| pmap.c (61074) | pmap.c (61081) |
|---|---|
| 1/* 2 * Copyright (c) 1991 Regents of the University of California. 3 * All rights reserved. 4 * Copyright (c) 1994 John S. Dyson 5 * All rights reserved. 6 * Copyright (c) 1994 David Greenman 7 * All rights reserved. 8 * --- 25 unchanged lines hidden (view full) --- 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * from: @(#)pmap.c 7.7 (Berkeley) 5/12/91 | 1/* 2 * Copyright (c) 1991 Regents of the University of California. 3 * All rights reserved. 4 * Copyright (c) 1994 John S. Dyson 5 * All rights reserved. 6 * Copyright (c) 1994 David Greenman 7 * All rights reserved. 8 * --- 25 unchanged lines hidden (view full) --- 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * from: @(#)pmap.c 7.7 (Berkeley) 5/12/91 |
| 42 * $FreeBSD: head/sys/i386/i386/pmap.c 61074 2000-05-29 19:21:01Z dfr $ | 42 * $FreeBSD: head/sys/i386/i386/pmap.c 61081 2000-05-29 22:40:54Z dillon $ |
| 43 */ 44 45/* 46 * Manages physical address maps. 47 * 48 * In addition to hardware address maps, this 49 * module is called upon to provide software-use-only 50 * maps which may or may not be stored in the same --- 2039 unchanged lines hidden (view full) --- 2090 panic("pmap_enter: pte vanished, va: 0x%x", va); 2091 } 2092 2093 /* 2094 * Enter on the PV list if part of our managed memory. Note that we 2095 * raise IPL while manipulating pv_table since pmap_enter can be 2096 * called at interrupt time. 2097 */ | 43 */ 44 45/* 46 * Manages physical address maps. 47 * 48 * In addition to hardware address maps, this 49 * module is called upon to provide software-use-only 50 * maps which may or may not be stored in the same --- 2039 unchanged lines hidden (view full) --- 2090 panic("pmap_enter: pte vanished, va: 0x%x", va); 2091 } 2092 2093 /* 2094 * Enter on the PV list if part of our managed memory. Note that we 2095 * raise IPL while manipulating pv_table since pmap_enter can be 2096 * called at interrupt time. 2097 */ |
| 2098 if (pmap_initialized && (m->flags & PG_FICTITIOUS) == 0) { | 2098 if (pmap_initialized && 2099 (m->flags & (PG_FICTITIOUS|PG_UNMANAGED)) == 0) { |
| 2099 pmap_insert_entry(pmap, va, mpte, m); 2100 pa |= PG_MANAGED; 2101 } 2102 2103 /* 2104 * Increment counters 2105 */ 2106 pmap->pm_stats.resident_count++; --- 111 unchanged lines hidden (view full) --- 2218 return 0; 2219 } 2220 2221 /* 2222 * Enter on the PV list if part of our managed memory. Note that we 2223 * raise IPL while manipulating pv_table since pmap_enter can be 2224 * called at interrupt time. 2225 */ | 2100 pmap_insert_entry(pmap, va, mpte, m); 2101 pa |= PG_MANAGED; 2102 } 2103 2104 /* 2105 * Increment counters 2106 */ 2107 pmap->pm_stats.resident_count++; --- 111 unchanged lines hidden (view full) --- 2219 return 0; 2220 } 2221 2222 /* 2223 * Enter on the PV list if part of our managed memory. Note that we 2224 * raise IPL while manipulating pv_table since pmap_enter can be 2225 * called at interrupt time. 2226 */ |
| 2226 pmap_insert_entry(pmap, va, mpte, m); | 2227 if ((m->flags & (PG_FICTITIOUS|PG_UNMANAGED)) == 0) 2228 pmap_insert_entry(pmap, va, mpte, m); |
| 2227 2228 /* 2229 * Increment counters 2230 */ 2231 pmap->pm_stats.resident_count++; 2232 2233 pa = VM_PAGE_TO_PHYS(m); 2234 2235 /* 2236 * Now validate mapping with RO protection 2237 */ | 2229 2230 /* 2231 * Increment counters 2232 */ 2233 pmap->pm_stats.resident_count++; 2234 2235 pa = VM_PAGE_TO_PHYS(m); 2236 2237 /* 2238 * Now validate mapping with RO protection 2239 */ |
| 2238 *pte = pa | PG_V | PG_U | PG_MANAGED; | 2240 if (m->flags & (PG_FICTITIOUS|PG_UNMANAGED)) 2241 *pte = pa | PG_V | PG_U; 2242 else 2243 *pte = pa | PG_V | PG_U | PG_MANAGED; |
| 2239 2240 return mpte; 2241} 2242 2243/* 2244 * Make a temporary mapping for a physical address. This is only intended 2245 * to be used for panic dumps. 2246 */ --- 1182 unchanged lines hidden --- | 2244 2245 return mpte; 2246} 2247 2248/* 2249 * Make a temporary mapping for a physical address. This is only intended 2250 * to be used for panic dumps. 2251 */ --- 1182 unchanged lines hidden --- |