VIRTUAL PARTITIONING A PROCESSOR-IN-MEMORY ("PIM")
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United States of America
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Issued Date -
Nov 28, 2024
app pub date -
Jun 17, 2024
filing date -
Jun 17, 2024
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Abstract
Process isolation for a PIM device includes: receiving, from a process, a call to allocate a virtual address space where the process stores a PIM configuration context; allocating the virtual address space including mapping a physical address space including PIM device configuration registers to the virtual address space only if the physical address space is not mapped to another process's virtual address space; and programming the PIM device configuration space according to the configuration context. When a PIM command is executed, a translation mechanism determines whether there is a valid mapping of a virtual address of the PIM command to a physical address of a PIM resource, such as a LIS entry. If a valid mapping exists, the translation is completed and the resource is accessed, but if there is not a valid mapping, the translation fails and the process is blocked from accessing the PIM resource.
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