OK, I'll try with your design
El 16/10/21 a les 18:06, Sergey Bugaev ha escrit:
On Sat, Oct 16, 2021 at 6:54 PM Samuel Thibault <samuel.thiba...@gnu.org> wrote:
Indeed, since it's the region that remembers which protection was
allowed, we need a proxy there to enforce them.
Right, that's also a good point. max_proection can be less than 7 even
if there never was a proxy. That is, one can do
vm_map (some_other_task, memobj, VM_PROT_READ, VM_PROT_READ);
and expect some_other_task to never get write access to the object.
Sergey
