diff options
Diffstat (limited to 'arch/arm/kvm/mmio.c')
| -rw-r--r-- | arch/arm/kvm/mmio.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm/kvm/mmio.c b/arch/arm/kvm/mmio.c index 3a10c9f1d..0f6600f05 100644 --- a/arch/arm/kvm/mmio.c +++ b/arch/arm/kvm/mmio.c @@ -206,12 +206,16 @@ int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run, run->mmio.is_write = is_write; run->mmio.phys_addr = fault_ipa; run->mmio.len = len; - memcpy(run->mmio.data, data_buf, len); + if (is_write) + memcpy(run->mmio.data, data_buf, len); if (!ret) { /* We handled the access successfully in the kernel. */ + vcpu->stat.mmio_exit_kernel++; kvm_handle_mmio_return(vcpu, run); return 1; + } else { + vcpu->stat.mmio_exit_user++; } run->exit_reason = KVM_EXIT_MMIO; |