Hi all, I would like to know if there is a function in QEMU which converts a guest physical address into corresponding host virtual address. I guess cpu_physical_memory_map (exec.c) can do the job, but I have a few questions.
1. I am running x86 guest on a x86_64 host and using the cod below to get the host virtual address, I am not sure what value of len should be. static inline void *gpa2hva(target_phys_addr_t addr) { target_phys_addr_t len = 4; return cpu_physical_memory_map(addr, &len, 0); } 2. There is a function "cpu_physical_memory_unmap", the comment of it says, Unmaps a memory region previously mapped by cpu_physical_memory_map(). That makes me not sure if I use cpu_physical_memory_map correctly, does it do what I want to do? Regards, chenwj -- Wei-Ren Chen (陳韋任) Computer Systems Lab, Institute of Information Science, Academia Sinica, Taiwan (R.O.C.) Tel:886-2-2788-3799 #1667 Homepage: http://people.cs.nctu.edu.tw/~chenwj