From 9d9a79b0158242610468185b2c261bdc389523e9 Mon Sep 17 00:00:00 2001
From: blueswir1 <blueswir1@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Sun, 2 Nov 2008 10:51:05 +0000
Subject: [PATCH] Halt the CPU using a qemu_irq

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5601 c046a42c-6fe2-441c-8c8c-71466251a162
---
 hw/slavio_misc.c |  8 ++++----
 hw/sun4m.c       | 12 ++++++++++--
 hw/sun4m.h       |  2 +-
 3 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/hw/slavio_misc.c b/hw/slavio_misc.c
index 6a30f0c..2890cfd 100644
--- a/hw/slavio_misc.c
+++ b/hw/slavio_misc.c
@@ -50,7 +50,7 @@ typedef struct MiscState {
     uint8_t diag, mctrl;
     uint32_t sysctrl;
     uint16_t leds;
-    CPUState *env;
+    qemu_irq cpu_halt;
     qemu_irq fdc_tc;
 } MiscState;
 
@@ -256,7 +256,7 @@ static void apc_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
     MiscState *s = opaque;
 
     MISC_DPRINTF("Write power management %2.2x\n", val & 0xff);
-    cpu_interrupt(s->env, CPU_INTERRUPT_HALT);
+    qemu_irq_raise(s->cpu_halt);
 }
 
 static uint32_t apc_mem_readb(void *opaque, target_phys_addr_t addr)
@@ -417,7 +417,7 @@ static int slavio_misc_load(QEMUFile *f, void *opaque, int version_id)
 void *slavio_misc_init(target_phys_addr_t base, target_phys_addr_t power_base,
                        target_phys_addr_t aux1_base,
                        target_phys_addr_t aux2_base, qemu_irq irq,
-                       CPUState *env, qemu_irq **fdc_tc)
+                       qemu_irq cpu_halt, qemu_irq **fdc_tc)
 {
     int io;
     MiscState *s;
@@ -471,7 +471,7 @@ void *slavio_misc_init(target_phys_addr_t base, target_phys_addr_t power_base,
     }
 
     s->irq = irq;
-    s->env = env;
+    s->cpu_halt = cpu_halt;
     *fdc_tc = &s->fdc_tc;
 
     register_savevm("slavio_misc", base, 1, slavio_misc_save, slavio_misc_load,
diff --git a/hw/sun4m.c b/hw/sun4m.c
index f3c6501..7756e5e 100644
--- a/hw/sun4m.c
+++ b/hw/sun4m.c
@@ -360,6 +360,12 @@ static void secondary_cpu_reset(void *opaque)
     env->halted = 1;
 }
 
+static void cpu_halt_signal(void *opaque, int irq, int level)
+{
+    if (level && cpu_single_env)
+        cpu_interrupt(cpu_single_env, CPU_INTERRUPT_HALT);
+}
+
 static unsigned long sun4m_load_kernel(const char *kernel_filename,
                                        const char *initrd_filename,
                                        ram_addr_t RAM_size)
@@ -426,6 +432,7 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef, ram_addr_t RAM_size,
         *espdma_irq, *ledma_irq;
     qemu_irq *esp_reset, *le_reset;
     qemu_irq *fdc_tc;
+    qemu_irq *cpu_halt;
     unsigned long prom_offset, kernel_size;
     int ret;
     char buf[1024];
@@ -547,9 +554,10 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef, ram_addr_t RAM_size,
     slavio_serial_init(hwdef->serial_base, slavio_irq[hwdef->ser_irq],
                        serial_hds[1], serial_hds[0]);
 
+    cpu_halt = qemu_allocate_irqs(cpu_halt_signal, NULL, 1);
     slavio_misc = slavio_misc_init(hwdef->slavio_base, hwdef->apc_base,
                                    hwdef->aux1_base, hwdef->aux2_base,
-                                   slavio_irq[hwdef->me_irq], envs[0],
+                                   slavio_irq[hwdef->me_irq], cpu_halt[0],
                                    &fdc_tc);
 
     if (hwdef->fd_base != (target_phys_addr_t)-1) {
@@ -1575,7 +1583,7 @@ static void sun4c_hw_init(const struct sun4c_hwdef *hwdef, ram_addr_t RAM_size,
                        serial_hds[1], serial_hds[0]);
 
     slavio_misc = slavio_misc_init(0, -1, hwdef->aux1_base, -1,
-                                   slavio_irq[hwdef->me_irq], env, &fdc_tc);
+                                   slavio_irq[hwdef->me_irq], NULL, &fdc_tc);
 
     if (hwdef->fd_base != (target_phys_addr_t)-1) {
         /* there is zero or one floppy drive */
diff --git a/hw/sun4m.h b/hw/sun4m.h
index a208420..f6d822e 100644
--- a/hw/sun4m.h
+++ b/hw/sun4m.h
@@ -58,7 +58,7 @@ void slavio_serial_ms_kbd_init(target_phys_addr_t base, qemu_irq irq,
 void *slavio_misc_init(target_phys_addr_t base, target_phys_addr_t power_base,
                        target_phys_addr_t aux1_base,
                        target_phys_addr_t aux2_base, qemu_irq irq,
-                       CPUState *env, qemu_irq **fdc_tc);
+                       qemu_irq cpu_halt, qemu_irq **fdc_tc);
 void slavio_set_power_fail(void *opaque, int power_failing);
 
 /* cs4231.c */
-- 
2.7.4