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qemu-e2k/hw/core/qdev-properties-system.c
Stefan Hajnoczi cf03a152c5 qdev: add IOThreadVirtQueueMappingList property type 
virtio-blk and virtio-scsi devices will need a way to specify the
mapping between IOThreads and virtqueues. At the moment all virtqueues
are assigned to a single IOThread or the main loop. This single thread
can be a CPU bottleneck, so it is necessary to allow finer-grained
assignment to spread the load.

Introduce DEFINE_PROP_IOTHREAD_VQ_MAPPING_LIST() so devices can take a
parameter that maps virtqueues to IOThreads. The command-line syntax for
this new property is as follows:

  --device '{"driver":"foo","iothread-vq-mapping":[{"iothread":"iothread0","vqs":[0,1,2]},...]}'

IOThreads are specified by name and virtqueues are specified by 0-based
index.

It will be common to simply assign virtqueues round-robin across a set
of IOThreads. A convenient syntax that does not require specifying
individual virtqueue indices is available:

  --device '{"driver":"foo","iothread-vq-mapping":[{"iothread":"iothread0"},{"iothread":"iothread1"},...]}'

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20231220134755.814917-4-stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-12-21 22:49:28 +01:00

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/*
* qdev property parsing
* (parts specific for qemu-system-*)
*
* This file is based on code from hw/qdev-properties.c from
* commit 074a86fccd185616469dfcdc0e157f438aebba18,
* Copyright (c) Gerd Hoffmann <kraxel@redhat.com> and other contributors.
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "hw/qdev-properties.h"
#include "hw/qdev-properties-system.h"
#include "qapi/error.h"
#include "qapi/visitor.h"
#include "qapi/qapi-types-block.h"
#include "qapi/qapi-types-machine.h"
#include "qapi/qapi-types-migration.h"
#include "qapi/qapi-visit-virtio.h"
#include "qapi/qmp/qerror.h"
#include "qemu/ctype.h"
#include "qemu/cutils.h"
#include "qemu/units.h"
#include "qemu/uuid.h"
#include "qemu/error-report.h"
#include "qdev-prop-internal.h"
#include "audio/audio.h"
#include "chardev/char-fe.h"
#include "sysemu/block-backend.h"
#include "sysemu/blockdev.h"
#include "net/net.h"
#include "hw/pci/pci.h"
#include "hw/pci/pcie.h"
#include "hw/i386/x86.h"
#include "util/block-helpers.h"
static bool check_prop_still_unset(Object *obj, const char *name,
const void *old_val, const char *new_val,
bool allow_override, Error **errp)
{
const GlobalProperty *prop = qdev_find_global_prop(obj, name);
if (!old_val || (!prop && allow_override)) {
return true;
}
if (prop) {
error_setg(errp, "-global %s.%s=... conflicts with %s=%s",
prop->driver, prop->property, name, new_val);
} else {
/* Error message is vague, but a better one would be hard */
error_setg(errp, "%s=%s conflicts, and override is not implemented",
name, new_val);
}
return false;
}
/* --- drive --- */
static void get_drive(Object *obj, Visitor *v, const char *name, void *opaque,
Error **errp)
{
Property *prop = opaque;
void **ptr = object_field_prop_ptr(obj, prop);
const char *value;
char *p;
if (*ptr) {
value = blk_name(*ptr);
if (!*value) {
BlockDriverState *bs = blk_bs(*ptr);
if (bs) {
value = bdrv_get_node_name(bs);
}
}
} else {
value = "";
}
p = g_strdup(value);
visit_type_str(v, name, &p, errp);
g_free(p);
}
static void set_drive_helper(Object *obj, Visitor *v, const char *name,
void *opaque, bool iothread, Error **errp)
{
DeviceState *dev = DEVICE(obj);
Property *prop = opaque;
void **ptr = object_field_prop_ptr(obj, prop);
char *str;
BlockBackend *blk;
bool blk_created = false;
int ret;
BlockDriverState *bs;
AioContext *ctx;
if (!visit_type_str(v, name, &str, errp)) {
return;
}
if (!check_prop_still_unset(obj, name, *ptr, str, true, errp)) {
return;
}
if (*ptr) {
/* BlockBackend already exists. So, we want to change attached node */
blk = *ptr;
ctx = blk_get_aio_context(blk);
bs = bdrv_lookup_bs(NULL, str, errp);
if (!bs) {
return;
}
if (ctx != bdrv_get_aio_context(bs)) {
error_setg(errp, "Different aio context is not supported for new "
"node");
}
blk_replace_bs(blk, bs, errp);
return;
}
if (!*str) {
g_free(str);
*ptr = NULL;
return;
}
blk = blk_by_name(str);
if (!blk) {
bs = bdrv_lookup_bs(NULL, str, NULL);
if (bs) {
/*
* If the device supports iothreads, it will make sure to move the
* block node to the right AioContext if necessary (or fail if this
* isn't possible because of other users). Devices that are not
* aware of iothreads require their BlockBackends to be in the main
* AioContext.
