#include "sysemu/kvm.h"
#include "sysemu/hostmem.h"
#include "sysemu/numa.h"
+#include "hw/ppc/spapr_numa.h"
+#include "qemu/log.h"
/* Copied from the kernel arch/powerpc/platforms/pseries/msi.c */
#define RTAS_QUERY_FN 0
return route;
}
+static uint64_t spapr_msi_read(void *opaque, hwaddr addr, unsigned size)
+{
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid access\n", __func__);
+ return 0;
+}
+
/*
* MSI/MSIX memory region implementation.
* The handler handles both MSI and MSIX.
static void spapr_msi_write(void *opaque, hwaddr addr,
uint64_t data, unsigned size)
{
- SpaprMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
+ SpaprMachineState *spapr = opaque;
uint32_t irq = data;
trace_spapr_pci_msi_write(addr, data, irq);
}
static const MemoryRegionOps spapr_msi_ops = {
- /* There is no .read as the read result is undefined by PCI spec */
- .read = NULL,
+ /*
+ * .read result is undefined by PCI spec.
+ * define .read method to avoid assert failure in memory_region_init_io
+ */
+ .read = spapr_msi_read,
.write = spapr_msi_write,
.endianness = DEVICE_LITTLE_ENDIAN
};
drc_id_from_devfn(phb, chassis, devfn));
}
-static uint8_t chassis_from_bus(PCIBus *bus, Error **errp)
+static uint8_t chassis_from_bus(PCIBus *bus)
{
if (pci_bus_is_root(bus)) {
return 0;
} else {
PCIDevice *bridge = pci_bridge_get_device(bus);
- return object_property_get_uint(OBJECT(bridge), "chassis_nr", errp);
+ return object_property_get_uint(OBJECT(bridge), "chassis_nr",
+ &error_abort);
}
}
static SpaprDrc *drc_from_dev(SpaprPhbState *phb, PCIDevice *dev)
{
- Error *local_err = NULL;
- uint8_t chassis = chassis_from_bus(pci_get_bus(dev), &local_err);
-
- if (local_err) {
- error_report_err(local_err);
- return NULL;
- }
+ uint8_t chassis = chassis_from_bus(pci_get_bus(dev));
return drc_from_devfn(phb, chassis, dev->devfn);
}
-static void add_drcs(SpaprPhbState *phb, PCIBus *bus, Error **errp)
+static void add_drcs(SpaprPhbState *phb, PCIBus *bus)
{
Object *owner;
int i;
uint8_t chassis;
- Error *local_err = NULL;
if (!phb->dr_enabled) {
return;
}
- chassis = chassis_from_bus(bus, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- return;
- }
+ chassis = chassis_from_bus(bus);
if (pci_bus_is_root(bus)) {
owner = OBJECT(phb);
}
}
-static void remove_drcs(SpaprPhbState *phb, PCIBus *bus, Error **errp)
+static void remove_drcs(SpaprPhbState *phb, PCIBus *bus)
{
int i;
uint8_t chassis;
- Error *local_err = NULL;
if (!phb->dr_enabled) {
return;
}
- chassis = chassis_from_bus(bus, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- return;
- }
+ chassis = chassis_from_bus(bus);
for (i = PCI_SLOT_MAX * PCI_FUNC_MAX - 1; i >= 0; i--) {
SpaprDrc *drc = drc_from_devfn(phb, chassis, i);
return offset;
}
