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Hi there, I have a question regarding the functionality of x86_emulate_memop (Xen 3.1) or x86_emulate (Xen 3.2) function. This function gets called from sh_page_fault() function which is invoked when Xen receives a page fault. Since I am not clear completely about the emulation operation performed by Xen, I have following questions with a below mentioned scenario? 1) Suppose I have a memory

Hi all, I am trying to perform single-stepping and instruction emulation both in Xen-3.2.1. I am using the following approach: First, I mark a guest page "not present" inside the shadow page table so that I could intercept any operation that involves this page. When the guest tries to access that page, it faults and control goes to Xen (sh_page_fault function). There, I emulate that

Hi there, I am new to ebtables code and looking for some help related to locking and atomicity. I am using Xen 3.0.4 in bridge mode and interested in looking into the packets intercepted by dom0 ebtables code, extract some information, pass this information to userspace, wait for userspace response and then pass the result back to ebtable code. Everything seemed to be working fine until i