Merge branch 'devel-2.5'

[ganeti-local] / lib / constants.py

diff --git a/lib/constants.py b/lib/constants.py
index fd9cc7c..2b92284 100644 (file)
--- a/lib/constants.py
+++ b/lib/constants.py
@@ -99,6 +99,27 @@ CONFD_GROUP = _autoconf.CONFD_GROUP
 NODED_USER = _autoconf.NODED_USER
 NODED_GROUP = _autoconf.NODED_GROUP
 
+# cpu pinning separators and constants
+CPU_PINNING_SEP = ":"
+CPU_PINNING_ALL = "all"
+# internal representation of "all"
+CPU_PINNING_ALL_VAL = -1
+# one "all" entry in a CPU list means CPU pinning is off
+CPU_PINNING_OFF = [CPU_PINNING_ALL_VAL]
+
+# A Xen-specific implementation detail - there is no way to actually say
+# "use any cpu for pinning" in a Xen configuration file, as opposed to the
+# command line, where you can say "xm vcpu-pin <domain> <vcpu> all".
+# The workaround used in Xen is "0-63" (see source code function
+# xm_vcpu_pin in <xen-source>/tools/python/xen/xm/main.py).
+# To support future changes, the following constant is treated as a
+# blackbox string that simply means use-any-cpu-for-pinning-under-xen.
+CPU_PINNING_ALL_XEN = "0-63"
+
+# A KVM-specific implementation detail - the following value is used
+# to set CPU affinity to all processors (#0 through #31), per taskset
+# man page.
+CPU_PINNING_ALL_KVM = 0xFFFFFFFF
 
 # Wipe
 DD_CMD = "dd"
@@ -776,6 +797,27 @@ HVS_PARAMETER_TYPES = {
 
 HVS_PARAMETERS = frozenset(HVS_PARAMETER_TYPES.keys())
 
+# Migration statuses
+HV_MIGRATION_COMPLETED = "completed"
+HV_MIGRATION_ACTIVE = "active"
+HV_MIGRATION_FAILED = "failed"
+HV_MIGRATION_CANCELLED = "cancelled"
+
+HV_MIGRATION_VALID_STATUSES = frozenset([
+  HV_MIGRATION_COMPLETED,
+  HV_MIGRATION_ACTIVE,
+  HV_MIGRATION_FAILED,
+  HV_MIGRATION_CANCELLED,
+  ])
+
+HV_MIGRATION_FAILED_STATUSES = frozenset([
+  HV_MIGRATION_FAILED,
+  HV_MIGRATION_CANCELLED,
+  ])
+
+# KVM-specific statuses
+HV_KVM_MIGRATION_VALID_STATUSES = HV_MIGRATION_VALID_STATUSES
+
 # Node info keys
 HV_NODEINFO_KEY_VERSION = "hv_version"
 
@@ -1333,6 +1375,7 @@ HVC_DEFAULTS = {
     HV_MIGRATION_MODE: HT_MIGRATION_LIVE,
     HV_BLOCKDEV_PREFIX: "sd",
     HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
+    HV_CPU_MASK: CPU_PINNING_ALL,
     },
   HT_XEN_HVM: {
     HV_BOOT_ORDER: "cd",
@@ -1350,6 +1393,7 @@ HVC_DEFAULTS = {
     HV_USE_LOCALTIME: False,
     HV_BLOCKDEV_PREFIX: "hd",
     HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
+    HV_CPU_MASK: CPU_PINNING_ALL,
     },
   HT_KVM: {
     HV_KERNEL_PATH: "/boot/vmlinuz-2.6-kvmU",
@@ -1396,6 +1440,7 @@ HVC_DEFAULTS = {
     HV_KVM_USE_CHROOT: False,
     HV_MEM_PATH: "",
     HV_REBOOT_BEHAVIOR: INSTANCE_REBOOT_ALLOWED,
+    HV_CPU_MASK: CPU_PINNING_ALL,
     },
   HT_FAKE: {
     },