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Add user vmspace locking and remapping routines. Obviously, these 

currently work only if the vmspace is local to the rump kernel.
This commit is contained in:
pooka 2009-06-03 16:06:10 +00:00
parent 2c5f264f9b
commit 8f814de2c0
1 changed files with 36 additions and 2 deletions
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38
sys/rump/librump/rumpkern/vm.c
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@ -1,4 +1,4 @@
/* $NetBSD: vm.c,v 1.56 2009/05/03 16:53:54 pooka Exp $ */
/* $NetBSD: vm.c,v 1.57 2009/06/03 16:06:10 pooka Exp $ */
/*
* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
@ -42,7 +42,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: vm.c,v 1.56 2009/05/03 16:53:54 pooka Exp $");
__KERNEL_RCSID(0, "$NetBSD: vm.c,v 1.57 2009/06/03 16:06:10 pooka Exp $");
#include <sys/param.h>
#include <sys/atomic.h>
@ -565,3 +565,37 @@ uvm_km_free_poolpage_cache(struct vm_map *map, vaddr_t vaddr)
rumpuser_unmap((void *)vaddr, PAGE_SIZE);
}
/*
* Mapping and vm space locking routines.
* XXX: these don't work for non-local vmspaces
*/
int
uvm_vslock(struct vmspace *vs, void *addr, size_t len, vm_prot_t access)
{
KASSERT(vs == &rump_vmspace);
return 0;
}
void
uvm_vsunlock(struct vmspace *vs, void *addr, size_t len)
{
KASSERT(vs == &rump_vmspace);
}
void
vmapbuf(struct buf *bp, vsize_t len)
{
bp->b_saveaddr = bp->b_data;
}
void
vunmapbuf(struct buf *bp, vsize_t len)
{
bp->b_data = bp->b_saveaddr;
bp->b_saveaddr = 0;
}