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Don't call pmap_demote_DMAP() on MTRR entries from the BIOS that are marked

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as "bogus".

Reported by:	Jia-Shiun Li
This commit is contained in:
Alan Cox 2010-11-07 21:48:49 +00:00
parent e48262487a
commit d9a799683c
1 changed files with 2 additions and 2 deletions
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4
sys/amd64/amd64/amd64_mem.c
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@ -583,7 +583,7 @@ amd64_mrset(struct mem_range_softc *sc, struct mem_range_desc *mrd, int *arg)
i = (sc->mr_cap & MR686_FIXMTRR) ? MTRR_N64K + MTRR_N16K + MTRR_N4K : 0;
mrd = sc->mr_desc + i;
for (; i < sc->mr_ndesc; i++, mrd++) {
if (mrd->mr_flags & MDF_ACTIVE)
if ((mrd->mr_flags & (MDF_ACTIVE | MDF_BOGUS)) == MDF_ACTIVE)
pmap_demote_DMAP(mrd->mr_base, mrd->mr_len, FALSE);
}
@ -688,7 +688,7 @@ amd64_mrinit(struct mem_range_softc *sc)
i = (sc->mr_cap & MR686_FIXMTRR) ? MTRR_N64K + MTRR_N16K + MTRR_N4K : 0;
mrd = sc->mr_desc + i;
for (; i < sc->mr_ndesc; i++, mrd++) {
if (mrd->mr_flags & MDF_ACTIVE)
if ((mrd->mr_flags & (MDF_ACTIVE | MDF_BOGUS)) == MDF_ACTIVE)
pmap_demote_DMAP(mrd->mr_base, mrd->mr_len, TRUE);
}
}