[PULL 7/8] hw/arm/aspeed_ast27x0: Add unimplemented Privilege Controller MMIO regions for SSP/TSP

["Cédric Le Goater" <clg@redhat.com>]

From: Jamin Lin <jamin_lin@aspeedtech.com>

The AST2700 SSP/TSP firmware accesses Privilege Controller MMIO regions that
are not yet implemented in QEMU.

This change adds unimplemented MMIO devices for the Privilege Controller
blocks and maps them to their corresponding physical addresses in the SSP/TSP
address space. These stub devices allow QEMU to safely handle firmware
accesses and prevent spurious exceptions, while accurately reflecting
the hardware memory map.

No functional changes.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
Link: https://lore.kernel.org/qemu-devel/20260706052701.1141740-5-jamin_lin@aspeedtech.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
---
 include/hw/arm/aspeed_coprocessor.h |  1 +
 include/hw/arm/aspeed_soc.h         |  2 ++
 hw/arm/aspeed_ast27x0-ssp.c         | 12 ++++++++++++
 hw/arm/aspeed_ast27x0-tsp.c         | 12 ++++++++++++
 4 files changed, 27 insertions(+)

diff --git a/include/hw/arm/aspeed_coprocessor.h b/include/hw/arm/aspeed_coprocessor.h
index 4a50f688ecdc..700cbfb4bb19 100644
--- a/include/hw/arm/aspeed_coprocessor.h
+++ b/include/hw/arm/aspeed_coprocessor.h
@@ -48,6 +48,7 @@ struct Aspeed27x0CoprocessorState {
     AspeedINTCState intc[2];
     UnimplementedDeviceState ipc[2];
     UnimplementedDeviceState scuio;
+    UnimplementedDeviceState pric[2];
 
     ARMv7MState armv7m;
 };
diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h
index 3aac144cd408..a0d2432620e0 100644
--- a/include/hw/arm/aspeed_soc.h
+++ b/include/hw/arm/aspeed_soc.h
@@ -295,6 +295,8 @@ enum {
     ASPEED_DEV_IOEXP1_INTCIO,
     ASPEED_DEV_IOEXP0_I3C,
     ASPEED_DEV_IOEXP1_I3C,
+    ASPEED_DEV_PRIC0,
+    ASPEED_DEV_PRIC1,
 };
 
 const char *aspeed_soc_cpu_type(const char * const *valid_cpu_types);
diff --git a/hw/arm/aspeed_ast27x0-ssp.c b/hw/arm/aspeed_ast27x0-ssp.c
index b3c4eb1915ed..e35c0c9a5a56 100644
--- a/hw/arm/aspeed_ast27x0-ssp.c
+++ b/hw/arm/aspeed_ast27x0-ssp.c
@@ -22,10 +22,12 @@ static const hwaddr aspeed_soc_ast27x0ssp_memmap[] = {
     [ASPEED_DEV_SDRAM]     =  0x00000000,
     [ASPEED_DEV_SRAM0]     =  0x70000000,
     [ASPEED_DEV_INTC]      =  0x72100000,
+    [ASPEED_DEV_PRIC0]     =  0x72140000,
     [ASPEED_DEV_SCU]       =  0x72C02000,
     [ASPEED_DEV_TIMER1]    =  0x72C10000,
     [ASPEED_DEV_UART4]     =  0x72C1A000,
     [ASPEED_DEV_IPC0]      =  0x72C1C000,
+    [ASPEED_DEV_PRIC1]     =  0x74100000,
     [ASPEED_DEV_SCUIO]     =  0x74C02000,
     [ASPEED_DEV_INTCIO]    =  0x74C18000,
     [ASPEED_DEV_UART0]     =  0x74C33000,
@@ -141,6 +143,10 @@ static void aspeed_soc_ast27x0ssp_init(Object *obj)
                             TYPE_UNIMPLEMENTED_DEVICE);
     object_initialize_child(obj, "scuio", &a->scuio,
                             TYPE_UNIMPLEMENTED_DEVICE);
+    object_initialize_child(obj, "pric0", &a->pric[0],
+                            TYPE_UNIMPLEMENTED_DEVICE);
+    object_initialize_child(obj, "pric1", &a->pric[1],
+                            TYPE_UNIMPLEMENTED_DEVICE);
 }
 
