Changeset 0b749a3 in mainline for kernel/arch/amd64/src/ddi/ddi.c

Timestamp:

2010-11-22T15:39:53Z (14 years ago)

Author:

Vojtech Horky <vojtechhorky@…>

Branches:

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

Children:

0eddb76, aae339e9

Parents:

9a1d8ab (diff), 8cd1aa5e (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge development/ changes

File:

• kernel/arch/amd64/src/ddi/ddi.c (modified) (2 diffs)

kernel/arch/amd64/src/ddi/ddi.c

@@ -126 +126 @@
                 bitmap_initialize(&iomap, CPU->arch.tss->iomap,
                     TSS_IOMAP_SIZE * 8);
-                bitmap_copy(&iomap, &TASK->arch.iomap, TASK->arch.iomap.bits);
+                bitmap_copy(&iomap, &TASK->arch.iomap, bits);
                 
+                /*
+                 * Set the trailing bits in the last byte of the map to disable
+                 * I/O access.
+                 */
+                bitmap_set_range(&iomap, bits, ALIGN_UP(bits, 8) - bits);
                 /*
                  * It is safe to set the trailing eight bits because of the
                  * extra convenience byte in TSS_IOMAP_SIZE.
                  */
-                bitmap_set_range(&iomap, ALIGN_UP(TASK->arch.iomap.bits, 8), 8);
+                bitmap_set_range(&iomap, ALIGN_UP(bits, 8), 8);
         }
         irq_spinlock_unlock(&TASK->lock, false);
@@ -153 +158 @@
         tss_descriptor_t *tss_desc = (tss_descriptor_t *) &gdt_p[TSS_DES];
         tss_desc->type = AR_TSS;
-        tr_load(gdtselector(TSS_DES));
+        tr_load(GDT_SELECTOR(TSS_DES));
         
         /*