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vm: evict PTE entries for transferred vm-object pages

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This commit is contained in:
max 🍓
2026-03-15 14:40:24 +00:00
parent 399742cabf
commit a2e918c428
3 changed files with 42 additions and 6 deletions
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12
vm/address-space.c
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@@ -659,6 +659,7 @@ kern_status_t address_space_map(
}
object_ref(&object->vo_base);
area->vma_space = root;
area->vma_object = object;
area->vma_prot = prot;
area->vma_object_offset = object_offset;
@@ -726,6 +727,7 @@ static kern_status_t split_area(
left->vma_base = left_base;
left->vma_limit = left_base + left_length - 1;
right->vma_space = left->vma_space;
right->vma_object = left->vma_object;
right->vma_prot = left->vma_prot;
right->vma_object_offset = right_object_offset;
@@ -983,6 +985,7 @@ kern_status_t address_space_reserve(
return KERN_NO_MEMORY;
}
area->vma_space = space;
area->vma_base = base;
area->vma_limit = base + length - 1;
@@ -1142,6 +1145,7 @@ static kern_status_t request_missing_page(
irq_flags);
if (!pg) {
vm_object_unlock_irqrestore(object, *irq_flags);
printk("page request for %zx failed", addr);
return KERN_FATAL_ERROR;
}
@@ -1203,8 +1207,12 @@ kern_status_t address_space_demand_map(
object_offset,
VMO_ALLOCATE_MISSING_PAGE,
NULL);
// tracek("vm: mapping %07llx -> %10llx", vm_page_get_paddr(pg),
// addr);
// tracek("vm: mapping %07llx -> %10llx", vm_page_get_paddr(pg), addr);
if (!pg) {
return KERN_FATAL_ERROR;
}
kern_status_t status = pmap_add(
region->s_pmap,
addr,