[DragonFlyBSD - Submit #3264] (Resolved) [PATCH] Clarify XSAVE features, and always use XSAVE

[bugtracker-admin at leaf.dragonflybsd.org]

Issue #3264 has been updated by dillon.

Status changed from New to Resolved
Assignee set to dillon

Committed with minor formatting adjustments, nice!

-Matt

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Submit #3264: [PATCH] Clarify XSAVE features, and always use XSAVE
http://bugs.dragonflybsd.org/issues/3264#change-13957

* Author: chicken
* Status: Resolved
* Priority: Normal
* Assignee: dillon
* Category: Kernel
* Target version: master
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1) Introduce npx_xcr0_mask, to keep track of which XCR0 features are enabled
   system-wide.

2) Always use XSAVE regardless of whether AVX is supported or not. XSAVE may be
   supported without AVX, on certain CPUs and also under hypervisors that expose
   XSAVEOPT without AVX.


---Files--------------------------------
1-introduce-npx_xcr0_mask.diff (3.45 KB)
2-always-use-XSAVE.diff (1.96 KB)


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