qemu-kvm/0008-Add-aarch64-machine-types.patch

From dfe5c09a8cca1dcbff5798951fa88b7f540ea4ed Mon Sep 17 00:00:00 2001
From: Miroslav Rezanina <mrezanin@redhat.com>
Date: Fri, 19 Oct 2018 12:53:31 +0200
Subject: Add aarch64 machine types

Adding changes to add RHEL machine types for aarch64 architecture.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
Rebase notes (6.1.0):
- Use CONFIG_TPM check when using TPM structures
- Add support for default_bus_bypass_iommu
- ea4c0b32d9 arm/virt: Register highmem and gic-version as class properties
- 895e1fa86a hw/arm/virt: Add 8.5 and 9.0 machine types and remove older ones

Rebase notes (7.0.0):
- Added dtb-kaslr-seed option
- Set no_tcg_lpa2 to true

Rebase notes (7.1.0 rc0):
- replace dtb_kaslr_seed by dtb_randomness

Rebase notes (7.1.0 rc3):
- Updated dtb_randomness comment

Merged patches (6.2.0):
- 9a3d4fde0e hw/arm/virt: Remove 9.0 machine type
- f7d04d6695 hw: arm: virt: Add hw_compat_rhel_8_5 to 8.5 machine type

Merged patches (7.0.0):
- 3b82be3dd3 redhat: virt-rhel8.5.0: Update machine type compatibility for QEMU 6.2.0 update
- c354a86c9b hw/arm/virt: Register "iommu" as a class property
- c1a2630dc9 hw/arm/virt: Register "its" as a class property
- 9d8c61dc93 hw/arm/virt: Rename default_bus_bypass_iommu
- a1d1b6eeb6 hw/arm/virt: Expose the 'RAS' option
- 47f8fe1b82 hw/arm/virt: Add 9.0 machine type and remove 8.5 one
- ed2346788f hw/arm/virt: Check no_tcg_its and minor style changes

Merged patches (7.0.0):
- f79b31bdef hw/arm/virt: Remove the dtb-kaslr-seed machine option
- b6fca85f4a hw/arm/virt: Fix missing initialization in instance/class_init()

Merged patches (7.1.0 rc0):
- ac97dd4f9f RHEL-only: AArch64: Drop unsupported CPU types
- e9c0a70664 target/arm: deprecate named CPU models
---
 hw/arm/virt.c                  | 236 ++++++++++++++++++++++++++++++++-
 include/hw/arm/virt.h          |   8 ++
 target/arm/cpu-qom.h           |   1 +
 target/arm/cpu.c               |   5 +
 target/arm/cpu.h               |   2 +
 target/arm/cpu64.c             |  14 +-
 target/arm/cpu_tcg.c           |  12 +-
 target/arm/helper.c            |   2 +
 tests/qtest/arm-cpu-features.c |   6 +
 9 files changed, 274 insertions(+), 12 deletions(-)

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 389d6882dd..9737b77eca 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -80,6 +80,7 @@
 #include "hw/char/pl011.h"
 #include "qemu/guest-random.h"
 
+#if 0 /* Disabled for Red Hat Enterprise Linux */
 #define DEFINE_VIRT_MACHINE_LATEST(major, minor, latest) \
     static void virt_##major##_##minor##_class_init(ObjectClass *oc, \
                                                     void *data) \
@@ -106,7 +107,48 @@
     DEFINE_VIRT_MACHINE_LATEST(major, minor, true)
 #define DEFINE_VIRT_MACHINE(major, minor) \
     DEFINE_VIRT_MACHINE_LATEST(major, minor, false)
-
+#endif /* disabled for RHEL */
+
+#define DEFINE_RHEL_MACHINE_LATEST(m, n, s, latest)                     \
+    static void rhel##m##n##s##_virt_class_init(ObjectClass *oc,        \
+                                                void *data)             \
+    {                                                                   \
+        MachineClass *mc = MACHINE_CLASS(oc);                           \
+        rhel##m##n##s##_virt_options(mc);                               \
+        mc->desc = "RHEL " # m "." # n "." # s " ARM Virtual Machine";  \
+        if (latest) {                                                   \
+            mc->alias = "virt";                                         \
+            mc->is_default = 1;                                         \
+        }                                                               \
+    }                                                                   \
+    static const TypeInfo rhel##m##n##s##_machvirt_info = {             \
+        .name = MACHINE_TYPE_NAME("virt-rhel" # m "." # n "." # s),     \
+        .parent = TYPE_RHEL_MACHINE,                                    \
+        .class_init = rhel##m##n##s##_virt_class_init,                  \
+    };                                                                  \
+    static void rhel##m##n##s##_machvirt_init(void)                     \
+    {                                                                   \
+        type_register_static(&rhel##m##n##s##_machvirt_info);           \
+    }                                                                   \
+    type_init(rhel##m##n##s##_machvirt_init);
+
+#define DEFINE_RHEL_MACHINE_AS_LATEST(major, minor, subminor)   \
+    DEFINE_RHEL_MACHINE_LATEST(major, minor, subminor, true)
+#define DEFINE_RHEL_MACHINE(major, minor, subminor)             \
+    DEFINE_RHEL_MACHINE_LATEST(major, minor, subminor, false)
+
+/* This variable is for changes to properties that are RHEL specific,
+ * different to the current upstream and to be applied to the latest
+ * machine type.
+ */
+GlobalProperty arm_rhel_compat[] = {
+    {
+        .driver   = "virtio-net-pci",
+        .property = "romfile",
+        .value    = "",
+    },
+};
+const size_t arm_rhel_compat_len = G_N_ELEMENTS(arm_rhel_compat);
 
