[Qemu-devel] [RFC v2 2/6] qtest: add support for target-i386 -M pc

[Anthony Liguori <aliguori@us.ibm.com>]

This involves forcing the CPU into the halted state if qtest is enabled and
replacing the local APIC with the qtest interrupt controller.

It should be pretty straight forward to do the same for other machine types on
other architectures.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
 hw/pc.c      |    7 ++++++-
 hw/pc_piix.c |    9 ++++++---
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/hw/pc.c b/hw/pc.c
index 33778fe..bba8adc 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -43,6 +43,7 @@
 #include "ui/qemu-spice.h"
 #include "memory.h"
 #include "exec-memory.h"
+#include "qtest.h"
 
 /* output Bochs bios info messages */
 //#define DEBUG_BIOS
@@ -926,7 +927,11 @@ static void pc_cpu_reset(void *opaque)
     CPUState *env = opaque;
 
     cpu_reset(env);
-    env->halted = !cpu_is_bsp(env);
+    if (qtest_enabled()) {
+        env->halted = 1;
+    } else {
+        env->halted = !cpu_is_bsp(env);
+    }
 }
 
 static CPUState *pc_new_cpu(const char *cpu_model)
diff --git a/hw/pc_piix.c b/hw/pc_piix.c
index 970f43c..570d5fb 100644
--- a/hw/pc_piix.c
+++ b/hw/pc_piix.c
@@ -46,6 +46,7 @@
 #ifdef CONFIG_XEN
 #  include <xen/hvm/hvm_info_table.h>
 #endif
+#include "qtest.h"
 
 #define MAX_IDE_BUS 2
 
@@ -152,11 +153,13 @@ static void pc_init1(MemoryRegion *system_memory,
     }
     isa_bus_irqs(gsi);
 
-    if (!xen_enabled()) {
+    if (xen_enabled()) {
+        i8259 = xen_interrupt_controller_init();
+    } else if (qtest_enabled()) {
+        i8259 = qtest_interrupt_controller_init();
+    } else {
         cpu_irq = pc_allocate_cpu_irq();
         i8259 = i8259_init(cpu_irq[0]);
-    } else {
-        i8259 = xen_interrupt_controller_init();
     }
 
     for (i = 0; i < ISA_NUM_IRQS; i++) {
-- 
1.7.4.1