summary refs log tree commit diff stats
path: root/hw/s390x/css.c
diff options
context:
space:
mode:
authorPaolo Bonzini <pbonzini@redhat.com>2024-05-09 19:00:34 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2024-05-10 15:45:15 +0200
commita55ae46683f289c46a0c0a807dbb89229a1e00cd (patch)
tree72e18acd2a2d6e9c0988dd6a51dbcc3d52fff371 /hw/s390x/css.c
parent9d1b0f5bf515a0dd8e4174d9f3aca2c549727ef6 (diff)
downloadfocaccia-qemu-a55ae46683f289c46a0c0a807dbb89229a1e00cd.tar.gz
focaccia-qemu-a55ae46683f289c46a0c0a807dbb89229a1e00cd.zip
s390: move css_migration_enabled from machine to css.c
The CSS subsystem uses global variables, just face the truth and use
a variable also for whether the CSS vmstate is in use; remove the
indirection of fetching it from the machine type, which makes the
TCG code depend unnecessarily on the virtio-ccw machine.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20240509170044.190795-4-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/s390x/css.c')
-rw-r--r--hw/s390x/css.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/hw/s390x/css.c b/hw/s390x/css.c
index 295530963a..b2d5327dbf 100644
--- a/hw/s390x/css.c
+++ b/hw/s390x/css.c
@@ -23,6 +23,8 @@
 #include "hw/s390x/s390-virtio-ccw.h"
 #include "hw/s390x/s390-ccw.h"
 
+bool css_migration_enabled = true;
+
 typedef struct CrwContainer {
     CRW crw;
     QTAILQ_ENTRY(CrwContainer) sibling;
@@ -180,7 +182,7 @@ static const VMStateDescription vmstate_orb = {
 
 static bool vmstate_schdev_orb_needed(void *opaque)
 {
-    return css_migration_enabled();
+    return css_migration_enabled;
 }
 
 static const VMStateDescription vmstate_schdev_orb = {
@@ -388,7 +390,7 @@ static int subch_dev_post_load(void *opaque, int version_id)
         css_subch_assign(s->cssid, s->ssid, s->schid, s->devno, s);
     }
 
-    if (css_migration_enabled()) {
+    if (css_migration_enabled) {
         /* No compat voodoo to do ;) */
         return 0;
     }
@@ -412,7 +414,9 @@ static int subch_dev_post_load(void *opaque, int version_id)
 
 void css_register_vmstate(void)
 {
-    vmstate_register(NULL, 0, &vmstate_css, &channel_subsys);
+    if (css_migration_enabled) {
+        vmstate_register(NULL, 0, &vmstate_css, &channel_subsys);
+    }
 }
 
 IndAddr *get_indicator(hwaddr ind_addr, int len)