*/
ctx = bdrv_get_aio_context(bs);
blk = blk_new(iothread ? ctx : qemu_get_aio_context(),
0, BLK_PERM_ALL);
blk_created = true;
ret = blk_insert_bs(blk, bs, errp);
if (ret < 0) {
goto fail;
}
}
}
if (!blk) {
error_setg(errp, "Property '%s.%s' can't find value '%s'",
object_get_typename(OBJECT(dev)), name, str);
goto fail;
}
if (blk_attach_dev(blk, dev) < 0) {
DriveInfo *dinfo = blk_legacy_dinfo(blk);
if (dinfo && dinfo->type != IF_NONE) {
error_setg(errp, "Drive '%s' is already in use because "
"it has been automatically connected to another "
"device (did you need 'if=none' in the drive options?)",
str);
} else {
error_setg(errp, "Drive '%s' is already in use by another device",
str);
}
goto fail;
}
*ptr = blk;
fail:
if (blk_created) {
/* If we need to keep a reference, blk_attach_dev() took it */
blk_unref(blk);
}
g_free(str);
}
static void set_drive(Object *obj, Visitor *v, const char *name, void *opaque,
Error **errp)
{
set_drive_helper(obj, v, name, opaque, false, errp);
}
static void set_drive_iothread(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
set_drive_helper(obj, v, name, opaque, true, errp);
}
static void release_drive(Object *obj, const char *name, void *opaque)
{
DeviceState *dev = DEVICE(obj);
Property *prop = opaque;
BlockBackend **ptr = object_field_prop_ptr(obj, prop);
if (*ptr) {
blockdev_auto_del(*ptr);
blk_detach_dev(*ptr, dev);
}
}
const PropertyInfo qdev_prop_drive = {
.name = "str",
.description = "Node name or ID of a block device to use as a backend",
.realized_set_allowed = true,
.get = get_drive,
.set = set_drive,
.release = release_drive,
};
const PropertyInfo qdev_prop_drive_iothread = {
.name = "str",
.description = "Node name or ID of a block device to use as a backend",
.realized_set_allowed = true,
.get = get_drive,
.set = set_drive_iothread,
.release = release_drive,
};
/* --- character device --- */
static void get_chr(Object *obj, Visitor *v, const char *name, void *opaque,
Error **errp)
{
CharBackend *be = object_field_prop_ptr(obj, opaque);
char *p;
p = g_strdup(be->chr && be->chr->label ? be->chr->label : "");
visit_type_str(v, name, &p, errp);
g_free(p);
}
static void set_chr(Object *obj, Visitor *v, const char *name, void *opaque,
Error **errp)
{
Property *prop = opaque;
CharBackend *be = object_field_prop_ptr(obj, prop);
Chardev *s;
char *str;
if (!visit_type_str(v, name, &str, errp)) {
return;
}
/*
* TODO Should this really be an error? If no, the old value
* needs to be released before we store the new one.
