Commit a4c0364b authored Jun 06, 2009 by Avi Kivity

KVM: Explicity initialize cpus_hardware_enabled



Under CONFIG_MAXSMP, cpus_hardware_enabled is allocated from the heap and
not statically initialized.  This causes a crash on reboot when kvm thinks
vmx is enabled on random nonexistent cpus and accesses nonexistent percpu
lists.

Fix by explicitly clearing the variable.

Cc: stable@kernel.org
Reported-and-tested-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Avi Kivity <avi@redhat.com>

parent ccc0d38e

virt/kvm/kvm_main.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -2305,6 +2305,7 @@ int kvm_init(void *opaque, unsigned int vcpu_size,
		r = -ENOMEM;
		goto out_free_0;
		}
		cpumask_clear(cpus_hardware_enabled);

		r = kvm_arch_hardware_setup();
		if (r < 0)