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ihk_mc_pt_set_pte(): double check phys address alignment

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Balazs Gerofi
2016-12-07 11:23:45 +09:00
parent 7070094a31
commit b0f4ae4890
1 changed files with 10 additions and 0 deletions
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10
arch/x86/kernel/memory.c
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@@ -1779,9 +1779,19 @@ int ihk_mc_pt_set_pte(page_table_t pt, pte_t *ptep, size_t pgsize,
*ptep = phys | attr_to_l1attr(attr);
}
else if (pgsize == PTL2_SIZE) {
if (phys & (PTL2_SIZE - 1)) {
kprintf("%s: error: phys needs to be PTL2_SIZE aligned\n", __FUNCTION__);
error = -1;
goto out;
}
*ptep = phys | attr_to_l2attr(attr | PTATTR_LARGEPAGE);
}
else if ((pgsize == PTL3_SIZE) && (use_1gb_page)) {
if (phys & (PTL3_SIZE - 1)) {
kprintf("%s: error: phys needs to be PTL3_SIZE aligned\n", __FUNCTION__);
error = -1;
goto out;
}
*ptep = phys | attr_to_l3attr(attr | PTATTR_LARGEPAGE);
}
else {