On Fri, Jan 12, 2018 at 11:23 AM, Corbin Bird <corbinb...@charter.net> wrote: > > On 01/11/2018 05:02 PM, Rich Freeman wrote: >> >> IMO Spectre is going to drive some microcode updates for relatively >> recent CPUs, compiler improvements, and some hand-tuning of >> particularly critical code. >> > > The microcode updates pushed out for AMD by Gentoo seem to be only for : > Fam16h, Fam17h CPUs. >
FWIW even the 17h microcode doesn't seem to be updating on my Ryzen: dmesg | grep microco [ 0.989279] microcode: CPU0: patch_level=0x08001129 [ 0.989421] microcode: CPU1: patch_level=0x08001129 [ 0.989565] microcode: CPU2: patch_level=0x08001129 [ 0.989708] microcode: CPU3: patch_level=0x08001129 [ 0.989857] microcode: CPU4: patch_level=0x08001129 [ 0.990001] microcode: CPU5: patch_level=0x08001129 [ 0.990183] microcode: CPU6: patch_level=0x08001129 [ 0.990332] microcode: CPU7: patch_level=0x08001129 [ 0.990475] microcode: CPU8: patch_level=0x08001129 [ 0.990619] microcode: CPU9: patch_level=0x08001129 [ 0.990764] microcode: CPU10: patch_level=0x08001129 [ 0.990905] microcode: CPU11: patch_level=0x08001129 [ 0.991095] microcode: Microcode Update Driver: v2.2. That said, there still isn't any AMD documentation around the microcode updates that I've been able to find, so I have no idea what the correct patch level is even supposed to be. I just know that I'm not getting a message about early updates. I do have linux 4.4.13 which includes the family 17h patch. The other odd thing is that a firmware update was released for my motherboard (ASRock AB350 Pro4) on the 10th, and if I flash it grub will no longer boot the linux kernel, and it is pretty slow overall, but it will still boot memtestx86 just fine. I figured I'd wait a few days and see if there is any further info on it. -- Rich
