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KVM: Protect update_cr8_intercept() when running without an apic 

update_cr8_intercept() can be triggered from userspace while there
is no apic present.

Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity 2009-08-17 22:49:40 +03:00
parent 95eb84a758
commit 88c808fd42
1 changed files with 3 additions and 0 deletions
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3
arch/x86/kvm/x86.c
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@ -3500,6 +3500,9 @@ static void update_cr8_intercept(struct kvm_vcpu *vcpu)
if (!kvm_x86_ops->update_cr8_intercept)
return;
if (!vcpu->arch.apic)
return;
if (!vcpu->arch.apic->vapic_addr)
max_irr = kvm_lapic_find_highest_irr(vcpu);
else