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Intel promised microcode updates to resolve the vulnerability. [1] The microcode patches have been shown to significantly reduce the performance of some heavily-vectorized loads. [7] Patches to mitigate the effects of the vulnerability have also been created as part of the forthcoming version 6.5 release of the Linux kernel. [8]
Intel distributes microcode updates as a 2,048 (2 kilobyte) binary blob. [1] The update contains information about which processors it is designed for, so that this can be checked against the result of the CPUID instruction. [1] The structure is a 48-byte header, followed by 2,000 bytes intended to be read directly by the processor to be ...
Intel processor microcode security update (fixes the issues when running 32-bit virtual machines in PAE mode) Notes on Intel Microcode Updates, March 2013, by Ben Hawkes, archived from the original on September 7, 2015; Hole seen in Intel's bug-busting feature, EE Times, 2002, by Alexander Wolfe, archived from the original on March 9, 2003
Intel postponed their release of microcode updates to 10 July 2018. [ 33 ] [ 32 ] On 21 May 2018, Intel published information on the first two Spectre-NG class side-channel vulnerabilities CVE- 2018-3640 (Rogue System Register Read, Variant 3a) and CVE- 2018-3639 ( Speculative Store Bypass , Variant 4), [ 34 ] [ 35 ] also referred to as Intel ...
Meltdown exploits a race condition, inherent in the design of many modern CPUs.This occurs between memory access and privilege checking during instruction processing. . Additionally, combined with a cache side-channel attack, this vulnerability allows a process to bypass the normal privilege checks that isolate the exploit process from accessing data belonging to the operating system and other ...
The Super FX chip is a 16-bit supplemental RISC CPU developed by Argonaut Software. [2] It is typically programmed to act as a graphics accelerator chip that draws polygons and advanced 2D effects to a frame buffer in the RAM sitting adjacent to it. Super Mario World 2: Yoshi's Island uses the Super FX 2 for sprite scaling, rotation, and ...
Intel Software Guard Extensions (SGX) is a set of instruction codes implementing trusted execution environment that are built into some Intel central processing units (CPUs). ). They allow user-level and operating system code to define protected private regions of memory, called encla
Transactional Synchronization Extensions (TSX), also called Transactional Synchronization Extensions New Instructions (TSX-NI), is an extension to the x86 instruction set architecture (ISA) that adds hardware transactional memory support, speeding up execution of multi-threaded software through lock elision.
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