From d4ff34965e25f2041646a1337d71b39bb8cb2ba2 Mon Sep 17 00:00:00 2001
From: Thomas Huth <thuth@redhat.com>
Date: Wed, 3 Jul 2024 11:09:04 +0200
Subject: [PATCH] hw: Fix crash that happens when introspecting scsi-block on
older machine types
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"make check SPEED=slow" is currently failing the device-introspect-test on
older machine types since introspecting "scsi-block" is causing an abort:
$ ./qemu-system-x86_64 -M pc-q35-8.0 -monitor stdio
QEMU 9.0.50 monitor - type 'help' for more information
(qemu) device_add scsi-block,help
Unexpected error in object_property_find_err() at
../../devel/qemu/qom/object.c:1357:
can't apply global scsi-disk-base.migrate-emulated-scsi-request=false:
Property 'scsi-block.migrate-emulated-scsi-request' not found
Aborted (core dumped)
The problem is that the compat code tries to change the
"migrate-emulated-scsi-request" property for all devices that are
derived from "scsi-block", but the property has only been added
to "scsi-hd" and "scsi-cd" via the DEFINE_SCSI_DISK_PROPERTIES macro.
Thus let's fix the problem by only changing the property on the devices
that really have this property.
Fixes: b4912afa5f ("scsi-disk: Fix crash for VM configured with USB CDROM after live migration")
Message-ID: <20240703090904.909720-1-thuth@redhat.com>
Acked-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
hw/core/machine.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/core/machine.c b/hw/core/machine.c
index bc38cad7f2..8a878f84d7 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -36,7 +36,8 @@
GlobalProperty hw_compat_9_0[] = {
{"arm-cpu", "backcompat-cntfrq", "true" },
- {"scsi-disk-base", "migrate-emulated-scsi-request", "false" },
+ { "scsi-hd", "migrate-emulated-scsi-request", "false" },
+ { "scsi-cd", "migrate-emulated-scsi-request", "false" },
{"vfio-pci", "skip-vsc-check", "false" },
{ "virtio-pci", "x-pcie-pm-no-soft-reset", "off" },
{"sd-card", "spec_version", "2" },
--
2.30.2