Author: jtl
Date: Fri Apr 20 15:05:48 2018
New Revision: 332823
URL: https://svnweb.freebsd.org/changeset/base/332823
Log:
MFC r329171:
Mark the pages used for the initial page-table entries as wired. This
makes them consistent with the way other page-table pages are allocated.
It also provides the rest of the VM system a good clue that these pages
are used.
Sponsored by: Netflix, Inc.
Modified:
stable/11/sys/amd64/amd64/pmap.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sys/amd64/amd64/pmap.c
==============================================================================
--- stable/11/sys/amd64/amd64/pmap.c Fri Apr 20 14:55:13 2018
(r332822)
+++ stable/11/sys/amd64/amd64/pmap.c Fri Apr 20 15:05:48 2018
(r332823)
@@ -1272,7 +1272,9 @@ pmap_init(void)
("pmap_init: page table page is out of range"));
mpte->pindex = pmap_pde_pindex(KERNBASE) + i;
mpte->phys_addr = KPTphys + (i << PAGE_SHIFT);
+ mpte->wire_count = 1;
}
+ atomic_add_int(&vm_cnt.v_wire_count, nkpt);
/*
* If the kernel is running on a virtual machine, then it must assume
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