rpms/libvirt
7
0
Fork 1
Code Issues Pull Requests Releases Activity

libvirt-11.10.0-10.5.el10nv

Browse Source 
- hypervisor: Call virWaitForDevices() after detaching host devices (VOYAGER-309)

Resolves: VOYAGER-309
This commit is contained in:
Pavel Hrdina 2026-03-27 16:35:11 +01:00
parent bfc31e8282
commit 0909e35830
2 changed files with 52 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
libvirt-hypervisor-Call-virWaitForDevices-after-detaching-host-devices.patch Normal file
View File

@ -0,0 +1,47 @@
From f753d55edab43dae78f9ef5dc13ca53f626e09fe Mon Sep 17 00:00:00 2001
Message-ID: <f753d55edab43dae78f9ef5dc13ca53f626e09fe.1774625709.git.phrdina@redhat.com>
From: Pavel Hrdina <phrdina@redhat.com>
Date: Thu, 26 Mar 2026 14:32:36 +0100
Subject: [PATCH] hypervisor: Call virWaitForDevices() after detaching host
devices
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
From: Pavel Hrdina <phrdina@redhat.com>
On systems with selinux enabled starting a VM with managed host device
using IOMMUFD backend can run into race-condition where both libvirt and
udev are setting selinux label on /dev/vfio/devices/vfioX device. If
udev is the last one to set selinux label starting VM fails with:
error: internal error: QEMU unexpectedly closed the monitor (vm='test'): 2026-03-26T15:47:36.620422Z qemu-kvm: -device {"driver":"vfio-pci","id":"hostdev0","iommufd":"iommufd0","fd":"20","bus":"pci.7","addr":"0x0"}: vfio hostdev0: Failed to add fd 20 to KVM VFIO device: Invalid argument
We need to wait for udev to finish processing all events.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
(cherry picked from commit b96ea4db3aabac4790d6e1d53e2f309f5e73efae)
Resolves: https://redhat.atlassian.net/browse/VOYAGER-309
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
---
src/hypervisor/virhostdev.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/hypervisor/virhostdev.c b/src/hypervisor/virhostdev.c
index 43155ceb6c..981ca4cd20 100644
--- a/src/hypervisor/virhostdev.c
+++ b/src/hypervisor/virhostdev.c
@@ -782,6 +782,9 @@ virHostdevPreparePCIDevicesImpl(virHostdevManager *mgr,
}
}
+ /* Step 2.5: Wait for udev to handle all events for devices. */
+ virWaitForDevices();
+
/* At this point, all devices are attached to the stub driver and have
* been marked as inactive */
--
2.53.0

6
libvirt.spec
View File

@ -294,7 +294,7 @@
Summary: Library providing a simple virtualization API
Name: libvirt
Version: 11.10.0
Release: 10.4%{?dist}%{?extra_release}
Release: 10.5%{?dist}%{?extra_release}
License: GPL-2.0-or-later AND LGPL-2.1-only AND LGPL-2.1-or-later AND OFL-1.1
URL: https://libvirt.org/
@ -404,6 +404,7 @@ Patch99: libvirt-qemu-Implement-iommufd.patch
Patch100: libvirt-conf-Add-iommufd-fdgroup-support.patch
Patch101: libvirt-qemu-Implement-iommufd-fdgroup.patch
Patch102: libvirt-tests-Add-iommufd-fdgroup-test.patch
Patch103: libvirt-hypervisor-Call-virWaitForDevices-after-detaching-host-devices.patch
Requires: libvirt-daemon = %{version}-%{release}
@ -2795,6 +2796,9 @@ exit 0
%endif
%changelog
* Fri Mar 27 2026 Pavel Hrdina <phrdina@redhat.com> - 11.10.0-10.5
- hypervisor: Call virWaitForDevices() after detaching host devices (VOYAGER-309)
* Fri Mar 20 2026 Pavel Hrdina <phrdina@redhat.com> - 11.10.0-10.4
- security_apparmor: Use g_auto* in AppArmorSetSecurityHostdevLabel (VOYAGER-309)
- security: Cleanup hostdev label error logic (VOYAGER-309)