Re: [PATCH 0/5] x86/paravirt: clean up paravirt.h and optimise FPUcontext switch

[Jeremy Fitzhardinge]

On 06/12/09 05:37, Ingo Molnar wrote:
> * Jeremy Fitzhardinge<jeremy@xxxxxxxx>  wrote:
>
>    
> > Hi Ingo,
> >
> > This series:
> >   - splits asm/paravirt.h into paravirt.h and paravirt_types.h
> >   - splits out the context switch core of math_state_restore into __math_state_restore
> >   - rearranges 32 and 64 bit context switch to be the same and to properly
> >     batch FPU context switches when running paravirtualized
> >
> > There should be no performance side-effects of these changes.  They amount
> > to a small rearrangement of the existing code (and bringing the 64-bit
> > code a bit closer to 32-bit, countering some genetic drift).
> >
> > I think these are probably safe to go into this merge window, but I
> > don't think I've posted these before, so I understand if you're hesitant
> > (I've had them applied locally for some time with no ill-effects).
> > The paravirt cleanup is pure movement between headers, so I don't think
> > there's much risk there at all.
> >
> >   arch/x86/include/asm/i387.h           |    1 +
> >   arch/x86/include/asm/paravirt.h       |  711 +--------------------------------
> >   arch/x86/include/asm/paravirt_types.h |  720 +++++++++++++++++++++++++++++++++
> >   arch/x86/kernel/process_32.c          |   27 +-
> >   arch/x86/kernel/process_64.c          |   33 +-
> >   arch/x86/kernel/traps.c               |   33 +-
> >   6 files changed, 782 insertions(+), 743 deletions(-)
> >      
>
> hm, no Git pull coordinates - but you have this in a Git tree,
> right?
>    

Oh, yep:


The following changes since commit 588aa5f175154e2b15565fda4c21741c1c1d25a8:
  Ingo Molnar (1):
        Merge branch 'kmemcheck'

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git x86/paravirt

Jeremy Fitzhardinge (5):
      x86/paravirt: split paravirt definitions into paravirt_types.h
      x86: split out core __math_state_restore
      x86-32: make sure clts is batched during context switch
      x86-64: move unlazy_fpu() into lazy cpu state part of context switch
      x86-64: move clts into batch cpu state updates when preloading fpu

 arch/x86/include/asm/i387.h           |    1 +
 arch/x86/include/asm/paravirt.h       |  711 +--------------------------------
 arch/x86/include/asm/paravirt_types.h |  720 +++++++++++++++++++++++++++++++++
 arch/x86/kernel/process_32.c          |   27 +-
 arch/x86/kernel/process_64.c          |   33 +-
 arch/x86/kernel/traps.c               |   33 +-
 6 files changed, 782 insertions(+), 743 deletions(-)
 create mode 100644 arch/x86/include/asm/paravirt_types.h

	J

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