摘要:
Methods and apparatus are disclosed to capture error conditions in lightweight virtual machine managers. A disclosed example method includes defining a shared memory structure between the VMM and a virtual machine (VM), when the VM is spawned by the VMM, installing an abort handler on the VM associated with a vector value, in response to detecting an error, transferring VMM state information to the shared memory structure, and invoking the abort handler on the VM to transfer contents of the shared memory structure to a non-volatile memory.
摘要:
A processing system includes a first register to store an invalidation mode flag associated with a virtual processor identifier (VPID) and a processing core, communicatively coupled to the first register, the processing core comprising a logic circuit to execute a virtual machine monitor (VMM) environment, the VMM environment comprising a root mode VMM supporting a non-root mode VMM, the non-root mode VMM to execute a virtual machine (VM) identified by the VPID, the logic circuit further comprising an invalidation circuit to execute a virtual processor invalidation (INVVPID) instruction issued by the non-root mode VMM, the INVVPID instruction comprising a reference to an INVVPID descriptor that specifies a linear address and the VPID and responsive to determining that the invalidation mode flag is set, invalidate, without triggering a VM exit event, a memory address mapping associated with the linear address.