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| author | Feng(Eric) Liu <eric.e.liu@intel.com> | 2008-04-10 08:47:53 -0400 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-04-27 12:01:22 +0300 |
| commit | d4c9ff2d1b78e385471b3f4d80c0596909926ef7 (patch) | |
| tree | 5551c0f6c56439df39ca434115840f4e36cee2ea /include/linux/kvm_host.h | |
| parent | 048354c8e6bf95e7347f623d8a0da5b89e216405 (diff) | |
| download | lwn-d4c9ff2d1b78e385471b3f4d80c0596909926ef7.tar.gz lwn-d4c9ff2d1b78e385471b3f4d80c0596909926ef7.zip | |
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 <eric.e.liu@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'include/linux/kvm_host.h')
| -rw-r--r-- | include/linux/kvm_host.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 578c3638bbba..bd0c2d2d840f 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -15,6 +15,7 @@ #include <linux/sched.h> #include <linux/mm.h> #include <linux/preempt.h> +#include <linux/marker.h> #include <asm/signal.h> #include <linux/kvm.h> @@ -309,5 +310,18 @@ struct kvm_stats_debugfs_item { struct dentry *dentry; }; extern struct kvm_stats_debugfs_item debugfs_entries[]; +extern struct dentry *debugfs_dir; + +#ifdef CONFIG_KVM_TRACE +int kvm_trace_ioctl(unsigned int ioctl, unsigned long arg); +void kvm_trace_cleanup(void); +#else +static inline +int kvm_trace_ioctl(unsigned int ioctl, unsigned long arg) +{ + return -EINVAL; +} +#define kvm_trace_cleanup() ((void)0) +#endif #endif |