Has Hardware Lock Elision gone forever due to Spectre Mitigation?
So, TSX may be disabled not to mitigate Spectre, but as a part of another vulnerability mitigation, TSX Asynchronous Abort (TAA). Here’s relevant article on Intel website: Intel® Transactional Synchronization Extensions (Intel® TSX) Asynchronous Abort / CVE-2019-11135 / INTEL-SA-00270 Which links to two more detailed articles: TSX Asynchronous Abort (TAA) CVE-2019-11135 Microarchitectural Store Buffer Data … Read more