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| author | Avi Kivity <avi@redhat.com> | 2009-08-17 21:49:40 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-09-10 09:46:54 +0200 |
| commit | 88c808fd42b53a7e01a2ac3253ef31fef74cb5af (patch) | |
| tree | 570998f7bc61caa35c493bca3b1ca50a3f74af0c | |
| parent | KVM: VMX: Fix EPT with WP bit change during paging (diff) | |
| download | linux-88c808fd42b53a7e01a2ac3253ef31fef74cb5af.tar.xz linux-88c808fd42b53a7e01a2ac3253ef31fef74cb5af.zip | |
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>
| -rw-r--r-- | arch/x86/kvm/x86.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 59a8ba4d56bd..35e7fc54de35 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -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 |