STRUCT VM_MEMORY_REGION_OP(9)

💖 NAME 💖

okay so bestie, welcome to the Kernel API Manual page for struct vm_memory_region_op(9) — literally the hypervisor memory operation moment 💅. The official one-liner is:

struct vm_memory_region_op — Hypervisor memory operation ✨

✨ SYNOPSIS ✨

       struct vm_memory_region_op {
           u32 type;
           u32 attr;
           u64 user_vm_pa;
           u64 service_vm_pa;
           u64 size;
        };

🫶 Members 🫶

• type — Operation type (ACRN_MEM_REGION_*) — the “what kind of op are we doing” label 👑.
• attr — Memory attribute (ACRN_MEM_TYPE_* | ACRN_MEM_ACCESS_*) — the memory’s whole vibe and access-permission sitch 🎀.
• user_vm_pa — Physical address of User VM to be mapped 📍.
• service_vm_pa — Physical address of Service VM to be mapped 📍.
• size — Size of this region 📏.

🌈 Description 🌈

This struct is the info packet you hand to the ACRN Hypervisor so it can manage the EPT mappings of a single memory region of the User VM 🧚. It contains the needed information, no cap. Several struct vm_memory_region_op can be batched to ACRN Hypervisor — see struct vm_memory_region_batch 🦋.

🔥 SEE ALSO 🔥

• Kernel file ./drivers/virt/acrn/acrn_drv.h, struct vm_memory_region_batch(9) 👀
• struct vm_memory_mapping(9)
• struct acrn_ioreq_buffer(9)
• struct acrn_ioreq_client(9)
• struct acrn_vm(9)

mwah 💋 — sourced from ./drivers/virt/acrn, dated October 2026, all about struct vm_memory_region_op(9) ✨