[Xen-devel] [PATCH v2 0/5] x86: Lift create_exception_frame() up out of C

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

This has finally undergone performance testing.  No measureable difference in
any lmbench test on either 32 or 64bit PV guests.

Andrew Cooper (5):
  x86/entry: Correct comparisons against boolean variables
  x86/pv: Drop int80_bounce from struct pv_vcpu
  x86/pv: Introduce pv_create_exception_frame()
  x86/pv: Drop {compat_,}create_bounce_frame() and use the C version instead
  x86/pv: Implement the failsafe callback using the general path

 xen/arch/x86/domain.c              | 102 ++-----------------
 xen/arch/x86/pv/callback.c         |   8 --
 xen/arch/x86/pv/traps.c            | 176 +++++++++++++++++++++++++++++---
 xen/arch/x86/traps.c               |  23 -----
 xen/arch/x86/x86_64/asm-offsets.c  |   1 -
 xen/arch/x86/x86_64/compat/entry.S | 128 ++---------------------
 xen/arch/x86/x86_64/entry.S        | 203 ++++++++-----------------------------
 xen/include/asm-x86/domain.h       |   1 -
 xen/include/asm-x86/processor.h    |   3 +-
 xen/include/xen/sched.h            |   7 --
 10 files changed, 224 insertions(+), 428 deletions(-)

-- 
2.1.4


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