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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-05-01 02:25:37 +0200 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-05-01 02:25:37 +0200 |
| commit | ded813a44263103a28e1788489ec0fef7e8d1c7e (patch) | |
| tree | 77bc52c178b5eebe2b718e602e9152c1474a47bd /vm/vm_kern.h | |
| parent | 0cf03cdab38bd588390ddecc7086d8bb0f56d71f (diff) | |
| download | gnumach-ded813a44263103a28e1788489ec0fef7e8d1c7e.tar.gz gnumach-ded813a44263103a28e1788489ec0fef7e8d1c7e.tar.bz2 gnumach-ded813a44263103a28e1788489ec0fef7e8d1c7e.zip | |
Add kmem_valloc
Functions like vremap need to allocate some virtual addressing space
before making their own mapping. kmem_alloc_wired can be used for that
but that wastes memory.
* vm/vm_kern.c (kmem_valloc): New function.
* vm/vm_kern.h (kmem_valloc): New prototype.
* linux/dev/glue/kmem.c (vremap): Call kmem_valloc instead of
kmem_alloc_wired. Also check that `offset' is aligned on a page.
Diffstat (limited to 'vm/vm_kern.h')
| -rw-r--r-- | vm/vm_kern.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/vm/vm_kern.h b/vm/vm_kern.h index 4bd89c49..0cdb19db 100644 --- a/vm/vm_kern.h +++ b/vm/vm_kern.h @@ -52,6 +52,7 @@ extern void kmem_init(vm_offset_t, vm_offset_t); extern kern_return_t kmem_alloc(vm_map_t, vm_offset_t *, vm_size_t); extern kern_return_t kmem_alloc_pageable(vm_map_t, vm_offset_t *, vm_size_t); +extern kern_return_t kmem_valloc(vm_map_t, vm_offset_t *, vm_size_t); extern kern_return_t kmem_alloc_wired(vm_map_t, vm_offset_t *, vm_size_t); extern kern_return_t kmem_alloc_aligned(vm_map_t, vm_offset_t *, vm_size_t); extern void kmem_free(vm_map_t, vm_offset_t, vm_size_t); |