1 files changed, 5 insertions, 0 deletions
diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c
index 3f9dc89c6d..d9b8f24bb5 100644
--- a/hw/ide/qdev.c
+++ b/hw/ide/qdev.c
@@ -125,6 +125,11 @@ static int ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind)
     const char *serial;
     DriveInfo *dinfo;
 
+    if (dev->conf.discard_granularity && dev->conf.discard_granularity != 512) {
+        error_report("discard_granularity must be 512 for ide");
+        return -1;
+    }
+
     serial = dev->serial;
     if (!serial) {
         /* try to fall back to value set with legacy -drive serial=... */