libvirt/libvirt-qemu-Expand-call-to-qemuDomainNeedsVFIO.patch
Jiri Denemark 884d801843 libvirt-11.10.0-13.el9
- conf: Parse hyperv features even for host-model (RHEL-151688)
- qemu: Wire up new hyperv host-model mode behavior (RHEL-151688)
- Introduce EXPAND_CPU_FEATURES flag for domain capabilities (RHEL-153653)
- qemu: Implement VIR_CONNECT_GET_DOMAIN_CAPABILITIES_EXPAND_CPU_FEATURES (RHEL-153653)
- virsh: Add --expand-cpu-features option for domcapabilities (RHEL-153653)
- docs: Clarify host-model description in domain capabilities (RHEL-153653)
- qemu: Fix job handling when domain dies in post-copy migration (RHEL-145179)
- security_apparmor: Use g_auto* in AppArmorSetSecurityHostdevLabel (RHEL-159902)
- security: Cleanup hostdev label error logic (RHEL-159902)
- qemu: Fix IOMMUFD and VFIO security labels (RHEL-159902)
- viriommufd: Set IOMMU_OPTION_RLIMIT_MODE only when running privileged (RHEL-156803)
- conf: Move and rename virStorageSourceFDTuple object (RHEL-156803)
- conf: Refactor virHostdevIsPCIDevice (RHEL-156803)
- hypervisor: Fix virHostdevNeedsVFIO detection (RHEL-156803)
- qemu: Expand call to qemuDomainNeedsVFIO (RHEL-156803)
- qemu: Update qemuDomainNeedsVFIO to ignore PCI hostdev with IOMMUFD (RHEL-156803)
- src: Use virHostdevIsPCIDeviceWith* to check for IOMMUFD (RHEL-156803)
- conf: Introduce domain iommufd element (RHEL-156803)
- qemu: Implement iommufd (RHEL-156803)
- conf: Add iommufd fdgroup support (RHEL-156803)
- qemu: Implement iommufd fdgroup (RHEL-156803)
- tests: Add iommufd fdgroup test (RHEL-156803)
- hypervisor: Call virWaitForDevices() after detaching host devices (RHEL-156803)
- qemuMigrationSrcBeginXML: Don't call 'qemuMigrationSrcBeginPhaseBlockDirtyBitmaps' with offline VM (RHEL-173433)
- qemuMigrationSrcBeginPhase: Don't call 'qemuBlockNodesEnsureActive' with offline VM (RHEL-173433)
- util: virGetSubIDs: do not limit file size (RHEL-174491)
- cpu_conf: Introduce virCPUDefSortFeatures (RHEL-177364)
- qemu_capabilities: Split virQEMUCapsFillDomainCPUCaps (RHEL-177364)
- qemu: Move domain caps flags handling to virQEMUCapsFillDomainCPUHostModel (RHEL-177364)
- qemu_capabilities: Always sort features in host-model CPU (RHEL-177364)
- qemu_capabilities: Use g_autoptr in virQEMUCapsInitHostCPUModel (RHEL-177364)
- qemu_capabilities: Split conditions in virQEMUCapsInitHostCPUModel (RHEL-177364)
- qemu_capabilities: Cache expanded CPU (RHEL-177364)
- domaincapstest: Test EXPAND_CPU_FEATURES flag (RHEL-177364)
- util: Publish and mock virHostCPUGetMSRFromKVM (RHEL-177364)
- cpu_x86: Introduce virCPUx86DataAddMSR (RHEL-177364)
- cpu: Introduce virCPUUpdateFeatures (RHEL-177364)
- Fix documentation of VIR_CONNECT_GET_DOMAIN_CAPABILITIES_EXPAND_CPU_FEATURES (RHEL-177364)
- Introduce VIR_CONNECT_GET_DOMAIN_CAPABILITIES_SUPPORTED_CPU_FEATURES flag (RHEL-177364)
- virsh: Add --supported-cpu-features option for domcapabilities (RHEL-177364)
- domaincapstest: Test SUPPORTED_CPU_FEATURES flag (RHEL-177364)
- qemu_capabilities: Fix domain capabilities on AMD CPUs (RHEL-177364)
- distro: Replace old gating with tmt

Resolves: RHEL-145179, RHEL-151688, RHEL-153653, RHEL-156803, RHEL-159902
Resolves: RHEL-173433, RHEL-174491, RHEL-177364
2026-06-04 13:06:07 +02:00

52 lines
2.2 KiB
Diff

From 5512f4ffa8f4ea8a4afd354e4592b69dc5c39c61 Mon Sep 17 00:00:00 2001
Message-ID: <5512f4ffa8f4ea8a4afd354e4592b69dc5c39c61.1780571166.git.jdenemar@redhat.com>
From: Pavel Hrdina <phrdina@redhat.com>
Date: Wed, 18 Mar 2026 12:52:05 +0100
Subject: [PATCH] qemu: Expand call to qemuDomainNeedsVFIO
The function qemuDomainNeedsVFIO() was originally used by other parts
of qemu code to figure out if the VM needs /dev/vfio/vfio.
Later it was also used by code calculating locked memory limit for all
architectures, and after that change again and used only for PPC64.
Now it needs to be changed again due to IOMMUFD support, the
/dev/vfio/vfio device is used by QEMU only if IOMMUFD is not used
but for accounting we still need consider all PCI host devices
because if IOMMUFD is used it still requires increasing locked
memory limit.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
(cherry picked from commit c89b2bf1a80e3261bd18cdb352be1ffce9f4639e)
Resolves: https://redhat.atlassian.net/browse/RHEL-156803
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
---
src/qemu/qemu_domain.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 5c9f4831fd..57f18a02b6 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -8259,8 +8259,14 @@ getPPC64MemLockLimitBytes(virDomainDef *def)
passthroughLimit = maxMemory +
128 * (1ULL<<30) / 512 * nPCIHostBridges +
8192;
- } else if (qemuDomainNeedsVFIO(def) || virDomainDefHasVDPANet(def)) {
- /* For regular (non-NVLink2 present) VFIO passthrough, the value
+ } else if (virDomainDefHasPCIHostdev(def) ||
+ virDomainDefHasMdevHostdev(def) ||
+ virDomainDefHasNVMeDisk(def) ||
+ virDomainDefHasVDPANet(def)) {
+ /* Not using qemuDomainNeedsVFIO() as that doesn't take PCI host
+ * devices with IOMMFD into account.
+ *
+ * For regular (non-NVLink2 present) VFIO passthrough, the value
* of passthroughLimit is:
*
* passthroughLimit := max( 2 GiB * #PHBs, (c)
--
2.54.0