Intel gives Broadwells and Haswells their Meltdown medicine

Chipzilla and Oracle are working their way back through time to deliver fixes

By Simon Sharwood, APAC Editor

Posted in Security, 28th February 2018 01:58 GMT

Intel slipped out a new Microcode Update Guidance on Monday, revealing that lots of Haswell and Broadwell Xeons can now receive inoculations against the Meltdown and Spectre CPU design flaws.

The new document (PDF) says Broadwell processors with CPUIDs 50662, 50663, 50664, 40671, 406F1, 306D4 and 40671 are ready for their reaming.

Updates for Haswells numbered 306C3, 4066, 306F2, 40651 and 306C3 have also hit production.

The CPUs mentioned above include Xeon and Core silicon.

Broadwell debuted in 2014 and Haswell the year before, so these updates show Intel is working backwards through its catalog. The Update Guidance also lists 16 processor types for which Intel is still in the planning stage, meaning Intel has no schedule for delivering a fix. The affected CPUs are mostly oldies. A further 9 CPU types are listed as "Pre-beta", meaning microcode is being tested by partners under non-disclosure agreements.

Oracle's also visited its past in the pursuit of Meltown/Spectre patches: late last week it offered patches for version 5.x of its Linux. ®

Sign up to our NewsletterGet IT in your inbox daily

18 Comments

More from The Register

Monday: Intel touts 28-core desktop CPU. Tuesday: AMD turns Threadripper up to 32

It's crazy how a little competition can cause that

Cheap-ish. Not Intel. Nice graphics. Pick, er, 3: AMD touts Ryzen Pro processors for business

Quickly follows 2018's Pro Mobile parts

A bit of intel on AMD's embedded Epyc and Ryzen processors

Dips Zen toes into embedded world with hot new SoCs

FYI: Processor bugs are everywhere – just ask Intel and AMD

More chip flaws await

Cray snuggles up with AMD: Clustered super CS500 lets in Epyc chip

Oh dear, Intel... look who's getting cosy with Cray

SHL just got real-mode: US lawmakers demand answers on Meltdown, Spectre handling from Intel, Microsoft and pals

Pact of silence questioned

AMD Ryzen beats Intel Core i7 as a heater (that's also a server)

Distributed cloud company now working on Ryzens that warm your shower

Microsoft raises pistol, pulls the trigger on Windows 7, 8 updates for new Intel, AMD chips

Don't want to use Windows 10? Then you don't want any fixes

Card shark Intel bets with discrete graphics chips, shuffles AMD's GPU boss into the deck

That's a busted flush of a headline

AMD scores EPYC gig powering new Azure instances

Don't pop the champagne yet: Microsoft's still using Intel in same series