diff options
| -rw-r--r-- | tools/python/xen/xend/XendCheckpoint.py | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/tools/python/xen/xend/XendCheckpoint.py b/tools/python/xen/xend/XendCheckpoint.py index 10ed67f807..4c68fb38af 100644 --- a/tools/python/xen/xend/XendCheckpoint.py +++ b/tools/python/xen/xend/XendCheckpoint.py @@ -277,7 +277,15 @@ def restore(xd, fd, dominfo = None, paused = False, relocating = False): # set memory limit xc.domain_setmaxmem(dominfo.getDomid(), maxmem) - balloon.free(memory + shadow, dominfo) + vtd_mem = 0 + info = xc.physinfo() + if 'hvm_directio' in info['virt_caps']: + # Reserve 1 page per MiB of RAM for separate VT-d page table. + vtd_mem = 4 * (dominfo.info['memory_static_max'] / 1024 / 1024) + # Round vtd_mem up to a multiple of a MiB. + vtd_mem = ((vtd_mem + 1023) / 1024) * 1024 + + balloon.free(memory + shadow + vtd_mem, dominfo) shadow_cur = xc.shadow_mem_control(dominfo.getDomid(), shadow / 1024) dominfo.info['shadow_memory'] = shadow_cur |