+char *spapr_pci_fw_dev_name(PCIDevice *dev)
+{
+ const gchar *basename;
+ int slot = PCI_SLOT(dev->devfn);
+ int func = PCI_FUNC(dev->devfn);
+ uint32_t ccode = pci_default_read_config(dev, PCI_CLASS_PROG, 3);
+
+ basename = dt_name_from_class((ccode >> 16) & 0xff, (ccode >> 8) & 0xff,
+ ccode & 0xff);
+
+ if (func != 0) {
+ return g_strdup_printf("%s@%x,%x", basename, slot, func);
+ } else {
+ return g_strdup_printf("%s@%x", basename, slot);
+ }
+}
+
/* create OF node for pci device and required OF DT properties */
static int spapr_dt_pci_device(SpaprPhbState *sphb, PCIDevice *dev,
void *fdt, int parent_offset)
{
int offset;
- const gchar *basename;
- gchar *nodename;
- int slot = PCI_SLOT(dev->devfn);
- int func = PCI_FUNC(dev->devfn);
+ g_autofree gchar *nodename = spapr_pci_fw_dev_name(dev);
PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
ResourceProps rp;
SpaprDrc *drc = drc_from_dev(sphb, dev);
uint32_t pci_status = pci_default_read_config(dev, PCI_STATUS, 2);
gchar *loc_code;
- basename = dt_name_from_class((ccode >> 16) & 0xff, (ccode >> 8) & 0xff,
- ccode & 0xff);
-
- if (func != 0) {
- nodename = g_strdup_printf("%s@%x,%x", basename, slot, func);
- } else {
- nodename = g_strdup_printf("%s@%x", basename, slot);
- }
-
_FDT(offset = fdt_add_subnode(fdt, parent_offset, nodename));
- g_free(nodename);
-
/* in accordance with PAPR+ v2.7 13.6.3, Table 181 */
_FDT(fdt_setprop_cell(fdt, offset, "vendor-id", vendor_id));
_FDT(fdt_setprop_cell(fdt, offset, "device-id", device_id));
}
static void spapr_pci_bridge_plug(SpaprPhbState *phb,
- PCIBridge *bridge,
- Error **errp)
+ PCIBridge *bridge)
{
- Error *local_err = NULL;
PCIBus *bus = pci_bridge_get_sec_bus(bridge);
- add_drcs(phb, bus, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- return;
+ add_drcs(phb, bus);
+}
+
+/* Returns non-zero if the value of "chassis_nr" is already in use */
+static int check_chassis_nr(Object *obj, void *opaque)
+{
+ int new_chassis_nr =
+ object_property_get_uint(opaque, "chassis_nr", &error_abort);
+ int chassis_nr =
+ object_property_get_uint(obj, "chassis_nr", NULL);
+
+ if (!object_dynamic_cast(obj, TYPE_PCI_BRIDGE)) {
+ return 0;
+ }
+
+ /* Skip unsupported bridge types */
+ if (!chassis_nr) {
+ return 0;
+ }
+
+ /* Skip self */
+ if (obj == opaque) {
+ return 0;
}
+
+ return chassis_nr == new_chassis_nr;
}
-static void spapr_pci_plug(HotplugHandler *plug_handler,
- DeviceState *plugged_dev, Error **errp)
+static bool bridge_has_valid_chassis_nr(Object *bridge, Error **errp)
+{
+ int chassis_nr =
+ object_property_get_uint(bridge, "chassis_nr", NULL);
+
+ /*
+ * slotid_cap_init() already ensures that "chassis_nr" isn't null for
+ * standard PCI bridges, so this really tells if "chassis_nr" is present
+ * or not.
