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From 51fcf352a97f2e99a6a3fb8ae663b45436304120 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= <clg@redhat.com>
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Date: Tue, 10 Jan 2023 14:25:34 +0100
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Subject: [PATCH 11/31] s390x/s390-virtio-ccw: Activate zPCI features on
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s390-ccw-virtio-rhel8.6.0
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Cédric Le Goater <clg@redhat.com>
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RH-MergeRequest: 133: s390x/s390-virtio-ccw: Activate zPCI features on s390-ccw-virtio-rhel8.6.0
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RH-Bugzilla: 2159408
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RH-Acked-by: Thomas Huth <thuth@redhat.com>
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RH-Acked-by: David Hildenbrand <david@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Commit: [1/1] 1ed82e56fe74a283a1726c4893dc3387e645072c (clegoate/qemu-kvm-c9s)
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commit c7b14d3af7 ("s390x/s390-virtio-ccw: Switch off zPCI enhancements
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on older machines") activated zPCI enhancement features (interpretation
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and forward assist) silently on the s390-ccw-virtio-rhel8.6.0 machine
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for RHEL8.8. It didn't seem to be a problem since migration is not
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possible but it broke LEAPP upgrade to RHEL9 when the machine is
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defined with a passthrough device. Activate the zPCI features also on
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RHEL9.2 for the machines to be alike in both latest RHEL distros.
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Upstream Status: RHEL-only
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2159408
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Signed-off-by: Cédric Le Goater <clg@redhat.com>
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---
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hw/s390x/s390-virtio-ccw.c | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
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index aa142a1a4e..4cdd59c394 100644
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--- a/hw/s390x/s390-virtio-ccw.c
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+++ b/hw/s390x/s390-virtio-ccw.c
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@@ -1234,8 +1234,14 @@ static void ccw_machine_rhel860_instance_options(MachineState *machine)
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static void ccw_machine_rhel860_class_options(MachineClass *mc)
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{
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+ static GlobalProperty compat[] = {
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+ { TYPE_S390_PCI_DEVICE, "interpret", "on", },
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+ { TYPE_S390_PCI_DEVICE, "forwarding-assist", "on", },
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+ };
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+
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ccw_machine_rhel900_class_options(mc);
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compat_props_add(mc->compat_props, hw_compat_rhel_8_6, hw_compat_rhel_8_6_len);
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+ compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
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/* All RHEL machines for prior major releases are deprecated */
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mc->deprecation_reason = rhel_old_machine_deprecation;
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@@ -1259,8 +1265,14 @@ static void ccw_machine_rhel850_instance_options(MachineState *machine)
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static void ccw_machine_rhel850_class_options(MachineClass *mc)
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{
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+ static GlobalProperty compat[] = {
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+ { TYPE_S390_PCI_DEVICE, "interpret", "off", },
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+ { TYPE_S390_PCI_DEVICE, "forwarding-assist", "off", },
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+ };
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+
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ccw_machine_rhel860_class_options(mc);
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compat_props_add(mc->compat_props, hw_compat_rhel_8_5, hw_compat_rhel_8_5_len);
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+ compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
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mc->smp_props.prefer_sockets = true;
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}
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DEFINE_CCW_MACHINE(rhel850, "rhel8.5.0", false);
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--
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2.31.1
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