 /* Number of external interrupt lines to configure the GIC with */
 #define NUM_IRQS 256
@@ -197,14 +239,18 @@ static const int a15irqmap[] = {
 };
 
 static const char *valid_cpus[] = {
+#if 0 /* Disabled for Red Hat Enterprise Linux */
     ARM_CPU_TYPE_NAME("cortex-a7"),
     ARM_CPU_TYPE_NAME("cortex-a15"),
     ARM_CPU_TYPE_NAME("cortex-a53"),
+#endif /* disabled for RHEL */
     ARM_CPU_TYPE_NAME("cortex-a57"),
+#if 0 /* Disabled for Red Hat Enterprise Linux */
     ARM_CPU_TYPE_NAME("cortex-a72"),
     ARM_CPU_TYPE_NAME("cortex-a76"),
     ARM_CPU_TYPE_NAME("a64fx"),
     ARM_CPU_TYPE_NAME("neoverse-n1"),
+#endif /* disabled for RHEL */
     ARM_CPU_TYPE_NAME("host"),
     ARM_CPU_TYPE_NAME("max"),
 };
@@ -2288,6 +2334,7 @@ static void machvirt_init(MachineState *machine)
     qemu_add_machine_init_done_notifier(&vms->machine_done);
 }
 
+#if 0 /* Disabled for Red Hat Enterprise Linux */
 static bool virt_get_secure(Object *obj, Error **errp)
 {
     VirtMachineState *vms = VIRT_MACHINE(obj);
@@ -2315,6 +2362,7 @@ static void virt_set_virt(Object *obj, bool value, Error **errp)
 
     vms->virt = value;
 }
+#endif /* disabled for RHEL */
 
 static bool virt_get_highmem(Object *obj, Error **errp)
 {
@@ -2344,6 +2392,7 @@ static void virt_set_its(Object *obj, bool value, Error **errp)
     vms->its = value;
 }
 
+#if 0 /* Disabled for Red Hat Enterprise Linux */
 static bool virt_get_dtb_randomness(Object *obj, Error **errp)
 {
     VirtMachineState *vms = VIRT_MACHINE(obj);
@@ -2357,6 +2406,7 @@ static void virt_set_dtb_randomness(Object *obj, bool value, Error **errp)
 
     vms->dtb_randomness = value;
 }
+#endif /* disabled for RHEL */
 
 static char *virt_get_oem_id(Object *obj, Error **errp)
 {
@@ -2440,6 +2490,7 @@ static void virt_set_ras(Object *obj, bool value, Error **errp)
     vms->ras = value;
 }
 
+#if 0 /* Disabled for Red Hat Enterprise Linux */
 static bool virt_get_mte(Object *obj, Error **errp)
 {
     VirtMachineState *vms = VIRT_MACHINE(obj);
@@ -2453,6 +2504,7 @@ static void virt_set_mte(Object *obj, bool value, Error **errp)
 
     vms->mte = value;
 }
+#endif /* disabled for RHEL */
 
 static char *virt_get_gic_version(Object *obj, Error **errp)
 {
@@ -2884,6 +2936,7 @@ static int virt_kvm_type(MachineState *ms, const char *type_str)
     return fixed_ipa ? 0 : requested_pa_size;
 }
 
