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vm: implement lazy-attach cow-duplication of vm-objects attached to a controller

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This commit is contained in:
max 🍓
2026-04-19 20:16:19 +01:00
parent b3be4c541b
commit 4a9e907a75
9 changed files with 332 additions and 72 deletions
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include/kernel/syscall.h
+9 -1
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@@ -211,7 +211,7 @@ extern kern_status_t sys_kern_object_query(
extern kern_status_t sys_vm_controller_create(kern_handle_t *out);
extern kern_status_t sys_vm_controller_recv(
kern_handle_t ctrl,
equeue_packet_page_request_t *out);
equeue_packet_vm_request_t *out);
extern kern_status_t sys_vm_controller_recv_async(
kern_handle_t ctrl,
kern_handle_t eq,
@@ -224,6 +224,14 @@ extern kern_status_t sys_vm_controller_create_object(
size_t data_len,
vm_prot_t prot,
kern_handle_t *out);
extern kern_status_t sys_vm_controller_prepare_attach(
kern_handle_t ctrl,
uint64_t req_id,
kern_handle_t *out_vmo);
extern kern_status_t sys_vm_controller_finish_attach(
kern_handle_t ctrl,
uint64_t req_id,
equeue_key_t new_key);
extern kern_status_t sys_vm_controller_detach_object(
kern_handle_t ctrl,
kern_handle_t vmo);