linux.git/virt/kvm/kvm_trace.c, branch master Linux kernel source tree KVM: remove old KVMTRACE support code 2009-09-10T05:33:03+00:00 Marcelo Tosatti mtosatti@redhat.com 2009-06-18T14:47:28+00:00 2023a29cbe34139afcea8f65f8aef78c325c5dc0 Return EOPNOTSUPP for KVM_TRACE_ENABLE/PAUSE/DISABLE ioctls. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com> 
Return EOPNOTSUPP for KVM_TRACE_ENABLE/PAUSE/DISABLE ioctls.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
KVM: Prevent trace call into unloaded module text 2008-12-31T14:55:04+00:00 Wu Fengguang fengguang.wu@intel.com 2008-11-26T11:59:06+00:00 b82091824ee4970adf92d5cd6d57b12273171625 Add marker_synchronize_unregister() before module unloading. This prevents possible trace calls into unloaded module text. Signed-off-by: Wu Fengguang <wfg@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com> 
Add marker_synchronize_unregister() before module unloading.
This prevents possible trace calls into unloaded module text.

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
KVM: kvmtrace: replace get_cycles with ktime_get v3 2008-10-15T08:15:15+00:00 Christian Ehrhardt ehrhardt@linux.vnet.ibm.com 2008-07-14T12:00:01+00:00 3f7f95c65ef6a89472a28da1b9436eaeee288831 The current kvmtrace code uses get_cycles() while the interpretation would be easier using using nanoseconds. ktime_get() should give at least the same accuracy as get_cycles on all architectures (even better on 32bit archs) but at a better unit (e.g. comparable between hosts with different frequencies. [avi: avoid ktime_t in public header] Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com> 
The current kvmtrace code uses get_cycles() while the interpretation would be
easier using using nanoseconds. ktime_get() should give at least the same
accuracy as get_cycles on all architectures (even better on 32bit archs) but
at a better unit (e.g. comparable between hosts with different frequencies.

[avi: avoid ktime_t in public header]

Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
KVM: kvmtrace: Remove use of bit fields in kvm trace structure 2008-10-15T08:15:14+00:00 Christian Ehrhardt ehrhardt@linux.vnet.ibm.com 2008-07-14T12:00:00+00:00 e32c8f2c0720fb21c6f4a5f6ccbebdadc878f707 This patch fixes kvmtrace use on big endian systems. When using bit fields the compiler will lay data out in the wrong order expected when laid down into a file. This fixes it by using one variable instead of using bit fields. Signed-off-by: Jerone Young <jyoung5@us.ibm.com> Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com> 
This patch fixes kvmtrace use on big endian systems. When using bit fields the
compiler will lay data out in the wrong order expected when laid down into a
file.
This fixes it by using one variable instead of using bit fields.

Signed-off-by: Jerone Young <jyoung5@us.ibm.com>
Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
KVM: Support mixed endian machines 2008-07-20T09:42:32+00:00 Tan, Li li.tan@intel.com 2008-05-23T06:54:09+00:00 9ef621d3be56e1188300476a8102ff54f7b6793f Currently kvmtrace is not portable. This will prevent from copying a trace file from big-endian target to little-endian workstation for analysis. In the patch, kernel outputs metadata containing a magic number to trace log, and changes 64-bit words to be u64 instead of a pair of u32s. Signed-off-by: Tan Li <li.tan@intel.com> Acked-by: Jerone Young <jyoung5@us.ibm.com> Acked-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com> 
Currently kvmtrace is not portable. This will prevent from copying a
trace file from big-endian target to little-endian workstation for analysis.
In the patch, kernel outputs metadata containing a magic number to trace
log, and changes 64-bit words to be u64 instead of a pair of u32s.

Signed-off-by: Tan Li <li.tan@intel.com>
Acked-by: Jerone Young <jyoung5@us.ibm.com>
Acked-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
KVM: Rename debugfs_dir to kvm_debugfs_dir 2008-04-27T15:21:36+00:00 Hollis Blanchard hollisb@us.ibm.com 2008-04-15T21:05:42+00:00 76f7c87902fd2c2de9eb57168adbf9bc5ec2047d It's a globally exported symbol now. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com> 
It's a globally exported symbol now.

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
KVM: Add kvm trace userspace interface 2008-04-27T09:01:22+00:00 Feng(Eric) Liu eric.e.liu@intel.com 2008-04-10T12:47:53+00:00 d4c9ff2d1b78e385471b3f4d80c0596909926ef7 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> 
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>