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NEWS: qemu: add multi boot device support on s390x

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Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
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Boris Fiuczynski 2024-11-08 12:05:35 +01:00 committed by Peter Krempa
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commit 9dc2226e68
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NEWS.rst
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@ -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**