target-i386/cpu.c:ext_save_area uses magic numbers for the xsave
area offets and sizes, and target-i386/kvm.c:kvm_{put,get}_xsave()
uses offset macros and bit manipulation to access the xsave area.
This series changes both to use C structs for the same

I still need to figure out a way to write unit tests for the new
code. Maybe I will just copy and paste the new and old functions,
and test them locally (checking if they give the same results
when translating blobs of random bytes).

Eduardo Habkost (3):
  target-i386: Define structs for layout of xsave area
  target-i386: Use xsave structs for ext_save_area
  target-i386: kvm: Use X86XSaveArea struct for xsave save/load

 target-i386/cpu.c |  18 +++++---
 target-i386/cpu.h |  85 ++++++++++++++++++++++++++++++++++++++
 target-i386/kvm.c | 121 +++++++++++++++++++++++-------------------------------
 3 files changed, 149 insertions(+), 75 deletions(-)


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