+ */
+ if (!chassis_nr) {
+ error_setg(errp, "PCI Bridge lacks a \"chassis_nr\" property");
+ error_append_hint(errp, "Try -device pci-bridge instead.\n");
+ return false;
+ }
+
+ /* We want unique values for "chassis_nr" */
+ if (object_child_foreach_recursive(object_get_root(), check_chassis_nr,
+ bridge)) {
+ error_setg(errp, "Bridge chassis %d already in use", chassis_nr);
+ return false;
+ }
+
+ return true;
+}
+
+static void spapr_pci_pre_plug(HotplugHandler *plug_handler,
+ DeviceState *plugged_dev, Error **errp)
{
SpaprPhbState *phb = SPAPR_PCI_HOST_BRIDGE(DEVICE(plug_handler));
PCIDevice *pdev = PCI_DEVICE(plugged_dev);
PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(plugged_dev);
SpaprDrc *drc = drc_from_dev(phb, pdev);
- Error *local_err = NULL;
PCIBus *bus = PCI_BUS(qdev_get_parent_bus(DEVICE(pdev)));
uint32_t slotnr = PCI_SLOT(pdev->devfn);
- /* if DR is disabled we don't need to do anything in the case of
- * hotplug or coldplug callbacks
- */
if (!phb->dr_enabled) {
/* if this is a hotplug operation initiated by the user
* we need to let them know it's not enabled
*/
if (plugged_dev->hotplugged) {
- error_setg(&local_err, QERR_BUS_NO_HOTPLUG,
+ error_setg(errp, QERR_BUS_NO_HOTPLUG,
object_get_typename(OBJECT(phb)));
+ return;
}
- goto out;
}
- g_assert(drc);
-
if (pc->is_bridge) {
- spapr_pci_bridge_plug(phb, PCI_BRIDGE(plugged_dev), &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
+ if (!bridge_has_valid_chassis_nr(OBJECT(plugged_dev), errp)) {
return;
}
}
*/
if (plugged_dev->hotplugged && bus->devices[PCI_DEVFN(slotnr, 0)] &&
PCI_FUNC(pdev->devfn) != 0) {
- error_setg(&local_err, "PCI: slot %d function 0 already ocuppied by %s,"
+ error_setg(errp, "PCI: slot %d function 0 already occupied by %s,"
" additional functions can no longer be exposed to guest.",
slotnr, bus->devices[PCI_DEVFN(slotnr, 0)]->name);
- goto out;
}
- spapr_drc_attach(drc, DEVICE(pdev), &local_err);
- if (local_err) {
- goto out;
+ if (drc && drc->dev) {
+ error_setg(errp, "PCI: slot %d already occupied by %s", slotnr,
+ pci_get_function_0(PCI_DEVICE(drc->dev))->name);
+ return;
+ }
+}
+
+static void spapr_pci_plug(HotplugHandler *plug_handler,
+ DeviceState *plugged_dev, Error **errp)
+{
+ SpaprPhbState *phb = SPAPR_PCI_HOST_BRIDGE(DEVICE(plug_handler));
+ PCIDevice *pdev = PCI_DEVICE(plugged_dev);
+ PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(plugged_dev);
+ SpaprDrc *drc = drc_from_dev(phb, pdev);
+ uint32_t slotnr = PCI_SLOT(pdev->devfn);
+
+ /*
+ * If DR is disabled we don't need to do anything in the case of
+ * hotplug or coldplug callbacks.
+ */
+ if (!phb->dr_enabled) {
+ return;
+ }
+
+ g_assert(drc);
+
+ if (pc->is_bridge) {
+ spapr_pci_bridge_plug(phb, PCI_BRIDGE(plugged_dev));
}
+ /* spapr_pci_pre_plug() already checked the DRC is attachable */
+ spapr_drc_attach(drc, DEVICE(pdev));
+
/* If this is function 0, signal hotplug for all the device functions.
* Otherwise defer sending the hotplug event.
