| commit | 582f286d9b439958aa7c4f1df9cd14b05ec24e50 | |
| author | Matthew Dillon <dillon@apollo.backplane.com> | |
| Sat, 7 Jan 2017 00:04:32 +0000 (6 16:04 -0800) | ||
| committer | Matthew Dillon <dillon@apollo.backplane.com> | |
| Sat, 7 Jan 2017 00:04:32 +0000 (6 16:04 -0800) | ||
| tree | e7f04ea3605aaf31b6379a9374e75265308a830a | treesnapshot (tar.gz zip) |
| parent | 8e9ad8f9412332fda2046c831c9ffcdf20f39544 | commitdiff |
kernel - Fix swap issue, implement dynamic pmap PT/PD/PDP deletion (3)
* More pmap fixes. Fix a bug introduced by the original commit that
could still create managed PT/PD/PDP page tables in kernel_pmap when
doing a wiring change.
* Assert that we never create managed PT/PD/PDP page tables in kernel_pmap.
Managed PTEs can still be created (e.g. for pageable kernel memory).
* Add sysctl pmap_dynamic_delete, which defaults to enabled. This sysctl
can be set to 0 to disable dynamic deletion of PT/PD/PDP pages in user
pmaps.
* More pmap fixes. Fix a bug introduced by the original commit that
could still create managed PT/PD/PDP page tables in kernel_pmap when
doing a wiring change.
* Assert that we never create managed PT/PD/PDP page tables in kernel_pmap.
Managed PTEs can still be created (e.g. for pageable kernel memory).
* Add sysctl pmap_dynamic_delete, which defaults to enabled. This sysctl
can be set to 0 to disable dynamic deletion of PT/PD/PDP pages in user
pmaps.
| sys/platform/pc64/x86_64/pmap.c | diffblobblamehistory |