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

[Wei Huang <wei.huang2@xxxxxxx>]

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

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel