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Compare Revisions

• This comparison shows the changes necessary to convert path

  → /branches/dynload/kernel/arch/amd64/src/ddi/ddi.c @ 4345

  → /branches/dynload/kernel/arch/amd64/src/ddi/ddi.c @ 4346

  ↔ Reverse comparison

• Compare Path:	Rev

  With Path:	Rev

Ignore whitespace Rev 4345 → Rev 4346

/branches/dynload/kernel/arch/amd64/src/ddi/ddi.c
57,15 → 57,15
int ddi_iospace_enable_arch(task_t *task, uintptr_t ioaddr, size_t size)
{
count_t bits;
bits = ioaddr + size;
if (bits > IO_PORTS)
return ENOENT;
if (task->arch.iomap.bits < bits) {
bitmap_t oldiomap;
uint8_t *newmap;
/*
* The I/O permission bitmap is too small and needs to be grown.
*/
77,17 → 77,17
bitmap_initialize(&oldiomap, task->arch.iomap.map,
task->arch.iomap.bits);
bitmap_initialize(&task->arch.iomap, newmap, bits);
/*
* Mark the new range inaccessible.
*/
bitmap_set_range(&task->arch.iomap, oldiomap.bits,
bits - oldiomap.bits);
/*
* In case there really existed smaller iomap,
* copy its contents and deallocate it.
*/
*/
if (oldiomap.bits) {
bitmap_copy(&task->arch.iomap, &oldiomap,
oldiomap.bits);
94,17 → 94,17
free(oldiomap.map);
}
}
/*
* Enable the range and we are done.
*/
bitmap_clear_range(&task->arch.iomap, (index_t) ioaddr, (count_t) size);
/*
* Increment I/O Permission bitmap generation counter.
*/
task->arch.iomapver++;
return 0;
}
122,7 → 122,7
descriptor_t *gdt_p;
tss_descriptor_t *tss_desc;
count_t ver;
/* First, copy the I/O Permission Bitmap. */
spinlock_lock(&TASK->lock);
ver = TASK->arch.iomapver;
140,7 → 140,7
bitmap_set_range(&iomap, ALIGN_UP(TASK->arch.iomap.bits, 8), 8);
}
spinlock_unlock(&TASK->lock);
/*
* Second, adjust TSS segment limit.
* Take the extra ending byte will all bits set into account.
151,10 → 151,10
gdtr_load(&cpugdtr);
/*
* Before we load new TSS limit, the current TSS descriptor
* type must be changed to describe inactive TSS.
*/
tss_desc = (tss_descriptor_t *) &gdt_p[TSS_DES];
* Before we load new TSS limit, the current TSS descriptor
* type must be changed to describe inactive TSS.
*/
tss_desc = (tss_descriptor_t *) &gdt_p[TSS_DES];
tss_desc->type = AR_TSS;
tr_load(gdtselector(TSS_DES));