/* reset bridge specific configuration registers */
void pci_bridge_reset(DeviceState *qdev)
{
PCIDevice *dev = PCI_DEVICE(qdev);
uint8_t *conf = dev->config;
conf[PCI_PRIMARY_BUS] = 0;
conf[PCI_SECONDARY_BUS] = 0;
conf[PCI_SUBORDINATE_BUS] = 0;
conf[PCI_SEC_LATENCY_TIMER] = 0;
/*
* the default values for base/limit registers aren't specified
* in the PCI-to-PCI-bridge spec. So we don't thouch them here.
* Each implementation can override it.
* typical implementation does
* zero base/limit registers or
* disable forwarding: pci_bridge_disable_base_limit()
* If disable forwarding is wanted, call pci_bridge_disable_base_limit()
* after this function.
*/
pci_byte_test_and_clear_mask(conf + PCI_IO_BASE,
PCI_IO_RANGE_MASK & 0xff);
pci_byte_test_and_clear_mask(conf + PCI_IO_LIMIT,
PCI_IO_RANGE_MASK & 0xff);
pci_word_test_and_clear_mask(conf + PCI_MEMORY_BASE,
PCI_MEMORY_RANGE_MASK & 0xffff);
pci_word_test_and_clear_mask(conf + PCI_MEMORY_LIMIT,
PCI_MEMORY_RANGE_MASK & 0xffff);
pci_word_test_and_clear_mask(conf + PCI_PREF_MEMORY_BASE,
PCI_PREF_RANGE_MASK & 0xffff);
pci_word_test_and_clear_mask(conf + PCI_PREF_MEMORY_LIMIT,
PCI_PREF_RANGE_MASK & 0xffff);
pci_set_long(conf + PCI_PREF_BASE_UPPER32, 0);
pci_set_long(conf + PCI_PREF_LIMIT_UPPER32, 0);
pci_set_word(conf + PCI_BRIDGE_CONTROL, 0);
}
static bool pcie_aer_inject_uncor_error(PCIEAERInject *inj, bool is_fatal)
{
PCIDevice *dev = inj->dev;
uint16_t cmd;
if (is_fatal) {
inj->devsta |= PCI_EXP_DEVSTA_FED;
} else {
inj->devsta |= PCI_EXP_DEVSTA_NFED;
}
if (inj->unsupported_request) {
inj->devsta |= PCI_EXP_DEVSTA_URD;
}
pci_set_long(dev->config + dev->exp.exp_cap + PCI_EXP_DEVSTA, inj->devsta);
if (inj->aer_cap) {
uint32_t mask = pci_get_long(inj->aer_cap + PCI_ERR_UNCOR_MASK);
if (mask & inj->error_status) {
pci_long_test_and_set_mask(inj->aer_cap + PCI_ERR_UNCOR_STATUS,
inj->error_status);
return false;
}
inj->log_overflow = !!pcie_aer_record_error(dev, inj->err);
pci_long_test_and_set_mask(inj->aer_cap + PCI_ERR_UNCOR_STATUS,
inj->error_status);
}
cmd = pci_get_word(dev->config + PCI_COMMAND);
if (inj->unsupported_request &&
!(inj->devctl & PCI_EXP_DEVCTL_URRE) && !(cmd & PCI_COMMAND_SERR)) {
return false;
}
if (is_fatal) {
if (!((cmd & PCI_COMMAND_SERR) ||
(inj->devctl & PCI_EXP_DEVCTL_FERE))) {
return false;
}
inj->msg.severity = PCI_ERR_ROOT_CMD_FATAL_EN;
} else {
if (!((cmd & PCI_COMMAND_SERR) ||
(inj->devctl & PCI_EXP_DEVCTL_NFERE))) {
return false;
}
inj->msg.severity = PCI_ERR_ROOT_CMD_NONFATAL_EN;
}
return true;
}
/* via ide func */
static void vt82c686b_ide_realize(PCIDevice *dev, Error **errp)
{
PCIIDEState *d = PCI_IDE(dev);
uint8_t *pci_conf = dev->config;
pci_config_set_prog_interface(pci_conf, 0x8a); /* legacy ATA mode */
pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0);
qemu_register_reset(via_reset, d);
bmdma_setup_bar(d);
