From: Thomas Huth Date: Wed, 3 Jul 2024 09:09:04 +0000 (+0200) Subject: hw: Fix crash that happens when introspecting scsi-block on older machine types X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d4ff34965e25f2041646a1337d71b39bb8cb2ba2;p=qemu.git hw: Fix crash that happens when introspecting scsi-block on older machine types "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 Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Thomas Huth --- 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" },