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[nvidia_stable-11.9] NVIDIA: SAUCE: qemu: Use pci_bus to identify multi-smmuv3 model #6

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Merged
NathanChenNVIDIA merged 2 commits into from
Dec 3, 2025
Merged

[nvidia_stable-11.9] NVIDIA: SAUCE: qemu: Use pci_bus to identify multi-smmuv3 model #6

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NVIDIA: SAUCE: qemu: Use pci_bus to identify multi-smmuv3 model
NathanChenNVIDIA Dec 2, 2025
144124e
NVIDIA: [Packaging]: Update changelog for version 11.9.0+nvidia3-1
NathanChenNVIDIA Dec 2, 2025
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6 changes: 6 additions & 0 deletions debian/changelog
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Original file line number Diff line number Diff line change
@@ -1,3 +1,9 @@
libvirt (11.9.0+nvidia3-1) noble; urgency=medium

* NVIDIA: SAUCE: qemu: Use pci_bus to identify multi-smmuv3 model

-- Nathan Chen <nathanc@nvidia.com> Tue, 02 Dec 2025 11:08:48 -0800

libvirt (11.9.0+nvidia2-1) noble; urgency=medium

* Update vEGM series to match RFCv3.
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2 changes: 1 addition & 1 deletion src/qemu/qemu_command.c
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Expand Up @@ -7347,7 +7347,7 @@ qemuBuildMachineCommandLine(virCommand *cmd,
if (qemuAppendDomainFeaturesMachineParam(&buf, def, qemuCaps) < 0)
return -1;

if (def->niommus == 1) {
if (def->iommus && def->iommus[0]->pci_bus < 0) {
switch (def->iommus[0]->model) {
case VIR_DOMAIN_IOMMU_MODEL_SMMUV3:
virBufferAddLit(&buf, ",iommu=smmuv3");
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2 changes: 1 addition & 1 deletion src/qemu/qemu_postparse.c
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Expand Up @@ -1559,7 +1559,7 @@ qemuDomainDefEnableDefaultFeatures(virDomainDef *def,
* domain already has IOMMU without inremap. This will be fixed in
* qemuDomainIOMMUDefPostParse() but there domain definition can't be
* modified so change it now. */
if (def->iommus && def->niommus == 1 &&
if (def->iommus && def->iommus[0]->pci_bus < 0 &&
(def->iommus[0]->intremap == VIR_TRISTATE_SWITCH_ON ||
qemuDomainNeedsIOMMUWithEIM(def)) &&
def->features[VIR_DOMAIN_FEATURE_IOAPIC] == VIR_DOMAIN_IOAPIC_NONE) {
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