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
