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-rw-r--r--hw/intc/armv7m_nvic.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/hw/intc/armv7m_nvic.c b/hw/intc/armv7m_nvic.c
index cf233c0561..01e331ab1e 100644
--- a/hw/intc/armv7m_nvic.c
+++ b/hw/intc/armv7m_nvic.c
@@ -1483,6 +1483,12 @@ static uint32_t nvic_readl(NVICState *s, uint32_t offset, MemTxAttrs attrs)
return 0;
}
return cpu->env.v7m.sfar;
+ case 0xf04: /* RFSR */
+ if (!cpu_isar_feature(aa32_ras, cpu)) {
+ goto bad_offset;
+ }
+ /* We provide minimal-RAS only: RFSR is RAZ/WI */
+ return 0;
case 0xf34: /* FPCCR */
if (!cpu_isar_feature(aa32_vfp_simd, cpu)) {
return 0;
@@ -1611,6 +1617,7 @@ static void nvic_writel(NVICState *s, uint32_t offset, uint32_t value,
R_V7M_AIRCR_PRIGROUP_SHIFT,
R_V7M_AIRCR_PRIGROUP_LENGTH);
}
+ /* AIRCR.IESB is RAZ/WI because we implement only minimal RAS */
if (attrs.secure) {
/* These bits are only writable by secure */
cpu->env.v7m.aircr = value &
@@ -2026,6 +2033,12 @@ static void nvic_writel(NVICState *s, uint32_t offset, uint32_t value,
}
break;
}
+ case 0xf04: /* RFSR */
+ if (!cpu_isar_feature(aa32_ras, cpu)) {
+ goto bad_offset;
+ }
+ /* We provide minimal-RAS only: RFSR is RAZ/WI */
+ break;
case 0xf34: /* FPCCR */
if (cpu_isar_feature(aa32_vfp_simd, cpu)) {
/* Not all bits here are banked. */