*/
spapr_drc_reset(drc);
} else if (PCI_FUNC(pdev->devfn) == 0) {
int i;
- uint8_t chassis = chassis_from_bus(pci_get_bus(pdev), &local_err);
-
- if (local_err) {
- error_propagate(errp, local_err);
- return;
- }
+ uint8_t chassis = chassis_from_bus(pci_get_bus(pdev));
for (i = 0; i < 8; i++) {
SpaprDrc *func_drc;
}
}
}
-
-out:
- error_propagate(errp, local_err);
}
static void spapr_pci_bridge_unplug(SpaprPhbState *phb,
- PCIBridge *bridge,
- Error **errp)
+ PCIBridge *bridge)
{
- Error *local_err = NULL;
PCIBus *bus = pci_bridge_get_sec_bus(bridge);
- remove_drcs(phb, bus, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- return;
- }
+ remove_drcs(phb, bus);
}
static void spapr_pci_unplug(HotplugHandler *plug_handler,
pci_device_reset(PCI_DEVICE(plugged_dev));
if (pc->is_bridge) {
- Error *local_err = NULL;
- spapr_pci_bridge_unplug(phb, PCI_BRIDGE(plugged_dev), &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- }
+ spapr_pci_bridge_unplug(phb, PCI_BRIDGE(plugged_dev));
return;
}
- object_property_set_bool(OBJECT(plugged_dev), false, "realized", NULL);
+ qdev_unrealize(plugged_dev);
}
static void spapr_pci_unplug_request(HotplugHandler *plug_handler,
SpaprDrcClass *func_drck;
SpaprDREntitySense state;
int i;
- Error *local_err = NULL;
- uint8_t chassis = chassis_from_bus(pci_get_bus(pdev), &local_err);
-
- if (local_err) {
- error_propagate(errp, local_err);
- return;
- }
+ uint8_t chassis = chassis_from_bus(pci_get_bus(pdev));
if (pc->is_bridge) {
error_setg(errp, "PCI: Hot unplug of PCI bridges not supported");
+ return;
+ }
+ if (object_property_get_uint(OBJECT(pdev), "nvlink2-tgt", NULL)) {
+ error_setg(errp, "PCI: Cannot unplug NVLink2 devices");
+ return;
}
/* ensure any other present functions are pending unplug */
sphb->dtbusname = NULL;
}
-static void spapr_phb_unrealize(DeviceState *dev, Error **errp)
+static void spapr_phb_unrealize(DeviceState *dev)
{
SpaprMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
SysBusDevice *s = SYS_BUS_DEVICE(dev);
SpaprTceTable *tcet;
int i;
const unsigned windows_supported = spapr_phb_windows_supported(sphb);
- Error *local_err = NULL;
spapr_phb_nvgpu_free(sphb);
}
}
- remove_drcs(sphb, phb->bus, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- return;
- }
+ remove_drcs(sphb, phb->bus);
for (i = PCI_NUM_PINS - 1; i >= 0; i--) {
if (sphb->lsi_table[i].irq) {
address_space_remove_listeners(&sphb->iommu_as);
address_space_destroy(&sphb->iommu_as);
- qbus_set_hotplug_handler(BUS(phb->bus), NULL, &error_abort);
+ qbus_set_hotplug_handler(BUS(phb->bus), NULL);
pci_unregister_root_bus(phb->bus);
memory_region_del_subregion(get_system_memory(), &sphb->iowindow);
static void spapr_phb_realize(DeviceState *dev, Error **errp)
{
+ ERRP_GUARD();
/* We don't use SPAPR_MACHINE() in order to exit gracefully if the user
* tries to add a sPAPR PHB to a non-pseries machine.
*/
uint64_t msi_window_size = 4096;
SpaprTceTable *tcet;
const unsigned windows_supported = spapr_phb_windows_supported(sphb);
- Error *local_err = NULL;
if (!spapr) {
error_setg(errp, TYPE_SPAPR_PCI_HOST_BRIDGE " needs a pseries machine");
bus->flags |= PCI_BUS_EXTENDED_CONFIG_SPACE;
}
phb->bus = bus;
- qbus_set_hotplug_handler(BUS(phb->bus), OBJECT(sphb), NULL);
+ qbus_set_hotplug_handler(BUS(phb->bus), OBJECT(sphb));
/*
* Initialize PHB address space.
/* Initialize the LSI table */
for (i = 0; i < PCI_NUM_PINS; i++) {
- uint32_t irq = SPAPR_IRQ_PCI_LSI + sphb->index * PCI_NUM_PINS + i;
+ int irq = SPAPR_IRQ_PCI_LSI + sphb->index * PCI_NUM_PINS + i;
if (smc->legacy_irq_allocation) {
- irq = spapr_irq_findone(spapr, &local_err);
- if (local_err) {
- error_propagate_prepend(errp, local_err,
- "can't allocate LSIs: ");
+ irq = spapr_irq_findone(spapr, errp);
+ if (irq < 0) {
+ error_prepend(errp, "can't allocate LSIs: ");
/*
* Older machines will never support PHB hotplug, ie, this is an
* init only path and QEMU will terminate. No need to rollback.
