[PATCH v2 4/4] NEWS: qemu: add multi boot device support on s390x
Signed-off-by: Boris Fiuczynski <fiuczy(a)linux.ibm.com>
---
NEWS.rst | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/NEWS.rst b/NEWS.rst
index 34028d59aa..b79f1d0245 100644
--- a/NEWS.rst
+++ b/NEWS.rst
@@ -17,6 +17,22 @@ v10.10.0 (unreleased)
* **New features**
+ * qemu: add multi boot device support on s390x
+
+ For classical mainframe guests (i.e. LPAR or z/VM installations), you always
+ have to explicitly specify the disk where you want to boot from (or "IPL"
+ from, in s390x-speak -- IPL means "Initial Program Load").
+
+ In the past QEMU only used the first device in the boot order to IPL from.
+ With the new multi boot device support on s390x that is available with QEMU
+ version 9.2 and newer, this limitation is lifted. If the IPL fails for the
+ first device with the lowest boot index, the device with the second lowest
+ boot index will be tried and so on until IPL is successful or there are no
+ remaining boot devices to try.
+
+ Limitation: The s390x BIOS will try to IPL up to 8 total devices, any number
+ of which may be disks or network devices.
+
* **Improvements**
* **Bug fixes**
--
2.45.0