diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 38491962b2c1..2c50ebf4ff1b 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -1098,6 +1098,7 @@ static void add_atomic_switch_msr(struct vcpu_vmx *vmx, unsigned msr, { int i, j = 0; struct msr_autoload *m = &vmx->msr_autoload; + struct kvm *kvm = vmx->vcpu.kvm; switch (msr) { case MSR_EFER: @@ -1134,12 +1135,10 @@ static void add_atomic_switch_msr(struct vcpu_vmx *vmx, unsigned msr, i = vmx_find_loadstore_msr_slot(&m->guest, msr); j = vmx_find_loadstore_msr_slot(&m->host, msr); - if ((i < 0 && m->guest.nr == MAX_NR_LOADSTORE_MSRS) || - (j < 0 && m->host.nr == MAX_NR_LOADSTORE_MSRS)) { - printk_once(KERN_WARNING "Not enough msr switch entries. " - "Can't add msr %x\n", msr); + if (KVM_BUG_ON(i < 0 && m->guest.nr == MAX_NR_LOADSTORE_MSRS, kvm) || + KVM_BUG_ON(j < 0 && m->host.nr == MAX_NR_LOADSTORE_MSRS, kvm)) return; - } + if (i < 0) { i = m->guest.nr++; vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, m->guest.nr);