Feature #8534: Want AVX-512 Support
xsave area should size dynamically, based on CPU features
AVX512 adds almost 2k to the xsave area in each LWP. Intel clearly intends for the xsave area to be dynamically sized based on the features available in the current CPU. We should do that instead of blindly just increasing the size as we did for AVX.
Updated by Electric Monk almost 3 years ago
- Status changed from New to Closed
commit 088d69f878cf3fb57556357236ef8e1c8f9d893e Author: Jerry Jelinek <firstname.lastname@example.org> Date: 2017-08-16T17:06:52.000Z 8534 Want AVX-512 Support 8535 kernel cpuid support for new processors 8536 xsave area should size dynamically, based on CPU features 8537 rtld needs to learn about AVX512 8538 add support for xsaveopt for improved context switching 8539 better handling for AMD-specifc *save_ctxt FP exceptions Reviewed by: Robert Mustacchi <email@example.com> Reviewed by: Toomas Soome <firstname.lastname@example.org> Approved by: Richard Lowe <email@example.com>