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-rw-r--r--hw/intc/armv7m_nvic.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/hw/intc/armv7m_nvic.c b/hw/intc/armv7m_nvic.c
index 74b25ce92c..eb49fd77c7 100644
--- a/hw/intc/armv7m_nvic.c
+++ b/hw/intc/armv7m_nvic.c
@@ -776,6 +776,14 @@ static uint32_t nvic_readl(NVICState *s, uint32_t offset, MemTxAttrs attrs)
     switch (offset) {
     case 4: /* Interrupt Control Type.  */
         return ((s->num_irq - NVIC_FIRST_IRQ) / 32) - 1;
+    case 0xc: /* CPPWR */
+        if (!arm_feature(&cpu->env, ARM_FEATURE_V8)) {
+            goto bad_offset;
+        }
+        /* We make the IMPDEF choice that nothing can ever go into a
+         * non-retentive power state, which allows us to RAZ/WI this.
+         */
+        return 0;
     case 0x380 ... 0x3bf: /* NVIC_ITNS<n> */
     {
         int startvec = 8 * (offset - 0x380) + NVIC_FIRST_IRQ;
@@ -1175,6 +1183,12 @@ static void nvic_writel(NVICState *s, uint32_t offset, uint32_t value,
     ARMCPU *cpu = s->cpu;
 
     switch (offset) {
+    case 0xc: /* CPPWR */
+        if (!arm_feature(&cpu->env, ARM_FEATURE_V8)) {
+            goto bad_offset;
+        }
+        /* Make the IMPDEF choice to RAZ/WI this. */
+        break;
     case 0x380 ... 0x3bf: /* NVIC_ITNS<n> */
     {
         int startvec = 8 * (offset - 0x380) + NVIC_FIRST_IRQ;