Blame SOURCES/kvm-hw-intc-arm_gicv3_its-Fix-the-VM-termination-in-vm_c.patch

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From 1bc2106857269cd428567fed2f8afedd25c2c288 Mon Sep 17 00:00:00 2001
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From: Auger Eric <eric.auger@redhat.com>
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Date: Tue, 28 Nov 2017 15:14:03 +0100
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Subject: [PATCH 2/9] hw/intc/arm_gicv3_its: Fix the VM termination in
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 vm_change_state_handler()
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RH-Author: Auger Eric <eric.auger@redhat.com>
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Message-id: <1511882048-11256-3-git-send-email-eric.auger@redhat.com>
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Patchwork-id: 77937
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O-Subject: [RHV7.5 qemu-kvm-ma PATCH 2/7] hw/intc/arm_gicv3_its: Fix the VM termination in vm_change_state_handler()
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Bugzilla: 1513323
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RH-Acked-by: Andrew Jones <drjones@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Acked-by: Wei Huang <wei@redhat.com>
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From: Shanker Donthineni <shankerd@codeaurora.org>
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The commit cddafd8f353d ("hw/intc/arm_gicv3_its: Implement state save
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/restore") breaks the backward compatibility with the older kernels
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where vITS save/restore support is not available. The vmstate function
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vm_change_state_handler() should not be registered if the running kernel
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doesn't support ITS save/restore feature. Otherwise VM instance will be
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killed whenever vmstate callback function is invoked.
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Observed a virtual machine shutdown with QEMU-2.10+linux-4.11 when testing
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the reboot command "virsh reboot <domain> --mode acpi" instead of reboot.
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KVM Error: 'KVM_SET_DEVICE_ATTR failed: Group 4 attr 0x00000000000001'
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Signed-off-by: Shanker Donthineni <shankerd@codeaurora.org>
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Reviewed-by: Eric Auger <eric.auger@redhat.com>
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Message-id: 1509712671-16299-1-git-send-email-shankerd@codeaurora.org
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Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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(cherry picked from commit 3a575cd2c2411f139a95ace4b2523bc1dfd21755)
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Signed-off-by: Eric Auger <eric.auger@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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 hw/intc/arm_gicv3_its_kvm.c | 4 ++--
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 1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/hw/intc/arm_gicv3_its_kvm.c b/hw/intc/arm_gicv3_its_kvm.c
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index 39903d5..9b00ce5 100644
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--- a/hw/intc/arm_gicv3_its_kvm.c
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+++ b/hw/intc/arm_gicv3_its_kvm.c
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@@ -111,13 +111,13 @@ static void kvm_arm_its_realize(DeviceState *dev, Error **errp)
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             error_free(s->migration_blocker);
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             return;
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         }
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+    } else {
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+        qemu_add_vm_change_state_handler(vm_change_state_handler, s);
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     }
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     kvm_msi_use_devid = true;
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     kvm_gsi_direct_mapping = false;
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     kvm_msi_via_irqfd_allowed = kvm_irqfds_enabled();
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-
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-    qemu_add_vm_change_state_handler(vm_change_state_handler, s);
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 }
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 /**
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-- 
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1.8.3.1
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