On 11/21/2013 03:06 PM, Shivaprasad G Bhat wrote:
> From: Shivaprasad G Bhat <shivaprasadbhat@xxxxxxxxx>
>
> The bus type IDE being enum Zero, the bus type on pseries system appears as IDE for all the -hda/-cdrom and for disk drives with if="none" type. Pseries platform needs this to appear as SCSI instead of IDE. The ide being not supported, the explicit requests for ide devices will return an error.
>
> Signed-off-by: Shivaprasad G Bhat <sbhat@xxxxxxxxxxxxxxxxxx>
> ---
> src/qemu/qemu_command.c | 66 +++++++++++++++++++-
> tests/qemuargv2xmltest.c | 1
> .../qemuxml2argv-pseries-disk.args | 5 ++
> .../qemuxml2argvdata/qemuxml2argv-pseries-disk.xml | 40 ++++++++++++
> 4 files changed, 108 insertions(+), 4 deletions(-)
> create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-pseries-disk.args
> create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-pseries-disk.xml
>
> diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
> index 8dc7e43..21b5108 100644
> --- a/src/qemu/qemu_command.c
> +++ b/src/qemu/qemu_command.c
> @@ -10032,6 +10032,7 @@ error:
> static virDomainDiskDefPtr
> qemuParseCommandLineDisk(virDomainXMLOptionPtr xmlopt,
> const char *val,
> + virDomainDefPtr dom,
> int nvirtiodisk,
> bool old_style_ceph_args)
> {
> @@ -10055,7 +10056,11 @@ qemuParseCommandLineDisk(virDomainXMLOptionPtr xmlopt,
> if (VIR_ALLOC(def) < 0)
> goto cleanup;
>
> - def->bus = VIR_DOMAIN_DISK_BUS_IDE;
> + if (((dom->os.arch == VIR_ARCH_PPC64) &&
> + dom->os.machine && STREQ(dom->os.machine, "pseries")))
> + def->bus = VIR_DOMAIN_DISK_BUS_SCSI;
> + else
> + def->bus = VIR_DOMAIN_DISK_BUS_IDE;
> def->device = VIR_DOMAIN_DISK_DEVICE_DISK;
> def->type = VIR_DOMAIN_DISK_TYPE_FILE;
>
> @@ -10140,9 +10145,15 @@ qemuParseCommandLineDisk(virDomainXMLOptionPtr xmlopt,
> def->type = VIR_DOMAIN_DISK_TYPE_FILE;
> }
> } else if (STREQ(keywords[i], "if")) {
> - if (STREQ(values[i], "ide"))
> + if (STREQ(values[i], "ide")) {
> def->bus = VIR_DOMAIN_DISK_BUS_IDE;
> - else if (STREQ(values[i], "scsi"))
> + if (((dom->os.arch == VIR_ARCH_PPC64) &&
> + dom->os.machine && STREQ(dom->os.machine, "pseries"))) {
> + virReportError(VIR_ERR_INTERNAL_ERROR,
> + _("pseries systems do not support ide devices '%s'"), val);
> + goto error;
> + }
> + } else if (STREQ(values[i], "scsi"))
> def->bus = VIR_DOMAIN_DISK_BUS_SCSI;
> else if (STREQ(values[i], "virtio"))
> def->bus = VIR_DOMAIN_DISK_BUS_VIRTIO;
> @@ -11368,6 +11379,9 @@ qemuParseCommandLine(virCapsPtr qemuCaps,
> disk->type = VIR_DOMAIN_DISK_TYPE_FILE;
> if (STREQ(arg, "-cdrom")) {
> disk->device = VIR_DOMAIN_DISK_DEVICE_CDROM;
> + if (((def->os.arch == VIR_ARCH_PPC64) &&
> + def->os.machine && STREQ(def->os.machine, "pseries")))
> + disk->bus = VIR_DOMAIN_DISK_BUS_SCSI;
> if (VIR_STRDUP(disk->dst, "hdc") < 0)
> goto error;
> disk->readonly = true;
> @@ -11381,6 +11395,9 @@ qemuParseCommandLine(virCapsPtr qemuCaps,
> disk->bus = VIR_DOMAIN_DISK_BUS_IDE;
> else
> disk->bus = VIR_DOMAIN_DISK_BUS_SCSI;
> + if (((def->os.arch == VIR_ARCH_PPC64) &&
> + def->os.machine && STREQ(def->os.machine, "pseries")))
> + disk->bus = VIR_DOMAIN_DISK_BUS_SCSI;
> }
> if (VIR_STRDUP(disk->dst, arg + 1) < 0)
> goto error;
> @@ -11672,7 +11689,7 @@ qemuParseCommandLine(virCapsPtr qemuCaps,
> }
> } else if (STREQ(arg, "-drive")) {
> WANT_VALUE();
> - if (!(disk = qemuParseCommandLineDisk(xmlopt, val,
> + if (!(disk = qemuParseCommandLineDisk(xmlopt, val, def,
> nvirtiodisk,
> ceph_args != NULL)))
> goto error;
> @@ -11858,6 +11875,47 @@ qemuParseCommandLine(virCapsPtr qemuCaps,
> }
> } else if (STREQ(arg, "-S")) {
> /* ignore, always added by libvirt */
> + } else if (STREQ(arg, "-device")) {
> + /* something we can't fully parse. Check if supported and
> + * add it to the qemu namespace
> + * cmdline/environment advanced options and hope for the best
> + */
> + bool unsupported = false;
> + WANT_VALUE()
> +
> + if ((def->os.arch == VIR_ARCH_PPC64) &&
