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2 Commits

Author SHA1 Message Date
Justin C. Miller
a5f72edf82 [kernel] Add in_hv cpu "feature" flag 
Reformat the cpu_features.inc file and add the `in_hv` feature that is
supposedly set by hypervisors when running in emulation. QEMU does not
set it.

Tags: cpuid
 2020-06-01 23:33:30 -07:00
Justin C. Miller
3a68ec439d Add CPU feature checking. 
Introduces the cpu_features.inc table to enumerate the CPU features that
j6 cares about. Features in this table marked CPU_FEATURE_REQ are
considered required, and the boot process will log an error and halt
when any of these features are not supported. This should save me from
banging my head against the wall like I did last night with the missing
pdpe1gb feature.
 2019-07-04 16:41:25 -07:00