Module Name: src
Committed By: reinoud
Date: Wed Aug 1 09:43:17 UTC 2018
Modified Files:
src/sys/arch/usermode/usermode: pmap.c
Log Message:
Allow the usermode pmaps to also contain the kernel itself. This is needed for
the kernel pmap.
To generate a diff of this commit:
cvs rdiff -u -r1.107 -r1.108 src/sys/arch/usermode/usermode/pmap.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/usermode/usermode/pmap.c
diff -u src/sys/arch/usermode/usermode/pmap.c:1.107 src/sys/arch/usermode/usermode/pmap.c:1.108
--- src/sys/arch/usermode/usermode/pmap.c:1.107 Thu May 17 19:06:02 2018
+++ src/sys/arch/usermode/usermode/pmap.c Wed Aug 1 09:43:17 2018
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap.c,v 1.107 2018/05/17 19:06:02 reinoud Exp $ */
+/* $NetBSD: pmap.c,v 1.108 2018/08/01 09:43:17 reinoud Exp $ */
/*-
* Copyright (c) 2011 Reinoud Zandijk <rein...@netbsd.org>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.107 2018/05/17 19:06:02 reinoud Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.108 2018/08/01 09:43:17 reinoud Exp $");
#include "opt_memsize.h"
#include "opt_kmempages.h"
@@ -285,7 +285,7 @@ pmap_bootstrap(void)
(uint64_t) pv_table_size/1024, (uintptr_t) phys_npages);
/* calculate number of pmap entries needed for a complete map */
- pm_nentries = (kmem_k_start - VM_MIN_ADDRESS) / PAGE_SIZE;
+ pm_nentries = (kmem_k_end - VM_MIN_ADDRESS) / PAGE_SIZE;
pm_entries_size = round_page(pm_nentries * sizeof(struct pv_entry *));
thunk_printf_debug("tlb va->pa lookup table is %"PRIu64" KB for "
"%d logical pages\n", pm_entries_size/1024, pm_nentries);
@@ -660,6 +660,7 @@ pmap_fault(pmap_t pmap, vaddr_t va, vm_p
/* not known! then it must be UVM's work */
if (pv == NULL) {
+thunk_printf("%s: no mapping yet for %p\n", __func__, (void *) va);
thunk_printf_debug("%s: no mapping yet\n", __func__);
*atype = VM_PROT_READ; /* assume it was a read */
return false;
@@ -1089,8 +1090,12 @@ pmap_extract(pmap_t pmap, vaddr_t va, pa
thunk_printf_debug("pmap_extract: extracting va %p\n", (void *) va);
#ifdef DIAGNOSTIC
- if ((va < VM_MIN_ADDRESS) || (va > VM_MAX_KERNEL_ADDRESS))
- panic("pmap_extract: invalid va isued\n");
+ if ((va < VM_MIN_ADDRESS) || (va > VM_MAX_KERNEL_ADDRESS)) {
+ thunk_printf_debug("pmap_extract: invalid va issued\n");
+ thunk_printf("%p not in [%p, %p]\n", (void *) va,
+ (void *) VM_MIN_ADDRESS, (void *) VM_MAX_KERNEL_ADDRESS);
+ return false;
+ }
#endif
lpn = atop(va - VM_MIN_ADDRESS); /* V->L */
pv = pmap_lookup_pv(pmap, lpn);
