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qemuBuildControllerSCSIDevStr: Format via JSON properties

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Internally format the SCSI controller properties into JSON, but convert
it back to a string so that we for now change just the SCSI controller.

The change in tests is expected as the 'reg' field for a spapr-vio
address is expected to be a number:

  $ qemu-system-ppc64 -device spapr-vscsi,help
  spapr-vscsi options:
    reg=<uint32>           -  (default: 4294967295)

The hand-rolled generator used hex representation but that will not be
possible on the monitor via JSON.

The properties of 'virtio-scsi' have following types according to QEMU:

  iothread=<link<iothread>>
  num_queues=<uint32>    -  (default: 4294967295)
  cmd_per_lun=<uint32>   -  (default: 128)
  max_sectors=<uint32>   -  (default: 65535)
  ioeventfd=<bool>       - on/off (default: true)

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 22:53:48 +02:00
parent c3b55a576b
commit 626df95907
5 changed files with 49 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

81
src/qemu/qemu_command.c
View File

@ -1311,17 +1311,6 @@ qemuBuildRomProps(virJSONValue *props,
}
static int
qemuBuildIoEventFdStr(virBuffer *buf,
virTristateSwitch use,
virQEMUCaps *qemuCaps G_GNUC_UNUSED)
{
if (use)
virBufferAsprintf(buf, ",ioeventfd=%s",
virTristateSwitchTypeToString(use));
return 0;
}
/**
* qemuBuildSecretInfoProps:
* @secinfo: pointer to the secret info object
@ -2875,40 +2864,37 @@ qemuBuildUSBControllerDevStr(const virDomainDef *domainDef,
}
static char *
qemuBuildControllerSCSIDevStr(const virDomainDef *domainDef,
virDomainControllerDef *def,
virQEMUCaps *qemuCaps)
static virJSONValue *
qemuBuildControllerSCSIDevProps(const virDomainDef *domainDef,
virDomainControllerDef *def,
virQEMUCaps *qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
g_autoptr(virJSONValue) props = NULL;
g_autofree char *iothread = NULL;
const char *driver = NULL;
switch ((virDomainControllerModelSCSI) def->model) {
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_TRANSITIONAL:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_NON_TRANSITIONAL:
if (qemuBuildVirtioDevStr(&buf, qemuCaps, VIR_DOMAIN_DEVICE_CONTROLLER, def) < 0) {
if (!(props = qemuBuildVirtioDevProps(VIR_DOMAIN_DEVICE_CONTROLLER, def,
qemuCaps)))
return NULL;
}
if (def->iothread) {
virBufferAsprintf(&buf, ",iothread=iothread%u",
def->iothread);
}
if (def->iothread > 0)
iothread = g_strdup_printf("iothread%u", def->iothread);
virBufferAsprintf(&buf, ",id=%s", def->info.alias);
if (def->queues)
virBufferAsprintf(&buf, ",num_queues=%u", def->queues);
if (def->cmd_per_lun)
virBufferAsprintf(&buf, ",cmd_per_lun=%u", def->cmd_per_lun);
if (def->max_sectors)
virBufferAsprintf(&buf, ",max_sectors=%u", def->max_sectors);
qemuBuildIoEventFdStr(&buf, def->ioeventfd, qemuCaps);
if (virJSONValueObjectAdd(props,
"S:iothread", iothread,
"s:id", def->info.alias,
"p:num_queues", def->queues,
"p:cmd_per_lun", def->cmd_per_lun,
"p:max_sectors", def->max_sectors,
"T:ioeventfd", def->ioeventfd,
NULL) < 0)
return NULL;
break;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSILOGIC:
driver = "lsi";
break;
@ -2945,13 +2931,18 @@ qemuBuildControllerSCSIDevStr(const virDomainDef *domainDef,
return NULL;
}
if (driver)
virBufferAsprintf(&buf, "%s,id=%s", driver, def->info.alias);
if (driver) {
if (virJSONValueObjectCreate(&props,
"s:driver", driver,
"s:id", def->info.alias,
NULL) < 0)
return NULL;
}
if (qemuBuildDeviceAddressStr(&buf, domainDef, &def->info) < 0)
if (qemuBuildDeviceAddressProps(props, domainDef, &def->info) < 0)
return NULL;
return virBufferContentAndReset(&buf);
return g_steal_pointer(&props);
}
@ -3067,13 +3058,25 @@ qemuBuildControllerDevStr(const virDomainDef *domainDef,
char **devstr)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
g_autoptr(virJSONValue) props = NULL;
const char *driver = NULL;
*devstr = NULL;
switch ((virDomainControllerType)def->type) {
case VIR_DOMAIN_CONTROLLER_TYPE_SCSI:
if (!(*devstr = qemuBuildControllerSCSIDevStr(domainDef, def, qemuCaps)))
if (!(props = qemuBuildControllerSCSIDevProps(domainDef, def, qemuCaps)))
return -1;
driver = virJSONValueObjectGetString(props, "driver");
virBufferAsprintf(&buf, "%s,", driver);
if (virQEMUBuildCommandLineJSON(props, &buf, "driver", NULL) < 0)
return -1;
*devstr = virBufferContentAndReset(&buf);
return 0;
case VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL:

