An information processing device (11; 61; 121) comprising: a virtual machine built in the information processing device and able to use a physical device included in the information processing device; and an information processing device failure managing means, built outside the virtual machine, for detecting a failure in the information processing device, wherein the virtual machine includes: a virtual machine failure managing means for detecting a failure in the physical device that the virtual machine can use; and a failure notifying means (44; 71; 131) for notifying the information processing device failure managing means of occurrence of a failure undetectable by the information processing device failure managing means during use of the virtual machine, among the failures in the physical device having been detected by the virtual machine failure managing means, the information processing device further comprising a list storing means for storing physical device information into a failure detection target list, the physical device information including information for identifying the physical device, wherein when the physical device information corresponding to the physical device which the virtual machine failure managing means has detected a failure from is stored in the failure detection target list, the virtual machine failure managing means is adapted to output notification of failure occurrence in the physical device, and the failure notifying means (44; 71; 131) is adapted thereupon to notify the information processing device failure managing means of the failure occurrence in the physical device; and wherein the list storing means stores, as the physical device information, information for identifying the physical device which the virtual machine is using and which the information processing device failure managing means cannot detect a failure from. a virtual machine built in the information processing device and able to use a physical device included in the information processing device; and an information processing device failure managing means, built outside the virtual machine, for detecting a failure in the information processing device, wherein the virtual machine includes: a virtual machine failure managing means for detecting a failure in the physical device that the virtual machine can use; and a failure notifying means (44; 71; 131) for notifying the information processing device failure managing means of occurrence of a failure undetectable by the information processing device failure managing means during use of the virtual machine, among the failures in the physical device having been detected by the virtual machine failure managing means, the information processing device further comprising a list storing means for storing physical device information into a failure detection target list, the physical device information including information for identifying the physical device, wherein when the physical device information corresponding to the physical device which the virtual machine failure managing means has detected a failure from is stored in the failure detection target list, the virtual machine failure managing means is adapted to output notification of failure occurrence in the physical device, and the failure notifying means (44; 71; 131) is adapted thereupon to notify the information processing device failure managing means of the failure occurrence in the physical device; and wherein the list storing means stores, as the physical device information, information for identifying the physical device which the virtual machine is using and which the information processing device failure managing means cannot detect a failure from. a virtual machine failure managing means for detecting a failure in the physical device that the virtual machine can use; and a failure notifying means (44; 71; 131) for notifying the information processing device failure managing means of occurrence of a failure undetectable by the information processing device failure managing means during use of the virtual machine, among the failures in the physical device having been detected by the virtual machine failure managing means, the information processing device further comprising a list storing means for storing physical device information into a failure detection target list, the physical device information including information for identifying the physical device, wherein when the physical device information corresponding to the physical device which the virtual machine failure managing means has detected a failure from is stored in the failure detection target list, the virtual machine failure managing means is adapted to output notification of failure occurrence in the physical device, and the failure notifying means (44; 71; 131) is adapted thereupon to notify the information processing device failure managing means of the failure occurrence in the physical device; and wherein the list storing means stores, as the physical device information, information for identifying the physical device which the virtual machine is using and which the information processing device failure managing means cannot detect a failure from.