Differential D48466

amd64/fpu: Track supervisor state XSAVE components
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Authored by bnovkov on Wed, Jan 15, 5:10 PM.

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	F107551975: D48466.diff
	Wed, Jan 15, 7:24 PM

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Summary

The amd64/fpu.c xsave_* routines track supported XSAVE components and
features. However, they only track supported user state components, and
there is currently no way for a consumer to check whether the CPU
supports a supervisor state component. Fix this by saving the supported
supervisor state components, enumerated by CPUID function 0DH,
sub-function 1, in a separate mask.

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Repository

rG FreeBSD src repository

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Build Status

Buildable 61735
Build 58619: arc lint + arc unit

Event Timeline

bnovkov created this revision.Wed, Jan 15, 5:10 PM

Herald added a subscriber: imp. · View Herald TranscriptWed, Jan 15, 5:10 PM

bnovkov requested review of this revision.Wed, Jan 15, 5:10 PM

Harbormaster completed remote builds in B61735: Diff 149295.Wed, Jan 15, 5:10 PM

Revision Contents
Changeset List

Path

Size

sys/

amd64/

amd64/

39 lines

x86/

include/

5 lines

Diff 149295

sys/amd64/amd64/fpu.c

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sys/x86/include/fpu.h

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