Intel seems to change its mind, the latest Microcode Revision Guidance for April 2018 removed 9 architectures from the support list. In Intel’s announcement, the company mentions some security enhancements.
Asus and ASRock releasing new BIOS updates (including Spectre fix) which including a new U0-stepping for Coffee Lake CPU’s. Until now Kaby Lake and Coffee Lake CPU’s were identical, they both had the B0 stepping – this is going to change now. In fact until the stepping change the Coffee Lake CPU’s are only re-labeled Kaby Lake CPU’s because everything else is identical.
Intel is currently looking into reports that some of its customers are experiencing reboots in systems that update to the latest firmware for Meltdown & Spectre mitigation. The systems affected are running Broadwell and Haswell processors. However, Intel still recommends end-users should apply the updates for both OS and hardware. Intel needs to straighten this up and the sooner the better.
Canonical has pulled their latest Ubuntu 17.10 release because there are many reports of Lenovo and other brand laptops experiencing corrupted BIOS when the OS is installed. At this time it looks like the Intel SPI driver is the culprit. Once a new kernel is compiled without these drivers the OS will be made available for download once again. If you downloaded this before this morning then you shouldn’t install on your laptop. In some cases only a motherboard replacement will fix the bad BIOS.
Well, we had recently the Inel IME disaster, but how about AMD? AMD has a similar technique and chip which acts like a seperate OS with special permissions and options. It’s called Platform Security Processor (PSP). But before someone is gonna say ‘they spy too!’ no there not! You can disable it and it’s in general better documented.