Hi, I am trying to figure out if a particular disk operation is reading from the same location in an image file. I am simulating a USB disk, and during an operation the guest OS performs, I would like to know how many times the backing image file is read. I have identified the function address_space_write as the function that writes the data to the guest OS from the image, but I am not sure what to compare with past writes. There are AddressSpace*, MemoryRegion*, and hwaddr types in that function. Can any of those be used to compare image read locations? I am hoping that if, for example, the AddressSpace* passed into address_space_write during one invocation equals the AddressSpace* of another invocation means that the same location within the image file was read twice. Any help would be appreciated.
- Derrick McKee -- Derrick McKee Ph.D. Student at Purdue University
