From e9a5de35e8188c055a72e6c1cf5d824699ad5821 Mon Sep 17 00:00:00 2001
From: Alex Lyn <alex.lyn@antgroup.com>
Date: Mon, 15 Sep 2025 15:46:17 +0800
Subject: [PATCH] runtime-rs: Enable share-rw=true when hotplug block device
 within qemu

Support for the share-rw=true parameter has been added. While this
parameter is essential for maintaining data consistency across multiple
QEMU instances sharing a backend disk image, its implementation also
serves to standardize parameters with the block device hotplug
functionality in kata-runtime/qemu.

Signed-off-by: Alex Lyn <alex.lyn@antgroup.com>
---
 src/runtime-rs/crates/hypervisor/src/qemu/qmp.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/runtime-rs/crates/hypervisor/src/qemu/qmp.rs b/src/runtime-rs/crates/hypervisor/src/qemu/qmp.rs
index a3fb754433..7b3b14310b 100644
--- a/src/runtime-rs/crates/hypervisor/src/qemu/qmp.rs
+++ b/src/runtime-rs/crates/hypervisor/src/qemu/qmp.rs
@@ -634,6 +634,7 @@ impl Qmp {
             // add SCSI frontend device
             blkdev_add_args.insert("scsi-id".to_string(), scsi_id.into());
             blkdev_add_args.insert("lun".to_string(), lun.into());
+            blkdev_add_args.insert("share-rw".to_string(), true.into());
 
             self.qmp
                 .execute(&qmp::device_add {
@@ -654,6 +655,7 @@ impl Qmp {
         } else {
             let (bus, slot) = self.find_free_slot()?;
             blkdev_add_args.insert("addr".to_owned(), format!("{:02}", slot).into());
+            blkdev_add_args.insert("share-rw".to_string(), true.into());
 
             self.qmp
                 .execute(&qmp::device_add {