diff --git a/SOURCES/ipxe-Support-VIRTIO_NET_F_IOMMU_PLATFORM.patch b/SOURCES/ipxe-Support-VIRTIO_NET_F_IOMMU_PLATFORM.patch
new file mode 100644
index 0000000..96dc56a
--- /dev/null
+++ b/SOURCES/ipxe-Support-VIRTIO_NET_F_IOMMU_PLATFORM.patch
@@ -0,0 +1,61 @@
+From 615cbcc0d0ebf1509aa15bfc4468aabae3e93626 Mon Sep 17 00:00:00 2001
+From: Xiao Wang <jasowang@redhat.com>
+Date: Tue, 18 Jul 2017 09:05:06 +0200
+Subject: [PATCH] Support VIRTIO_NET_F_IOMMU_PLATFORM
+
+RH-Author: Xiao Wang <jasowang@redhat.com>
+Message-id: <1500368706-1228-1-git-send-email-jasowang@redhat.com>
+Patchwork-id: 75798
+O-Subject: [RHEL7.4z ipxe PATCH] [virtio] Support VIRTIO_NET_F_IOMMU_PLATFORM
+Bugzilla: 1481180
+RH-Acked-by: wexu@redhat.com
+RH-Acked-by: Jens Freimann <jfreimann@redhat.com>
+RH-Acked-by: Maxime Coquelin <maxime.coquelin@redhat.com>
+RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
+
+Bugzilla: 1467887
+Test status: Tested by my self
+Brew Build: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=13674196
+
+Since we don't enable IOMMU at all, we can then simply enable the
+IOMMU support by claiming the support of VIRITO_F_IOMMU_PLATFORM.
+This fixes booting failure when iommu_platform is set from qemu cli.
+
+Signed-off-by: Jason Wang <jasowang@redhat.com>
+Signed-off-by: Michael Brown <mcb30@ipxe.org>
+(cherry picked from commit 6a258d8d5523c9b529ae2607d7f49e48eea8beeb)
+Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
+---
+ src/drivers/net/virtio-net.c | 3 ++-
+ src/include/ipxe/virtio-ring.h | 1 +
+ 2 files changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/src/drivers/net/virtio-net.c b/src/drivers/net/virtio-net.c
+index 4151532..fe79a92 100644
+--- a/src/drivers/net/virtio-net.c
++++ b/src/drivers/net/virtio-net.c
+@@ -259,7 +259,8 @@ static int virtnet_open_modern ( struct net_device *netdev ) {
+ ( 1ULL << VIRTIO_NET_F_MAC ) |
+ ( 1ULL << VIRTIO_NET_F_MTU ) |
+ ( 1ULL << VIRTIO_F_VERSION_1 ) |
+- ( 1ULL << VIRTIO_F_ANY_LAYOUT ) ) );
++ ( 1ULL << VIRTIO_F_ANY_LAYOUT ) |
++ ( 1ULL << VIRTIO_F_IOMMU_PLATFORM ) ) );
+ vpm_add_status ( &virtnet->vdev, VIRTIO_CONFIG_S_FEATURES_OK );
+
+ status = vpm_get_status ( &virtnet->vdev );
+diff --git a/src/include/ipxe/virtio-ring.h b/src/include/ipxe/virtio-ring.h
+index e608e62..852769f 100644
+--- a/src/include/ipxe/virtio-ring.h
++++ b/src/include/ipxe/virtio-ring.h
+@@ -20,6 +20,7 @@
+ #define VIRTIO_F_ANY_LAYOUT 27
+ /* v1.0 compliant. */
+ #define VIRTIO_F_VERSION_1 32
++#define VIRTIO_F_IOMMU_PLATFORM 33
+
+ #define MAX_QUEUE_NUM (256)
+
+--
+1.8.3.1
+
diff --git a/SPECS/ipxe.spec b/SPECS/ipxe.spec
index 6a31e15..8d18b23 100644
--- a/SPECS/ipxe.spec
+++ b/SPECS/ipxe.spec
@@ -40,7 +40,7 @@
Name: ipxe
Version: %{date}
-Release: 1.git%{hash}%{?dist}
+Release: 1.git%{hash}%{?dist}.1
Summary: A network boot loader
Group: System Environment/Base
@@ -56,6 +56,8 @@ Patch3: 0003-add-custom-Makefile-for-EfiRom-RHEL-only.patch
Patch4: 0005-Use-spec-compliant-timeouts.patch
Patch5: 0008-Enable-IPv6-protocol-in-non-QEMU-builds.patch
Patch6: 0009-Strip-802.1Q-VLAN-0-priority-tags.patch
+# For bz#1481180 - iommu platform support for ipxe [rhel-7.4.z]
+Patch7: ipxe-Support-VIRTIO_NET_F_IOMMU_PLATFORM.patch
%ifarch %{buildarches}
BuildRequires: perl
@@ -128,6 +130,7 @@ patch_command="patch -p1 -s"
%patch4 -p1
%patch5 -p1
%patch6 -p1
+%patch7 -p1
%build
%ifarch %{buildarches}
@@ -224,6 +227,11 @@ done
%endif
%changelog
+* Thu Aug 17 2017 Miroslav Rezanina <mrezanin@redhat.com> - 20170123-1.git4e85b27.el7_4.1
+- ipxe-Support-VIRTIO_NET_F_IOMMU_PLATFORM.patch [bz#1481180]
+- Resolves: bz#1481180
+ (iommu platform support for ipxe [rhel-7.4.z])
+
* Fri Mar 10 2017 Miroslav Rezanina <mrezanin@redhat.com> - 20170123-1.git4e85b27.el7
- Rebase to commit 4e85b27 [bz#1413781]
- Resolves: bz#1413781