Mark Johnston 8978608832 amd64: Populate the KMSAN shadow maps and integrate with the VM ... - During boot, allocate PDP pages for the shadow maps. The region above KERNBASE is currently not shadowed. - Create a dummy shadow for the vm page array. For now, this array is not protected by the shadow map to help reduce kernel memory usage. - Grow shadows when growing the kernel map. - Increase the default kernel stack size when KMSAN is enabled. As with KASAN, sanitizer instrumentation appears to create stack frames large enough that the default value is not sufficient. - Disable UMA's use of the direct map when KMSAN is configured. KMSAN cannot validate the direct map. - Disable unmapped I/O when KMSAN configured. - Lower the limit on paging buffers when KMSAN is configured. Each buffer has a static MAXPHYS-sized allocation of KVA, which in turn eats 2*MAXPHYS of space in the shadow map. Reviewed by: alc, kib Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D31295		2021-08-10 21:27:53 -04:00
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_vm_phys.h	vm_phys: Try to clean up NUMA KPIs	2020-11-19 03:59:21 +00:00
_vm_radix.h
default_pager.c	vm_object_kvme_type(): reimplement by embedding kvme_type into pagerops	2021-05-13 20:10:35 +03:00
device_pager.c	vm_object_kvme_type(): reimplement by embedding kvme_type into pagerops	2021-05-13 20:10:35 +03:00
memguard.c	vm: clean up empty lines in .c and .h files	2020-09-01 21:20:45 +00:00
memguard.h	LinuxKPI: Implement ksize() function.	2020-08-29 19:26:31 +00:00
phys_pager.c	vm_object_kvme_type(): reimplement by embedding kvme_type into pagerops	2021-05-13 20:10:35 +03:00
pmap.h	Add pmap_enter(9) PMAP_ENTER_LARGEPAGE flag and implement it on amd64.	2020-09-09 21:50:24 +00:00
redzone.c	redzone: Raise a compile error if KASAN is configured	2021-07-23 10:47:13 -04:00
redzone.h
sg_pager.c	vm_object_kvme_type(): reimplement by embedding kvme_type into pagerops	2021-05-13 20:10:35 +03:00
swap_pager.c	tmpfs: dynamically register tmpfs pager	2021-05-13 20:13:34 +03:00
swap_pager.h	tmpfs: dynamically register tmpfs pager	2021-05-13 20:13:34 +03:00
uma.h	uma: Introduce per-domain reclamation functions	2021-04-14 13:03:34 -04:00
uma_core.c	uma: Fix a few problems with KASAN integration	2021-07-09 20:38:50 -04:00
uma_dbg.c	Fix compilation failures on different arches that have vm_machdep.c not	2019-01-15 19:33:47 +00:00
uma_dbg.h
uma_int.h	Improve UMA cache reclamation.	2021-05-02 19:45:23 -04:00
vm.h	tmpfs: dynamically register tmpfs pager	2021-05-13 20:13:34 +03:00
vm_domainset.c	Add interruptible variant of vm_wait(9), vm_wait_intr(9).	2020-09-08 23:28:09 +00:00
vm_domainset.h	Add interruptible variant of vm_wait(9), vm_wait_intr(9).	2020-09-08 23:28:09 +00:00
vm_dumpset.h	Avoid dump_avail[] redefinition.	2020-10-14 22:51:40 +00:00
vm_extern.h	Add vnode_pager_purge_range(9) KPI	2021-08-05 22:52:26 +08:00
vm_fault.c	Add OBJT_SWAP_TMPFS pager	2021-05-07 17:08:03 +03:00
vm_glue.c	fork: Suspend other threads if both RFPROC and RFMEM are not set	2021-05-13 08:33:23 -04:00
vm_init.c	Make MAXPHYS tunable. Bump MAXPHYS to 1M.	2020-11-28 12:12:51 +00:00
vm_kern.c	uma: Introduce per-domain reclamation functions	2021-04-14 13:03:34 -04:00
vm_kern.h	Remove the VM map zone.	2020-08-17 13:02:01 +00:00
vm_map.c	fork: Suspend other threads if both RFPROC and RFMEM are not set	2021-05-13 08:33:23 -04:00
vm_map.h	vm_map_protect: allow to set prot and max_prot in one go.	2021-01-13 01:35:22 +02:00
vm_meter.c	Use atomic loads/stores when updating td->td_state	2021-02-18 14:02:48 +00:00
vm_mmap.c	Add OBJT_SWAP_TMPFS pager	2021-05-07 17:08:03 +03:00
vm_object.c	tmpfs: dynamically register tmpfs pager	2021-05-13 20:13:34 +03:00
vm_object.h	vm: add another pager private flag	2021-05-15 20:47:29 +00:00
vm_page.c	Add pmap_vm_page_alloc_check()	2021-07-31 16:53:42 +03:00
vm_page.h	Un-staticise vm_page_init_page()	2021-06-17 16:58:44 +03:00
vm_pageout.c	Add vn_lktype_write()	2021-08-04 19:40:13 +03:00
vm_pageout.h	Add interruptible variant of vm_wait(9), vm_wait_intr(9).	2020-09-08 23:28:09 +00:00
vm_pagequeue.h	vm_phys: Try to clean up NUMA KPIs	2020-11-19 03:59:21 +00:00
vm_pager.c	amd64: Populate the KMSAN shadow maps and integrate with the VM	2021-08-10 21:27:53 -04:00
vm_pager.h	vm: Add KPI to dynamically register pagers	2021-05-13 20:12:29 +03:00
vm_param.h	(fault 3/9) Move map relookup into a dedicated function.	2020-01-23 05:07:01 +00:00
vm_phys.c	vm_phys: Try to clean up NUMA KPIs	2020-11-19 03:59:21 +00:00
vm_phys.h	vm_phys: Try to clean up NUMA KPIs	2020-11-19 03:59:21 +00:00
vm_radix.c	vm: clean up empty lines in .c and .h files	2020-09-01 21:20:45 +00:00
vm_radix.h	Use SMR to provide a safe unlocked lookup for vm_radix.	2020-02-19 19:58:31 +00:00
vm_reserv.c	vm_reserv: Fix list locking in vm_reserv_reclaim_contig()	2021-03-11 10:35:35 -05:00
vm_reserv.h	Fix locking in vm_reserv_reclaim_contig().	2019-11-22 16:28:52 +00:00
vm_swapout.c	Use a single VM object for kernel stacks.	2020-04-26 20:08:57 +00:00
vm_swapout_dummy.c
vm_unix.c	Prepare to handle non-trivial errors from vm_map_delete().	2020-09-09 21:34:31 +00:00
vnode_pager.c	Add vnode_pager_purge_range(9) KPI	2021-08-05 22:52:26 +08:00
vnode_pager.h	vm pager: writemapping accounting for OBJT_SWAP	2019-09-03 20:31:48 +00:00