Fujitsu Corporation

Kensuke Ishida

Takuji Takahashi

Hiroyuki Oka

Masaaki Nagatsuka

Takashi Koguchi

Hideharu Kanaya

Tohru Koizumi

Ikuroh Fujiwara

Hajime Ogino

Akiko Ootoshi

An information processing apparatus of the embodiment includes: a data storage unit to store a virtual address in association with first information that includes at least identification information of a slot; and circuitry. And the circuitry is configured to: detect an interrupt that notifies an operating system that a first PCI card was replaced and is output from a second PCI card by which the first PCI card was replaced on a certain slot; extract, from the data storage unit, a virtual address associated with first information that includes identification information of the certain slot, upon detecting the interrupt; and set the second PCI card so as to communicate using the extracted virtual address.

Information processing apparatus and method for hot plug

A memory dump method includes performing information processing using a first partition including a first device board and a second device, detecting an error in the first device, after detecting the error, performing information processing using a second partition including a third device, after detecting the error, performing a memory dump on each of the first device and the second device to obtain dump data, and after the memory dump is performed, adding the second device to the second partition.

Memory dump method, information processing apparatus, and non-transitory computer-readable storage medium

An information processing device includes a replacement function of a system unit in a partition and a TPM (trusted platform module) function in the system unit. The system unit sets the TPM to valid or invalid and a management unit sets a reserved system board in the partition. The TPM setting information of the system unit and the reserved setting information of the system unit by the management unit are notified each other and are exclusive controlled. It is effectively possible to execute a reserved SB function, which integrates the reserved system board and re-starts without manual operation even though using a system unit which mounts the trusted platform module.

Information processing device, a hardware setting method for an information processing device and a computer readable storage medium stored its program

A power-supply control apparatus uses a margin setting unit to set the value of a margin that is added to a request voltage value VIDof an electronic device, which dynamically changes the operation voltage. A margin adding unit calculates a control voltage value VIDby adding the margin to the request voltage value VIDand outputs the control voltage value VIDto a power-supply apparatus. Therefore, the power-supply apparatus can supply a margin-included voltage value that is changed in accordance with a change in the operation voltage of the electronic device. Accordingly, it is possible to check the electronic device, which dynamically changes its operation voltage, by using a margin that is properly set.

Power-supply control apparatus and power-supply control method

A clock supply method for supplying a clock to a plurality of processing units includes supplying a clock from a first clock supply unit to processing units forming a first group as a primary clock and to processing units forming a second group as a standby clock; supplying a clock from a second clock supply unit including a clock source different from that of the first clock supply unit to the processing units forming the second group as a primary clock and to the processing units forming the first group as a standby clock; and when a processing unit in the first or second group detects an abnormality of the primary clock, switching the standby clock into use in place of the primary clock being supplied to the processing units that has detected the abnormality belongs; wherein the first and second clock supply units supply clocks with the same frequency.

Clock supply method and information processing apparatus

The DMA data transfer apparatus includes a memory, a communication controller, a DMA controller having a plurality of DMA engines each of which transfers data by DMA to the communication controller from the memory, and a DMA control unit. The DMA control unit determines a division size of transfer data such that the DMA engine can transfer the data, issues a data transfer directive by the DMA to the DMA controller, and controls data transfer by the DMA. The DMA control unit transmits the determination information for determination of the termination of data transfer to the communication controller. The communication controller determines the termination of data transfer based on the determination information transmitted from the DMA control unit.

Growing community of inventors

Yokohama, Japan

Kensuke Ishida