cfbebe833a
- kvm-target-i386-cpu-set-correct-supported-XCR0-features-.patch [RHEL-30316 RHEL-45111] - kvm-target-i386-do-not-rely-on-ExtSaveArea-for-accelerat.patch [RHEL-30316 RHEL-45111] - kvm-target-i386-return-bool-from-x86_cpu_filter_features.patch [RHEL-30316 RHEL-45111] - kvm-target-i386-add-AVX10-feature-and-AVX10-version-prop.patch [RHEL-30316 RHEL-45111] - kvm-target-i386-add-CPUID.24-features-for-AVX10.patch [RHEL-30316 RHEL-45111] - kvm-target-i386-Add-feature-dependencies-for-AVX10.patch [RHEL-30316 RHEL-45111] - kvm-target-i386-Add-AVX512-state-when-AVX10-is-supported.patch [RHEL-30316 RHEL-45111] - kvm-target-i386-Introduce-GraniteRapids-v2-model.patch [RHEL-30316 RHEL-45111] - kvm-target-i386-add-sha512-sm3-sm4-feature-bits.patch [RHEL-30316 RHEL-45111] - kvm-arm-disable-pauth-for-virt-rhel9.patch [RHEL-75782] - kvm-tests-qtest-disable-most-pauth-tests.patch [RHEL-75782] - Resolves: RHEL-30316 ([Intel 9.6 FEAT] [GNR] Virt-QEMU: Add AVX10.1 instruction support) - Resolves: RHEL-45111 ([Intel 9.6 FEAT] [CWF][DMR] Virt-QEMU: Advertise new instructions SHA2-512NI, SM3, and SM4) - Resolves: RHEL-75782 ([Nvidia "Grace"] Lack of "PAuth" CPU feature results in live migration failure from RHEL 9.6 to 10)
61 lines
2.1 KiB
Diff
61 lines
2.1 KiB
Diff
From 664e672182e39516f26e5f6b10784e42c9dd9864 Mon Sep 17 00:00:00 2001
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From: Sebastian Ott <sebott@redhat.com>
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Date: Wed, 22 Jan 2025 06:01:21 -0500
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Subject: [PATCH 10/11] arm: disable pauth for virt-rhel9*
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RH-Author: Sebastian Ott <sebott@redhat.com>
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RH-MergeRequest: 330: arm: disable pauth for virt-rhel9*
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RH-Jira: RHEL-75782
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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: [1/2] 6b30d9a755f06d6823b8a874babf12a1b5fc3295 (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 change when a RHEL9 qemu is
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used on a RHEL10 kernel (e.g. in a container on a host with pauth
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support).
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Make sure that virt-rhel9* machine types in RHEL9 stay the same
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independent of the kernel.
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Signed-off-by: Sebastian Ott <sebott@redhat.com>
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JIRA: https://issues.redhat.com/browse/RHEL-75782
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---
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hw/arm/virt.c | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/hw/arm/virt.c b/hw/arm/virt.c
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index c50bff2a6c..c5270a5abc 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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@@ -3589,6 +3599,7 @@ DEFINE_VIRT_MACHINE(2, 6)
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static void virt_rhel_machine_9_6_0_options(MachineClass *mc)
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{
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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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DEFINE_VIRT_MACHINE_AS_LATEST(9, 6, 0)
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--
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2.48.0
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