vhost: disable metadata prefetch optimization

This seems to cause guest and host memory corruption. Disable for now until we get a better handle on that. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
mariux64 · Jul 26, 2019 · 73f628e · 73f628e
1 parent ae24fb4
commit 73f628e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
@@ -96,7 +96,7 @@ struct vhost_uaddr {
 };
 
 #if defined(CONFIG_MMU_NOTIFIER) && ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE == 0
-#define VHOST_ARCH_CAN_ACCEL_UACCESS 1
+#define VHOST_ARCH_CAN_ACCEL_UACCESS 0
 #else
 #define VHOST_ARCH_CAN_ACCEL_UACCESS 0
 #endif