[Qemu-devel] [PATCH 18/43] windbg: windbg_vm_stop

[Mihail Abakumov]

Added function for stop vm. Also, ExceptionStateChange data is generated and 
sent here.

Signed-off-by: Mihail Abakumov <mikhail.abaku...@ispras.ru>
Signed-off-by: Pavel Dovgalyuk <dovga...@ispras.ru>
Signed-off-by: Dmitriy Koltunov <koltu...@ispras.ru>
---
 windbgstub.c |   13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/windbgstub.c b/windbgstub.c
index d22eea70aa..3a13d22349 100755
--- a/windbgstub.c
+++ b/windbgstub.c
@@ -68,7 +68,6 @@ static uint32_t compute_checksum(uint8_t *data, uint16_t len)
     return checksum;
 }
 
-__attribute__ ((unused)) /* unused yet */
 static void windbg_send_data_packet(uint8_t *data, uint16_t byte_count,
                                     uint16_t type)
 {
@@ -113,6 +112,16 @@ static void windbg_send_control_packet(uint16_t type)
     windbg_state->ctrl_packet_id ^= 1;
 }
 
+static void windbg_vm_stop(void)
+{
+    CPUState *cpu = qemu_get_cpu(0);
+    vm_stop(RUN_STATE_PAUSED);
+
+    SizedBuf buf = kd_gen_exception_sc(cpu);
+    windbg_send_data_packet(buf.data, buf.size, PACKET_TYPE_KD_STATE_CHANGE64);
+    SBUF_FREE(buf);
+}
+
 static void windbg_process_data_packet(ParsingContext *ctx)
 {}
 
@@ -126,7 +135,7 @@ static void windbg_ctx_handler(ParsingContext *ctx)
         break;
 
     case RESULT_BREAKIN_BYTE:
-        vm_stop(RUN_STATE_PAUSED);
+        windbg_vm_stop();
         break;
 
     case RESULT_CONTROL_PACKET: