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55 lines
1.9 KiB
55 lines
1.9 KiB
From 816c20b23546d31316c9ca450db8a6668ac6216c Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= <clg@redhat.com>
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Date: Wed, 12 Jul 2023 17:46:57 +0200
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Subject: [PATCH 25/37] vfio/pci: Disable INTx in vfio_realize error path
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Cédric Le Goater <clg@redhat.com>
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RH-MergeRequest: 179: vfio: live migration support
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RH-Bugzilla: 2192818
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RH-Acked-by: Eric Auger <eric.auger@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Commit: [23/28] 2fde4bad00c4286e6bbe24947c2bfd6468fc0ff3 (clegoate/qemu-kvm-c9s)
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Bugzilla: https://bugzilla.redhat.com/2192818
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commit adee0da0368f
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Author: Zhenzhong Duan <zhenzhong.duan@intel.com>
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Date: Mon Jul 3 15:15:06 2023 +0800
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vfio/pci: Disable INTx in vfio_realize error path
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When vfio realize fails, INTx isn't disabled if it has been enabled.
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This may confuse host side with unhandled interrupt report.
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Fixes: c5478fea27ac ("vfio/pci: Respond to KVM irqchip change notifier")
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Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
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Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
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Reviewed-by: Cédric Le Goater <clg@redhat.com>
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Signed-off-by: Cédric Le Goater <clg@redhat.com>
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Signed-off-by: Cédric Le Goater <clg@redhat.com>
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---
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hw/vfio/pci.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
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index 87bd440504..2d059832a4 100644
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--- a/hw/vfio/pci.c
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+++ b/hw/vfio/pci.c
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@@ -3244,6 +3244,9 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
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return;
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out_deregister:
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+ if (vdev->interrupt == VFIO_INT_INTx) {
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+ vfio_intx_disable(vdev);
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+ }
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pci_device_set_intx_routing_notifier(&vdev->pdev, NULL);
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if (vdev->irqchip_change_notifier.notify) {
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kvm_irqchip_remove_change_notifier(&vdev->irqchip_change_notifier);
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--
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2.39.3
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