Adhemerval Zanella 469761eac8 elf: Fix tst-cpu-features-cpuinfo on some AMD systems (BZ #28090) ... The SSBD feature is implemented in 2 different ways on AMD processors: newer systems (Zen3) provides AMD_SSBD (function 8000_0008, EBX[24]), while older system provides AMD_VIRT_SSBD (function 8000_0008, EBX[25]). However for AMD_VIRT_SSBD, kernel shows both 'ssdb' and 'virt_ssdb' on /proc/cpuinfo; while for AMD_SSBD only 'ssdb' is provided. This now check is AMD_SSBD is set to check for 'ssbd', otherwise check if AMD_VIRT_SSDB is set to check for 'virt_ssbd'. Checked on x86_64-linux-gnu on a Ryzen 9 5900x. Reviewed-by: H.J. Lu <hjl.tools@gmail.com>		2021-07-19 14:12:29 -03:00
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x86.h	elf: Fix tst-cpu-features-cpuinfo on some AMD systems (BZ #28090)	2021-07-19 14:12:29 -03:00