b7456aa7c8
- kvm-pci-ensure-valid-link-status-bits-for-downstream-por.patch [RHEL-65618] - kvm-pc-bios-s390-ccw-Abort-IPL-on-invalid-loadparm.patch [RHEL-72717] - kvm-pc-bios-s390-ccw-virtio-Add-a-function-to-reset-a-vi.patch [RHEL-72717] - kvm-pc-bios-s390-ccw-Fix-boot-problem-with-virtio-net-de.patch [RHEL-72717] - kvm-pc-bios-s390-ccw-netmain-Fix-error-messages-with-reg.patch [RHEL-72717] - kvm-arm-disable-pauth-for-virt-rhel9-in-RHEL10.patch [RHEL-71761] - Resolves: RHEL-65618 ([RHEL10] Failed to hot add PCIe device behind xio3130 downstream) - Resolves: RHEL-72717 (Boot fall back to cdrom from network not always working) - Resolves: RHEL-71761 ([Nvidia "Grace"] Lack of "PAuth" CPU feature results in live migration failure from RHEL 9.6 to 10)
61 lines
2.2 KiB
Diff
61 lines
2.2 KiB
Diff
From d36ac428991e700dd5cec62dfa16f1d414a9dda8 Mon Sep 17 00:00:00 2001
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From: Sebastian Ott <sebott@redhat.com>
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Date: Fri, 17 Jan 2025 05:50:54 -0500
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Subject: [PATCH 6/6] arm: disable pauth for virt-rhel9* in RHEL10
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RH-Author: Sebastian Ott <sebott@redhat.com>
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RH-MergeRequest: 327: arm: disable pauth for virt-rhel9* in RHEL10
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RH-Jira: RHEL-71761
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RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
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RH-Acked-by: Eric Auger <eric.auger@redhat.com>
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RH-Acked-by: Kashyap Chamarthy <None>
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RH-Acked-by: Gavin Shan <gshan@redhat.com>
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RH-Commit: [1/1] fef388b1aafce66fa1a176739264bca49596bb94 (seott1/cos-qemu-kvm)
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RHEL9 kernels have pauth disabled while RHEL10 has it enabled,
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since qemu will setup the VM/VCPU with pauth when KVM supports it
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the guest visible ID registers will differ between RHEL9 and RHEL10
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(on a host with pauth support) leading to migration / upgrade failures.
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Fix this by disabling pauth for virt-rhel9* machine types in RHEL10.
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Signed-off-by: Sebastian Ott <sebott@redhat.com>
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JIRA: https://issues.redhat.com/browse/RHEL-71761
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---
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hw/arm/virt.c | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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diff --git a/hw/arm/virt.c b/hw/arm/virt.c
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index 6d55bba241..55bd92e6d0 100644
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--- a/hw/arm/virt.c
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+++ b/hw/arm/virt.c
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@@ -90,6 +90,16 @@ static GlobalProperty arm_virt_compat[] = {
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};
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static const size_t arm_virt_compat_len = G_N_ELEMENTS(arm_virt_compat);
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+/*
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+ * RHEL9 kernels have pauth disabled while RHEL10 has it enabled,
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+ * since qemu will setup the VM with pauth when KVM supports it we
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+ * have to disable it for virt-rhel9* to support upgrades / migration.
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+ */
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+GlobalProperty arm_rhel9_compat[] = {
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+ {TYPE_ARM_CPU, "pauth", "off", .optional = true},
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+};
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+const size_t arm_rhel9_compat_len = G_N_ELEMENTS(arm_rhel9_compat);
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+
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/*
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* This variable is for changes to properties that are RHEL specific,
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* different to the current upstream and to be applied to the latest
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@@ -3596,6 +3606,8 @@ static void virt_rhel_machine_9_6_0_options(MachineClass *mc)
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{
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virt_rhel_machine_10_0_0_options(mc);
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+ compat_props_add(mc->compat_props, arm_rhel9_compat, arm_rhel9_compat_len);
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+
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/* NB: remember to move this line to the *latest* RHEL 9 machine */
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compat_props_add(mc->compat_props, hw_compat_rhel_9, hw_compat_rhel_9_len);
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}
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--
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2.39.3
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