| #
285634 |
|
16-Jul-2015 |
kib |
MFC r276439 (by alc):
Make the creation of the free lists dynamic, i.e., it is based on the
available physical memory at boot time. For amd64 systems with 64 GB
or more of physical memory, create free lists for managing pages with
physical addresses below 4 GB.
PR: 185727
Requested by: alc
Approved by: re (gjb)
|
| #
276546 |
|
02-Jan-2015 |
alc |
MFC r273701, r274556
By the time that pmap_init() runs, vm_phys_segs[] has been initialized.
Obtaining the end of memory address from vm_phys_segs[] is a little
easier than obtaining it from phys_avail[].
Enable the use of VM_PHYSSEG_SPARSE on amd64 and i386, making it the
default on i386 PAE. (The use of VM_PHYSSEG_SPARSE on i386 PAE saves
us some precious kernel virtual address space that would have been
wasted on unused vm_page structures.)
|
| #
285634 |
|
16-Jul-2015 |
kib |
MFC r276439 (by alc):
Make the creation of the free lists dynamic, i.e., it is based on the
available physical memory at boot time. For amd64 systems with 64 GB
or more of physical memory, create free lists for managing pages with
physical addresses below 4 GB.
PR: 185727
Requested by: alc
Approved by: re (gjb)
|
| #
276546 |
|
02-Jan-2015 |
alc |
MFC r273701, r274556
By the time that pmap_init() runs, vm_phys_segs[] has been initialized.
Obtaining the end of memory address from vm_phys_segs[] is a little
easier than obtaining it from phys_avail[].
Enable the use of VM_PHYSSEG_SPARSE on amd64 and i386, making it the
default on i386 PAE. (The use of VM_PHYSSEG_SPARSE on i386 PAE saves
us some precious kernel virtual address space that would have been
wasted on unused vm_page structures.)
|