current v2p implementation expects to have an access to physical addresses. It works in the kernel processes but it causes page fault in user process. v2p can be implemented with kernel direct map which can be accessible from supervisor mode of user process (e.g. syscall) so implement it.
hikalium
commented
3 years ago
current v2p implementation expects to have an access to physical addresses. It works in the kernel processes but it causes page fault in user process. v2p can be implemented with kernel direct map which can be accessible from supervisor mode of user process (e.g. syscall) so implement it.