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-rw-r--r--hw/ide/qdev.c5
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=... */