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core: add QubesVm.get_prefmem (#788)

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Expose 'prefmem' property used by qmemman.
This commit is contained in:
Marek Marczykowski-Górecki 2014-03-31 03:41:33 +02:00
parent 9e7b8a63bc
commit 72d277c56b
1 changed files with 12 additions and 0 deletions
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12
core-modules/000QubesVm.py
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@ -34,6 +34,8 @@ import time
import uuid import uuid
import xml.parsers.expat import xml.parsers.expat
import xen.lowlevel.xc import xen.lowlevel.xc
from qubes import qmemman
from qubes import qmemman_algo
from qubes.qubes import xs,dry_run,xc,xl_ctx from qubes.qubes import xs,dry_run,xc,xl_ctx
from qubes.qubes import register_qubes_vm_class from qubes.qubes import register_qubes_vm_class
@ -651,6 +653,16 @@ class QubesVm(object):
else: else:
return 0 return 0
def get_prefmem(self):
untrusted_meminfo_key = xs.read('', '/local/domain/%s/memory/meminfo'
% self.xid)
if untrusted_meminfo_key is None or untrusted_meminfo_key == '':
return 0
domain = qmemman.DomainState(self.xid)
qmemman_algo.refresh_meminfo_for_domain(domain, untrusted_meminfo_key)
domain.memory_maximum = self.get_mem_static_max()*1024
return qmemman_algo.prefmem(domain)/1024
def get_per_cpu_time(self): def get_per_cpu_time(self):
if dry_run: if dry_run:
import random import random