Intel has announced that it has completed the spectre of all CPU processors released in the past five years, the repair of the Meltdown loopholes, future products will be immune from the bottom of the hardware.
On April 2, Intel quietly updated the CPU microcode update instructions, clearly gave up the development of bug fixes for a series of old processors, because they are too old.
These abandoned processors include: Bloomfield, Clarksfiled, Harpertown, Jasper Forest, Penryn, SoFIA 3GR, Wolfdale, Yorkfield.
If you are not familiar with these codes, it does not matter, Most of them are 45nm process products from 2007 to 2009, including the Core Duo, Core 2 and Xeon at the same time, Pentium, Celeron.
SoFIA 3GR is rather special. It is a mobile processor developed by Intel for 3G smart phones, that is, Atom x3-C3000 series, but there is almost no product adoption.
Prior to this, the microcode update status of these products was planned or pre-beta, and now they all become stopped.
According to Intel, after in-depth research on the microarchitecture of these product microarchitectures, it was decided not to update the microcode for them. The reasons include:
- Micro-architect attribute makes it unable to fully integrate some features of Ghost Vulgate variant 2 patch
- Extremely limited system software support
- Most of these products have been abandoned, and there is basically no possibility of being attacked
