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Diffstat (limited to 'arch/x86/kernel/kvmclock.c')
-rw-r--r--arch/x86/kernel/kvmclock.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index 0732f0089a3..d2c381280e3 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -160,8 +160,12 @@ int kvm_register_clock(char *txt)
{
int cpu = smp_processor_id();
int low, high, ret;
- struct pvclock_vcpu_time_info *src = &hv_clock[cpu].pvti;
+ struct pvclock_vcpu_time_info *src;
+
+ if (!hv_clock)
+ return 0;
+ src = &hv_clock[cpu].pvti;
low = (int)slow_virt_to_phys(src) | 1;
high = ((u64)slow_virt_to_phys(src) >> 32);
ret = native_write_msr_safe(msr_kvm_system_time, low, high);
@@ -276,6 +280,9 @@ int __init kvm_setup_vsyscall_timeinfo(void)
struct pvclock_vcpu_time_info *vcpu_time;
unsigned int size;
+ if (!hv_clock)
+ return 0;
+
size = PAGE_ALIGN(sizeof(struct pvclock_vsyscall_time_info)*NR_CPUS);
preempt_disable();