svn commit: r349988 - head/sys/x86/iommu
Konstantin Belousov
kib at FreeBSD.org
Sun Jul 14 21:08:54 UTC 2019
Author: kib
Date: Sun Jul 14 21:08:54 2019
New Revision: 349988
URL: https://svnweb.freebsd.org/changeset/base/349988
Log:
PR: 239143
Reported and tested by: Wes Maag <jwmaag at gmail.com>
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Modified:
head/sys/x86/iommu/intel_drv.c
Modified: head/sys/x86/iommu/intel_drv.c
==============================================================================
--- head/sys/x86/iommu/intel_drv.c Sun Jul 14 16:05:47 2019 (r349987)
+++ head/sys/x86/iommu/intel_drv.c Sun Jul 14 21:08:54 2019 (r349988)
@@ -770,6 +770,13 @@ dmar_find(device_t dev, bool verbose)
const char *banner;
int i, dev_domain, dev_busno, dev_path_len;
+ /*
+ * This function can only handle PCI(e) devices.
+ */
+ if (device_get_devclass(device_get_parent(dev)) !=
+ devclass_find("pci"))
+ return (NULL);
+
dmar_dev = NULL;
dev_domain = pci_get_domain(dev);
dev_path_len = dmar_dev_depth(dev);
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