[Rejected] Re: [Maverick] [PATCH 0/6] xsaveopt instruction support

Leann Ogasawara leann.ogasawara at canonical.com
Tue Sep 14 20:01:18 UTC 2010


Rejecting for Maverick.  We'll get this automatically in Natty.

Thanks,
Leann

On Mon, 2010-08-23 at 18:58 -0700, leann.ogasawara at canonical.com wrote:
> It's been requested that we provide xsaveopt instruction support in
> Maverick which can be leveraged by Intel Sandy Bridge.  This is a new
> feature to improve performance of the XSAVE operation by reducing the
> amount of data written during an XSAVE operation.  All patches are
> currently upstream in 2.6.35-rc1.  Proposing these for Maverick.
> 
> Thanks,
> Leann
> 
> Suresh Siddha (6):
>   x86, cpu: Make init_scattered_cpuid_features() consider cpuid
>     subleaves
>   x86, cpu: Add xsaveopt cpufeature
>   x86, cpu: Enumerate xsaveopt
>   x86, xsave: Track the offset, size of state in the xsave layout
>   x86, xsave: Sync xsave memory layout with its header for user
>     handling
>   x86, xsave: Use xsaveopt in context-switch path when supported
> 
>  arch/x86/include/asm/cpufeature.h          |    1 +
>  arch/x86/include/asm/i387.h                |   14 ++++
>  arch/x86/include/asm/xsave.h               |   19 ++++-
>  arch/x86/kernel/cpu/addon_cpuid_features.c |   24 +++---
>  arch/x86/kernel/cpu/common.c               |    8 ++
>  arch/x86/kernel/i387.c                     |   11 +++
>  arch/x86/kernel/xsave.c                    |  116 ++++++++++++++++++++++++++++
>  7 files changed, 179 insertions(+), 14 deletions(-)
> 
> 






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