vcpu->arch.apic may be NULL.
Signed-off-by: Avi Kivity <a...@redhat.com>
---
arch/x86/kvm/x86.c | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 83b839f..aa11707 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -600,6 +600,8 @@ static bool guest_cpuid_has_fsgsbase(struct kvm_vcpu *vcpu)
static void update_cpuid(struct kvm_vcpu *vcpu)
{
struct kvm_cpuid_entry2 *best;
+ struct kvm_lapic *apic = vcpu->arch.apic;
+ u32 timer_mode_mask;
best = kvm_find_cpuid_entry(vcpu, 1, 0);
if (!best)
@@ -615,9 +617,12 @@ static void update_cpuid(struct kvm_vcpu *vcpu)
if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL &&
best->function == 0x1) {
best->ecx |= bit(X86_FEATURE_TSC_DEADLINE_TIMER);
- vcpu->arch.apic->lapic_timer.timer_mode_mask = (3 << 17);
+ timer_mode_mask = 3 << 17;
} else
- vcpu->arch.apic->lapic_timer.timer_mode_mask = (1 << 17);
+ timer_mode_mask = 1 << 17;
+
+ if (apic)
+ apic->lapic_timer.timer_mode_mask = timer_mode_mask;
}
int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
--
1.7.6.3
--
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