Some DMA controllers support direct virtual memory access, where the targets of 1/0 operations are specified as virtual addresses and a translation from virtual to physical address is performed during the DMA. How does this design complicate the design of the DMA controller? What are the advantages of providing such a functionality?
Some DMA controllers support direct virtual memory access, where the targets of 1/0 operations are specified as virtual addresses and a translation from virtual to physical address is performed during the DMA. How does this design complicate the design of the DMA controller? What are the advantages of providing such a functionality?
Chapter11: Operating Systems
Section: Chapter Questions
Problem 30VE
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![Some DMA controllers support direct virtual memory access, where
the targets of 1/0 operations are specified as virtual addresses and a
translation from virtual to physical address is performed during the
DMA. How does this design complicate the design of the DMA
controller? What are the advantages of providing such a
functionality?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe2f52efe-d4cb-4250-9b41-f833c38afbc6%2Ffda692cf-6d5e-4e29-8e94-dc8f0cb35d7c%2Fxg5b5qw_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Some DMA controllers support direct virtual memory access, where
the targets of 1/0 operations are specified as virtual addresses and a
translation from virtual to physical address is performed during the
DMA. How does this design complicate the design of the DMA
controller? What are the advantages of providing such a
functionality?
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