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[RFC,11/26] migration/options: Mapped-ram is not channel header compatible

Message ID dc4bb55715e0cf079cc59f013a4a0680f0c53c5c.1713269378.git.maciej.szmigiero@oracle.com
State New
Headers show
Series Multifd 🔀 device state transfer support with VFIO consumer | expand

Commit Message

Maciej S. Szmigiero April 16, 2024, 2:42 p.m. UTC 
From: "Maciej S. Szmigiero" <maciej.szmigiero@oracle.com>

Mapped-ram is only available for multifd migration without channel
header - add an appropriate check to migration options.

Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
---
 migration/options.c | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/migration/options.c b/migration/options.c
index 8fd871cd956d..abb5b485badd 100644
--- a/migration/options.c
+++ b/migration/options.c
@@ -1284,6 +1284,13 @@  bool migrate_params_check(MigrationParameters *params, Error **errp)
         return false;
     }
 
+    if (migrate_mapped_ram() &&
+        params->has_multifd_channels && migrate_channel_header()) {
+        error_setg(errp,
+                   "Mapped-ram only available for multifd migration without channel header");
+        return false;
+    }
+
     if (params->has_x_vcpu_dirty_limit_period &&
         (params->x_vcpu_dirty_limit_period < 1 ||
          params->x_vcpu_dirty_limit_period > 1000)) {