Date: Fri, 20 Apr 2018 15:05:48 +0000 (UTC) From: "Jonathan T. Looney" <jtl@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r332823 - stable/11/sys/amd64/amd64 Message-ID: <201804201505.w3KF5mNM076608@repo.freebsd.org>
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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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