x86: cpa selftest, skip non present entries
pud and pmd entries in the RAM area might be marked as non present. Do not try to modify them in the selftest. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>hifive-unleashed-5.1
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07cf89c05f
commit
64f351d197
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@ -137,7 +137,8 @@ static __init int exercise_pageattr(void)
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for (k = 0; k < len[i]; k++) {
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for (k = 0; k < len[i]; k++) {
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pte = lookup_address(addr[i] + k*PAGE_SIZE, &level);
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pte = lookup_address(addr[i] + k*PAGE_SIZE, &level);
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if (!pte || pgprot_val(pte_pgprot(*pte)) == 0) {
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if (!pte || pgprot_val(pte_pgprot(*pte)) == 0 ||
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!(pte_val(*pte) & _PAGE_PRESENT)) {
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addr[i] = 0;
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addr[i] = 0;
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break;
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break;
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}
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}
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