hw_compat modes only take into account their base name.
But if a device is created with (non)-transitional, then the compat
values are not used, causing migrating issues.
This commit adds their (non)-transitional entries with the same settings
as the base entry.
Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1999141
Signed-off-by: Jean-Louis Dupond <jean-louis@dupond.be>
---
include/hw/qdev-core.h | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index 4ff19c714b..5726825c2d 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -293,6 +293,30 @@ typedef struct GlobalProperty {
bool optional;
} GlobalProperty;
+
+/**
+ * Helper to add (non)transitional compat properties
+ */
+static inline void
+compat_props_add_transitional(GPtrArray *arr, GlobalProperty *prop)
+{
+ GlobalProperty *transitional = g_new0(typeof(*transitional), 1);
+ transitional->driver = g_strdup_printf("%s-transitional", prop->driver);
+ transitional->property = g_strdup(prop->property);
+ transitional->value = g_strdup(prop->value);
+ transitional->used = prop->used;
+ transitional->optional = prop->optional;
+ g_ptr_array_add(arr, (void *)transitional);
+
+ GlobalProperty *non_transitional = g_new0(typeof(*non_transitional), 1);
+ non_transitional->driver = g_strdup_printf("%s-non-transitional",
prop->driver);
+ non_transitional->property = g_strdup(prop->property);
+ non_transitional->value = g_strdup(prop->value);
+ non_transitional->used = prop->used;
+ non_transitional->optional = prop->optional;
+ g_ptr_array_add(arr, (void *)non_transitional);
+}
+
static inline void
compat_props_add(GPtrArray *arr,
GlobalProperty props[], size_t nelem)
@@ -300,6 +324,16 @@ compat_props_add(GPtrArray *arr,
int i;
for (i = 0; i < nelem; i++) {
g_ptr_array_add(arr, (void *)&props[i]);
+ if (g_str_equal(props[i].driver, "vhost-user-blk-pci") ||
+ g_str_equal(props[i].driver, "virtio-scsi-pci") ||
+ g_str_equal(props[i].driver, "virtio-blk-pci") ||
+ g_str_equal(props[i].driver, "virtio-balloon-pci") ||
+ g_str_equal(props[i].driver, "virtio-serial-pci") ||
+ g_str_equal(props[i].driver, "virtio-9p-pci") ||
+ g_str_equal(props[i].driver, "virtio-net-pci") ||
+ g_str_equal(props[i].driver, "virtio-rng-pci")) {
+ compat_props_add_transitional(arr, &props[i]);
+ }
}
}