Changeset a7a1063 in mainline for arch/ia32/src/mm/page.c

Timestamp:

2005-06-07T00:41:39Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

d896525

Parents:

b0bf501

Message:

SMP recovery patch #2 (SMP is no longer broken !!!).
Fix missing KA2PA() operation in ap.S which was causing page faults during AP early initialization.
Fix bug in map_page_to_frame(): 'root' was interpretted as kernel address while read_dba() returns physical address.
Make references to page directory and page tables use kernel addresses instead of physical addresses.

Massive frame allocation code cleanup.
Basically revert to what we had had before implementation of userspace.

Usual cosmetics.

File:

• arch/ia32/src/mm/page.c (modified) (3 diffs)

arch/ia32/src/mm/page.c

@@ -65 +65 @@
                  */
                 for (i = 1; i < frames; i++) {
-                        map_page_to_frame(i * PAGE_SIZE, i * PAGE_SIZE, PAGE_CACHEABLE, dba);
-                        map_page_to_frame(PA2KA(i * PAGE_SIZE), i * PAGE_SIZE, PAGE_CACHEABLE, dba);
+                        map_page_to_frame(i * PAGE_SIZE, i * PAGE_SIZE, PAGE_CACHEABLE, KA2PA(dba));
+                        map_page_to_frame(PA2KA(i * PAGE_SIZE), i * PAGE_SIZE, PAGE_CACHEABLE, KA2PA(dba));
                 }
 
@@ -113 +113 @@
         pte = (page >> 12) & 0x3ff;     /* page table entry */
         
-        pd = (struct page_specifier *) dba;
+        pd = (struct page_specifier *) PA2KA(dba);
         
         if (!pd[pde].present) {
@@ -127 +127 @@
         }
         
-        pt = (struct page_specifier *) (pd[pde].frame_address << 12);
+        pt = (struct page_specifier *) PA2KA((pd[pde].frame_address << 12));
 
         pt[pte].frame_address = frame >> 12;