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2010 Mar 05
3
[PATCH] x86/hvm: accelerate IO intercept handling
Hi, currently we go through the emulator every time a HVM guest does an I/O port access (in/out). This is unnecessary most of the times, as both VMX and SVM provide all the necessary information already in the VMCS/VMCB. String instructions are not covered by this shortcut, but they are quite rare and we would need to access the guest memory anyway. This patch decodes the information from