summary refs log tree commit diff stats
diff options
context:
space:
mode:
-rw-r--r--hw/arm/armsse.c8
-rw-r--r--include/hw/arm/armsse.h3
2 files changed, 7 insertions, 4 deletions
diff --git a/hw/arm/armsse.c b/hw/arm/armsse.c
index d0207dbabc..50da41f64c 100644
--- a/hw/arm/armsse.c
+++ b/hw/arm/armsse.c
@@ -505,11 +505,10 @@ static void armsse_realize(DeviceState *dev, Error **errp)
          * the INITSVTOR* registers before powering up the CPUs in any case,
          * so the hardware's default value doesn't matter. QEMU doesn't emulate
          * the control processor, so instead we behave in the way that the
-         * firmware does. All boards currently known about have firmware that
-         * sets the INITSVTOR0 and INITSVTOR1 registers to 0x10000000, like the
-         * IoTKit default. We can make this more configurable if necessary.
+         * firmware does. The initial value is configurable by the board code
+         * to match whatever its firmware does.
          */
-        qdev_prop_set_uint32(cpudev, "init-svtor", 0x10000000);
+        qdev_prop_set_uint32(cpudev, "init-svtor", s->init_svtor);
         /*
          * Start all CPUs except CPU0 powered down. In real hardware it is
          * a configurable property of the SSE-200 which CPUs start powered up
@@ -1187,6 +1186,7 @@ static Property armsse_properties[] = {
     DEFINE_PROP_UINT32("EXP_NUMIRQ", ARMSSE, exp_numirq, 64),
     DEFINE_PROP_UINT32("MAINCLK", ARMSSE, mainclk_frq, 0),
     DEFINE_PROP_UINT32("SRAM_ADDR_WIDTH", ARMSSE, sram_addr_width, 15),
+    DEFINE_PROP_UINT32("init-svtor", ARMSSE, init_svtor, 0x10000000),
     DEFINE_PROP_END_OF_LIST()
 };
 
diff --git a/include/hw/arm/armsse.h b/include/hw/arm/armsse.h
index 444605b44d..84879f40dd 100644
--- a/include/hw/arm/armsse.h
+++ b/include/hw/arm/armsse.h
@@ -48,6 +48,8 @@
  *    if necessary.)
  *  + QOM property "SRAM_ADDR_WIDTH" sets the number of bits used for the
  *    address of each SRAM bank (and thus the total amount of internal SRAM)
+ *  + QOM property "init-svtor" sets the initial value of the CPU SVTOR register
+ *    (where it expects to load the PC and SP from the vector table on reset)
  *  + Named GPIO inputs "EXP_IRQ" 0..n are the expansion interrupts for CPU 0,
  *    which are wired to its NVIC lines 32 .. n+32
  *  + Named GPIO inputs "EXP_CPU1_IRQ" 0..n are the expansion interrupts for
@@ -204,6 +206,7 @@ typedef struct ARMSSE {
     uint32_t exp_numirq;
     uint32_t mainclk_frq;
     uint32_t sram_addr_width;
+    uint32_t init_svtor;
 } ARMSSE;
 
 typedef struct ARMSSEInfo ARMSSEInfo;