Intel Releases Skylake Patch for Spectre, Still Testing Other CPUs
Intel Releases Skylake Patch for Spectre, Still Testing Other CPUs
Ever since bugs like Spectre and Meltdown became public knowledge, Intel has been working to craft updated microcode that would close the loopholes and secure its processors. Progress on this front has been relatively deadening and, in some cases, downright confusing. Several updates accept been yanked as a outcome of reboot problems and information technology hasn't always been clear how effectively Microsoft and Intel were at coordinating their work. Now, Intel is telling the press that Skylake patches are now bachelor, with other fixes however in beta.
To briefly recap: Meltdown and Spectre are the terms used to refer to 3 dissever bugs and flaws. Meltdown (aka Variant three) is a flaw unique to Intel in the desktop x86 globe. ARM has some very express exposure to Meltdown, and Apple tree'south custom cores that employ the ARM architecture are also affected.
Spectre (Variants 1 & ii) are common beyond a wider range of microprocessors. Variant 1 also impacts AMD CPUs, but doesn't seem to be implicated in operation concerns. AMD doesn't believe Variant 2 poses a threats to its CPUs, simply continues to piece of work on deploying solutions anyway. Intel is susceptible to Variant 1 and Variant ii, and it'southward V2 that's caused the company bug. The microcode patches released today for Skylake are Variant 2 patches, every bit shown below:
Information technology's non entirely articulate why we're seeing fixes rolling out for Skylake solitary, when Kaby Lake is such a small-scale update to Skylake equally far every bit cadre (or Core) architecture is concerned. This is also truthful for Java Lake, but Java Lake also adds additional CPU cores, whereas Skylake and Kaby Lake are identical on those features likewise. Withal, Intel is making progress towards fielding solutions. The company writes:
Earlier this week, we released production microcode updates for several Skylake-based platforms to our OEM customers and industry partners, and nosotros look to practise the same for more plat forms in the coming days. Nosotros also continue to release beta microcode updates and so that customers and partners have the opportunity to conduct all-encompassing testing before nosotros movement them into production.
Intel has previously stated that its upcoming 10nm processors will accept mitigation fixes baked in-silicon. It is not articulate if Intel will be providing a bug fix for Variant 2 for Ivy Bridge and Sandy Bridge systems. We've heard rumors that the performance touch on for these fixes on older systems tin can exist significant, merely no solution has been formally provided (fifty-fifty briefly). As always, we'll keep you update as solutions roll out.
Source: https://www.extremetech.com/computing/263512-intel-releases-new-skylake-microcode-update-spectre-still-testing-cpus
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