摘要:
An instruction is provided to establish various operational parameters for an adapter. These parameters include adapter interruption parameters, input/output address translation parameters, resetting error indications, setting measurement parameters, and setting an interception control, as examples. The instruction specifies a function information block, which is a program representation of a device table entry used by the adapter, to be used in certain situations in establishing the parameters. A store instruction is also provided that stores the current contents of the function information block.
摘要:
An instruction is provided to establish various operational parameters for an adapter. These parameters include adapter interruption parameters, input/output address translation parameters, resetting error indications, setting measurement parameters, and setting an interception control, as examples. The instruction specifies a function information block, which is a program representation of a device table entry used by the adapter, to be used in certain situations in establishing the parameters. A store instruction is also provided that stores the current contents of the function information block.
摘要:
An instruction is provided to establish various operational parameters for an adapter. These parameters include adapter interruption parameters, input/output address translation parameters, resetting error indications, setting measurement parameters, and setting an interception control, as examples. The instruction specifies a function information block, which is a program representation of a device table entry used by the adapter, to be used in certain situations in establishing the parameters. A store instruction is also provided that stores the current contents of the function information block.
摘要:
Access to an input/output adapter by a configuration is controlled. For each requested access to an adapter, checks are made to determine whether the configuration is authorized to access the adapter. If it is not authorized, then access is denied. If it is authorized, but access should be temporarily blocked, then instruction execution is altered to indicate such. If access is permitted, but should be blocked for another reason (other than temporarily), then access is denied.
摘要:
An authorization mechanism allows a host executing a guest operating system to grant permission for the guest to directly access an adapter function's address spaces without host intervention. This access is via instructions implemented based on the architecture of the adapter function. The host also has the capability to intervene in the execution of the instruction, if desired.
摘要:
Communication with adapters of a computing environment is facilitated. Instructions are provided that explicitly target the adapters. Information provided in an instruction is used to steer the instruction to an appropriate location within the adapter.
摘要:
Communication with adapters of a computing environment is facilitated. Instructions are provided that explicitly target the adapters. Information provided in an instruction is used to steer the instruction to an appropriate location within the adapter.
摘要:
Communication with adapters of a computing environment is facilitated. Instructions are provided that explicitly target the adapters. Information provided in an instruction is used to steer the instruction to an appropriate location within the adapter.
摘要:
Communication with adapters of a computing environment is facilitated. Control instructions specifically designed for communicating data to and from adapters are provided to facilitate the communication. The instructions explicitly target the adapters. Information provided in an instruction is used to steer the instruction to an appropriate location within the adapter, such as a Peripheral Component Interconnect (PCI) or Peripheral Component Interconnect Express (PCIe) adapter.
摘要:
An authorization mechanism allows a host executing a guest operating system to grant permission for the guest to directly access an adapter function's address spaces without host intervention. This access is via instructions implemented based on the architecture of the adapter function. The host also has the capability to intervene in the execution of the instruction, if desired.