Martin Polednik has uploaded a new change for review.
Change subject: hostdev: display directed-passthrough status in caps
......................................................................
hostdev: display directed-passthrough status in caps
Whether the underlying host supports directed passthrough can be
read via sysfs /sys/class/iommu, where support would be indicated
by pressence of dma remapping indicator - dmarX (where X >= 0).
This patch exposes this fact in caps via directedPassthrough key.
Change-Id: I159f49db4fdbfd347753b2c97c5f75b694ac9460
Signed-off-by: Martin Polednik <mpoled...@redhat.com>
---
M vdsm/caps.py
1 file changed, 6 insertions(+), 0 deletions(-)
git pull ssh://gerrit.ovirt.org:29418/vdsm refs/changes/01/37701/1
diff --git a/vdsm/caps.py b/vdsm/caps.py
index cb60e34..eee1032 100644
--- a/vdsm/caps.py
+++ b/vdsm/caps.py
@@ -596,6 +596,10 @@
return selinux
+def _getDirectedPassthrough():
+ return bool(len(os.listdir('/sys/class/iommu')))
+
+
def get():
targetArch = getTargetArch()
@@ -688,6 +692,8 @@
caps['liveMerge'] = str(getLiveMergeSupport()).lower()
caps['kdumpStatus'] = _getKdumpStatus()
+ caps['directedPassthrough'] = str(_getDirectedPassthrough())
+
return caps
--
To view, visit http://gerrit.ovirt.org/37701
To unsubscribe, visit http://gerrit.ovirt.org/settings
Gerrit-MessageType: newchange
Gerrit-Change-Id: I159f49db4fdbfd347753b2c97c5f75b694ac9460
Gerrit-PatchSet: 1
Gerrit-Project: vdsm
Gerrit-Branch: master
Gerrit-Owner: Martin Polednik <mpoled...@redhat.com>
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