[PATCH] Fix block mode during halt emulation

[Dor Laor <dor.laor@qumranet.com>]

[-- Attachment #1: Type: text/plain, Size: 1012 bytes --]

>From d85feaae019bc0abc98a2524369e04d521a78aa8 Mon Sep 17 00:00:00 2001
From: Dor Laor <dor.laor@qumranet.com>
Date: Mon, 30 Jun 2008 18:22:44 -0400
Subject: [PATCH] Fix block mode hduring halt emulation

There is no need to check for pending pit/apic timer, nor
pending virq, since all of the check KVM_MP_STATE_RUNNABLE
and wakeup the waitqueue.

It fixes 100% cpu when windows guest is shutdown (non acpi HAL)

Signed-off-by: Dor Laor <dor.laor@qumranet.com>
---
 virt/kvm/kvm_main.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index b90da0b..faa0778 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -816,10 +816,6 @@ void kvm_vcpu_block(struct kvm_vcpu *vcpu)
 	for (;;) {
 		prepare_to_wait(&vcpu->wq, &wait, TASK_INTERRUPTIBLE);
 
-		if (kvm_cpu_has_interrupt(vcpu))
-			break;
-		if (kvm_cpu_has_pending_timer(vcpu))
-			break;
 		if (kvm_arch_vcpu_runnable(vcpu))
 			break;
 		if (signal_pending(current))
-- 
1.5.4

[-- Attachment #2: 0001-Fix-block-mode-during-halt-emulation.patch --]
[-- Type: application/mbox, Size: 1012 bytes --]