pci_register_bar(dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar);
vmstate_register(DEVICE(dev), 0, &vmstate_ide_pci, d);
vt82c686b_init_ports(d);
}
/* via ide func */
static int vt82c686b_ide_initfn(PCIDevice *dev)
{
PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
uint8_t *pci_conf = d->dev.config;
pci_config_set_prog_interface(pci_conf, 0x8a); /* legacy ATA mode */
pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0);
qemu_register_reset(via_reset, d);
bmdma_setup_bar(d);
pci_register_bar(&d->dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar);
vmstate_register(&dev->qdev, 0, &vmstate_ide_pci, d);
vt82c686b_init_ports(d);
return 0;
}
static void msix_mmio_write(void *opaque, target_phys_addr_t addr,
uint64_t val, unsigned size)
{
PCIDevice *dev = opaque;
unsigned int offset = addr & (MSIX_PAGE_SIZE - 1) & ~0x3;
int vector = offset / PCI_MSIX_ENTRY_SIZE;
int was_masked = msix_is_masked(dev, vector);
pci_set_long(dev->msix_table_page + offset, val);
if (kvm_enabled() && kvm_irqchip_in_kernel()) {
kvm_msix_update(dev, vector, was_masked, msix_is_masked(dev, vector));
}
if (was_masked != msix_is_masked(dev, vector) && dev->msix_mask_notifier) {
int r = dev->msix_mask_notifier(dev, vector,
msix_is_masked(dev, vector));
assert(r >= 0);
}
msix_handle_mask_update(dev, vector);
}
static void pci_ich9_ahci_realize(PCIDevice *dev, Error **errp)
{
struct AHCIPCIState *d;
int sata_cap_offset;
uint8_t *sata_cap;
d = ICH_AHCI(dev);
ahci_realize(&d->ahci, DEVICE(dev), pci_get_address_space(dev), 6);
pci_config_set_prog_interface(dev->config, AHCI_PROGMODE_MAJOR_REV_1);
dev->config[PCI_CACHE_LINE_SIZE] = 0x08; /* Cache line size */
dev->config[PCI_LATENCY_TIMER] = 0x00; /* Latency timer */
pci_config_set_interrupt_pin(dev->config, 1);
/* XXX Software should program this register */
dev->config[0x90] = 1 << 6; /* Address Map Register - AHCI mode */
d->ahci.irq = pci_allocate_irq(dev);
pci_register_bar(dev, ICH9_IDP_BAR, PCI_BASE_ADDRESS_SPACE_IO,
&d->ahci.idp);
pci_register_bar(dev, ICH9_MEM_BAR, PCI_BASE_ADDRESS_SPACE_MEMORY,
&d->ahci.mem);
sata_cap_offset = pci_add_capability2(dev, PCI_CAP_ID_SATA,
ICH9_SATA_CAP_OFFSET, SATA_CAP_SIZE,
errp);
if (sata_cap_offset < 0) {
return;
}
sata_cap = dev->config + sata_cap_offset;
pci_set_word(sata_cap + SATA_CAP_REV, 0x10);
pci_set_long(sata_cap + SATA_CAP_BAR,
(ICH9_IDP_BAR + 0x4) | (ICH9_IDP_INDEX_LOG2 << 4));
d->ahci.idp_offset = ICH9_IDP_INDEX;
/* Although the AHCI 1.3 specification states that the first capability
* should be PMCAP, the Intel ICH9 data sheet specifies that the ICH9
* AHCI device puts the MSI capability first, pointing to 0x80. */
msi_init(dev, ICH9_MSI_CAP_OFFSET, 1, true, false);
}
static void via_ide_realize(PCIDevice *dev, Error **errp)
{
PCIIDEState *d = PCI_IDE(dev);
uint8_t *pci_conf = dev->config;
int i;
pci_config_set_prog_interface(pci_conf, 0x8f); /* native PCI ATA mode */
pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0);
dev->wmask[PCI_INTERRUPT_LINE] = 0xf;
qemu_register_reset(via_ide_reset, d);
memory_region_init_io(&d->data_bar[0], OBJECT(d), &pci_ide_data_le_ops,
&d->bus[0], "via-ide0-data", 8);
pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &d->data_bar[0]);
memory_region_init_io(&d->cmd_bar[0], OBJECT(d), &pci_ide_cmd_le_ops,
&d->bus[0], "via-ide0-cmd", 4);
pci_register_bar(dev, 1, PCI_BASE_ADDRESS_SPACE_IO, &d->cmd_bar[0]);
memory_region_init_io(&d->data_bar[1], OBJECT(d), &pci_ide_data_le_ops,
&d->bus[1], "via-ide1-data", 8);
pci_register_bar(dev, 2, PCI_BASE_ADDRESS_SPACE_IO, &d->data_bar[1]);
memory_region_init_io(&d->cmd_bar[1], OBJECT(d), &pci_ide_cmd_le_ops,
&d->bus[1], "via-ide1-cmd", 4);
pci_register_bar(dev, 3, PCI_BASE_ADDRESS_SPACE_IO, &d->cmd_bar[1]);
bmdma_setup_bar(d);
pci_register_bar(dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar);
vmstate_register(DEVICE(dev), 0, &vmstate_ide_pci, d);
for (i = 0; i < 2; i++) {
ide_bus_new(&d->bus[i], sizeof(d->bus[i]), DEVICE(d), i, 2);
ide_init2(&d->bus[i], qemu_allocate_irq(via_ide_set_irq, d, i));
bmdma_init(&d->bus[i], &d->bmdma[i], d);
d->bmdma[i].bus = &d->bus[i];
ide_register_restart_cb(&d->bus[i]);
}
}
static int pci_ich9_ahci_init(PCIDevice *dev)
{
struct AHCIPCIState *d;
int sata_cap_offset;
uint8_t *sata_cap;
d = DO_UPCAST(struct AHCIPCIState, card, dev);
ahci_init(&d->ahci, &dev->qdev, 6);
pci_config_set_prog_interface(d->card.config, AHCI_PROGMODE_MAJOR_REV_1);
d->card.config[PCI_CACHE_LINE_SIZE] = 0x08; /* Cache line size */
d->card.config[PCI_LATENCY_TIMER] = 0x00; /* Latency timer */
pci_config_set_interrupt_pin(d->card.config, 1);
/* XXX Software should program this register */
d->card.config[0x90] = 1 << 6; /* Address Map Register - AHCI mode */
qemu_register_reset(ahci_reset, d);
msi_init(dev, 0x50, 1, true, false);
d->ahci.irq = d->card.irq[0];
pci_register_bar(&d->card, ICH9_IDP_BAR, PCI_BASE_ADDRESS_SPACE_IO,
&d->ahci.idp);
pci_register_bar(&d->card, ICH9_MEM_BAR, PCI_BASE_ADDRESS_SPACE_MEMORY,
&d->ahci.mem);
sata_cap_offset = pci_add_capability(&d->card, PCI_CAP_ID_SATA,
ICH9_SATA_CAP_OFFSET, SATA_CAP_SIZE);
if (sata_cap_offset < 0) {
return sata_cap_offset;
}
sata_cap = d->card.config + sata_cap_offset;
pci_set_word(sata_cap + SATA_CAP_REV, 0x10);
pci_set_long(sata_cap + SATA_CAP_BAR,
(ICH9_IDP_BAR + 0x4) | (ICH9_IDP_INDEX_LOG2 << 4));
d->ahci.idp_offset = ICH9_IDP_INDEX;
return 0;
}
static void pcie_aer_update_log(PCIDevice *dev, const PCIEAERErr *err)
{
uint8_t *aer_cap = dev->config + dev->exp.aer_cap;
uint8_t first_bit = ctz32(err->status);
uint32_t errcap = pci_get_long(aer_cap + PCI_ERR_CAP);
int i;
assert(err->status);
assert(!(err->status & (err->status - 1)));
errcap &= ~(PCI_ERR_CAP_FEP_MASK | PCI_ERR_CAP_TLP);
errcap |= PCI_ERR_CAP_FEP(first_bit);
if (err->flags & PCIE_AER_ERR_HEADER_VALID) {
