Re: [PATCH v2 3/4] KVM: MMU: Atomically check for accessed bit when dropping an spte

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On 06/08/2010 05:07 AM, Xiao Guangrong wrote:

Avi Kivity wrote:

+static u64 __xchg_spte(u64 *sptep, u64 new_spte)
+{
+#ifdef CONFIG_X86_64
+	return xchg(sptep, new_spte);
+#else
+	u64 old_spte;
+
+	do {
+		old_spte = *sptep;
+	} while (cmpxchg64(sptep, old_spte, new_spte) != old_spte);
+
+	return old;
it's a typo: 'old' ->  'old_spte' :-)

Thanks.  Reminds me I need to test i386 too.

--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.

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