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-rw-r--r--hw/qxl.c27
1 files changed, 20 insertions, 7 deletions
diff --git a/hw/qxl.c b/hw/qxl.c
index 44ee49583f..44a167afb7 100644
--- a/hw/qxl.c
+++ b/hw/qxl.c
@@ -1038,8 +1038,8 @@ static const MemoryRegionPortio qxl_vga_portio_list[] = {
PORTIO_END_OF_LIST(),
};
-static void qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
- qxl_async_io async)
+static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
+ qxl_async_io async)
{
static const int regions[] = {
QXL_RAM_RANGE_INDEX,
@@ -1060,8 +1060,16 @@ static void qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
trace_qxl_memslot_add_guest(d->id, slot_id, guest_start, guest_end);
- PANIC_ON(slot_id >= NUM_MEMSLOTS);
- PANIC_ON(guest_start > guest_end);
+ if (slot_id >= NUM_MEMSLOTS) {
+ qxl_guest_bug(d, "%s: slot_id >= NUM_MEMSLOTS %d >= %d", __func__,
+ slot_id, NUM_MEMSLOTS);
+ return 1;
+ }
+ if (guest_start > guest_end) {
+ qxl_guest_bug(d, "%s: guest_start > guest_end 0x%" PRIx64
+ " > 0x%" PRIx64, __func__, guest_start, guest_end);
+ return 1;
+ }
for (i = 0; i < ARRAY_SIZE(regions); i++) {
pci_region = regions[i];
@@ -1082,7 +1090,10 @@ static void qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
/* passed */
break;
}
- PANIC_ON(i == ARRAY_SIZE(regions)); /* finished loop without match */
+ if (i == ARRAY_SIZE(regions)) {
+ qxl_guest_bug(d, "%s: finished loop without match", __func__);
+ return 1;
+ }
switch (pci_region) {
case QXL_RAM_RANGE_INDEX:
@@ -1094,7 +1105,8 @@ static void qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
break;
default:
/* should not happen */
- abort();
+ qxl_guest_bug(d, "%s: pci_region = %d", __func__, pci_region);
+ return 1;
}
memslot.slot_id = slot_id;
@@ -1110,6 +1122,7 @@ static void qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
d->guest_slots[slot_id].size = memslot.virt_end - memslot.virt_start;
d->guest_slots[slot_id].delta = delta;
d->guest_slots[slot_id].active = 1;
+ return 0;
}
static void qxl_del_memslot(PCIQXLDevice *d, uint32_t slot_id)
@@ -1250,7 +1263,7 @@ static void qxl_set_mode(PCIQXLDevice *d, int modenr, int loadvm)
}
d->guest_slots[0].slot = slot;
- qxl_add_memslot(d, 0, devmem, QXL_SYNC);
+ assert(qxl_add_memslot(d, 0, devmem, QXL_SYNC) == 0);
d->guest_primary.surface = surface;
qxl_create_guest_primary(d, 0, QXL_SYNC);