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* Thu Aug 20 2026 Miroslav Rezanina <mrezanin@redhat.com> - 10.1.0-27

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- kvm-pc-bios-s390-ccw-Always-reset-virtio-device-on-faile.patch [RHEL-151317]
- Resolves: RHEL-151317
  (RHEL10 - KVM full Boot order support -- Guest is crashing for the invalid boot device(<boot order='1'/> -- add-on qcow2 file))
This commit is contained in:
Miroslav Rezanina 2026-08-20 09:58:09 +02:00
parent a0326fabe8
commit b001bd4112
2 changed files with 53 additions and 1 deletions
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45
kvm-pc-bios-s390-ccw-Always-reset-virtio-device-on-faile.patch Normal file
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@ -0,0 +1,45 @@
From bad45ca2d89e152adfee22e2d6282d67262f1025 Mon Sep 17 00:00:00 2001
From: Jared Rossi <jrossi@linux.ibm.com>
Date: Sun, 8 Mar 2026 20:35:49 -0400
Subject: [PATCH] pc-bios/s390-ccw: Always reset virtio device on failed boot
attempt
RH-Author: Cornelia Huck <cohuck@redhat.com>
RH-MergeRequest: 516: pc-bios/s390-ccw: Always reset virtio device on failed boot attempt
RH-Jira: RHEL-151317
RH-Acked-by: acordeir <None>
RH-Acked-by: Richard W.M. Jones <rjones@redhat.com>
RH-Commit: [1/1] a803bf75e4205bca950eb00793e3911dbc62d60b (cohuck/qemu-kvm-cs)
The virtio spec necessitates that live virtqueues must not be altered. Reset
the failed device so that the queues are not live before we attempt to boot any
fallback devices.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Jared Rossi <jrossi@linux.ibm.com>
Message-ID: <20260309003601.242634-4-jrossi@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit dd8c8f16c0244fd5393dc305501675ca1ae2990a)
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
---
pc-bios/s390-ccw/main.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c
index 76bf743900..8e2c99bee1 100644
--- a/pc-bios/s390-ccw/main.c
+++ b/pc-bios/s390-ccw/main.c
@@ -277,7 +277,8 @@ static void ipl_boot_device(void)
break;
case CU_TYPE_VIRTIO:
if (virtio_setup() == 0) {
- zipl_load();
+ zipl_load(); /* only return on error */
+ virtio_reset(virtio_get_device());
}
break;
default:
--
2.52.0

9
qemu-kvm.spec
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@ -143,7 +143,7 @@ Obsoletes: %{name}-block-ssh <= %{epoch}:%{version} \
Summary: QEMU is a machine emulator and virtualizer
Name: qemu-kvm
Version: 10.1.0
Release: 26%{?rcrel}%{?dist}%{?cc_suffix}
Release: 27%{?rcrel}%{?dist}%{?cc_suffix}
# Epoch because we pushed a qemu-1.0 package. AIUI this can't ever be dropped
# Epoch 15 used for RHEL 8
# Epoch 17 used for RHEL 9 (due to release versioning offset in RHEL 8.5)
@ -1674,6 +1674,8 @@ Patch478: kvm-s390x-sclpcpi-check-event-length-field-before-readin.patch
Patch479: kvm-s390x-css-firm-up-handling-of-chained-TIC-CCWs.patch
# For RHEL-224652 - Backport vfio/region: Clarify dma-buf failure messages
Patch480: kvm-vfio-region-Clarify-dma-buf-failure-messages.patch
# For RHEL-151317 - RHEL10 - KVM full Boot order support -- Guest is crashing for the invalid boot device(<boot order='1'/> -- add-on qcow2 file)
Patch481: kvm-pc-bios-s390-ccw-Always-reset-virtio-device-on-faile.patch
%if %{have_clang}
BuildRequires: clang
@ -2756,6 +2758,11 @@ useradd -r -u 107 -g qemu -G kvm -d / -s /sbin/nologin \
%endif
%changelog
* Thu Aug 20 2026 Miroslav Rezanina <mrezanin@redhat.com> - 10.1.0-27
- kvm-pc-bios-s390-ccw-Always-reset-virtio-device-on-faile.patch [RHEL-151317]
- Resolves: RHEL-151317
(RHEL10 - KVM full Boot order support -- Guest is crashing for the invalid boot device(<boot order='1'/> -- add-on qcow2 file))
* Tue Aug 11 2026 Miroslav Rezanina <mrezanin@redhat.com> - 10.1.0-26
- kvm-vfio-region-Clarify-dma-buf-failure-messages.patch [RHEL-224652]
- Resolves: RHEL-224652