 static void aspeed_soc_ast27x0ssp_realize(DeviceState *dev_soc, Error **errp)
@@ -255,6 +261,12 @@ static void aspeed_soc_ast27x0ssp_realize(DeviceState *dev_soc, Error **errp)
     aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&a->scuio),
                                   "aspeed.scuio",
                                   sc->memmap[ASPEED_DEV_SCUIO], 0x1000);
+    aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&a->pric[0]),
+                                  "aspeed.pric0",
+                                  sc->memmap[ASPEED_DEV_PRIC0], 0x1000);
+    aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&a->pric[1]),
+                                  "aspeed.pric1",
+                                  sc->memmap[ASPEED_DEV_PRIC1], 0x1000);
 }
 
 static void aspeed_soc_ast27x0ssp_class_init(ObjectClass *klass,
diff --git a/hw/arm/aspeed_ast27x0-tsp.c b/hw/arm/aspeed_ast27x0-tsp.c
index 6098d1aae32d..fdc279cbf654 100644
--- a/hw/arm/aspeed_ast27x0-tsp.c
+++ b/hw/arm/aspeed_ast27x0-tsp.c
@@ -22,10 +22,12 @@ static const hwaddr aspeed_soc_ast27x0tsp_memmap[] = {
     [ASPEED_DEV_SDRAM]     =  0x00000000,
     [ASPEED_DEV_SRAM0]     =  0x70000000,
     [ASPEED_DEV_INTC]      =  0x72100000,
+    [ASPEED_DEV_PRIC0]     =  0x72140000,
     [ASPEED_DEV_SCU]       =  0x72C02000,
     [ASPEED_DEV_TIMER1]    =  0x72C10000,
     [ASPEED_DEV_UART4]     =  0x72C1A000,
     [ASPEED_DEV_IPC0]      =  0x72C1C000,
+    [ASPEED_DEV_PRIC1]     =  0x74100000,
     [ASPEED_DEV_SCUIO]     =  0x74C02000,
     [ASPEED_DEV_INTCIO]    =  0x74C18000,
     [ASPEED_DEV_UART0]     =  0x74C33000,
@@ -141,6 +143,10 @@ static void aspeed_soc_ast27x0tsp_init(Object *obj)
                             TYPE_UNIMPLEMENTED_DEVICE);
     object_initialize_child(obj, "scuio", &a->scuio,
                             TYPE_UNIMPLEMENTED_DEVICE);
+    object_initialize_child(obj, "pric0", &a->pric[0],
+                            TYPE_UNIMPLEMENTED_DEVICE);
+    object_initialize_child(obj, "pric1", &a->pric[1],
+                            TYPE_UNIMPLEMENTED_DEVICE);
 }
 
 static void aspeed_soc_ast27x0tsp_realize(DeviceState *dev_soc, Error **errp)
@@ -255,6 +261,12 @@ static void aspeed_soc_ast27x0tsp_realize(DeviceState *dev_soc, Error **errp)
     aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&a->scuio),
                                   "aspeed.scuio",
                                   sc->memmap[ASPEED_DEV_SCUIO], 0x1000);
+    aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&a->pric[0]),
+                                  "aspeed.pric0",
+                                  sc->memmap[ASPEED_DEV_PRIC0], 0x1000);
+    aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&a->pric[1]),
+                                  "aspeed.pric1",
+                                  sc->memmap[ASPEED_DEV_PRIC1], 0x1000);
 }
 
 static void aspeed_soc_ast27x0tsp_class_init(ObjectClass *klass,
-- 
2.54.0