*/
if (!check_prop_still_unset(obj, name, be->chr, str, false, errp)) {
return;
}
if (!*str) {
g_free(str);
be->chr = NULL;
return;
}
s = qemu_chr_find(str);
if (s == NULL) {
error_setg(errp, "Property '%s.%s' can't find value '%s'",
object_get_typename(obj), name, str);
} else if (!qemu_chr_fe_init(be, s, errp)) {
error_prepend(errp, "Property '%s.%s' can't take value '%s': ",
object_get_typename(obj), name, str);
}
g_free(str);
}
static void release_chr(Object *obj, const char *name, void *opaque)
{
Property *prop = opaque;
CharBackend *be = object_field_prop_ptr(obj, prop);
qemu_chr_fe_deinit(be, false);
}
const PropertyInfo qdev_prop_chr = {
.name = "str",
.description = "ID of a chardev to use as a backend",
.get = get_chr,
.set = set_chr,
.release = release_chr,
};
/* --- mac address --- */
/*
* accepted syntax versions:
* 01:02:03:04:05:06
* 01-02-03-04-05-06
*/
static void get_mac(Object *obj, Visitor *v, const char *name, void *opaque,
Error **errp)
{
Property *prop = opaque;
MACAddr *mac = object_field_prop_ptr(obj, prop);
char buffer[2 * 6 + 5 + 1];
char *p = buffer;
snprintf(buffer, sizeof(buffer), "%02x:%02x:%02x:%02x:%02x:%02x",
mac->a[0], mac->a[1], mac->a[2],
mac->a[3], mac->a[4], mac->a[5]);
visit_type_str(v, name, &p, errp);
}
static void set_mac(Object *obj, Visitor *v, const char *name, void *opaque,
Error **errp)
{
Property *prop = opaque;
MACAddr *mac = object_field_prop_ptr(obj, prop);
int i, pos;
char *str;
const char *p;
if (!visit_type_str(v, name, &str, errp)) {
return;
}
for (i = 0, pos = 0; i < 6; i++, pos += 3) {
long val;
if (!qemu_isxdigit(str[pos])) {
goto inval;
}
if (!qemu_isxdigit(str[pos + 1])) {
goto inval;
}
if (i == 5) {
if (str[pos + 2] != '\0') {
goto inval;
}
} else {
if (str[pos + 2] != ':' && str[pos + 2] != '-') {
goto inval;
}
}
if (qemu_strtol(str + pos, &p, 16, &val) < 0 || val > 0xff) {
goto inval;
}
mac->a[i] = val;
}
g_free(str);
return;
inval:
error_set_from_qdev_prop_error(errp, EINVAL, obj, name, str);
g_free(str);
}
const PropertyInfo qdev_prop_macaddr = {
.name = "str",
.description = "Ethernet 6-byte MAC Address, example: 52:54:00:12:34:56",
.get = get_mac,
.set = set_mac,
};
void qdev_prop_set_macaddr(DeviceState *dev, const char *name,
const uint8_t *value)
{
char str[2 * 6 + 5 + 1];
snprintf(str, sizeof(str), "%02x:%02x:%02x:%02x:%02x:%02x",
value[0], value[1], value[2], value[3], value[4], value[5]);
object_property_set_str(OBJECT(dev), name, str, &error_abort);
}
/* --- netdev device --- */
static void get_netdev(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
Property *prop = opaque;
NICPeers *peers_ptr = object_field_prop_ptr(obj, prop);
char *p = g_strdup(peers_ptr->ncs[0] ? peers_ptr->ncs[0]->name : "");
visit_type_str(v, name, &p, errp);
g_free(p);
}
static void set_netdev(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
Property *prop = opaque;
NICPeers *peers_ptr = object_field_prop_ptr(obj, prop);
NetClientState **ncs = peers_ptr->ncs;
NetClientState *peers[MAX_QUEUE_NUM];
int queues, err = 0, i = 0;
char *str;
if (!visit_type_str(v, name, &str, errp)) {
return;
}
queues = qemu_find_net_clients_except(str, peers,
NET_CLIENT_DRIVER_NIC,
MAX_QUEUE_NUM);
if (queues == 0) {
err = -ENOENT;
goto out;
}
if (queues > MAX_QUEUE_NUM) {
error_setg(errp, "queues of backend '%s'(%d) exceeds QEMU limitation(%d)",
str, queues, MAX_QUEUE_NUM);
goto out;
}
for (i = 0; i < queues; i++) {
if (peers[i]->peer) {
err = -EEXIST;
goto out;
}
/*
* TODO Should this really be an error? If no, the old value
* needs to be released before we store the new one.
