On 07/08/2009 06:32 AM, Zhai, Edwin wrote:
/*
+ * Indicate a busy-waiting vcpu in spinlock. We do not enable the PAUSE
+ * exiting, so only get here on cpu with PAUSE-Loop-Exiting.
+ */
+static int handle_pause(struct kvm_vcpu *vcpu,
+ struct kvm_run *kvm_run)
+{
+ skip_emulated_instruction(vcpu);
+ yield();
+ return 1;
+}
+
yield() does nothing in Linux. Please look at
http://lkml.org/lkml/2009/5/11/294 for what needs to be added to the
scheduler (that message is part of a thread discussing the same feature
for svm).
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
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