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[Xen-devel] [Patch] Make use of VMX_INSTRUCTION_INFO field to obtain the segment register of OUTS


  • To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Han, Weidong" <weidong.han@xxxxxxxxx>
  • Date: Tue, 26 Jun 2007 15:30:56 +0800
  • Delivery-date: Tue, 26 Jun 2007 00:29:04 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Ace3w+1k5uyG3JLLRnebaUpU418qhA==
  • Thread-topic: [Xen-devel] [Patch] Make use of VMX_INSTRUCTION_INFO field to obtain the segment register of OUTS

For VM exits due to INS or OUTS, VMX_INSTRUCTION_INFO field will receive
information about the instruction that caused the VM exit in new VMX
CPUs. The attached patch makes use of VMX_INSTRUCTION_INFO field to
obtain the segment register of OUTS. This is faster than decoding
guest's instructions.

Signed-off-by: Weidong Han <weidong.han@xxxxxxxxx>

Attachment: vmx_string_pio.patch
Description: vmx_string_pio.patch

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