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[Qemu-devel] [PATCH v3 08/16] boards.h: Ignore migration for SMBus devic


From: minyard
Subject: [Qemu-devel] [PATCH v3 08/16] boards.h: Ignore migration for SMBus devices on older machines
Date: Mon, 26 Nov 2018 14:04:27 -0600

From: Corey Minyard <address@hidden>

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 <address@hidden>
Cc: Eduardo Habkost <address@hidden>
Cc: Marcel Apfelbaum <address@hidden>
---
 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




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