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Add virtual_start to pmap_limits. This allows MD to steal address space 

before pmap_bootstrap.
This commit is contained in:
matt 2015-06-11 05:27:07 +00:00
parent d8c91f91dd
commit b9c0826d5d
2 changed files with 9 additions and 6 deletions
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12
sys/uvm/pmap/pmap.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.11 2015/02/03 10:25:53 nonaka Exp $ */
/* $NetBSD: pmap.c,v 1.12 2015/06/11 05:27:07 matt Exp $ */
/*-
* Copyright (c) 1998, 2001 The NetBSD Foundation, Inc.
@ -67,7 +67,7 @@
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.11 2015/02/03 10:25:53 nonaka Exp $");
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.12 2015/06/11 05:27:07 matt Exp $");
/*
* Manages physical address maps.
@ -214,7 +214,9 @@ struct pmap_kernel kernel_pmap_store = {
struct pmap * const kernel_pmap_ptr = &kernel_pmap_store.kernel_pmap;
struct pmap_limits pmap_limits;
struct pmap_limits pmap_limits = {
.virtual_start = VM_MIN_KERNEL_ADDRESS,
};
#ifdef UVMHIST
static struct kern_history_ent pmapexechistbuf[10000];
@ -351,8 +353,8 @@ void
pmap_virtual_space(vaddr_t *vstartp, vaddr_t *vendp)
{
*vstartp = VM_MIN_KERNEL_ADDRESS;
*vendp = VM_MAX_KERNEL_ADDRESS;
*vstartp = pmap_limits.virtual_start;
*vendp = pmap_limits.virtual_end;
}
vaddr_t

3
sys/uvm/pmap/pmap.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.h,v 1.4 2014/03/18 18:20:44 riastradh Exp $ */
/* $NetBSD: pmap.h,v 1.5 2015/06/11 05:27:07 matt Exp $ */
/*
* Copyright (c) 1992, 1993
@ -148,6 +148,7 @@ struct pmap_kernel {
struct pmap_limits {
paddr_t avail_start;
paddr_t avail_end;
vaddr_t virtual_start;
vaddr_t virtual_end;
};