for (i = 0; i < ARRAY_SIZE(err->header); ++i) {
/* 7.10.8 Header Log Register */
uint8_t *header_log =
aer_cap + PCI_ERR_HEADER_LOG + i * sizeof err->header[0];
stl_be_p(header_log, err->header[i]);
}
} else {
assert(!(err->flags & PCIE_AER_ERR_TLP_PREFIX_PRESENT));
memset(aer_cap + PCI_ERR_HEADER_LOG, 0, PCI_ERR_HEADER_LOG_SIZE);
}
if ((err->flags & PCIE_AER_ERR_TLP_PREFIX_PRESENT) &&
(pci_get_long(dev->config + dev->exp.exp_cap + PCI_EXP_DEVCAP2) &
PCI_EXP_DEVCAP2_EETLPP)) {
for (i = 0; i < ARRAY_SIZE(err->prefix); ++i) {
/* 7.10.12 tlp prefix log register */
uint8_t *prefix_log =
aer_cap + PCI_ERR_TLP_PREFIX_LOG + i * sizeof err->prefix[0];
stl_be_p(prefix_log, err->prefix[i]);
}
errcap |= PCI_ERR_CAP_TLP;
} else {
memset(aer_cap + PCI_ERR_TLP_PREFIX_LOG, 0,
PCI_ERR_TLP_PREFIX_LOG_SIZE);
}
pci_set_long(aer_cap + PCI_ERR_CAP, errcap);
}
/* via ide func */
static int vt82c686b_ide_initfn(PCIDevice *dev)
{
PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);;
uint8_t *pci_conf = d->dev.config;
pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_VIA);
pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_VIA_IDE);
pci_config_set_class(pci_conf, PCI_CLASS_STORAGE_IDE);
pci_config_set_prog_interface(pci_conf, 0x8a); /* legacy ATA mode */
pci_config_set_revision(pci_conf,0x06); /* Revision 0.6 */
pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0);
qemu_register_reset(via_reset, d);
pci_register_bar(&d->dev, 4, 0x10,
PCI_BASE_ADDRESS_SPACE_IO, bmdma_map);
vmstate_register(&dev->qdev, 0, &vmstate_ide_pci, d);
vt82c686b_init_ports(d);
return 0;
}
static void via_reset(void *opaque)
{
PCIIDEState *d = opaque;
PCIDevice *pd = PCI_DEVICE(d);
uint8_t *pci_conf = pd->config;
int i;
for (i = 0; i < 2; i++) {
ide_bus_reset(&d->bus[i]);
}
pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_WAIT);
pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_FAST_BACK |
PCI_STATUS_DEVSEL_MEDIUM);
pci_set_long(pci_conf + PCI_BASE_ADDRESS_0, 0x000001f0);
pci_set_long(pci_conf + PCI_BASE_ADDRESS_1, 0x000003f4);
pci_set_long(pci_conf + PCI_BASE_ADDRESS_2, 0x00000170);
pci_set_long(pci_conf + PCI_BASE_ADDRESS_3, 0x00000374);
pci_set_long(pci_conf + PCI_BASE_ADDRESS_4, 0x0000cc01); /* BMIBA: 20-23h */
pci_set_long(pci_conf + PCI_INTERRUPT_LINE, 0x0000010e);
/* IDE chip enable, IDE configuration 1/2, IDE FIFO Configuration*/
pci_set_long(pci_conf + 0x40, 0x0a090600);
/* IDE misc configuration 1/2/3 */
pci_set_long(pci_conf + 0x44, 0x00c00068);
/* IDE Timing control */
pci_set_long(pci_conf + 0x48, 0xa8a8a8a8);
/* IDE Address Setup Time */
pci_set_long(pci_conf + 0x4c, 0x000000ff);
/* UltraDMA Extended Timing Control*/
pci_set_long(pci_conf + 0x50, 0x07070707);
/* UltraDMA FIFO Control */
pci_set_long(pci_conf + 0x54, 0x00000004);
/* IDE primary sector size */
pci_set_long(pci_conf + 0x60, 0x00000200);
/* IDE secondary sector size */
