void
update_owner__rx_handler(struct intermon_binding *b, intermon_caprep_t caprep, genvaddr_t st)
{
errval_t err;
struct intermon_state *inter_st = (struct intermon_state*)b->st;
coreid_t from = inter_st->core_id;
struct capref capref;
struct capability cap;
caprep_to_capability(&caprep, &cap);
err = slot_alloc(&capref);
if (err_is_fail(err)) {
USER_PANIC_ERR(err, "failed to allocate slot for owner update");
}
err = monitor_copy_if_exists(&cap, capref);
if (err_is_ok(err)) {
err = monitor_set_cap_owner(cap_root, get_cap_addr(capref),
get_cap_valid_bits(capref), from);
}
if (err_no(err) == SYS_ERR_CAP_NOT_FOUND) {
err = SYS_ERR_OK;
}
if (err_is_fail(err)) {
USER_PANIC_ERR(err, "failed to update cap ownership");
}
cap_destroy(capref);
err = owner_updated(from, st);
if (err_is_fail(err)) {
USER_PANIC_ERR(err, "failed to send ownership update response");
}
}
void
retrieve_request__rx(struct intermon_binding *b,
intermon_caprep_t caprep,
genvaddr_t st)
{
errval_t err, err2;
struct intermon_state *inter_st = (struct intermon_state*)b->st;
struct retrieve_response_st *rst;
err = calloce(1, sizeof(*rst), &rst);
PANIC_IF_ERR(err, "allocating retrieve respones state");
rst->st = st;
rst->from = inter_st->core_id;
struct capability rawcap;
caprep_to_capability(&caprep, &rawcap);
struct capref cap;
err = slot_alloc(&cap);
GOTO_IF_ERR(err, respond_err);
err = monitor_copy_if_exists(&rawcap, cap);
GOTO_IF_ERR(err, free_slot);
distcap_state_t state;
err = dom_cnode_get_state(get_cap_domref(cap), &state);
GOTO_IF_ERR(err, delete_cap);
if (distcap_state_is_busy(state)) {
err = MON_ERR_REMOTE_CAP_RETRY;
goto delete_cap;
}
if (distcap_state_is_foreign(state)) {
err = MON_ERR_CAP_FOREIGN;
goto delete_cap;
}
uint8_t relations, remote_relations;
err = monitor_cap_has_relations(cap, 0xFF, &relations);
GOTO_IF_ERR(err, delete_cap);
err = monitor_remote_relations(cap, 0, 0, &remote_relations);
GOTO_IF_ERR(err, delete_cap);
rst->relations = relations | remote_relations | RRELS_COPY_BIT;
err = monitor_set_cap_owner(cap_root, get_cap_addr(cap),
get_cap_valid_bits(cap),
rst->from);
delete_cap:
err2 = cap_delete(cap);
DEBUG_IF_ERR(err2, "while deleting temp cap for retrieve");
free_slot:
err2 = slot_free(cap);
DEBUG_IF_ERR(err2, "freeing temp cap slot for retrieve");
respond_err:
retrieve_result__enq(err, rst);
}
int
ifcvf_init_hw(struct ifcvf_hw *hw, PCI_DEV *dev)
{
int ret;
u8 pos;
struct ifcvf_pci_cap cap;
ret = PCI_READ_CONFIG_BYTE(dev, &pos, PCI_CAPABILITY_LIST);
if (ret < 0) {
DEBUGOUT("failed to read pci capability list\n");
return -1;
}
while (pos) {
ret = PCI_READ_CONFIG_RANGE(dev, (u32 *)&cap,
sizeof(cap), pos);
if (ret < 0) {
DEBUGOUT("failed to read cap at pos: %x", pos);
break;
}
if (cap.cap_vndr != PCI_CAP_ID_VNDR)
goto next;
DEBUGOUT("cfg type: %u, bar: %u, offset: %u, "
"len: %u\n", cap.cfg_type, cap.bar,
cap.offset, cap.length);
switch (cap.cfg_type) {
case IFCVF_PCI_CAP_COMMON_CFG:
hw->common_cfg = get_cap_addr(hw, &cap);
break;
case IFCVF_PCI_CAP_NOTIFY_CFG:
PCI_READ_CONFIG_DWORD(dev, &hw->notify_off_multiplier,
pos + sizeof(cap));
hw->notify_base = get_cap_addr(hw, &cap);
hw->notify_region = cap.bar;
break;
case IFCVF_PCI_CAP_ISR_CFG:
hw->isr = get_cap_addr(hw, &cap);
break;
case IFCVF_PCI_CAP_DEVICE_CFG:
hw->dev_cfg = get_cap_addr(hw, &cap);
break;
}
next:
pos = cap.cap_next;
}
hw->lm_cfg = hw->mem_resource[4].addr;
if (hw->common_cfg == NULL || hw->notify_base == NULL ||
hw->isr == NULL || hw->dev_cfg == NULL) {
DEBUGOUT("capability incomplete\n");
return -1;
}
DEBUGOUT("capability mapping:\ncommon cfg: %p\n"
"notify base: %p\nisr cfg: %p\ndevice cfg: %p\n"
"multiplier: %u\n",
hw->common_cfg, hw->dev_cfg,
hw->isr, hw->notify_base,
hw->notify_off_multiplier);
return 0;
}