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hw/qxl.c: qxl_phys2virt: replace panics with guest_bug 

Signed-off-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Alon Levy 2012-04-25 12:13:17 +03:00 committed by Gerd Hoffmann
parent 4efee029cb
commit 4b635c59b0
1 changed files with 19 additions and 6 deletions
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25
hw/qxl.c
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@ -1097,15 +1097,28 @@ void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id)
case MEMSLOT_GROUP_HOST:
return (void *)(intptr_t)offset;
case MEMSLOT_GROUP_GUEST:
PANIC_ON(slot >= NUM_MEMSLOTS);
PANIC_ON(!qxl->guest_slots[slot].active);
PANIC_ON(offset < qxl->guest_slots[slot].delta);
if (slot >= NUM_MEMSLOTS) {
qxl_guest_bug(qxl, "slot too large %d >= %d", slot, NUM_MEMSLOTS);
return NULL;
}
if (!qxl->guest_slots[slot].active) {
qxl_guest_bug(qxl, "inactive slot %d\n", slot);
return NULL;
}
if (offset < qxl->guest_slots[slot].delta) {
qxl_guest_bug(qxl, "slot %d offset %"PRIu64" < delta %"PRIu64"\n",
slot, offset, qxl->guest_slots[slot].delta);
return NULL;
}
offset -= qxl->guest_slots[slot].delta;
PANIC_ON(offset > qxl->guest_slots[slot].size)
if (offset > qxl->guest_slots[slot].size) {
qxl_guest_bug(qxl, "slot %d offset %"PRIu64" > size %"PRIu64"\n",
slot, offset, qxl->guest_slots[slot].size);
return NULL;
}
return qxl->guest_slots[slot].ptr + offset;
default:
PANIC_ON(1);
}
return NULL;
}
static void qxl_create_guest_primary_complete(PCIQXLDevice *qxl)