pci_set_long(pci_conf + 0x68, 0x00000200);
/* PCI PM Block */
pci_set_long(pci_conf + 0xc0, 0x00020001);
}
/* ARI */
void pcie_ari_init(PCIDevice *dev, uint16_t offset, uint16_t nextfn)
{
pcie_add_capability(dev, PCI_EXT_CAP_ID_ARI, PCI_ARI_VER,
offset, PCI_ARI_SIZEOF);
pci_set_long(dev->config + offset + PCI_ARI_CAP, (nextfn & 0xff) << 8);
}
int pcie_aer_init(PCIDevice *dev, uint16_t offset)
{
PCIExpressDevice *exp;
pcie_add_capability(dev, PCI_EXT_CAP_ID_ERR, PCI_ERR_VER,
offset, PCI_ERR_SIZEOF);
exp = &dev->exp;
exp->aer_cap = offset;
/* log_max is property */
if (dev->exp.aer_log.log_max == PCIE_AER_LOG_MAX_UNSET) {
dev->exp.aer_log.log_max = PCIE_AER_LOG_MAX_DEFAULT;
}
/* clip down the value to avoid unreasobale memory usage */
if (dev->exp.aer_log.log_max > PCIE_AER_LOG_MAX_LIMIT) {
return -EINVAL;
}
dev->exp.aer_log.log = g_malloc0(sizeof dev->exp.aer_log.log[0] *
dev->exp.aer_log.log_max);
pci_set_long(dev->w1cmask + offset + PCI_ERR_UNCOR_STATUS,
PCI_ERR_UNC_SUPPORTED);
pci_set_long(dev->config + offset + PCI_ERR_UNCOR_SEVER,
PCI_ERR_UNC_SEVERITY_DEFAULT);
pci_set_long(dev->wmask + offset + PCI_ERR_UNCOR_SEVER,
PCI_ERR_UNC_SUPPORTED);
pci_long_test_and_set_mask(dev->w1cmask + offset + PCI_ERR_COR_STATUS,
PCI_ERR_COR_SUPPORTED);
pci_set_long(dev->config + offset + PCI_ERR_COR_MASK,
PCI_ERR_COR_MASK_DEFAULT);
pci_set_long(dev->wmask + offset + PCI_ERR_COR_MASK,
PCI_ERR_COR_SUPPORTED);
/* capabilities and control. multiple header logging is supported */
if (dev->exp.aer_log.log_max > 0) {
pci_set_long(dev->config + offset + PCI_ERR_CAP,
PCI_ERR_CAP_ECRC_GENC | PCI_ERR_CAP_ECRC_CHKC |
PCI_ERR_CAP_MHRC);
pci_set_long(dev->wmask + offset + PCI_ERR_CAP,
PCI_ERR_CAP_ECRC_GENE | PCI_ERR_CAP_ECRC_CHKE |
PCI_ERR_CAP_MHRE);
} else {
pci_set_long(dev->config + offset + PCI_ERR_CAP,
PCI_ERR_CAP_ECRC_GENC | PCI_ERR_CAP_ECRC_CHKC);
pci_set_long(dev->wmask + offset + PCI_ERR_CAP,
PCI_ERR_CAP_ECRC_GENE | PCI_ERR_CAP_ECRC_CHKE);
}
switch (pcie_cap_get_type(dev)) {
case PCI_EXP_TYPE_ROOT_PORT:
/* this case will be set by pcie_aer_root_init() */
/* fallthrough */
case PCI_EXP_TYPE_DOWNSTREAM:
case PCI_EXP_TYPE_UPSTREAM:
pci_word_test_and_set_mask(dev->wmask + PCI_BRIDGE_CONTROL,
PCI_BRIDGE_CTL_SERR);
pci_long_test_and_set_mask(dev->w1cmask + PCI_STATUS,
PCI_SEC_STATUS_RCV_SYSTEM_ERROR);
break;
default:
/* nothing */
break;
}
return 0;
}
/*
* 6.2.6 Error Message Control
* Figure 6-3
* root port part
*/
static void pcie_aer_msg_root_port(PCIDevice *dev, const PCIEAERMsg *msg)
{
uint16_t cmd;
uint8_t *aer_cap;
uint32_t root_cmd;
uint32_t root_status, prev_status;
cmd = pci_get_word(dev->config + PCI_COMMAND);
aer_cap = dev->config + dev->exp.aer_cap;
root_cmd = pci_get_long(aer_cap + PCI_ERR_ROOT_COMMAND);
prev_status = root_status = pci_get_long(aer_cap + PCI_ERR_ROOT_STATUS);
if (cmd & PCI_COMMAND_SERR) {
/* System Error.