*/
if (!check_prop_still_unset(obj, name, ncs[i], str, false, errp)) {
goto out;
}
if (peers[i]->info->check_peer_type) {
if (!peers[i]->info->check_peer_type(peers[i], obj->class, errp)) {
goto out;
}
}
ncs[i] = peers[i];
ncs[i]->queue_index = i;
}
peers_ptr->queues = queues;
out:
error_set_from_qdev_prop_error(errp, err, obj, prop->name, str);
g_free(str);
}
const PropertyInfo qdev_prop_netdev = {
.name = "str",
.description = "ID of a netdev to use as a backend",
.get = get_netdev,
.set = set_netdev,
};
/* --- audiodev --- */
static void get_audiodev(Object *obj, Visitor *v, const char* name,
void *opaque, Error **errp)
{
Property *prop = opaque;
QEMUSoundCard *card = object_field_prop_ptr(obj, prop);
char *p = g_strdup(audio_get_id(card));
visit_type_str(v, name, &p, errp);
g_free(p);
}
static void set_audiodev(Object *obj, Visitor *v, const char* name,
void *opaque, Error **errp)
{
Property *prop = opaque;
QEMUSoundCard *card = object_field_prop_ptr(obj, prop);
AudioState *state;
g_autofree char *str = NULL;
if (!visit_type_str(v, name, &str, errp)) {
return;
}
state = audio_state_by_name(str, errp);
if (state) {
card->state = state;
}
}
const PropertyInfo qdev_prop_audiodev = {
.name = "str",
.description = "ID of an audiodev to use as a backend",
/* release done on shutdown */
.get = get_audiodev,
.set = set_audiodev,
};
bool qdev_prop_set_drive_err(DeviceState *dev, const char *name,
BlockBackend *value, Error **errp)
{
const char *ref = "";
if (value) {
ref = blk_name(value);
if (!*ref) {
const BlockDriverState *bs = blk_bs(value);
if (bs) {
ref = bdrv_get_node_name(bs);
}
}
}
return object_property_set_str(OBJECT(dev), name, ref, errp);
}
void qdev_prop_set_drive(DeviceState *dev, const char *name,
BlockBackend *value)
{
qdev_prop_set_drive_err(dev, name, value, &error_abort);
}
void qdev_prop_set_chr(DeviceState *dev, const char *name,
Chardev *value)
{
assert(!value || value->label);
object_property_set_str(OBJECT(dev), name, value ? value->label : "",
&error_abort);
}
void qdev_prop_set_netdev(DeviceState *dev, const char *name,
NetClientState *value)
{
assert(!value || value->name);
object_property_set_str(OBJECT(dev), name, value ? value->name : "",
&error_abort);
}
void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd)
{
qdev_prop_set_macaddr(dev, "mac", nd->macaddr.a);
if (nd->netdev) {
qdev_prop_set_netdev(dev, "netdev", nd->netdev);
}
if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED &&
object_property_find(OBJECT(dev), "vectors")) {
qdev_prop_set_uint32(dev, "vectors", nd->nvectors);
}
nd->instantiated = 1;
}
/* --- lost tick policy --- */
static void qdev_propinfo_set_losttickpolicy(Object *obj, Visitor *v,
const char *name, void *opaque,
Error **errp)
{
Property *prop = opaque;
int *ptr = object_field_prop_ptr(obj, prop);
int value;
if (!visit_type_enum(v, name, &value, prop->info->enum_table, errp)) {
return;
}
if (value == LOST_TICK_POLICY_SLEW) {
MachineState *ms = MACHINE(qdev_get_machine());
if (!object_dynamic_cast(OBJECT(ms), TYPE_X86_MACHINE)) {
error_setg(errp,
"the 'slew' policy is only available for x86 machines");
return;
}
}
*ptr = value;
}
QEMU_BUILD_BUG_ON(sizeof(LostTickPolicy) != sizeof(int));
const PropertyInfo qdev_prop_losttickpolicy = {
.name = "LostTickPolicy",
.enum_table = &LostTickPolicy_lookup,
.get = qdev_propinfo_get_enum,
.set = qdev_propinfo_set_losttickpolicy,
.set_default_value = qdev_propinfo_set_default_value_enum,
};
/* --- blocksize --- */
