Merge branch 'ppc-1.0' of git://repo.or.cz/qemu/agraf

8 files changed, 138 insertions, 19 deletions

diff --git a/console.c b/console.c
index f6fe44195..ed6a653fd 100644
--- a/console.c
+++ b/console.c
@@ -186,7 +186,9 @@ void vga_hw_screen_dump(const char *filename)
         consoles[0]->hw_screen_dump(consoles[0]->hw, filename);
     }
 
-    console_select(previous_active_console->index);
+    if (previous_active_console) {
+        console_select(previous_active_console->index);
+    }
 }
 
 void vga_hw_text_update(console_ch_t *chardata)
diff --git a/hw/ppce500_spin.c b/hw/ppce500_spin.c
index cccd94073..2b527282b 100644
--- a/hw/ppce500_spin.c
+++ b/hw/ppce500_spin.c
@@ -112,6 +112,7 @@ static void spin_kick(void *data)
 
     env->halted = 0;
     env->exception_index = -1;
+    env->stopped = 0;
     qemu_cpu_kick(env);
 }
 
diff --git a/hw/spapr.c b/hw/spapr.c
index 2b901f105..5a98d8651 100644
--- a/hw/spapr.c
+++ b/hw/spapr.c
@@ -351,6 +351,8 @@ static void spapr_finalize_fdt(sPAPREnvironment *spapr,
         fprintf(stderr, "Couldn't set up RTAS device tree properties\n");
     }
 
+    spapr_populate_chosen_stdout(fdt, spapr->vio_bus);
+
     _FDT((fdt_pack(fdt)));
 
     cpu_physical_memory_write(fdt_addr, fdt, fdt_totalsize(fdt));
diff --git a/hw/spapr_pci.c b/hw/spapr_pci.c
index 716258854..9b6a032cc 100644
--- a/hw/spapr_pci.c
+++ b/hw/spapr_pci.c
@@ -454,7 +454,7 @@ int spapr_populate_pci_devices(sPAPRPHBState *phb,
         reg[0].size = 0;
 
         n = 0;
-        for (i = 0; i < PCI_NUM_REGIONS; ++i) {
+        for (i = 0; i < ARRAY_SIZE(bars); ++i) {
             if (0 == dev->io_regions[i].size) {
                 continue;
             }
diff --git a/hw/spapr_vio.c b/hw/spapr_vio.c
index 2dcc0361e..464fe8744 100644
--- a/hw/spapr_vio.c
+++ b/hw/spapr_vio.c
@@ -749,21 +749,95 @@ static void spapr_vio_register_devices(void)
 device_init(spapr_vio_register_devices)
 
 #ifdef CONFIG_FDT
+static int compare_reg(const void *p1, const void *p2)
+{
+    VIOsPAPRDevice const *dev1, *dev2;
+
+    dev1 = (VIOsPAPRDevice *)*(DeviceState **)p1;
+    dev2 = (VIOsPAPRDevice *)*(DeviceState **)p2;
+
+    if (dev1->reg < dev2->reg) {
+        return -1;
+    }
+    if (dev1->reg == dev2->reg) {
+        return 0;
+    }
+
+    /* dev1->reg > dev2->reg */
+    return 1;
+}
+
 int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt)
 {
-    DeviceState *qdev;
-    int ret = 0;
+    DeviceState *qdev, **qdevs;
+    int i, num, ret = 0;
 
+    /* Count qdevs on the bus list */
+    num = 0;
     QTAILQ_FOREACH(qdev, &bus->bus.children, sibling) {
-        VIOsPAPRDevice *dev = (VIOsPAPRDevice *)qdev;
+        num++;
+    }
+
+    /* Copy out into an array of pointers */
+    qdevs = g_malloc(sizeof(qdev) * num);
+    num = 0;
+    QTAILQ_FOREACH(qdev, &bus->bus.children, sibling) {
+        qdevs[num++] = qdev;
+    }
+
+    /* Sort the array */
+    qsort(qdevs, num, sizeof(qdev), compare_reg);
+
+    /* Hack alert. Give the devices to libfdt in reverse order, we happen
+     * to know that will mean they are in forward order in the tree. */
+    for (i = num - 1; i >= 0; i--) {
+        VIOsPAPRDevice *dev = (VIOsPAPRDevice *)(qdevs[i]);
 
         ret = vio_make_devnode(dev, fdt);
 
         if (ret < 0) {
-            return ret;
+            goto out;
         }
     }
 
-    return 0;
+    ret = 0;
+out:
+    free(qdevs);
+
+    return ret;
+}
+
+int spapr_populate_chosen_stdout(void *fdt, VIOsPAPRBus *bus)
+{
+    VIOsPAPRDevice *dev;
+    char *name, *path;
+    int ret, offset;
+
+    dev = spapr_vty_get_default(bus);
+    if (!dev)
+        return 0;
+
+    offset = fdt_path_offset(fdt, "/chosen");
+    if (offset < 0) {
+        return offset;
+    }
+
+    name = vio_format_dev_name(dev);
+    if (!name) {
+        return -ENOMEM;
+    }
+
+    if (asprintf(&path, "/vdevice/%s", name) < 0) {
+        path = NULL;
+        ret = -ENOMEM;
+        goto out;
+    }
+
+    ret = fdt_setprop_string(fdt, offset, "linux,stdout-path", path);
+out:
+    free(name);
+    free(path);
+
+    return ret;
 }
 #endif /* CONFIG_FDT */
diff --git a/hw/spapr_vio.h b/hw/spapr_vio.h
index a325a5f4b..9fcd304ad 100644
--- a/hw/spapr_vio.h
+++ b/hw/spapr_vio.h
@@ -83,6 +83,7 @@ extern VIOsPAPRBus *spapr_vio_bus_init(void);
 extern VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg);
 extern void spapr_vio_bus_register_withprop(VIOsPAPRDeviceInfo *info);
 extern int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt);
+extern int spapr_populate_chosen_stdout(void *fdt, VIOsPAPRBus *bus);
 
 extern int spapr_vio_signal(VIOsPAPRDevice *dev, target_ulong mode);
 