*
* The way to report System Error is platform specific and
* it isn't implemented in qemu right now.
* So just discard the error for now.
* OS which cares of aer would receive errors via
* native aer mechanims, so this wouldn't matter.
*/
}
/* Errro Message Received: Root Error Status register */
switch (msg->severity) {
case PCI_ERR_ROOT_CMD_COR_EN:
if (root_status & PCI_ERR_ROOT_COR_RCV) {
root_status |= PCI_ERR_ROOT_MULTI_COR_RCV;
} else {
pci_set_word(aer_cap + PCI_ERR_ROOT_ERR_SRC + PCI_ERR_SRC_COR_OFFS,
msg->source_id);
}
root_status |= PCI_ERR_ROOT_COR_RCV;
break;
case PCI_ERR_ROOT_CMD_NONFATAL_EN:
root_status |= PCI_ERR_ROOT_NONFATAL_RCV;
break;
case PCI_ERR_ROOT_CMD_FATAL_EN:
if (!(root_status & PCI_ERR_ROOT_UNCOR_RCV)) {
root_status |= PCI_ERR_ROOT_FIRST_FATAL;
}
root_status |= PCI_ERR_ROOT_FATAL_RCV;
break;
default:
abort();
break;
}
if (pcie_aer_msg_is_uncor(msg)) {
if (root_status & PCI_ERR_ROOT_UNCOR_RCV) {
root_status |= PCI_ERR_ROOT_MULTI_UNCOR_RCV;
} else {
pci_set_word(aer_cap + PCI_ERR_ROOT_ERR_SRC +
PCI_ERR_SRC_UNCOR_OFFS, msg->source_id);
}
root_status |= PCI_ERR_ROOT_UNCOR_RCV;
}
pci_set_long(aer_cap + PCI_ERR_ROOT_STATUS, root_status);
/* 6.2.4.1.2 Interrupt Generation */
/* All the above did was set some bits in the status register.
* Specifically these that match message severity.
* The below code relies on this fact. */
if (!(root_cmd & msg->severity) ||
(pcie_aer_status_to_cmd(prev_status) & root_cmd)) {
/* Condition is not being set or was already true so nothing to do. */
return;
}
pcie_aer_root_notify(dev);
}
/* Initialize the MSI-X structures */
int msix_init(struct PCIDevice *dev, unsigned short nentries,
MemoryRegion *table_bar, uint8_t table_bar_nr,
unsigned table_offset, MemoryRegion *pba_bar,
uint8_t pba_bar_nr, unsigned pba_offset, uint8_t cap_pos)
{
int cap;
unsigned table_size, pba_size;
uint8_t *config;
/* Nothing to do if MSI is not supported by interrupt controller */
if (!msi_supported) {
return -ENOTSUP;
}
if (nentries < 1 || nentries > PCI_MSIX_FLAGS_QSIZE + 1) {
return -EINVAL;
}
table_size = nentries * PCI_MSIX_ENTRY_SIZE;
pba_size = QEMU_ALIGN_UP(nentries, 64) / 8;
/* Sanity test: table & pba don't overlap, fit within BARs, min aligned */
if ((table_bar_nr == pba_bar_nr &&
ranges_overlap(table_offset, table_size, pba_offset, pba_size)) ||
table_offset + table_size > memory_region_size(table_bar) ||
pba_offset + pba_size > memory_region_size(pba_bar) ||
(table_offset | pba_offset) & PCI_MSIX_FLAGS_BIRMASK) {
return -EINVAL;
}
cap = pci_add_capability(dev, PCI_CAP_ID_MSIX, cap_pos, MSIX_CAP_LENGTH);
if (cap < 0) {
return cap;
}
