diff options
Diffstat (limited to 'tools/python/xen/xend/image.py')
| -rw-r--r-- | tools/python/xen/xend/image.py | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/python/xen/xend/image.py b/tools/python/xen/xend/image.py index 64fb810944..268462c581 100644 --- a/tools/python/xen/xend/image.py +++ b/tools/python/xen/xend/image.py @@ -153,6 +153,12 @@ class ImageHandler: mem_kb += 4*1024; return mem_kb + def getDomainShadowMemory(self, mem_kb): + """@return The minimum shadow memory required, in KiB, for a domain + with mem_kb KiB of RAM.""" + # PV domains don't need any shadow memory + return 0 + def buildDomain(self): """Build the domain. Define in subclass.""" raise NotImplementedError() @@ -364,6 +370,17 @@ class HVMImageHandler(ImageHandler): extra_pages = int( math.ceil( extra_mb*1024 / page_kb )) return mem_kb + extra_pages * page_kb + def getDomainShadowMemory(self, mem_kb): + """@return The minimum shadow memory required, in KiB, for a domain + with mem_kb KiB of RAM.""" + if os.uname()[4] in ('ia64', 'ppc64'): + # Explicit shadow memory is not a concept + return 0 + else: + # 1MB per vcpu plus 4Kib/Mib of RAM. This is higher than + # the minimum that Xen would allocate if no value were given. + return 1024 * self.vm.getVCpuCount() + mem_kb / 256 + def register_shutdown_watch(self): """ add xen store watch on control/shutdown """ self.shutdownWatch = xswatch(self.vm.dompath + "/control/shutdown", \ |