2
tests/qemuxml2argvdata/disk-scsi.x86_64-latest.args
View File

@ -30,7 +30,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
-device lsi,id=scsi0,bus=pci.0,addr=0x2 \
-device megasas,id=scsi1,bus=pci.0,addr=0x3 \
-device mptsas1068,id=scsi2,bus=pci.0,addr=0x4 \
-device spapr-vscsi,id=scsi3,reg=0x00002000 \
-device spapr-vscsi,id=scsi3,reg=8192 \
-device pvscsi,id=scsi4,bus=pci.0,addr=0x5 \
-blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-6-storage","auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-6-format","read-only":false,"driver":"raw","file":"libvirt-6-storage"}' \

4
tests/qemuxml2argvdata/pseries-vio-user-assigned.args
View File

@ -24,8 +24,8 @@ QEMU_AUDIO_DRV=none \
-rtc base=utc \
-no-shutdown \
-boot strict=on \
-device spapr-vscsi,id=scsi0,reg=0x00002000 \
-device spapr-vscsi,id=scsi1,reg=0x30000000 \
-device spapr-vscsi,id=scsi0,reg=8192 \
-device spapr-vscsi,id=scsi1,reg=805306368 \
-usb \
-drive file=/tmp/scsidisk.img,format=raw,if=none,id=drive-scsi1-0-0-0 \
-device scsi-hd,bus=scsi1.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi1-0-0-0,id=scsi1-0-0-0,bootindex=1 \

4
tests/qemuxml2argvdata/pseries-vio.args
View File

@ -24,8 +24,8 @@ QEMU_AUDIO_DRV=none \
-rtc base=utc \
-no-shutdown \
-boot strict=on \
-device spapr-vscsi,id=scsi0,reg=0x00002000 \
-device spapr-vscsi,id=scsi1,reg=0x00003000 \
-device spapr-vscsi,id=scsi0,reg=8192 \
-device spapr-vscsi,id=scsi1,reg=12288 \
-usb \
-drive file=/tmp/scsidisk.img,format=raw,if=none,id=drive-scsi1-0-0-0 \
-device scsi-hd,bus=scsi1.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi1-0-0-0,id=scsi1-0-0-0,bootindex=1 \

4
tests/qemuxml2argvdata/tpm-emulator-spapr.ppc64-latest.args
View File

@ -26,8 +26,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-TPM-VM/.config \
-no-shutdown \
-boot menu=on,strict=on \
-device pci-ohci,id=usb,bus=pci.0,addr=0x1 \
-device spapr-vscsi,id=scsi0,reg=0x00002000 \
-device spapr-vscsi,id=scsi1,reg=0x00003000 \
-device spapr-vscsi,id=scsi0,reg=8192 \
-device spapr-vscsi,id=scsi1,reg=12288 \
-blockdev '{"driver":"file","filename":"/tmp/scsidisk.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
-device scsi-hd,bus=scsi1.0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi1-0-0-0,drive=libvirt-1-format,id=scsi1-0-0-0,bootindex=1 \