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[PATCH 36/47] virtio-rng-pci: fix migration compat for vectors
From: |
Michael Tokarev |
Subject: |
[PATCH 36/47] virtio-rng-pci: fix migration compat for vectors |
Date: |
Wed, 8 Mar 2023 22:22:15 +0300 |
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Fixup the migration compatibility for existing machine types
so that they do not enable msi-x.
Symptom:
(qemu) qemu: get_pci_config_device: Bad config data: i=0x34 read: 84 device: 98
cmask: ff wmask: 0 w1cmask:0
qemu: Failed to load PCIDevice:config
qemu: Failed to load virtio-rng:virtio
qemu: error while loading state for instance 0x0 of device
'0000:00:03.0/virtio-rng'
qemu: load of migration failed: Invalid argument
Note: This fix will break migration from 7.2->7.2-fixed with this patch
bz: https://bugzilla.redhat.com/show_bug.cgi?id=2155749
Fixes: 9ea02e8f1 ("virtio-rng-pci: Allow setting nvectors, so we can use MSI-X")
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20230109105809.163975-1-dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: David Daney <david.daney@fungible.com>
Fixes: 9ea02e8f1 ("virtio-rng-pci: Allow setting nvectors, so we can use MSI-X")
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
(cherry picked from commit bad9c5a5166fd5e3a892b7b0477cf2f4bd3a959a)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
---
hw/core/machine.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 8d34caa31d..77a0a131d1 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -42,6 +42,7 @@
GlobalProperty hw_compat_7_1[] = {
{ "virtio-device", "queue_reset", "false" },
+ { "virtio-rng-pci", "vectors", "0" },
};
const size_t hw_compat_7_1_len = G_N_ELEMENTS(hw_compat_7_1);
--
2.30.2
- [PATCH 43/47] intel-iommu: fail MAP notifier without caching mode, (continued)
- [PATCH 43/47] intel-iommu: fail MAP notifier without caching mode, Michael Tokarev, 2023/03/08
- [PATCH 45/47] block: Handle curl 7.55.0, 7.85.0 version changes, Michael Tokarev, 2023/03/08
- [PATCH 44/47] intel-iommu: fail DEVIOTLB_UNMAP without dt mode, Michael Tokarev, 2023/03/08
- [PATCH 46/47] tests/tcg: fix unused variable in linux-test, Michael Tokarev, 2023/03/08
- [PATCH 47/47] build-sys: fix crlf-ending C code, Michael Tokarev, 2023/03/08
- [PATCH 01/47] target/sh4: Mask restore of env->flags from tb->flags, Michael Tokarev, 2023/03/08
- [PATCH 03/47] virtio-mem: Fix the bitmap index of the section offset, Michael Tokarev, 2023/03/08
- [PATCH 09/47] hw/nvme: fix missing endian conversions for doorbell buffers, Michael Tokarev, 2023/03/08
- [PATCH 08/47] acpi: cpuhp: fix guest-visible maximum access size to the legacy reg block, Michael Tokarev, 2023/03/08
- [PATCH 04/47] virtio-mem: Fix the iterator variable in a vmem->rdl_list loop, Michael Tokarev, 2023/03/08
- [PATCH 36/47] virtio-rng-pci: fix migration compat for vectors,
Michael Tokarev <=
- Re: [RFC PATCH 00/47] Patch Round-up for stable 7.2.1, Thomas Huth, 2023/03/22