Cpu: Add support for Power LE Architecture.

This adds support for PowerPC Little Endian architecture.,
and allows libvirt to spawn VMs based on 'ppc64le' architecture.
Signed-off-by: NPradipta Kr. Banerjee <bpradip@in.ibm.com>
Signed-off-by: NPrerna Saxena <prerna@linux.vnet.ibm.com>
Reviewed-by: NMichal Privoznik <mprivozn@redhat.com>

src/conf/domain_conf.c

@@ -10043,7 +10043,7 @@ virDomainVideoDefaultType(const virDomainDef *def)
             (STREQ(def->os.type, "xen") ||
              STREQ(def->os.type, "linux")))
             return VIR_DOMAIN_VIDEO_TYPE_XEN;
-        else if (def->os.arch == VIR_ARCH_PPC64)
+        else if ARCH_IS_PPC64(def->os.arch)
             return VIR_DOMAIN_VIDEO_TYPE_VGA;
         else
             return VIR_DOMAIN_VIDEO_TYPE_CIRRUS;

src/cpu/cpu_powerpc.c

@@ -38,7 +38,7 @@
 
 VIR_LOG_INIT("cpu.cpu_powerpc");
 
-static const virArch archs[] = { VIR_ARCH_PPC64 };
+static const virArch archs[] = { VIR_ARCH_PPC64, VIR_ARCH_PPC64LE };
 
 struct ppc_vendor {
     char *name;

src/qemu/qemu_capabilities.c

@@ -633,7 +633,7 @@ virQEMUCapsProbeCPUModels(virQEMUCapsPtr qemuCaps, uid_t runUid, gid_t runGid)
     if (qemuCaps->arch == VIR_ARCH_I686 ||
         qemuCaps->arch == VIR_ARCH_X86_64) {
         parse = virQEMUCapsParseX86Models;
-    } else if (qemuCaps->arch == VIR_ARCH_PPC64) {
+    } else if ARCH_IS_PPC64(qemuCaps->arch) {
         parse = virQEMUCapsParsePPCModels;
     } else {
         VIR_DEBUG("don't know how to parse %s CPU models",
@@ -2003,7 +2003,7 @@ bool virQEMUCapsHasPCIMultiBus(virQEMUCapsPtr qemuCaps,
         return true;
 
     if (def->os.arch == VIR_ARCH_PPC ||
-        def->os.arch == VIR_ARCH_PPC64) {
+        ARCH_IS_PPC64(def->os.arch)) {
         /*
          * Usage of pci.0 naming:
          *
@@ -3575,7 +3575,7 @@ virQEMUCapsSupportsChardev(virDomainDefPtr def,
         !virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE))
         return false;
 
-    if ((def->os.arch == VIR_ARCH_PPC) || (def->os.arch == VIR_ARCH_PPC64)) {
+    if ((def->os.arch == VIR_ARCH_PPC) || ARCH_IS_PPC64(def->os.arch)) {
         /* only pseries need -device spapr-vty with -chardev */
         return (chr->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL &&
                 chr->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_SPAPRVIO);

src/qemu/qemu_command.c

@@ -714,7 +714,7 @@ qemuSetSCSIControllerModel(virDomainDefPtr def,
             return -1;
         }
     } else {
-        if ((def->os.arch == VIR_ARCH_PPC64) &&
+        if (ARCH_IS_PPC64(def->os.arch) &&
             STRPREFIX(def->os.machine, "pseries")) {
             *model = VIR_DOMAIN_CONTROLLER_MODEL_SCSI_IBMVSCSI;
         } else if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_SCSI_LSI)) {
@@ -1265,7 +1265,7 @@ int qemuDomainAssignSpaprVIOAddresses(virDomainDefPtr def,
 
     for (i = 0; i < def->nserials; i++) {
         if (def->serials[i]->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL &&
-            (def->os.arch == VIR_ARCH_PPC64) &&
+            ARCH_IS_PPC64(def->os.arch) &&
             STRPREFIX(def->os.machine, "pseries"))
             def->serials[i]->info.type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_SPAPRVIO;
         if (qemuAssignSpaprVIOAddress(def, &def->serials[i]->info,
@@ -1274,7 +1274,7 @@ int qemuDomainAssignSpaprVIOAddresses(virDomainDefPtr def,
     }
 
     if (def->nvram) {
-        if (def->os.arch == VIR_ARCH_PPC64 &&
+        if (ARCH_IS_PPC64(def->os.arch) &&
             STRPREFIX(def->os.machine, "pseries"))
             def->nvram->info.type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_SPAPRVIO;
         if (qemuAssignSpaprVIOAddress(def, &def->nvram->info,
@@ -4200,7 +4200,7 @@ qemuBuildUSBControllerDevStr(virDomainDefPtr domainDef,
     model = def->model;
 
