.182723] [c000001e34ce7e30] [c000000000009204] system_call+0x38/0xb4

+[  340.182766] Instruction dump:

+[  340.182788] e92d02a0 e9290a50 e9290108 792a07e3 41820058 e92d02a0 e9290a50 e9290108 

+[  340.182863] 7927e8a4 78e71f87 40820ed8 e92d02a0 <7d4022a6> f9490ee8 e92d02a0 7d4122a6 

+[  340.182938] ---[ end trace bc5080cb7d18f102 ]---

+[  340.276202] 

+

+

+This was with the latest ubuntu cloud image. I get the same thing when trying to use virt-install with an ISO image. 

+

+I have no way of loading a KVM on 16.04.3

+

+== Comment: #2 - Jason M. Furmanek <email address hidden> - 2017-08-09 17:42:34 ==

+I reinstalled with the HWE kernel (4.10).

+I can install VM and see the console and eveything seems fine.

+

+== Comment: #3 - Jason M. Furmanek <email address hidden> - 2017-08-09 17:44:03 ==

+I had another system at 16.04.2 (4.4) and updated that one to the latest and it hit the same issue as above.

+No qemu or libvirt updates were applied. Just kernel updates and a handful of other stuff.

+

+Seems this issue is specific to the latest kernel

+

+old version worked:

+Linux fs7 4.4.0-83-generic #106

+

+new version did not:

+Linux fs7 4.4.0-89-generic #112-Ubuntu

+

+== Comment: #4 - Gustavo Bueno Romero <email address hidden> - 2017-08-09 20:26:42 ==

+Looks like 46a704f8409f79fd66567ad3f8a7304830a84293 was backported on 88 but e47057151422a67ce08747176fa21cb3b526a2c9 was not:

+

+[gromero@localhost ubuntu-xenial]$ git remote -vv

+origin	git://kernel.ubuntu.com/ubuntu/ubuntu-xenial.git (fetch)

+origin	git://kernel.ubuntu.com/ubuntu/ubuntu-xenial.git (push)

+

+[gromero@localhost ubuntu-xenial]$ git log Ubuntu-4.4.0-83.106..Ubuntu-4.4.0-89.112 --oneline | fgrep "Preserve userspace HTM state properly"

+a97e978 KVM: PPC: Book3S HV: Preserve userspace HTM state properly

+[gromero@localhost ubuntu-xenial]$ git log Ubuntu-4.4.0-83.106..Ubuntu-4.4.0-89.112 --oneline | fgrep "Enable TM before accessing TM registers"

+[gromero@localhost ubuntu-xenial]$ git tag --contains a97e978574f41ffcf1813c180aba2772d46fbb5b

+Ubuntu-4.4.0-88.111

+Ubuntu-4.4.0-89.112

+Ubuntu-raspi2-4.4.0-1066.74

+Ubuntu-raspi2-4.4.0-1067.75

+Ubuntu-snapdragon-4.4.0-1068.73

+Ubuntu-snapdragon-4.4.0-1069.74

+

+So 

+https://github.com/torvalds/linux/commit/46a704f8409f79fd66567ad3f8a7304830a84293 is present in ISO but https://github.com/torvalds/linux/commit/e47057151422a67ce08747176fa21cb3b526a2c9 is not.
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