diff mbox series

[v3,08/16] boards.h: Ignore migration for SMBus devices on older machines

Message ID 20181126200435.23408-9-minyard@acm.org (mailing list archive)
State New, archived
Headers show
Series Fix/add vmstate handling in some I2C code | expand

Commit Message

Corey Minyard Nov. 26, 2018, 8:04 p.m. UTC
From: Corey Minyard <cminyard@mvista.com>

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>
---
 hw/i386/pc_piix.c   | 1 +
 hw/i386/pc_q35.c    | 1 +
 include/hw/boards.h | 1 +
 3 files changed, 3 insertions(+)

Comments

Dr. David Alan Gilbert Nov. 29, 2018, 12:20 p.m. UTC | #1
* minyard@acm.org (minyard@acm.org) wrote:
> From: Corey Minyard <cminyard@mvista.com>
> 
> 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.

Still needs the 3.0 and 3.1, but other than that:


Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

> Signed-off-by: Corey Minyard <cminyard@mvista.com>
> Cc: Eduardo Habkost <ehabkost@redhat.com>
> Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
> ---
>  hw/i386/pc_piix.c   | 1 +
>  hw/i386/pc_q35.c    | 1 +
>  include/hw/boards.h | 1 +
>  3 files changed, 3 insertions(+)
> 
> diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
> index cb28227cc3..3d1ccb1af1 100644
> --- a/hw/i386/pc_piix.c
> +++ b/hw/i386/pc_piix.c
> @@ -443,6 +443,7 @@ static void pc_i440fx_2_12_machine_options(MachineClass *m)
>      pc_i440fx_3_0_machine_options(m);
>      m->is_default = 0;
>      m->alias = NULL;
> +    m->smbus_no_migration_support = true;
>      SET_MACHINE_COMPAT(m, PC_COMPAT_2_12);
>  }
>  
> diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
> index 90e88c9b28..0c6fca6a40 100644
> --- a/hw/i386/pc_q35.c
> +++ b/hw/i386/pc_q35.c
> @@ -324,6 +324,7 @@ static void pc_q35_2_12_machine_options(MachineClass *m)
>  {
>      pc_q35_3_0_machine_options(m);
>      m->alias = NULL;
> +    m->smbus_no_migration_support = true;
>      SET_MACHINE_COMPAT(m, PC_COMPAT_2_12);
>  }
>  
> diff --git a/include/hw/boards.h b/include/hw/boards.h
> index f82f28468b..65314fbe2a 100644
> --- a/include/hw/boards.h
> +++ b/include/hw/boards.h
> @@ -207,6 +207,7 @@ 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);
> -- 
> 2.17.1
> 
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
diff mbox series

Patch

diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index cb28227cc3..3d1ccb1af1 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -443,6 +443,7 @@  static void pc_i440fx_2_12_machine_options(MachineClass *m)
     pc_i440fx_3_0_machine_options(m);
     m->is_default = 0;
     m->alias = NULL;
+    m->smbus_no_migration_support = true;
     SET_MACHINE_COMPAT(m, PC_COMPAT_2_12);
 }
 
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 90e88c9b28..0c6fca6a40 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -324,6 +324,7 @@  static void pc_q35_2_12_machine_options(MachineClass *m)
 {
     pc_q35_3_0_machine_options(m);
     m->alias = NULL;
+    m->smbus_no_migration_support = true;
     SET_MACHINE_COMPAT(m, PC_COMPAT_2_12);
 }
 
diff --git a/include/hw/boards.h b/include/hw/boards.h
index f82f28468b..65314fbe2a 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -207,6 +207,7 @@  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);