CODEWITHSUNDEEP
rdma
HuangJie
HuangJie

Reputation: 1530

memory protection in Remote Direct Memory Access (RDMA)

Let's say I have a process that registers a piece of RDMA-accessible memory with LOCAL WRITE permission.

Does another (local) random process has the write permission to that piece of physical memory?

Upvotes: 2

Views: 215

Answers (1)

haggai_e
haggai_e

Reputation: 4820

No, only queue pairs that were created with the same protection domain (PD) as the MR can access it. Since another random process cannot use your process's PD, it also cannot use your MR.

Upvotes: 1

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