mirror of
https://github.com/ApfelTeeSaft/reactos.git
synced 2026-08-29 12:23:30 +00:00
ReactOS Portable Systems Group
c0bb477b78
- Paged pool PTEs are demand zero PTEs while the memory hasn't been accessed -- this is the only type of fault supported. - Because paged pool PDEs are also demand-paged, added code to handle demand paging of PDEs as well. - Also, because paged pool is non-resident, but can be accessed from any process, we need a mechanism to sync up the kernel's page directory with the per-process one, on demand. This is done at startup, but other processes may have paged in paged pool that another process knows nothing about when he faults. - Similar to the hack ReactOS Mm uses, but done properly. - This is what that shadow system page directory is finally being used for. - Assert if we get a user-mode fault, a transition fault, or a soft fault, since these shouldn't happen. - Disable APCs while dispatching faults, and pseudo-use the working set lock. - Assert if we get write errors on read-only pages, since we don't use those in ARM3 yet. - Assert if we have a paged out PTE, this shouldn't happen yet. - Enable test to see if we can touch a paged pool allocation. svn path=/trunk/; revision=43507