> + def->os.machine && STREQ(def->os.machine, "pseries")) {
> + int nkws;
> + char **kws;
> + char **vals;
> + size_t j;
> +
> + if (!qemuParseKeywords(val, &kws, &vals, &nkws, 1)) {
> + for (j = 0; j < nkws; j++) {
> + if (STREQLEN(kws[j], "ide", 3) ||
> + (STREQ(kws[j], "if") && vals[j] &&
> + STREQ(vals[j], "ide"))) {
> + virReportError(VIR_ERR_INTERNAL_ERROR,
> + _("pseries systems do not support ide devices '%s'"), val);
> + unsupported = true;
> + break;
> + }
> + }
> + for (j = 0; j < nkws; j++) {
> + VIR_FREE(kws[j]);
> + VIR_FREE(vals[j]);
> + }
> + VIR_FREE(kws);
> + VIR_FREE(vals);
> + }
> + }
> +
> + if (unsupported || VIR_REALLOC_N(cmd->args, cmd->num_args+2) < 0)
> + goto error;
> + if (VIR_STRDUP(cmd->args[cmd->num_args++], arg) < 0)
> + goto error;
> + if (VIR_STRDUP(cmd->args[cmd->num_args++], val) < 0)
> + goto error;
This -device handling chunk should at least be a separate patch and have a
test case that exercises it. But I don't know if that's how we want to handle
-device conversions, just turning them into qemu commandline passthrough bits,
but actually learning to parse -device would be a pretty massive undertaking.
> } else {
> /* something we can't yet parse. Add it to the qemu namespace
> * cmdline/environment advanced options and hope for the best
> diff --git a/tests/qemuargv2xmltest.c b/tests/qemuargv2xmltest.c
> index 6dd8bb0..0bf4c37 100644
> --- a/tests/qemuargv2xmltest.c
> +++ b/tests/qemuargv2xmltest.c
> @@ -249,6 +249,7 @@ mymain(void)
> DO_TEST("hyperv");
>
> DO_TEST("pseries-nvram");
> + DO_TEST("pseries-disk");
>
> DO_TEST("nosharepages");
>
> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pseries-disk.args b/tests/qemuxml2argvdata/qemuxml2argv-pseries-disk.args
> new file mode 100644
> index 0000000..5fc0938
> --- /dev/null
> +++ b/tests/qemuxml2argvdata/qemuxml2argv-pseries-disk.args
> @@ -0,0 +1,5 @@
> +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \
> +/usr/bin/qemu-system-ppc64 \
> +-S -M pseries -m 512 -smp 1 \
> +-no-acpi -boot c -usb \
> +-boot c -hda /dev/HostVG/QEMUGuest1 -cdrom /root/boot.iso
Does -hda actually create a scsi disk on pseries? Interesting.
> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pseries-disk.xml b/tests/qemuxml2argvdata/qemuxml2argv-pseries-disk.xml
> new file mode 100644
> index 0000000..dbbd6aa
> --- /dev/null
> +++ b/tests/qemuxml2argvdata/qemuxml2argv-pseries-disk.xml
> @@ -0,0 +1,40 @@
> +<domain type='qemu'>
> + <name>QEMUGuest1</name>
> + <uuid>87eedafe-eedc-4336-8130-ed9fe5dc90c8</uuid>
> + <memory unit='KiB'>524288</memory>
> + <currentMemory unit='KiB'>524288</currentMemory>
> + <vcpu placement='static'>1</vcpu>
> + <os>
> + <type arch='ppc64' machine='pseries'>hvm</type>
> + <boot dev='hd'/>
> + </os>
> + <clock offset='utc'/>
> + <on_poweroff>destroy</on_poweroff>
> + <on_reboot>restart</on_reboot>
> + <on_crash>destroy</on_crash>
> + <devices>
> + <emulator>/usr/bin/qemu-system-ppc64</emulator>
> + <disk type='block' device='disk'>
> + <driver name='qemu' type='raw'/>
> + <source dev='/dev/HostVG/QEMUGuest1'/>
> + <target dev='hda' bus='scsi'/>
> + <address type='drive' controller='0' bus='0' target='0' unit='0'/>
> + </disk>
> + <disk type='file' device='cdrom'>
> + <driver name='qemu' type='raw'/>
> + <source file='/root/boot.iso'/>
> + <target dev='hdc' bus='scsi'/>
> + <readonly/>
> + <address type='drive' controller='0' bus='0' target='0' unit='2'/>
> + </disk>
> + <controller type='usb' index='0'/>
> + <controller type='scsi' index='0'/>
> + <controller type='pci' index='0' model='pci-root'/>
> + <input type='mouse' bus='ps2'/>
> + <graphics type='sdl'/>
> + <video>
> + <model type='cirrus' vram='9216' heads='1'/>
> + </video>
> + <memballoon model='virtio'/>
> + </devices>
> +</domain>
>
Does this XML actually work if you 'virsh define' it? I'd think libvirt would
complain about target='hda' with bus='scsi' but I didn't confirm.
- Cole
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