qxl: store memory region and offset instead of pointer for guest slots
Store MemoryRegion and offset instead of a pointer for each qxl memory slot, so we can easily figure in which memory region an qxl object stored. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 1466597244-5938-2-git-send-email-kraxel@redhat.com
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@ -1244,6 +1244,7 @@ static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
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int pci_region;
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pcibus_t pci_start;
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pcibus_t pci_end;
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MemoryRegion *mr;
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intptr_t virt_start;
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QXLDevMemSlot memslot;
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int i;
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@ -1290,11 +1291,11 @@ static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
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switch (pci_region) {
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case QXL_RAM_RANGE_INDEX:
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virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vga.vram);
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mr = &d->vga.vram;
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break;
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case QXL_VRAM_RANGE_INDEX:
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case 4 /* vram 64bit */:
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virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vram_bar);
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mr = &d->vram_bar;
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break;
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default:
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/* should not happen */
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@ -1302,6 +1303,7 @@ static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
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return 1;
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}
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virt_start = (intptr_t)memory_region_get_ram_ptr(mr);
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memslot.slot_id = slot_id;
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memslot.slot_group_id = MEMSLOT_GROUP_GUEST; /* guest group */
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memslot.virt_start = virt_start + (guest_start - pci_start);
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@ -1311,7 +1313,8 @@ static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
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qxl_rom_set_dirty(d);
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qemu_spice_add_memslot(&d->ssd, &memslot, async);
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d->guest_slots[slot_id].ptr = (void*)memslot.virt_start;
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d->guest_slots[slot_id].mr = mr;
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d->guest_slots[slot_id].offset = memslot.virt_start - virt_start;
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d->guest_slots[slot_id].size = memslot.virt_end - memslot.virt_start;
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d->guest_slots[slot_id].delta = delta;
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d->guest_slots[slot_id].active = 1;
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@ -1378,6 +1381,7 @@ void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id)
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{
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uint64_t offset;
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uint32_t slot;
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void *ptr;
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switch (group_id) {
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case MEMSLOT_GROUP_HOST:
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@ -1387,7 +1391,10 @@ void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id)
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if (!qxl_get_check_slot_offset(qxl, pqxl, &slot, &offset)) {
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return NULL;
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}
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return qxl->guest_slots[slot].ptr + offset;
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ptr = memory_region_get_ram_ptr(qxl->guest_slots[slot].mr);
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ptr += qxl->guest_slots[slot].offset;
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ptr += offset;
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return ptr;
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}
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return NULL;
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}
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@ -53,7 +53,8 @@ typedef struct PCIQXLDevice {
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struct guest_slots {
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QXLMemSlot slot;
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void *ptr;
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MemoryRegion *mr;
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uint64_t offset;
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uint64_t size;
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uint64_t delta;
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uint32_t active;
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