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-rw-r--r--hw/i386/pc.c1
-rw-r--r--hw/i386/pc_piix.c2
-rw-r--r--hw/i386/pc_q35.c2
3 files changed, 5 insertions, 0 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 9e37186776..293e22a7e1 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1963,6 +1963,7 @@ static void pc_machine_class_init(ObjectClass *oc, void *data)
     /* BIOS ACPI tables: 128K. Other BIOS datastructures: less than 4K reported
      * to be used at the moment, 32K should be enough for a while.  */
     pcmc->acpi_data_size = 0x20000 + 0x8000;
+    pcmc->save_tsc_khz = true;
     mc->get_hotplug_handler = pc_get_hotpug_handler;
     mc->cpu_index_to_socket_id = pc_cpu_index_to_socket_id;
     mc->default_boot_order = "cad";
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index df2b824385..97219129ac 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -432,9 +432,11 @@ DEFINE_I440FX_MACHINE(v2_6, "pc-i440fx-2.6", NULL,
 
 static void pc_i440fx_2_5_machine_options(MachineClass *m)
 {
+    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
     pc_i440fx_2_6_machine_options(m);
     m->alias = NULL;
     m->is_default = 0;
+    pcmc->save_tsc_khz = false;
     SET_MACHINE_COMPAT(m, PC_COMPAT_2_5);
 }
 
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 412b3cd375..8b76d5c94b 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -360,8 +360,10 @@ DEFINE_Q35_MACHINE(v2_6, "pc-q35-2.6", NULL,
 
 static void pc_q35_2_5_machine_options(MachineClass *m)
 {
+    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
     pc_q35_2_6_machine_options(m);
     m->alias = NULL;
+    pcmc->save_tsc_khz = false;
     SET_MACHINE_COMPAT(m, PC_COMPAT_2_5);
 }