Tested http://launchpadlibrarian.net/325879940/intel-microcode_3.20170511.1~ubuntu17.04.0_amd64.deb into Xenial+rolling-hwe. So far seems ok.
[ 0.000000] microcode: microcode updated early to revision 0xba, date = 2017-04-09 [ 0.000000] Linux version 4.8.0-56-generic (buildd@lcy01-33) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4) ) #61~16.04.1 -Ubuntu SMP Wed Jun 14 11:58:22 UTC 2017 (Ubuntu 4.8.0-56.61~16.04.1-generic 4.8.17) [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.8.0-56-generic.efi.signed root=UUID=5c51331a-6c14-4bd6-86b6-00d4b00f4da6 ro quiet splash vt.handoff=7 ... [ 0.876613] microcode: sig=0x506e3, pf=0x2, revision=0xba [ 0.876934] microcode: Microcode Update Driver: v2.01 <email address hidden>, Peter Oruba
Tested http:// launchpadlibrar ian.net/ 325879940/ intel-microcode _3.20170511. 1~ubuntu17. 04.0_amd64. deb
into Xenial+rolling-hwe. So far seems ok.
[ 0.000000] microcode: microcode updated early to revision 0xba, date = 2017-04-09 16.04.4) ) #61~16.04.1 61~16.04. 1-generic 4.8.17) /boot/vmlinuz- 4.8.0-56- generic. efi.signed root=UUID= 5c51331a- 6c14-4bd6- 86b6-00d4b00f4d a6 ro quiet
[ 0.000000] Linux version 4.8.0-56-generic (buildd@lcy01-33) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~
-Ubuntu SMP Wed Jun 14 11:58:22 UTC 2017 (Ubuntu 4.8.0-56.
[ 0.000000] Command line: BOOT_IMAGE=
splash vt.handoff=7
...
[ 0.876613] microcode: sig=0x506e3, pf=0x2, revision=0xba
[ 0.876934] microcode: Microcode Update Driver: v2.01 <email address hidden>, Peter Oruba