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boards.h: Ignore migration for SMBus devices on older machines

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Migration capability is being added for pm_smbus and SMBus devices.
This change will allow backwards compatibility to be kept when
migrating back to an old qemu version.  Add a bool to the machine
class tho keep smbus migration from happening.  Future changes
will use this.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Corey Minyard 2018-11-14 14:41:01 -06:00
parent 8b38e532b5
commit 7fccf2a068
3 changed files with 3 additions and 0 deletions
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1
hw/i386/pc_piix.c
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@ -444,6 +444,7 @@ static void pc_i440fx_3_1_machine_options(MachineClass *m)
pc_i440fx_4_0_machine_options(m);
m->is_default = 0;
m->smbus_no_migration_support = true;
m->alias = NULL;
pcmc->pvh_enabled = false;
compat_props_add(m->compat_props, hw_compat_3_1, hw_compat_3_1_len);

1
hw/i386/pc_q35.c
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@ -380,6 +380,7 @@ static void pc_q35_3_1_machine_options(MachineClass *m)
pc_q35_4_0_machine_options(m);
m->default_kernel_irqchip_split = false;
m->smbus_no_migration_support = true;
m->alias = NULL;
pcmc->pvh_enabled = false;
compat_props_add(m->compat_props, hw_compat_3_1, hw_compat_3_1_len);

1
include/hw/boards.h
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@ -206,6 +206,7 @@ struct MachineClass {
void (*numa_auto_assign_ram)(MachineClass *mc, NodeInfo *nodes,
int nb_nodes, ram_addr_t size);
bool ignore_boot_device_suffixes;
bool smbus_no_migration_support;
HotplugHandler *(*get_hotplug_handler)(MachineState *machine,
DeviceState *dev);