}
}
- spapr_irq_claim(spapr, irq, true, &local_err);
- if (local_err) {
- error_propagate_prepend(errp, local_err, "can't allocate LSIs: ");
+ if (spapr_irq_claim(spapr, irq, true, errp) < 0) {
+ error_prepend(errp, "can't allocate LSIs: ");
goto unrealize;
}
}
/* allocate connectors for child PCI devices */
- add_drcs(sphb, phb->bus, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- goto unrealize;
- }
+ add_drcs(sphb, phb->bus);
/* DMA setup */
for (i = 0; i < windows_supported; ++i) {
return;
unrealize:
- spapr_phb_unrealize(dev, NULL);
+ spapr_phb_unrealize(dev);
}
static int spapr_phb_children_reset(Object *child, void *opaque)
pcie_ecs, true),
DEFINE_PROP_UINT64("gpa", SpaprPhbState, nv2_gpa_win_addr, 0),
DEFINE_PROP_UINT64("atsd", SpaprPhbState, nv2_atsd_win_addr, 0),
+ DEFINE_PROP_BOOL("pre-5.1-associativity", SpaprPhbState,
+ pre_5_1_assoc, false),
DEFINE_PROP_END_OF_LIST(),
};
return 0;
}
+static int spapr_pci_post_save(void *opaque)
+{
+ SpaprPhbState *sphb = opaque;
+
+ g_free(sphb->msi_devs);
+ sphb->msi_devs = NULL;
+ sphb->msi_devs_num = 0;
+ return 0;
+}
+
static int spapr_pci_post_load(void *opaque, int version_id)
{
SpaprPhbState *sphb = opaque;
.version_id = 2,
.minimum_version_id = 2,
.pre_save = spapr_pci_pre_save,
+ .post_save = spapr_pci_post_save,
.post_load = spapr_pci_post_load,
.fields = (VMStateField[]) {
VMSTATE_UINT64_EQUAL(buid, SpaprPhbState, NULL),
/* Supported by TYPE_SPAPR_MACHINE */
dc->user_creatable = true;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+ hp->pre_plug = spapr_pci_pre_plug;
hp->plug = spapr_pci_plug;
hp->unplug = spapr_pci_unplug;
hp->unplug_request = spapr_pci_unplug_request;
cpu_to_be32(1),
cpu_to_be32(RTAS_IBM_RESET_PE_DMA_WINDOW)
};
- uint32_t associativity[] = {cpu_to_be32(0x4),
- cpu_to_be32(0x0),
- cpu_to_be32(0x0),
- cpu_to_be32(0x0),
- cpu_to_be32(phb->numa_node)};
SpaprTceTable *tcet;
SpaprDrc *drc;
Error *err = NULL;
/* Advertise NUMA via ibm,associativity */
if (phb->numa_node != -1) {
- _FDT(fdt_setprop(fdt, bus_off, "ibm,associativity", associativity,
- sizeof(associativity)));
+ spapr_numa_write_associativity_dt(spapr, fdt, bus_off, phb->numa_node);
}
/* Build the interrupt-map, this must matches what is done
bool be = *(bool *)opaque;
if (object_dynamic_cast(OBJECT(dev), "VGA")
- || object_dynamic_cast(OBJECT(dev), "secondary-vga")) {
- object_property_set_bool(OBJECT(dev), be, "big-endian-framebuffer",
+ || object_dynamic_cast(OBJECT(dev), "secondary-vga")
+ || object_dynamic_cast(OBJECT(dev), "bochs-display")
+ || object_dynamic_cast(OBJECT(dev), "virtio-vga")) {
+ object_property_set_bool(OBJECT(dev), "big-endian-framebuffer", be,
&error_abort);
}
return 0;
}
-void spapr_pci_switch_vga(bool big_endian)
+void spapr_pci_switch_vga(SpaprMachineState *spapr, bool big_endian)
{
- SpaprMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
SpaprPhbState *sphb;
/*
projects / mirror_qemu.git / blobdiff