KVM Memory Management Question

Hi

I am working on a research project for which I want to intercept sysenter calls. My plan is currently to change the sysenter eip msr to jump into code that I inject into the guest kernel's memory space. I have been having difficulties determining what the different functions available in kernel/mmu.c do, so that I can take advantage of them.

Could someone give me a rough overview of kvm's memory management functions, or any tips that will point me in the right direction?

Any help at all would be very much appreciated,
Benjamin Prosnitz

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