From: Sheng Yang <sheng@linux.intel.com>
To: Avi Kivity <avi@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
kvm@vger.kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Ingo Molnar <mingo@elte.hu>
Subject: Re: [PATCH 3/3] KVM: x86: Use FPU API
Date: Mon, 17 May 2010 16:22:13 +0800 [thread overview]
Message-ID: <201005171622.14483.sheng@linux.intel.com> (raw)
In-Reply-To: <4BF0FBCE.5010002@redhat.com>
On Monday 17 May 2010 16:18:22 Avi Kivity wrote:
> On 05/17/2010 11:09 AM, Sheng Yang wrote:
> > Convert KVM to use generic FPU API.
> >
> > Signed-off-by: Sheng Yang<sheng@linux.intel.com>
> > ---
> > Like this? (Drop patch 1)
>
> Will be more readable with a patch that converts host_fx_image to
> unlazy_fpu(), and a second patch that converts guest_fx_image to the fpu
> API.
OK.
> I think unlazy_fpu() is even a performance win in case userspace doesn't
> do a lot of floating point (which is the case with qemu). I wonder why
> we didn't think of it before.
...
--
regards
Yang, Sheng
prev parent reply other threads:[~2010-05-17 8:24 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-14 3:16 [PATCH 0/3] Convert KVM to use FPU API Sheng Yang
2010-05-14 3:16 ` [PATCH 1/3] x86: Split fpu_save_init() to fpu_save() and fpu_clear() Sheng Yang
2010-05-14 3:16 ` [PATCH 2/3] x86: Export FPU API for KVM use Sheng Yang
2010-05-14 3:16 ` [PATCH 3/3] KVM: x86: Use FPU API Sheng Yang
2010-05-15 8:06 ` Avi Kivity
2010-05-17 8:09 ` Sheng Yang
2010-05-17 8:18 ` Avi Kivity
2010-05-17 8:22 ` Sheng Yang [this message]
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