File 948e429f-qemu-caps-arm-chardev.patch of Package libvirt.9596

commit 948e429f485056e08f9f33bb577ff610a998ce70
Author: Cole Robinson <crobinso@redhat.com>
Date:   Mon Jun 26 11:41:30 2017 -0400

    qemu: caps: Tweak arm conditional in SupportsChardev
    
    Rather than try to whitelist all device configs that can't use
    -chardev, blacklist the only one that really can't, which is the
    default serial/console target type=isa case.
    
    ISA specifically isn't a valid config for arm/aarch64, but we've
    always implicitly treated it to mean 'default platform device'.
    
    Reviewed-by: Andrea Bolognani <abologna@redhat.com>
    Signed-off-by: Cole Robinson <crobinso@redhat.com>

Index: libvirt-3.3.0/src/qemu/qemu_capabilities.c
===================================================================
--- libvirt-3.3.0.orig/src/qemu/qemu_capabilities.c
+++ libvirt-3.3.0/src/qemu/qemu_capabilities.c
@@ -5499,15 +5499,16 @@ virQEMUCapsSupportsChardev(const virDoma
             return false;
     }
 
-    if ((def->os.arch != VIR_ARCH_ARMV7L) && (def->os.arch != VIR_ARCH_AARCH64))
-        return true;
+    if (def->os.arch == VIR_ARCH_ARMV7L || def->os.arch == VIR_ARCH_AARCH64) {
+        /* TARGET_TYPE_ISA here really means 'the default', which we
+           treat as whatever the built in platform serial device is on.
+           And for platform devices we can't use -chardev */
+        if (chr->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL &&
+            chr->targetType == VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_ISA)
+            return false;
+    }
 
-    /* This may not be true for all ARM machine types, but at least
-     * the only supported non-virtio serial devices of vexpress and versatile
-     * don't have the -chardev property wired up. */
-    return (chr->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_MMIO ||
-            (chr->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE &&
-             chr->targetType == VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_VIRTIO));
+    return true;
 }