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amd64: report support for 1G superpages in getpagesizes(2).

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Reviewed by:	markj
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D24652
This commit is contained in:
Konstantin Belousov 2020-09-09 21:01:36 +00:00
parent 25f44824ba
commit 6e64bebb6f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=365511
1 changed files with 5 additions and 0 deletions
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5
sys/amd64/amd64/pmap.c
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@ -2382,6 +2382,11 @@ pmap_init(void)
KASSERT(MAXPAGESIZES > 1 && pagesizes[1] == 0,
("pmap_init: can't assign to pagesizes[1]"));
pagesizes[1] = NBPDR;
if ((amd_feature & AMDID_PAGE1GB) != 0) {
KASSERT(MAXPAGESIZES > 1 && pagesizes[2] == 0,
("pmap_init: can't assign to pagesizes[2]"));
pagesizes[2] = NBPDP;
}
}
/*