From: Dominik Csapak <d.csapak@proxmox.com>
Date: Fri, 16 Nov 2018 15:17:49 +0000 (+0100)
Subject: SysFSTools: implement IOMMU check
X-Git-Url: https://git.proxmox.com/?p=pve-common.git;a=commitdiff_plain;h=a923104f23b61c315cc355f25f4bef4528c45f49;ds=sidebyside

SysFSTools: implement IOMMU check

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---

diff --git a/src/PVE/SysFSTools.pm b/src/PVE/SysFSTools.pm
index 660f94b..e4bc328 100644
--- a/src/PVE/SysFSTools.pm
+++ b/src/PVE/SysFSTools.pm
@@ -33,12 +33,8 @@ sub lspci {
 }
 
 sub check_iommu_support{
-    #fixme : need to check IOMMU support
-    #http://www.linux-kvm.org/page/How_to_assign_devices_with_VT-d_in_KVM
-
-    my $iommu=1;
-    return $iommu;
-
+    # iommu support if there is anything in /sys/class/iommu besides . or ..
+    return PVE::Tools::dir_glob_regex('/sys/class/iommu/', "[^\.].*");
 }
 
 sub file_write {