Adhemerval Zanella e3e3eb0a2e x86: Fix tst-cpu-features-cpuinfo on Ryzen 9 (BZ #27873) ... AMD define different flags for IRPB, IBRS, and STIPBP [1], so new x86_64_cpu are added and IBRS_IBPB is only tested for Intel. The SSDB is also defined and implemented different on AMD [2], and also a new AMD_SSDB flag is added. It should map to the cpuinfo 'ssdb' on recent AMD cpus. It fixes tst-cpu-features-cpuinfo and tst-cpu-features-cpuinfo-static on recent AMD cpus. Checked on x86_64-linux-gnu on AMD Ryzen 9 5900X. [1] https://developer.amd.com/wp-content/resources/Architecture_Guidelines_Update_Indirect_Branch_Control.pdf [2] https://bugzilla.kernel.org/show_bug.cgi?id=199889 Reviewed-by: H.J. Lu <hjl.tools@gmail.com>		2021-06-24 09:57:46 -03:00
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cpu-features-preferred_feature_index_1.def	x86: Set Prefer_No_VZEROUPPER and add Prefer_AVX2_STRCMP	2021-03-29 07:40:17 -07:00
cpu-features.h	x86: Fix tst-cpu-features-cpuinfo on Ryzen 9 (BZ #27873)	2021-06-24 09:57:46 -03:00