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[Xen-devel] [PATCH][RFC] FPU LWP 1/5: clean up the FPU code

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Subject: [Xen-devel] [PATCH][RFC] FPU LWP 1/5: clean up the FPU code
From: Wei Huang <wei.huang2@xxxxxxx>
Date: Thu, 14 Apr 2011 15:37:54 -0500
Delivery-date: Thu, 14 Apr 2011 13:44:20 -0700
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This patch reorganizes and cleans up the FPU code. Main changes include:

1. Related functions are re-arranged together.
2. FPU save/restore code are extracted out as independent functions (fsave/frstor, fxsave/fxrstor, xsave/xrstor). 3. Two FPU entry functions, fpu_save() and fpu_restore(), are defined. They utilize xsave/xrstor to save/restore FPU state if CPU supports extended state. Otherwise they fall back to fxsave/fxrstor or fsave/frstor.

Signed-off-by: Wei Huang <wei.huang2@xxxxxxx>

Attachment: lwp1.txt
Description: lwp1.txt

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