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qemuBuildHostdevSCSICommandLine: Generate via JSON

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Since 'qemuBuildDeviceAddressProps' now also builds 'drive' addresses
the generator is way simpler and doesn't use any special fields.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2021-10-04 14:53:33 +02:00
parent 03ed14d2d4
commit 82d499c6c0
3 changed files with 28 additions and 41 deletions
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56
src/qemu/qemu_command.c
View File

@ -5079,44 +5079,29 @@ qemuBuildSCSIHostdevDrvStr(virDomainHostdevDef *dev)
return virBufferContentAndReset(&buf);
}
char *
qemuBuildSCSIHostdevDevStr(const virDomainDef *def,
virDomainHostdevDef *dev,
const char *backendAlias)
virJSONValue *
qemuBuildSCSIHostdevDevProps(const virDomainDef *def,
virDomainHostdevDef *dev,
const char *backendAlias)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
int model = -1;
const char *contAlias;
g_autoptr(virJSONValue) props = NULL;
model = qemuDomainFindSCSIControllerModel(def, dev->info);
if (model < 0)
if (virJSONValueObjectCreate(&props,
"s:driver", "scsi-generic",
NULL) < 0)
return NULL;
virBufferAddLit(&buf, "scsi-generic");
if (!(contAlias = virDomainControllerAliasFind(def, VIR_DOMAIN_CONTROLLER_TYPE_SCSI,
dev->info->addr.drive.controller)))
if (qemuBuildDeviceAddressProps(props, def, dev->info) < 0)
return NULL;
if (model == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSILOGIC) {
virBufferAsprintf(&buf, ",bus=%s.%d,scsi-id=%d",
contAlias,
dev->info->addr.drive.bus,
dev->info->addr.drive.unit);
} else {
virBufferAsprintf(&buf, ",bus=%s.0,channel=%d,scsi-id=%d,lun=%d",
contAlias,
dev->info->addr.drive.bus,
dev->info->addr.drive.target,
dev->info->addr.drive.unit);
}
if (virJSONValueObjectAdd(props,
"s:drive", backendAlias,
"s:id", dev->info->alias,
"p:bootindex", dev->info->bootIndex,
NULL) < 0)
return NULL;
virBufferAsprintf(&buf, ",drive=%s,id=%s", backendAlias, dev->info->alias);
if (dev->info->bootIndex)
virBufferAsprintf(&buf, ",bootindex=%u", dev->info->bootIndex);
return virBufferContentAndReset(&buf);
return g_steal_pointer(&props);
}
static int
@ -5604,7 +5589,7 @@ qemuBuildHostdevSCSICommandLine(virCommand *cmd,
virQEMUCaps *qemuCaps)
{
g_autoptr(qemuBlockStorageSourceAttachData) data = NULL;
g_autofree char *devstr = NULL;
g_autoptr(virJSONValue) devprops = NULL;
const char *backendAlias = NULL;
if (!(data = qemuBuildHostdevSCSIAttachPrepare(hostdev, &backendAlias, qemuCaps)))
@ -5613,10 +5598,11 @@ qemuBuildHostdevSCSICommandLine(virCommand *cmd,
if (qemuBuildBlockStorageSourceAttachDataCommandline(cmd, data, qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-device");
if (!(devstr = qemuBuildSCSIHostdevDevStr(def, hostdev, backendAlias)))
if (!(devprops = qemuBuildSCSIHostdevDevProps(def, hostdev, backendAlias)))
return -1;
if (qemuBuildDeviceCommandlineFromJSON(cmd, devprops, qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, devstr);
return 0;
}

7
src/qemu/qemu_command.h
View File

@ -182,9 +182,10 @@ qemuBuildUSBHostdevDevProps(const virDomainDef *def,
virDomainHostdevDef *dev,
virQEMUCaps *qemuCaps);
char *qemuBuildSCSIHostdevDevStr(const virDomainDef *def,
virDomainHostdevDef *dev,
const char *backendAlias);
virJSONValue *
qemuBuildSCSIHostdevDevProps(const virDomainDef *def,
virDomainHostdevDef *dev,
const char *backendAlias);
qemuBlockStorageSourceAttachData *
qemuBuildHostdevSCSIAttachPrepare(virDomainHostdevDef *hostdev,

6
src/qemu/qemu_hotplug.c
View File

@ -2639,7 +2639,7 @@ qemuDomainAttachHostSCSIDevice(virQEMUDriver *driver,
virErrorPtr orig_err;
g_autoptr(qemuBlockStorageSourceAttachData) data = NULL;
const char *backendalias = NULL;
g_autofree char *devstr = NULL;
g_autoptr(virJSONValue) devprops = NULL;
bool teardowncgroup = false;
bool teardownlabel = false;
bool teardowndevice = false;
@ -2683,7 +2683,7 @@ qemuDomainAttachHostSCSIDevice(virQEMUDriver *driver,
priv->qemuCaps)))
goto cleanup;
if (!(devstr = qemuBuildSCSIHostdevDevStr(vm->def, hostdev, backendalias)))
if (!(devprops = qemuBuildSCSIHostdevDevProps(vm->def, hostdev, backendalias)))
goto cleanup;
VIR_REALLOC_N(vm->def->hostdevs, vm->def->nhostdevs + 1);
@ -2693,7 +2693,7 @@ qemuDomainAttachHostSCSIDevice(virQEMUDriver *driver,
if (qemuBlockStorageSourceAttachApply(priv->mon, data) < 0)
goto exit_monitor;
if (qemuMonitorAddDevice(priv->mon, devstr) < 0)
if (qemuMonitorAddDeviceProps(priv->mon, &devprops) < 0)
goto exit_monitor;
if (qemuDomainObjExitMonitor(driver, vm) < 0)