xhci: add live migration support
With all preparing pieces in place we can finally drop in the vmstate structs and the postload function. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann
parent
003e15a180
commit
37352df30f
@ -3386,9 +3386,171 @@ static int usb_xhci_initfn(struct PCIDevice *dev)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int usb_xhci_post_load(void *opaque, int version_id)
|
||||
{
|
||||
XHCIState *xhci = opaque;
|
||||
XHCISlot *slot;
|
||||
XHCIEPContext *epctx;
|
||||
dma_addr_t dcbaap, pctx;
|
||||
uint32_t slot_ctx[4];
|
||||
uint32_t ep_ctx[5];
|
||||
int slotid, epid, state, intr;
|
||||
|
||||
dcbaap = xhci_addr64(xhci->dcbaap_low, xhci->dcbaap_high);
|
||||
|
||||
for (slotid = 1; slotid <= xhci->numslots; slotid++) {
|
||||
slot = &xhci->slots[slotid-1];
|
||||
if (!slot->addressed) {
|
||||
continue;
|
||||
}
|
||||
slot->ctx =
|
||||
xhci_mask64(ldq_le_pci_dma(&xhci->pci_dev, dcbaap + 8*slotid));
|
||||
xhci_dma_read_u32s(xhci, slot->ctx, slot_ctx, sizeof(slot_ctx));
|
||||
slot->uport = xhci_lookup_uport(xhci, slot_ctx);
|
||||
assert(slot->uport && slot->uport->dev);
|
||||
|
||||
for (epid = 1; epid <= 32; epid++) {
|
||||
pctx = slot->ctx + 32 * epid;
|
||||
xhci_dma_read_u32s(xhci, pctx, ep_ctx, sizeof(ep_ctx));
|
||||
state = ep_ctx[0] & EP_STATE_MASK;
|
||||
if (state == EP_DISABLED) {
|
||||
continue;
|
||||
}
|
||||
epctx = xhci_alloc_epctx(xhci, slotid, epid);
|
||||
slot->eps[epid-1] = epctx;
|
||||
xhci_init_epctx(epctx, pctx, ep_ctx);
|
||||
epctx->state = state;
|
||||
if (state == EP_RUNNING) {
|
||||
/* kick endpoint after vmload is finished */
|
||||
qemu_mod_timer(epctx->kick_timer, qemu_get_clock_ns(vm_clock));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (intr = 0; intr < xhci->numintrs; intr++) {
|
||||
if (xhci->intr[intr].msix_used) {
|
||||
msix_vector_use(&xhci->pci_dev, intr);
|
||||
} else {
|
||||
msix_vector_unuse(&xhci->pci_dev, intr);
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const VMStateDescription vmstate_xhci_ring = {
|
||||
.name = "xhci-ring",
|
||||
.version_id = 1,
|
||||
.fields = (VMStateField[]) {
|
||||
VMSTATE_UINT64(dequeue, XHCIRing),
|
||||
VMSTATE_BOOL(ccs, XHCIRing),
|
||||
VMSTATE_END_OF_LIST()
|
||||
}
|
||||
};
|
||||
|
||||
static const VMStateDescription vmstate_xhci_port = {
|
||||
.name = "xhci-port",
|
||||
.version_id = 1,
|
||||
.fields = (VMStateField[]) {
|
||||
VMSTATE_UINT32(portsc, XHCIPort),
|
||||
VMSTATE_END_OF_LIST()
|
||||
}
|
||||
};
|
||||
|
||||
static const VMStateDescription vmstate_xhci_slot = {
|
||||
.name = "xhci-slot",
|
||||
.version_id = 1,
|
||||
.fields = (VMStateField[]) {
|
||||
VMSTATE_BOOL(enabled, XHCISlot),
|
||||
VMSTATE_BOOL(addressed, XHCISlot),
|
||||
VMSTATE_END_OF_LIST()
|
||||
}
|
||||
};
|
||||
|
||||
static const VMStateDescription vmstate_xhci_event = {
|
||||
.name = "xhci-event",
|
||||
.version_id = 1,
|
||||
.fields = (VMStateField[]) {
|
||||
VMSTATE_UINT32(type, XHCIEvent),
|
||||
VMSTATE_UINT32(ccode, XHCIEvent),
