Changeset 59fb782 in mainline for kernel/arch/ia32/src

Timestamp:

2013-03-24T19:38:18Z (12 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

d965dc3

Parents:

119b46e

Message:

Unify the use of virtual addresses and virtual page addresses in mm code.

• as_page_fault() accepts faulting address (if available) and propagates the faulting page further along
• backends' page_fault() handlers assume page fault address
• page_mapping_create/destroy/find() accept addresses, but pass only page and frame addresses along
• as_area_create(), as_area_resize() now test whether the address is page-aligned
• renames of various variables to better fit their purpose (address vs. page)
• no need to align the addresses in mips32 TLB exception handlers now

File:

• kernel/arch/ia32/src/mm/page.c (modified) (2 diffs)

kernel/arch/ia32/src/mm/page.c

@@ -84 +84 @@
 void page_fault(unsigned int n __attribute__((unused)), istate_t *istate)
 {
-        uintptr_t page;
+        uintptr_t badvaddr;
         pf_access_t access;
         
-        page = read_cr2();
+        badvaddr = read_cr2();
                 
         if (istate->error_word & PFERR_CODE_RSVD)
@@ -97 +97 @@
                 access = PF_ACCESS_READ;
         
-        if (as_page_fault(page, access, istate) == AS_PF_FAULT) {
-                fault_if_from_uspace(istate, "Page fault: %#x.", page);
-                panic_memtrap(istate, access, page, NULL);
-        }
+        (void) as_page_fault(badvaddr, access, istate);
 }