[RFC PATCH 2/2] hw/arm/raspi: Restrict BCM2835 / BCM2836 SoC to TCG

[Philippe Mathieu-Daudé]

KVM requires the target cpu to be at least ARMv8 architecture
(support on ARMv7 has been dropped in commit 82bf7ae84ce:
"target/arm: Remove KVM support for 32-bit Arm hosts").

>From the various SoC used by the Raspberry Pi machines, only
the BCM2837 is an ARMv8 (Cortex-A53).

Restrict the BCM2835 (ARM1176) and BCM2836 (Cortex-A7) to TCG.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 hw/arm/bcm2836.c | 6 ++++++
 hw/arm/raspi.c   | 4 ++++
 2 files changed, 10 insertions(+)

diff --git a/hw/arm/bcm2836.c b/hw/arm/bcm2836.c
index fd16ed87c40..3051764f2dc 100644
--- a/hw/arm/bcm2836.c
+++ b/hw/arm/bcm2836.c
@@ -89,6 +89,7 @@ static bool bcm283x_common_realize(DeviceState *dev, Error 
**errp)
     return true;
 }
 
+#ifdef CONFIG_TCG
 static void bcm2835_realize(DeviceState *dev, Error **errp)
 {
     BCM283XState *s = BCM283X(dev);
@@ -107,6 +108,7 @@ static void bcm2835_realize(DeviceState *dev, Error **errp)
     sysbus_connect_irq(SYS_BUS_DEVICE(&s->peripherals), 1,
             qdev_get_gpio_in(DEVICE(&s->cpu[0].core), ARM_CPU_FIQ));
 }
+#endif /* CONFIG_TCG */
 
 static void bcm2836_realize(DeviceState *dev, Error **errp)
 {
@@ -178,6 +180,7 @@ static void bcm283x_class_init(ObjectClass *oc, void *data)
     dc->user_creatable = false;
 }
 
+#ifdef CONFIG_TCG
 static void bcm2835_class_init(ObjectClass *oc, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(oc);
@@ -201,6 +204,7 @@ static void bcm2836_class_init(ObjectClass *oc, void *data)
     bc->clusterid = 0xf;
     dc->realize = bcm2836_realize;
 };
+#endif /* CONFIG_TCG */
 
 #ifdef TARGET_AARCH64
 static void bcm2837_class_init(ObjectClass *oc, void *data)
@@ -227,6 +231,7 @@ static const TypeInfo bcm283x_types[] = {
         .class_init     = bcm283x_class_init,
         .abstract       = true,
     },
+#ifdef CONFIG_TCG
     {
         .name           = TYPE_BCM2835,
         .parent         = TYPE_BCM283X,
@@ -236,6 +241,7 @@ static const TypeInfo bcm283x_types[] = {
         .parent         = TYPE_BCM283X,
         .class_init     = bcm2836_class_init,
     },
+#endif /* CONFIG_TCG */
 #ifdef TARGET_AARCH64
     {
         .name           = TYPE_BCM2837,
diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c
index dce966a4dd8..cfa15504d9c 100644
--- a/hw/arm/raspi.c
+++ b/hw/arm/raspi.c
@@ -319,6 +319,7 @@ static void raspi_machine_class_common_init(MachineClass 
*mc,
     mc->default_ram_id = "ram";
 };
 
+#ifdef CONFIG_TCG
 static void raspi0_machine_class_init(ObjectClass *oc, void *data)
 {
     MachineClass *mc = MACHINE_CLASS(oc);
@@ -346,6 +347,7 @@ static void raspi2b_machine_class_init(ObjectClass *oc, 
void *data)
     rmc->board_rev = 0xa21041;
     raspi_machine_class_common_init(mc, rmc->board_rev);
 };
+#endif /* CONFIG_TCG */
 
 #ifdef TARGET_AARCH64
 static void raspi3ap_machine_class_init(ObjectClass *oc, void *data)
@@ -376,6 +378,7 @@ static const TypeInfo raspi_machine_types[] = {
         .class_size     = sizeof(RaspiMachineClass),
         .abstract       = true,
     },
+#ifdef CONFIG_TCG
     {
         .name           = MACHINE_TYPE_NAME("raspi0"),
         .parent         = TYPE_RASPI_MACHINE,
@@ -389,6 +392,7 @@ static const TypeInfo raspi_machine_types[] = {
         .parent         = TYPE_RASPI_MACHINE,
         .class_init     = raspi2b_machine_class_init,
     },
+#endif /* CONFIG_TCG */
 #ifdef TARGET_AARCH64
     {
         .name           = MACHINE_TYPE_NAME("raspi3ap"),
-- 
2.26.2