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| author | Liam Merwick | 2019-11-18 12:13:25 +0100 |
|---|---|---|
| committer | Paolo Bonzini | 2019-11-19 10:01:34 +0100 |
| commit | 2f34ebf222d6a9367665a4bf78b8c861a988c1d0 (patch) | |
| tree | 688ab7b0b5b1f1a4a8486e168a305be635631854 /hw/i386/x86.c | |
| parent | docs/microvm.rst: add instructions for shutting down the guest (diff) | |
| download | qemu-2f34ebf222d6a9367665a4bf78b8c861a988c1d0.tar.gz qemu-2f34ebf222d6a9367665a4bf78b8c861a988c1d0.tar.xz qemu-2f34ebf222d6a9367665a4bf78b8c861a988c1d0.zip | |
hw/i386: Move save_tsc_khz from PCMachineClass to X86MachineClass
Attempting to migrate a VM using the microvm machine class results in the source
QEMU aborting with the following message/backtrace:
target/i386/machine.c:955:tsc_khz_needed: Object 0x555556608fa0 is not an
instance of type generic-pc-machine
abort()
object_class_dynamic_cast_assert()
vmstate_save_state_v()
vmstate_save_state()
vmstate_save()
qemu_savevm_state_complete_precopy()
migration_thread()
migration_thread()
migration_thread()
qemu_thread_start()
start_thread()
clone()
The access to the machine class returned by MACHINE_GET_CLASS() in
tsc_khz_needed() is crashing as it is trying to dereference a different
type of machine class object (TYPE_PC_MACHINE) to that of this microVM.
This can be resolved by extending the changes in the following commit
f0bb276bf8d5 ("hw/i386: split PCMachineState deriving X86MachineState from it")
and moving the save_tsc_khz field in PCMachineClass to X86MachineClass.
Fixes: f0bb276bf8d5 ("hw/i386: split PCMachineState deriving X86MachineState from it")
Signed-off-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Message-Id: <1574075605-25215-1-git-send-email-liam.merwick@oracle.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/i386/x86.c')
| -rw-r--r-- | hw/i386/x86.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/i386/x86.c b/hw/i386/x86.c index fd84b23124..394edc2f72 100644 --- a/hw/i386/x86.c +++ b/hw/i386/x86.c @@ -763,6 +763,7 @@ static void x86_machine_class_init(ObjectClass *oc, void *data) mc->get_default_cpu_node_id = x86_get_default_cpu_node_id; mc->possible_cpu_arch_ids = x86_possible_cpu_arch_ids; x86mc->compat_apic_id_mode = false; + x86mc->save_tsc_khz = true; nc->nmi_monitor_handler = x86_nmi; object_class_property_add(oc, X86_MACHINE_MAX_RAM_BELOW_4G, "size", |