[PATCH V8 09/39] cpr: register blockers

[Steve Sistare <steven.sistare@oracle.com>]

Register the known cpr blockers.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
---
 accel/xen/xen-all.c    | 3 +++
 backends/hostmem-epc.c | 6 ++++++
 migration/migration.c  | 6 ++++++
 replay/replay.c        | 4 ++++
 4 files changed, 19 insertions(+)

diff --git a/accel/xen/xen-all.c b/accel/xen/xen-all.c
index 69aa7d0..9dd0dc6 100644
--- a/accel/xen/xen-all.c
+++ b/accel/xen/xen-all.c
@@ -21,6 +21,7 @@
 #include "sysemu/runstate.h"
 #include "migration/misc.h"
 #include "migration/global_state.h"
+#include "migration/cpr.h"
 #include "hw/boards.h"
 
 //#define DEBUG_XEN
@@ -181,6 +182,8 @@ static int xen_init(MachineState *ms)
      * opt out of system RAM being allocated by generic code
      */
     mc->default_ram_id = NULL;
+
+    cpr_add_blocker_str("xen does not support cpr", &error_fatal, CPR_MODE_ALL);
     return 0;
 }
 
diff --git a/backends/hostmem-epc.c b/backends/hostmem-epc.c
index cb06255..094fed9 100644
--- a/backends/hostmem-epc.c
+++ b/backends/hostmem-epc.c
@@ -16,6 +16,7 @@
 #include "qapi/error.h"
 #include "sysemu/hostmem.h"
 #include "hw/i386/hostmem-epc.h"
+#include "migration/cpr.h"
 
 static void
 sgx_epc_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
@@ -23,6 +24,7 @@ sgx_epc_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
     uint32_t ram_flags;
     char *name;
     int fd;
+    Error *blocker = NULL;
 
     if (!backend->size) {
         error_setg(errp, "can't create backend with size 0");
@@ -41,6 +43,10 @@ sgx_epc_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
     memory_region_init_ram_from_fd(&backend->mr, OBJECT(backend),
                                    name, backend->size, ram_flags,
                                    fd, 0, errp);
+
+    error_setg(&blocker, "RAM_PROTECTED block %s does not support cpr", name);
+    cpr_add_blocker(&blocker, errp, CPR_MODE_ALL);
+
     g_free(name);
 }
 
diff --git a/migration/migration.c b/migration/migration.c
index 31739b2..1451bae 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -32,6 +32,7 @@
 #include "savevm.h"
 #include "qemu-file-channel.h"
 #include "qemu-file.h"
+#include "migration/cpr.h"
 #include "migration/vmstate.h"
 #include "block/block.h"
 #include "qapi/error.h"
@@ -1283,6 +1284,11 @@ static bool migrate_caps_check(bool *cap_list,
         return false;
     }
 
+    if (cap_list[MIGRATION_CAPABILITY_X_COLO]) {
+        return cpr_add_blocker_str("x-colo is not compatible with cpr",
+                                   errp, CPR_MODE_ALL);
+    }
+
     return true;
 }
 
diff --git a/replay/replay.c b/replay/replay.c
index 4c396bb..eb5456f 100644
--- a/replay/replay.c
+++ b/replay/replay.c
@@ -19,6 +19,7 @@
 #include "qemu/option.h"
 #include "sysemu/cpus.h"
 #include "qemu/error-report.h"
+#include "migration/cpr.h"
 
 /* Current version of the replay mechanism.
    Increase it when file format changes. */
@@ -232,6 +233,9 @@ static void replay_enable(const char *fname, int mode)
     const char *fmode = NULL;
     assert(!replay_file);
 
+    cpr_add_blocker_str("replay is not compatible with cpr",
+                        &error_fatal, CPR_MODE_ALL);
+
     switch (mode) {
     case REPLAY_MODE_RECORD:
         fmode = "wb";
-- 
1.8.3.1