static void set_blocksize(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
DeviceState *dev = DEVICE(obj);
Property *prop = opaque;
uint32_t *ptr = object_field_prop_ptr(obj, prop);
uint64_t value;
Error *local_err = NULL;
if (!visit_type_size(v, name, &value, errp)) {
return;
}
check_block_size(dev->id ? : "", name, value, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
*ptr = value;
}
const PropertyInfo qdev_prop_blocksize = {
.name = "size",
.description = "A power of two between " MIN_BLOCK_SIZE_STR
" and " MAX_BLOCK_SIZE_STR,
.get = qdev_propinfo_get_size32,
.set = set_blocksize,
.set_default_value = qdev_propinfo_set_default_value_uint,
};
/* --- Block device error handling policy --- */
QEMU_BUILD_BUG_ON(sizeof(BlockdevOnError) != sizeof(int));
const PropertyInfo qdev_prop_blockdev_on_error = {
.name = "BlockdevOnError",
.description = "Error handling policy, "
"report/ignore/enospc/stop/auto",
.enum_table = &BlockdevOnError_lookup,
.get = qdev_propinfo_get_enum,
.set = qdev_propinfo_set_enum,
.set_default_value = qdev_propinfo_set_default_value_enum,
};
/* --- BIOS CHS translation */
QEMU_BUILD_BUG_ON(sizeof(BiosAtaTranslation) != sizeof(int));
const PropertyInfo qdev_prop_bios_chs_trans = {
.name = "BiosAtaTranslation",
.description = "Logical CHS translation algorithm, "
"auto/none/lba/large/rechs",
.enum_table = &BiosAtaTranslation_lookup,
.get = qdev_propinfo_get_enum,
.set = qdev_propinfo_set_enum,
.set_default_value = qdev_propinfo_set_default_value_enum,
};
/* --- FDC default drive types */
const PropertyInfo qdev_prop_fdc_drive_type = {
.name = "FdcDriveType",
.description = "FDC drive type, "
"144/288/120/none/auto",
.enum_table = &FloppyDriveType_lookup,
.get = qdev_propinfo_get_enum,
.set = qdev_propinfo_set_enum,
.set_default_value = qdev_propinfo_set_default_value_enum,
};
/* --- MultiFDCompression --- */
const PropertyInfo qdev_prop_multifd_compression = {
.name = "MultiFDCompression",
.description = "multifd_compression values, "
"none/zlib/zstd",
.enum_table = &MultiFDCompression_lookup,
.get = qdev_propinfo_get_enum,
.set = qdev_propinfo_set_enum,
.set_default_value = qdev_propinfo_set_default_value_enum,
};
/* --- MigMode --- */
QEMU_BUILD_BUG_ON(sizeof(MigMode) != sizeof(int));
const PropertyInfo qdev_prop_mig_mode = {
.name = "MigMode",
.description = "mig_mode values, "
"normal,cpr-reboot",
.enum_table = &MigMode_lookup,
.get = qdev_propinfo_get_enum,
.set = qdev_propinfo_set_enum,
.set_default_value = qdev_propinfo_set_default_value_enum,
};
/* --- Reserved Region --- */
/*
* Accepted syntax:
* <low address>:<high address>:<type>
* where low/high addresses are uint64_t in hexadecimal
* and type is a non-negative decimal integer
*/
static void get_reserved_region(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
Property *prop = opaque;
ReservedRegion *rr = object_field_prop_ptr(obj, prop);
char buffer[64];
char *p = buffer;
int rc;
rc = snprintf(buffer, sizeof(buffer), "0x%"PRIx64":0x%"PRIx64":%u",
range_lob(&rr->range), range_upb(&rr->range), rr->type);
assert(rc < sizeof(buffer));
visit_type_str(v, name, &p, errp);
}
static void set_reserved_region(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
Property *prop = opaque;
ReservedRegion *rr = object_field_prop_ptr(obj, prop);
const char *endptr;
uint64_t lob, upb;
char *str;
int ret;
if (!visit_type_str(v, name, &str, errp)) {
return;
}
ret = qemu_strtou64(str, &endptr, 16, &lob);
if (ret) {
error_setg(errp, "start address of '%s'"