@@ -108,6 +109,8 @@ void spapr_vty_create(VIOsPAPRBus *bus, uint32_t reg, CharDriverState *chardev);
 void spapr_vlan_create(VIOsPAPRBus *bus, uint32_t reg, NICInfo *nd);
 void spapr_vscsi_create(VIOsPAPRBus *bus, uint32_t reg);
 
+VIOsPAPRDevice *spapr_vty_get_default(VIOsPAPRBus *bus);
+
 int spapr_tce_set_bypass(uint32_t unit, uint32_t enable);
 void spapr_vio_quiesce(void);
 
diff --git a/hw/spapr_vty.c b/hw/spapr_vty.c
index f23cc3623..386ccf720 100644
--- a/hw/spapr_vty.c
+++ b/hw/spapr_vty.c
@@ -156,24 +156,53 @@ static VIOsPAPRDeviceInfo spapr_vty = {
     },
 };
 
+VIOsPAPRDevice *spapr_vty_get_default(VIOsPAPRBus *bus)
+{
+    VIOsPAPRDevice *sdev, *selected;
+    DeviceState *iter;
+
+    /*
+     * To avoid the console bouncing around we want one VTY to be
+     * the "default". We haven't really got anything to go on, so
+     * arbitrarily choose the one with the lowest reg value.
+     */
+
+    selected = NULL;
+    QTAILQ_FOREACH(iter, &bus->bus.children, sibling) {
+        /* Only look at VTY devices */
+        if (iter->info != &spapr_vty.qdev) {
+            continue;
+        }
+
+        sdev = DO_UPCAST(VIOsPAPRDevice, qdev, iter);
+
+        /* First VTY we've found, so it is selected for now */
+        if (!selected) {
+            selected = sdev;
+            continue;
+        }
+
+        /* Choose VTY with lowest reg value */
+        if (sdev->reg < selected->reg) {
+            selected = sdev;
+        }
+    }
+
+    return selected;
+}
+
 static VIOsPAPRDevice *vty_lookup(sPAPREnvironment *spapr, target_ulong reg)
 {
     VIOsPAPRDevice *sdev;
 
     sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
     if (!sdev && reg == 0) {
-        DeviceState *qdev;
-
         /* Hack for kernel early debug, which always specifies reg==0.
-         * We search all VIO devices, and grab the first available vty
-         * device.  This attempts to mimic existing PowerVM behaviour
+         * We search all VIO devices, and grab the vty with the lowest
+         * reg.  This attempts to mimic existing PowerVM behaviour
          * (early debug does work there, despite having no vty with
          * reg==0. */
-        QTAILQ_FOREACH(qdev, &spapr->vio_bus->bus.children, sibling) {
-            if (qdev->info == &spapr_vty.qdev) {
-                return DO_UPCAST(VIOsPAPRDevice, qdev, qdev);
-            }
-        }
+        return spapr_vty_get_default(spapr->vio_bus);
     }
 
     return sdev;
diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c
index 429349fb9..0410901b5 100644
--- a/target-ppc/kvm.c
+++ b/target-ppc/kvm.c
@@ -504,7 +504,7 @@ void kvm_arch_post_run(CPUState *env, struct kvm_run *run)
 
 int kvm_arch_process_async_events(CPUState *env)
 {
-    return 0;
+    return env->halted;
 }
 
 static int kvmppc_handle_halt(CPUState *env)
@@ -838,12 +838,18 @@ void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t window_size, int *pfd)
     int fd;
     void *table;
 
+    /* Must set fd to -1 so we don't try to munmap when called for
+     * destroying the table, which the upper layers -will- do
+     */
+    *pfd = -1;
     if (!cap_spapr_tce) {
         return NULL;
     }
 
     fd = kvm_vm_ioctl(kvm_state, KVM_CREATE_SPAPR_TCE, &args);
     if (fd < 0) {
+        fprintf(stderr, "KVM: Failed to create TCE table for liobn 0x%x\n",
+                liobn);
         return NULL;
     }
 
@@ -852,6 +858,8 @@ void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t window_size, int *pfd)
 
     table = mmap(NULL, len, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
     if (table == MAP_FAILED) {
+        fprintf(stderr, "KVM: Failed to map TCE table for liobn 0x%x\n",
+                liobn);
         close(fd);
         return NULL;
     }
@@ -871,8 +879,8 @@ int kvmppc_remove_spapr_tce(void *table, int fd, uint32_t window_size)
     len = (window_size / SPAPR_VIO_TCE_PAGE_SIZE)*sizeof(VIOsPAPR_RTCE);
     if ((munmap(table, len) < 0) ||
         (close(fd) < 0)) {
-        fprintf(stderr, "KVM: Unexpected error removing KVM SPAPR TCE "
-                "table: %s", strerror(errno));
+        fprintf(stderr, "KVM: Unexpected error removing TCE table: %s",
+                strerror(errno));
         /* Leak the table */
     }