dev->msix_cap = cap;
dev->cap_present |= QEMU_PCI_CAP_MSIX;
config = dev->config + cap;
pci_set_word(config + PCI_MSIX_FLAGS, nentries - 1);
dev->msix_entries_nr = nentries;
dev->msix_function_masked = true;
pci_set_long(config + PCI_MSIX_TABLE, table_offset | table_bar_nr);
pci_set_long(config + PCI_MSIX_PBA, pba_offset | pba_bar_nr);
/* Make flags bit writable. */
dev->wmask[cap + MSIX_CONTROL_OFFSET] |= MSIX_ENABLE_MASK |
MSIX_MASKALL_MASK;
dev->msix_table = g_malloc0(table_size);
dev->msix_pba = g_malloc0(pba_size);
dev->msix_entry_used = g_malloc0(nentries * sizeof *dev->msix_entry_used);
msix_mask_all(dev, nentries);
memory_region_init_io(&dev->msix_table_mmio, OBJECT(dev), &msix_table_mmio_ops, dev,
"msix-table", table_size);
memory_region_add_subregion(table_bar, table_offset, &dev->msix_table_mmio);
memory_region_init_io(&dev->msix_pba_mmio, OBJECT(dev), &msix_pba_mmio_ops, dev,
"msix-pba", pba_size);
memory_region_add_subregion(pba_bar, pba_offset, &dev->msix_pba_mmio);
return 0;
}
/* Initialize the SHPC structure in bridge's BAR. */
int shpc_init(PCIDevice *d, PCIBus *sec_bus, MemoryRegion *bar,
unsigned offset, Error **errp)
{
int i, ret;
int nslots = SHPC_MAX_SLOTS; /* TODO: qdev property? */
SHPCDevice *shpc = d->shpc = g_malloc0(sizeof(*d->shpc));
shpc->sec_bus = sec_bus;
ret = shpc_cap_add_config(d, errp);
if (ret) {
g_free(d->shpc);
return ret;
}
if (nslots < SHPC_MIN_SLOTS) {
return 0;
}
if (nslots > SHPC_MAX_SLOTS ||
SHPC_IDX_TO_PCI(nslots) > PCI_SLOT_MAX) {
/* TODO: report an error mesage that makes sense. */
return -EINVAL;
}
shpc->nslots = nslots;
shpc->config = g_malloc0(SHPC_SIZEOF(d));
shpc->cmask = g_malloc0(SHPC_SIZEOF(d));
shpc->wmask = g_malloc0(SHPC_SIZEOF(d));
shpc->w1cmask = g_malloc0(SHPC_SIZEOF(d));
shpc_reset(d);
pci_set_long(shpc->config + SHPC_BASE_OFFSET, offset);
pci_set_byte(shpc->wmask + SHPC_CMD_CODE, 0xff);
pci_set_byte(shpc->wmask + SHPC_CMD_TRGT, SHPC_CMD_TRGT_MAX);
pci_set_byte(shpc->wmask + SHPC_CMD_TRGT, SHPC_CMD_TRGT_MAX);
pci_set_long(shpc->wmask + SHPC_SERR_INT,
SHPC_INT_DIS |
SHPC_SERR_DIS |
SHPC_CMD_INT_DIS |
SHPC_ARB_SERR_DIS);
pci_set_long(shpc->w1cmask + SHPC_SERR_INT,
SHPC_CMD_DETECTED |
SHPC_ARB_DETECTED);
for (i = 0; i < nslots; ++i) {
pci_set_byte(shpc->wmask +
SHPC_SLOT_EVENT_SERR_INT_DIS(d, i),
SHPC_SLOT_EVENT_PRESENCE |
SHPC_SLOT_EVENT_ISOLATED_FAULT |
SHPC_SLOT_EVENT_BUTTON |
SHPC_SLOT_EVENT_MRL |
SHPC_SLOT_EVENT_CONNECTED_FAULT |
SHPC_SLOT_EVENT_MRL_SERR_DIS |
SHPC_SLOT_EVENT_CONNECTED_FAULT_SERR_DIS);
pci_set_byte(shpc->w1cmask +
SHPC_SLOT_EVENT_LATCH(i),
SHPC_SLOT_EVENT_PRESENCE |
SHPC_SLOT_EVENT_ISOLATED_FAULT |
