From: Avi Kivity <[EMAIL PROTECTED]>
When preparing to enter the guest, if an interrupt comes in while
preemption is disabled but interrupts are still enabled, we miss a
preemption point. Fix by explicitly checking whether we need to
reschedule.
Signed-off-by: Thomas Gleixner <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 77d57ff..f0493e7 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2535,6 +2535,13 @@ again:
local_irq_disable();
+ if (need_resched()) {
+ local_irq_enable();
+ preempt_enable();
+ r = 1;
+ goto out;
+ }
+
if (signal_pending(current)) {
local_irq_enable();
preempt_enable();
-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
kvm-commits mailing list
kvm-commits@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/kvm-commits
