Changeset 7cb567cd in mainline for kernel/arch/ia32/src/smp/smp.c

Timestamp:

2007-04-08T20:52:53Z (18 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

e5dbbe5

Parents:

328f324b

Message:

map kernel pages explicitly as writable (this solves compatibility issues with Intel Core 2)
make VESA framebuffer initialization more robust

File:

• kernel/arch/ia32/src/smp/smp.c (modified) (1 diff)

kernel/arch/ia32/src/smp/smp.c

@@ -83 +83 @@
         if (config.cpu_count > 1) {             
                 page_mapping_insert(AS_KERNEL, l_apic_address, (uintptr_t) l_apic, 
-                                  PAGE_NOT_CACHEABLE);
+                                  PAGE_NOT_CACHEABLE | PAGE_WRITE);
                 page_mapping_insert(AS_KERNEL, io_apic_address, (uintptr_t) io_apic,
-                                  PAGE_NOT_CACHEABLE);
+                                  PAGE_NOT_CACHEABLE | PAGE_WRITE);
                                   
                 l_apic = (uint32_t *) l_apic_address;
                 io_apic = (uint32_t *) io_apic_address;
-        }
+        }
 }