SHPC_SLOT_EVENT_BUTTON |
SHPC_SLOT_EVENT_MRL |
SHPC_SLOT_EVENT_CONNECTED_FAULT);
}
/* TODO: init cmask */
memory_region_init_io(&shpc->mmio, OBJECT(d), &shpc_mmio_ops,
d, "shpc-mmio", SHPC_SIZEOF(d));
shpc_cap_update_dword(d);
memory_region_add_subregion(bar, offset, &shpc->mmio);
qbus_set_hotplug_handler(BUS(sec_bus), DEVICE(d), NULL);
d->cap_present |= QEMU_PCI_CAP_SHPC;
return 0;
}
/* Update dword data capability register */
static void shpc_cap_update_dword(PCIDevice *d)
{
unsigned data;
data = shpc_read(d, shpc_cap_dword(d) * 4, 4);
pci_set_long(d->config + d->shpc->cap + SHPC_CAP_DWORD_DATA, data);
}
int pcie_aer_init(PCIDevice *dev, uint8_t cap_ver, uint16_t offset,
uint16_t size, Error **errp)
{
pcie_add_capability(dev, PCI_EXT_CAP_ID_ERR, cap_ver,
offset, size);
dev->exp.aer_cap = offset;
/* clip down the value to avoid unreasonable memory usage */
if (dev->exp.aer_log.log_max > PCIE_AER_LOG_MAX_LIMIT) {
error_setg(errp, "Invalid aer_log_max %d. The max number of aer log "
"is %d", dev->exp.aer_log.log_max, PCIE_AER_LOG_MAX_LIMIT);
return -EINVAL;
}
dev->exp.aer_log.log = g_malloc0(sizeof dev->exp.aer_log.log[0] *
dev->exp.aer_log.log_max);
pci_set_long(dev->w1cmask + offset + PCI_ERR_UNCOR_STATUS,
PCI_ERR_UNC_SUPPORTED);
pci_set_long(dev->config + offset + PCI_ERR_UNCOR_SEVER,
PCI_ERR_UNC_SEVERITY_DEFAULT);
pci_set_long(dev->wmask + offset + PCI_ERR_UNCOR_SEVER,
PCI_ERR_UNC_SUPPORTED);
pci_long_test_and_set_mask(dev->w1cmask + offset + PCI_ERR_COR_STATUS,
PCI_ERR_COR_SUPPORTED);
pci_set_long(dev->config + offset + PCI_ERR_COR_MASK,
PCI_ERR_COR_MASK_DEFAULT);
pci_set_long(dev->wmask + offset + PCI_ERR_COR_MASK,
PCI_ERR_COR_SUPPORTED);
/* capabilities and control. multiple header logging is supported */
if (dev->exp.aer_log.log_max > 0) {
pci_set_long(dev->config + offset + PCI_ERR_CAP,
PCI_ERR_CAP_ECRC_GENC | PCI_ERR_CAP_ECRC_CHKC |
PCI_ERR_CAP_MHRC);
pci_set_long(dev->wmask + offset + PCI_ERR_CAP,
PCI_ERR_CAP_ECRC_GENE | PCI_ERR_CAP_ECRC_CHKE |
PCI_ERR_CAP_MHRE);
} else {
pci_set_long(dev->config + offset + PCI_ERR_CAP,
PCI_ERR_CAP_ECRC_GENC | PCI_ERR_CAP_ECRC_CHKC);
pci_set_long(dev->wmask + offset + PCI_ERR_CAP,
PCI_ERR_CAP_ECRC_GENE | PCI_ERR_CAP_ECRC_CHKE);
}
switch (pcie_cap_get_type(dev)) {
case PCI_EXP_TYPE_ROOT_PORT:
/* this case will be set by pcie_aer_root_init() */
/* fallthrough */
case PCI_EXP_TYPE_DOWNSTREAM:
case PCI_EXP_TYPE_UPSTREAM:
pci_word_test_and_set_mask(dev->wmask + PCI_BRIDGE_CONTROL,
PCI_BRIDGE_CTL_SERR);
pci_long_test_and_set_mask(dev->w1cmask + PCI_STATUS,
PCI_SEC_STATUS_RCV_SYSTEM_ERROR);
break;
default:
/* nothing */
break;
}
return 0;
}
