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2015-11-05replay: introduce icount eventPavel Dovgalyuk3-0/+78
This patch adds icount event to the replay subsystem. This event corresponds to execution of several instructions and used to synchronize input events in the replay phase. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20150917162354.8676.31351.stgit@PASHA-ISP.def.inno> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-11-05replay: introduce mutex to protect the replay logPavel Dovgalyuk2-0/+34
This mutex will protect read/write operations for replay log. Using mutex is necessary because most of the events consist of several fields stored in the log. The mutex will help to avoid races. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20150917162348.8676.8628.stgit@PASHA-ISP.def.inno> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-11-05replay: internal functions for replay logPavel Dovgalyuk3-0/+202
This patch adds functions to perform read and write operations with replay log. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20150917162342.8676.29445.stgit@PASHA-ISP.def.inno> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-11-05replay: global variables and function stubsPavel Dovgalyuk2-0/+15
This patch adds global variables, defines, function declarations, and function stubs for deterministic VM replay used by external modules. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20150917162337.8676.41538.stgit@PASHA-ISP.def.inno> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>