" must be a hexadecimal integer", name);
goto out;
}
if (*endptr != ':') {
goto separator_error;
}
ret = qemu_strtou64(endptr + 1, &endptr, 16, &upb);
if (ret) {
error_setg(errp, "end address of '%s'"
" must be a hexadecimal integer", name);
goto out;
}
if (*endptr != ':') {
goto separator_error;
}
range_set_bounds(&rr->range, lob, upb);
ret = qemu_strtoui(endptr + 1, &endptr, 10, &rr->type);
if (ret) {
error_setg(errp, "type of '%s'"
" must be a non-negative decimal integer", name);
}
goto out;
separator_error:
error_setg(errp, "reserved region fields must be separated with ':'");
out:
g_free(str);
return;
}
const PropertyInfo qdev_prop_reserved_region = {
.name = "reserved_region",
.description = "Reserved Region, example: 0xFEE00000:0xFEEFFFFF:0",
.get = get_reserved_region,
.set = set_reserved_region,
};
/* --- pci address --- */
/*
* bus-local address, i.e. "$slot" or "$slot.$fn"
*/
static void set_pci_devfn(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
Property *prop = opaque;
int32_t value, *ptr = object_field_prop_ptr(obj, prop);
unsigned int slot, fn, n;
char *str;
if (!visit_type_str(v, name, &str, NULL)) {
if (!visit_type_int32(v, name, &value, errp)) {
return;
}
if (value < -1 || value > 255) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
name ? name : "null", "a value between -1 and 255");
return;
}
*ptr = value;
return;
}
if (sscanf(str, "%x.%x%n", &slot, &fn, &n) != 2) {
fn = 0;
if (sscanf(str, "%x%n", &slot, &n) != 1) {
goto invalid;
}
}
if (str[n] != '\0' || fn > 7 || slot > 31) {
goto invalid;
}
*ptr = slot << 3 | fn;
g_free(str);
return;
invalid:
error_set_from_qdev_prop_error(errp, EINVAL, obj, name, str);
g_free(str);
}
static int print_pci_devfn(Object *obj, Property *prop, char *dest,
size_t len)
{
int32_t *ptr = object_field_prop_ptr(obj, prop);
if (*ptr == -1) {
return snprintf(dest, len, "<unset>");
} else {
return snprintf(dest, len, "%02x.%x", *ptr >> 3, *ptr & 7);
}
}
const PropertyInfo qdev_prop_pci_devfn = {
.name = "int32",
.description = "Slot and optional function number, example: 06.0 or 06",
.print = print_pci_devfn,
.get = qdev_propinfo_get_int32,
.set = set_pci_devfn,
.set_default_value = qdev_propinfo_set_default_value_int,
};
/* --- pci host address --- */
static void get_pci_host_devaddr(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
Property *prop = opaque;
PCIHostDeviceAddress *addr = object_field_prop_ptr(obj, prop);
char buffer[] = "ffff:ff:ff.f";
char *p = buffer;
int rc = 0;
/*
* Catch "invalid" device reference from vfio-pci and allow the
* default buffer representing the non-existent device to be used.
*/
if (~addr->domain || ~addr->bus || ~addr->slot || ~addr->function) {
rc = snprintf(buffer, sizeof(buffer), "%04x:%02x:%02x.%0d",
addr->domain, addr->bus, addr->slot, addr->function);
assert(rc == sizeof(buffer) - 1);
}
visit_type_str(v, name, &p, errp);
}
/*
* Parse [<domain>:]<bus>:<slot>.<func>
* if <domain> is not supplied, it's assumed to be 0.
*/
static void set_pci_host_devaddr(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
Property *prop = opaque;
PCIHostDeviceAddress *addr = object_field_prop_ptr(obj, prop);
char *str, *p;
char *e;
unsigned long val;
unsigned long dom = 0, bus = 0;
unsigned int slot = 0, func = 0;
if (!visit_type_str(v, name, &str, errp)) {
return;
}
p = str;
val = strtoul(p, &e, 16);
if (e == p || *e != ':') {
goto inval;
}
bus = val;
p = e + 1;
val = strtoul(p, &e, 16);
if (e == p) {
goto inval;
}
if (*e == ':') {
