From d4c9ff2d1b78e385471b3f4d80c0596909926ef7 Mon Sep 17 00:00:00 2001 From: "Feng(Eric) Liu" Date: Thu, 10 Apr 2008 08:47:53 -0400 Subject: KVM: Add kvm trace userspace interface This interface allows user a space application to read the trace of kvm related events through relayfs. Signed-off-by: Feng (Eric) Liu Signed-off-by: Avi Kivity --- virt/kvm/kvm_main.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'virt/kvm/kvm_main.c') diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 6a52c084e068..d5911d9895c3 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -60,7 +60,7 @@ EXPORT_SYMBOL_GPL(kvm_vcpu_cache); static __read_mostly struct preempt_ops kvm_preempt_ops; -static struct dentry *debugfs_dir; +struct dentry *debugfs_dir; static long kvm_vcpu_ioctl(struct file *file, unsigned int ioctl, unsigned long arg); @@ -1191,6 +1191,11 @@ static long kvm_dev_ioctl(struct file *filp, r += PAGE_SIZE; /* pio data page */ #endif break; + case KVM_TRACE_ENABLE: + case KVM_TRACE_PAUSE: + case KVM_TRACE_DISABLE: + r = kvm_trace_ioctl(ioctl, arg); + break; default: return kvm_arch_dev_ioctl(filp, ioctl, arg); } @@ -1519,6 +1524,7 @@ EXPORT_SYMBOL_GPL(kvm_init); void kvm_exit(void) { + kvm_trace_cleanup(); misc_deregister(&kvm_dev); kmem_cache_destroy(kvm_vcpu_cache); sysdev_unregister(&kvm_sysdev); -- cgit v1.2.3