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Tofu: manage stag ranges in VM range split and misc cleanup

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Conflicts:
	kernel/process.c

Change-Id: I480850fe93a7963a5bd4d1687fb1e5c43f58057f
This commit is contained in:
Balazs Gerofi
2021-01-12 20:36:12 +09:00
committed by Masamichi Takagi
parent 507b937509
commit bf926f234a
3 changed files with 127 additions and 19 deletions
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14
kernel/process.c
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@@ -965,8 +965,18 @@ int split_process_memory_range(struct process_vm *vm, struct vm_range *range,
newrange->private_data = range->private_data;
#ifdef ENABLE_TOFU
/* TODO: figure out which entries to put on which list! */
INIT_LIST_HEAD(&newrange->tofu_stag_list);
{
extern int tofu_stag_split_vm_range_on_addr(struct process_vm *vm,
struct vm_range *range_low, struct vm_range *range_high,
uintptr_t addr);
int moved =
tofu_stag_split_vm_range_on_addr(vm, range, newrange, addr);
if (moved > 0) {
kprintf("%s: moved %d stag ranges\n", __func__, moved);
}
}
#endif
if (range->memobj) {
@@ -1182,7 +1192,7 @@ straight_out:
entries = tofu_stag_range_remove_overlapping(vm, range);
if (entries > 0) {
kprintf("%s: removed %d Tofu stag entries for range 0x%lx:%lu\n",
dkprintf("%s: removed %d Tofu stag entries for range 0x%lx:%lu\n",
__func__,
entries,
range->start,