[Qemu-devel] [PATCH 1/3] armv7-m: exit on external reset request

[Michael Davidsaver <mdavidsaver@gmail.com>]

Implement the SYSRESETREQ bit of the AIRCR register
for armv7-m (ie. cortex-m3).
---
 hw/intc/armv7m_nvic.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/hw/intc/armv7m_nvic.c b/hw/intc/armv7m_nvic.c
index 3ec8408..a671d84 100644
--- a/hw/intc/armv7m_nvic.c
+++ b/hw/intc/armv7m_nvic.c
@@ -15,6 +15,7 @@
 #include "hw/arm/arm.h"
 #include "exec/address-spaces.h"
 #include "gic_internal.h"
+#include "sysemu/sysemu.h"
 
 typedef struct {
     GICState gic;
@@ -348,10 +349,13 @@ static void nvic_writel(nvic_state *s, uint32_t offset, uint32_t value)
         break;
     case 0xd0c: /* Application Interrupt/Reset Control.  */
         if ((value >> 16) == 0x05fa) {
+            if (value & 4) {
+                qemu_system_reset_request();
+            }
             if (value & 2) {
                 qemu_log_mask(LOG_UNIMP, "VECTCLRACTIVE unimplemented\n");
             }
-            if (value & 5) {
+            if (value & 1) {
                 qemu_log_mask(LOG_UNIMP, "AIRCR system reset unimplemented\n");
             }
             if (value & 0x700) {
-- 
2.1.4