dom = bus;
bus = val;
p = e + 1;
val = strtoul(p, &e, 16);
if (e == p) {
goto inval;
}
}
slot = val;
if (*e != '.') {
goto inval;
}
p = e + 1;
val = strtoul(p, &e, 10);
if (e == p) {
goto inval;
}
func = val;
if (dom > 0xffff || bus > 0xff || slot > 0x1f || func > 7) {
goto inval;
}
if (*e) {
goto inval;
}
addr->domain = dom;
addr->bus = bus;
addr->slot = slot;
addr->function = func;
g_free(str);
return;
inval:
error_set_from_qdev_prop_error(errp, EINVAL, obj, name, str);
g_free(str);
}
const PropertyInfo qdev_prop_pci_host_devaddr = {
.name = "str",
.description = "Address (bus/device/function) of "
"the host device, example: 04:10.0",
.get = get_pci_host_devaddr,
.set = set_pci_host_devaddr,
};
/* --- OffAutoPCIBAR off/auto/bar0/bar1/bar2/bar3/bar4/bar5 --- */
const PropertyInfo qdev_prop_off_auto_pcibar = {
.name = "OffAutoPCIBAR",
.description = "off/auto/bar0/bar1/bar2/bar3/bar4/bar5",
.enum_table = &OffAutoPCIBAR_lookup,
.get = qdev_propinfo_get_enum,
.set = qdev_propinfo_set_enum,
.set_default_value = qdev_propinfo_set_default_value_enum,
};
/* --- PCIELinkSpeed 2_5/5/8/16 -- */
static void get_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
Property *prop = opaque;
PCIExpLinkSpeed *p = object_field_prop_ptr(obj, prop);
int speed;
switch (*p) {
case QEMU_PCI_EXP_LNK_2_5GT:
speed = PCIE_LINK_SPEED_2_5;
break;
case QEMU_PCI_EXP_LNK_5GT:
speed = PCIE_LINK_SPEED_5;
break;
case QEMU_PCI_EXP_LNK_8GT:
speed = PCIE_LINK_SPEED_8;
break;
case QEMU_PCI_EXP_LNK_16GT:
speed = PCIE_LINK_SPEED_16;
break;
default:
/* Unreachable */
abort();
}
visit_type_enum(v, name, &speed, prop->info->enum_table, errp);
}
static void set_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
Property *prop = opaque;
PCIExpLinkSpeed *p = object_field_prop_ptr(obj, prop);
int speed;
if (!visit_type_enum(v, name, &speed, prop->info->enum_table,
errp)) {
return;
}
switch (speed) {
case PCIE_LINK_SPEED_2_5:
*p = QEMU_PCI_EXP_LNK_2_5GT;
break;
case PCIE_LINK_SPEED_5:
*p = QEMU_PCI_EXP_LNK_5GT;
break;
case PCIE_LINK_SPEED_8:
*p = QEMU_PCI_EXP_LNK_8GT;
break;
case PCIE_LINK_SPEED_16:
*p = QEMU_PCI_EXP_LNK_16GT;
break;
default:
/* Unreachable */
abort();
}
}
const PropertyInfo qdev_prop_pcie_link_speed = {
.name = "PCIELinkSpeed",
.description = "2_5/5/8/16",
.enum_table = &PCIELinkSpeed_lookup,
.get = get_prop_pcielinkspeed,
.set = set_prop_pcielinkspeed,
.set_default_value = qdev_propinfo_set_default_value_enum,
};
/* --- PCIELinkWidth 1/2/4/8/12/16/32 -- */
static void get_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
Property *prop = opaque;
PCIExpLinkWidth *p = object_field_prop_ptr(obj, prop);
int width;
switch (*p) {
case QEMU_PCI_EXP_LNK_X1:
width = PCIE_LINK_WIDTH_1;
break;
case QEMU_PCI_EXP_LNK_X2:
width = PCIE_LINK_WIDTH_2;
break;
case QEMU_PCI_EXP_LNK_X4:
width = PCIE_LINK_WIDTH_4;
break;
case QEMU_PCI_EXP_LNK_X8:
width = PCIE_LINK_WIDTH_8;
break;
case QEMU_PCI_EXP_LNK_X12:
width = PCIE_LINK_WIDTH_12;
break;
case QEMU_PCI_EXP_LNK_X16:
width = PCIE_LINK_WIDTH_16;
break;
case QEMU_PCI_EXP_LNK_X32:
width = PCIE_LINK_WIDTH_32;
break;
default:
/* Unreachable */
abort();
}
visit_type_enum(v, name, &width, prop->info->enum_table, errp);
}
static void set_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
Property *prop = opaque;
PCIExpLinkWidth *p = object_field_prop_ptr(obj, prop);
int width;
if (!visit_type_enum(v, name, &width, prop->info->enum_table,
errp)) {
return;
}
switch (width) {
case PCIE_LINK_WIDTH_1:
*p = QEMU_PCI_EXP_LNK_X1;
