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check _PAGE_PWT and _PAGE_PCD directly instead of _PAGE_CACHE_WC

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Balazs Gerofi
2015-03-07 02:12:36 +09:00
parent b553de7435
commit 1f8265efbc
1 changed files with 3 additions and 2 deletions
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5
executer/kernel/syscall.c
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@@ -1239,8 +1239,9 @@ static int pager_req_pfn(ihk_os_t os, uintptr_t handle, off_t off, uintptr_t ppf
pfn |= PFN_VALID | PFN_PRESENT; pfn |= PFN_VALID | PFN_PRESENT;
/* Check if mapping is write-combined */ /* Check if mapping is write-combined */
if (pte_flags(*pte) & _PAGE_CACHE_WC) { if ((pte_flags(*pte) & _PAGE_PWT) &&
pfn |= _PAGE_CACHE_WC; !(pte_flags(*pte) & _PAGE_PCD)) {
pfn |= _PAGE_PWT;
} }
} }
pte_unmap(pte); pte_unmap(pte);