     if (model == -1) {
-        if (domainDef->os.arch == VIR_ARCH_PPC64)
+        if ARCH_IS_PPC64(domainDef->os.arch)
             model = VIR_DOMAIN_CONTROLLER_MODEL_USB_PCI_OHCI;
         else
             model = VIR_DOMAIN_CONTROLLER_MODEL_USB_PIIX3_UHCI;
@@ -8572,7 +8572,7 @@ qemuBuildCommandLine(virConnectPtr conn,
                            !qemuDomainMachineIsQ35(def) &&
                            (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PIIX3_USB_UHCI) ||
                             (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PCI_OHCI) &&
-                             def->os.arch == VIR_ARCH_PPC64))) {
+                             ARCH_IS_PPC64(def->os.arch)))) {
                     if (usblegacy) {
                         virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                                        _("Multiple legacy USB controllers are "
@@ -9770,7 +9770,7 @@ qemuBuildCommandLine(virConnectPtr conn,
     }
 
     if (def->nvram) {
-        if (def->os.arch == VIR_ARCH_PPC64 &&
+        if (ARCH_IS_PPC64(def->os.arch) &&
             STRPREFIX(def->os.machine, "pseries")) {
             if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_NVRAM)) {
                 virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
@@ -9893,7 +9893,7 @@ qemuBuildSerialChrDeviceStr(char **deviceStr,
 {
     virBuffer cmd = VIR_BUFFER_INITIALIZER;
 
-    if ((arch == VIR_ARCH_PPC64) && STRPREFIX(machine, "pseries")) {
+    if (ARCH_IS_PPC64(arch) && STRPREFIX(machine, "pseries")) {
         if (serial->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL &&
             serial->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_SPAPRVIO) {
             virBufferAsprintf(&cmd, "spapr-vty,chardev=char%s",
@@ -10315,7 +10315,7 @@ qemuParseCommandLineDisk(virDomainXMLOptionPtr xmlopt,
     if (VIR_ALLOC(def->src) < 0)
         goto error;
 
-    if (((dom->os.arch == VIR_ARCH_PPC64) &&
+    if ((ARCH_IS_PPC64(dom->os.arch) &&
         dom->os.machine && STRPREFIX(dom->os.machine, "pseries")))
         def->bus = VIR_DOMAIN_DISK_BUS_SCSI;
     else
@@ -10408,7 +10408,7 @@ qemuParseCommandLineDisk(virDomainXMLOptionPtr xmlopt,
         } else if (STREQ(keywords[i], "if")) {
             if (STREQ(values[i], "ide")) {
                 def->bus = VIR_DOMAIN_DISK_BUS_IDE;
-                if (((dom->os.arch == VIR_ARCH_PPC64) &&
+                if ((ARCH_IS_PPC64(dom->os.arch) &&
                      dom->os.machine && STRPREFIX(dom->os.machine, "pseries"))) {
                     virReportError(VIR_ERR_INTERNAL_ERROR,
                                    _("pseries systems do not support ide devices '%s'"), val);
@@ -11653,7 +11653,7 @@ qemuParseCommandLine(virCapsPtr qemuCaps,
             }
             if (STREQ(arg, "-cdrom")) {
                 disk->device = VIR_DOMAIN_DISK_DEVICE_CDROM;
-                if (((def->os.arch == VIR_ARCH_PPC64) &&
+                if ((ARCH_IS_PPC64(def->os.arch) &&
                     def->os.machine && STRPREFIX(def->os.machine, "pseries")))
                     disk->bus = VIR_DOMAIN_DISK_BUS_SCSI;
                 if (VIR_STRDUP(disk->dst, "hdc") < 0)
@@ -11669,7 +11669,7 @@ 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) &&
+                   if ((ARCH_IS_PPC64(def->os.arch) &&
                        def->os.machine && STRPREFIX(def->os.machine, "pseries")))
                        disk->bus = VIR_DOMAIN_DISK_BUS_SCSI;
                 }

src/qemu/qemu_domain.c

@@ -980,6 +980,7 @@ qemuDomainDefPostParse(virDomainDefPtr def,
        break;
 
     case VIR_ARCH_PPC64:
+    case VIR_ARCH_PPC64LE:
         addPCIRoot = true;
         addDefaultUSBKBD = true;
         addDefaultUSBMouse = true;

src/util/virarch.h

@@ -79,6 +79,9 @@ typedef enum {
                              (arch) == VIR_ARCH_PPC64LE ||\
                              (arch) == VIR_ARCH_PPCEMB)
 
+# define ARCH_IS_PPC64(arch)  ((arch) == VIR_ARCH_PPC64 ||\
+                               (arch) == VIR_ARCH_PPC64LE)
+
 # define ARCH_IS_ARM(arch)  ((arch) == VIR_ARCH_ARMV6L ||\
                              (arch) == VIR_ARCH_ARMV7L ||\
                              (arch) == VIR_ARCH_ARMV7B ||\