break;
case PCIE_LINK_WIDTH_2:
*p = QEMU_PCI_EXP_LNK_X2;
break;
case PCIE_LINK_WIDTH_4:
*p = QEMU_PCI_EXP_LNK_X4;
break;
case PCIE_LINK_WIDTH_8:
*p = QEMU_PCI_EXP_LNK_X8;
break;
case PCIE_LINK_WIDTH_12:
*p = QEMU_PCI_EXP_LNK_X12;
break;
case PCIE_LINK_WIDTH_16:
*p = QEMU_PCI_EXP_LNK_X16;
break;
case PCIE_LINK_WIDTH_32:
*p = QEMU_PCI_EXP_LNK_X32;
break;
default:
/* Unreachable */
abort();
}
}
const PropertyInfo qdev_prop_pcie_link_width = {
.name = "PCIELinkWidth",
.description = "1/2/4/8/12/16/32",
.enum_table = &PCIELinkWidth_lookup,
.get = get_prop_pcielinkwidth,
.set = set_prop_pcielinkwidth,
.set_default_value = qdev_propinfo_set_default_value_enum,
};
/* --- UUID --- */
static void get_uuid(Object *obj, Visitor *v, const char *name, void *opaque,
Error **errp)
{
Property *prop = opaque;
QemuUUID *uuid = object_field_prop_ptr(obj, prop);
char buffer[UUID_STR_LEN];
char *p = buffer;
qemu_uuid_unparse(uuid, buffer);
visit_type_str(v, name, &p, errp);
}
#define UUID_VALUE_AUTO "auto"
static void set_uuid(Object *obj, Visitor *v, const char *name, void *opaque,
Error **errp)
{
Property *prop = opaque;
QemuUUID *uuid = object_field_prop_ptr(obj, prop);
char *str;
if (!visit_type_str(v, name, &str, errp)) {
return;
}
if (!strcmp(str, UUID_VALUE_AUTO)) {
qemu_uuid_generate(uuid);
} else if (qemu_uuid_parse(str, uuid) < 0) {
error_set_from_qdev_prop_error(errp, EINVAL, obj, name, str);
}
g_free(str);
}
static void set_default_uuid_auto(ObjectProperty *op, const Property *prop)
{
object_property_set_default_str(op, UUID_VALUE_AUTO);
}
const PropertyInfo qdev_prop_uuid = {
.name = "str",
.description = "UUID (aka GUID) or \"" UUID_VALUE_AUTO
"\" for random value (default)",
.get = get_uuid,
.set = set_uuid,
.set_default_value = set_default_uuid_auto,
};
/* --- s390 cpu entitlement policy --- */
QEMU_BUILD_BUG_ON(sizeof(CpuS390Entitlement) != sizeof(int));
const PropertyInfo qdev_prop_cpus390entitlement = {
.name = "CpuS390Entitlement",
.description = "low/medium (default)/high",
.enum_table = &CpuS390Entitlement_lookup,
.get = qdev_propinfo_get_enum,
.set = qdev_propinfo_set_enum,
.set_default_value = qdev_propinfo_set_default_value_enum,
};
/* --- IOThreadVirtQueueMappingList --- */
static void get_iothread_vq_mapping_list(Object *obj, Visitor *v,
const char *name, void *opaque, Error **errp)
{
IOThreadVirtQueueMappingList **prop_ptr =
object_field_prop_ptr(obj, opaque);
visit_type_IOThreadVirtQueueMappingList(v, name, prop_ptr, errp);
}
static void set_iothread_vq_mapping_list(Object *obj, Visitor *v,
const char *name, void *opaque, Error **errp)
{
IOThreadVirtQueueMappingList **prop_ptr =
object_field_prop_ptr(obj, opaque);
IOThreadVirtQueueMappingList *list;
if (!visit_type_IOThreadVirtQueueMappingList(v, name, &list, errp)) {
return;
}
qapi_free_IOThreadVirtQueueMappingList(*prop_ptr);
*prop_ptr = list;
}
static void release_iothread_vq_mapping_list(Object *obj,
const char *name, void *opaque)
{
IOThreadVirtQueueMappingList **prop_ptr =
object_field_prop_ptr(obj, opaque);
qapi_free_IOThreadVirtQueueMappingList(*prop_ptr);
*prop_ptr = NULL;
}
const PropertyInfo qdev_prop_iothread_vq_mapping_list = {
.name = "IOThreadVirtQueueMappingList",
.description = "IOThread virtqueue mapping list [{\"iothread\":\"<id>\", "
"\"vqs\":[1,2,3,...]},...]",
.get = get_iothread_vq_mapping_list,
.set = set_iothread_vq_mapping_list,
.release = release_iothread_vq_mapping_list,
};
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