From: Jeremy Katz <katzj@redhat.com>
Date: Mon, 19 Feb 2007 12:37:46 +0000 (+0200)
Subject: KVM: Move virtualization deactivation from CPU_DEAD state to CPU_DOWN_PREPARE
X-Git-Tag: v2.6.21-rc3~127
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=43934a38d7cb39ff33baedc7f2c40a2a891116fa;p=linux-2.6

KVM: Move virtualization deactivation from CPU_DEAD state to CPU_DOWN_PREPARE

This gives it more chances of surviving suspend.

Signed-off-by: Jeremy Katz <katzj@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---

diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index af866147ff..0a96c2c7e1 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -2080,13 +2080,17 @@ static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
 	int cpu = (long)v;
 
 	switch (val) {
-	case CPU_DEAD:
+	case CPU_DOWN_PREPARE:
 	case CPU_UP_CANCELED:
+		printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",
+		       cpu);
 		decache_vcpus_on_cpu(cpu);
 		smp_call_function_single(cpu, kvm_arch_ops->hardware_disable,
 					 NULL, 0, 1);
 		break;
-	case CPU_UP_PREPARE:
+	case CPU_ONLINE:
+		printk(KERN_INFO "kvm: enabling virtualization on CPU%d\n",
+		       cpu);
 		smp_call_function_single(cpu, kvm_arch_ops->hardware_enable,
 					 NULL, 0, 1);
 		break;