|
||||
VMSTATE_UINT64(ptr, XHCIEvent),
|
||||
VMSTATE_UINT32(length, XHCIEvent),
|
||||
VMSTATE_UINT32(flags, XHCIEvent),
|
||||
VMSTATE_UINT8(slotid, XHCIEvent),
|
||||
VMSTATE_UINT8(epid, XHCIEvent),
|
||||
}
|
||||
};
|
||||
|
||||
static bool xhci_er_full(void *opaque, int version_id)
|
||||
{
|
||||
struct XHCIInterrupter *intr = opaque;
|
||||
return intr->er_full;
|
||||
}
|
||||
|
||||
static const VMStateDescription vmstate_xhci_intr = {
|
||||
.name = "xhci-intr",
|
||||
.version_id = 1,
|
||||
.fields = (VMStateField[]) {
|
||||
/* registers */
|
||||
VMSTATE_UINT32(iman, XHCIInterrupter),
|
||||
VMSTATE_UINT32(imod, XHCIInterrupter),
|
||||
VMSTATE_UINT32(erstsz, XHCIInterrupter),
|
||||
VMSTATE_UINT32(erstba_low, XHCIInterrupter),
|
||||
VMSTATE_UINT32(erstba_high, XHCIInterrupter),
|
||||
VMSTATE_UINT32(erdp_low, XHCIInterrupter),
|
||||
VMSTATE_UINT32(erdp_high, XHCIInterrupter),
|
||||
|
||||
/* state */
|
||||
VMSTATE_BOOL(msix_used, XHCIInterrupter),
|
||||
VMSTATE_BOOL(er_pcs, XHCIInterrupter),
|
||||
VMSTATE_UINT64(er_start, XHCIInterrupter),
|
||||
VMSTATE_UINT32(er_size, XHCIInterrupter),
|
||||
VMSTATE_UINT32(er_ep_idx, XHCIInterrupter),
|
||||
|
||||
/* event queue (used if ring is full) */
|
||||
VMSTATE_BOOL(er_full, XHCIInterrupter),
|
||||
VMSTATE_UINT32_TEST(ev_buffer_put, XHCIInterrupter, xhci_er_full),
|
||||
VMSTATE_UINT32_TEST(ev_buffer_get, XHCIInterrupter, xhci_er_full),
|
||||
VMSTATE_STRUCT_ARRAY_TEST(ev_buffer, XHCIInterrupter, EV_QUEUE,
|
||||
xhci_er_full, 1,
|
||||
vmstate_xhci_event, XHCIEvent),
|
||||
|
||||
VMSTATE_END_OF_LIST()
|
||||
}
|
||||
};
|
||||
|
||||
static const VMStateDescription vmstate_xhci = {
|
||||
.name = "xhci",
|
||||
.unmigratable = 1,
|
||||
.version_id = 1,
|
||||
.post_load = usb_xhci_post_load,
|
||||
.fields = (VMStateField[]) {
|
||||
VMSTATE_PCIE_DEVICE(pci_dev, XHCIState),
|
||||
VMSTATE_MSIX(pci_dev, XHCIState),
|
||||
|
||||
VMSTATE_STRUCT_VARRAY_UINT32(ports, XHCIState, numports, 1,
|
||||
vmstate_xhci_port, XHCIPort),
|
||||
VMSTATE_STRUCT_VARRAY_UINT32(slots, XHCIState, numslots, 1,
|
||||
vmstate_xhci_slot, XHCISlot),
|
||||
VMSTATE_STRUCT_VARRAY_UINT32(intr, XHCIState, numintrs, 1,
|
||||
vmstate_xhci_intr, XHCIInterrupter),
|
||||
|
||||
/* Operational Registers */
|
||||
VMSTATE_UINT32(usbcmd, XHCIState),
|
||||
VMSTATE_UINT32(usbsts, XHCIState),
|
||||
VMSTATE_UINT32(dnctrl, XHCIState),
|
||||
VMSTATE_UINT32(crcr_low, XHCIState),
|
||||
VMSTATE_UINT32(crcr_high, XHCIState),
|
||||
VMSTATE_UINT32(dcbaap_low, XHCIState),
|
||||
VMSTATE_UINT32(dcbaap_high, XHCIState),
|
||||
VMSTATE_UINT32(config, XHCIState),
|
||||
|
||||
/* Runtime Registers & state */
|
||||
VMSTATE_INT64(mfindex_start, XHCIState),
|
||||
VMSTATE_TIMER(mfwrap_timer, XHCIState),
|
||||
VMSTATE_STRUCT(cmd_ring, XHCIState, 1, vmstate_xhci_ring, XHCIRing),
|
||||
|
||||
VMSTATE_END_OF_LIST()
|
||||
}
|
||||
};
|
||||
|
||||
static Property xhci_properties[] = {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user