From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Yang, Sheng" <sheng.yang@intel.com>
Subject: Re: KVM: VMX: cache exit_intr_info
Date: Sat, 28 Jun 2008 11:20:47 +0800
Message-ID: <200806281120.47995.sheng.yang@intel.com>
References: <20080627180519.GB18541@dmt.cnet>
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Cc: Avi Kivity <avi@qumranet.com>, kvm-devel <kvm@vger.kernel.org>
To: Marcelo Tosatti <mtosatti@redhat.com>
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On Saturday 28 June 2008 02:05:19 Marcelo Tosatti wrote:
> exit_intr_info is read-only in nature, so once read it can be
> cached similarly to idtv_vectoring_inf.
>
> Reduces guest re-entry in about 50 cycles on my machine (the
> exception path should be similar, but haven't measured).
>
> Applies on top of register accessor patch.
>
> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
>
Thanks for the patches! :)

And I realized there are also too much vmcs_read32
(CPU_BASED_VM_EXEC_CONTROL)(though not read only). I'd like to post 
another patch to optimize it later.

--
Thanks
Yang, Sheng