+#if 0 /* Disabled for Red Hat Enterprise Linux */
 static void virt_machine_class_init(ObjectClass *oc, void *data)
 {
     MachineClass *mc = MACHINE_CLASS(oc);
@@ -3285,3 +3338,184 @@ static void virt_machine_2_6_options(MachineClass *mc)
     vmc->no_pmu = true;
 }
 DEFINE_VIRT_MACHINE(2, 6)
+#endif /* disabled for RHEL */
+
+static void rhel_machine_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
+
+    mc->family = "virt-rhel-Z";
+    mc->init = machvirt_init;
+    /* Maximum supported VCPU count for all virt-rhel* machines */
+    mc->max_cpus = 384;
+#ifdef CONFIG_TPM
+    machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS);
+#endif
+    mc->block_default_type = IF_VIRTIO;
+    mc->no_cdrom = 1;
+    mc->pci_allow_0_address = true;
+    /* We know we will never create a pre-ARMv7 CPU which needs 1K pages */
+    mc->minimum_page_bits = 12;
+    mc->possible_cpu_arch_ids = virt_possible_cpu_arch_ids;
+    mc->cpu_index_to_instance_props = virt_cpu_index_to_props;
+    mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a57");
+    mc->get_default_cpu_node_id = virt_get_default_cpu_node_id;
+    mc->kvm_type = virt_kvm_type;
+    assert(!mc->get_hotplug_handler);
+    mc->get_hotplug_handler = virt_machine_get_hotplug_handler;
+    hc->pre_plug = virt_machine_device_pre_plug_cb;
+    hc->plug = virt_machine_device_plug_cb;
+    hc->unplug_request = virt_machine_device_unplug_request_cb;
+    hc->unplug = virt_machine_device_unplug_cb;
+    mc->nvdimm_supported = true;
+    mc->smp_props.clusters_supported = true;
+    mc->auto_enable_numa_with_memhp = true;
+    mc->auto_enable_numa_with_memdev = true;
+    mc->default_ram_id = "mach-virt.ram";
+
+    object_class_property_add(oc, "acpi", "OnOffAuto",
+        virt_get_acpi, virt_set_acpi,
+        NULL, NULL);
+    object_class_property_set_description(oc, "acpi",
+        "Enable ACPI");
+
+    object_class_property_add_bool(oc, "highmem", virt_get_highmem,
+                                   virt_set_highmem);
+    object_class_property_set_description(oc, "highmem",
+                                          "Set on/off to enable/disable using "
+                                          "physical address space above 32 bits");
+
+    object_class_property_add_str(oc, "gic-version", virt_get_gic_version,
+                                  virt_set_gic_version);
+    object_class_property_set_description(oc, "gic-version",
+                                          "Set GIC version. "
+                                          "Valid values are 2, 3, host and max");
+
+    object_class_property_add_str(oc, "iommu", virt_get_iommu, virt_set_iommu);
+    object_class_property_set_description(oc, "iommu",
+                                          "Set the IOMMU type. "
+                                          "Valid values are none and smmuv3");
+
+    object_class_property_add_bool(oc, "default-bus-bypass-iommu",
+                                   virt_get_default_bus_bypass_iommu,
+                                   virt_set_default_bus_bypass_iommu);
+    object_class_property_set_description(oc, "default-bus-bypass-iommu",
+                                          "Set on/off to enable/disable "
+                                          "bypass_iommu for default root bus");
+
+    object_class_property_add_bool(oc, "ras", virt_get_ras,
+                                   virt_set_ras);
+    object_class_property_set_description(oc, "ras",
+                                          "Set on/off to enable/disable reporting host memory errors "
+                                          "to a KVM guest using ACPI and guest external abort exceptions");
+
+    object_class_property_add_bool(oc, "its", virt_get_its,
+                                   virt_set_its);
+    object_class_property_set_description(oc, "its",
+                                          "Set on/off to enable/disable "
+                                          "ITS instantiation");
+
+    object_class_property_add_str(oc, "x-oem-id",
+                                  virt_get_oem_id,
+                                  virt_set_oem_id);
+    object_class_property_set_description(oc, "x-oem-id",
+                                          "Override the default value of field OEMID "
+                                          "in ACPI table header."
+                                          "The string may be up to 6 bytes in size");
+
+
+    object_class_property_add_str(oc, "x-oem-table-id",
+                                  virt_get_oem_table_id,
+                                  virt_set_oem_table_id);
+    object_class_property_set_description(oc, "x-oem-table-id",
+                                          "Override the default value of field OEM Table ID "
+                                          "in ACPI table header."
+                                          "The string may be up to 8 bytes in size");
+}
+
+static void rhel_virt_instance_init(Object *obj)
+{
+    VirtMachineState *vms = VIRT_MACHINE(obj);
+    VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms);
+
+    /* EL3 is disabled by default and non-configurable for RHEL */
+    vms->secure = false;
+
+    /* EL2 is disabled by default and non-configurable for RHEL */
+    vms->virt = false;
+
+    /* High memory is enabled by default */
+    vms->highmem = true;
+    vms->gic_version = VIRT_GIC_VERSION_NOSEL;
+
+    vms->highmem_ecam = !vmc->no_highmem_ecam;
+    vms->highmem_mmio = true;
+    vms->highmem_redists = true;
+
+    if (vmc->no_its) {
+        vms->its = false;
+    } else {
+        /* Default allows ITS instantiation */
+        vms->its = true;
+
+        if (vmc->no_tcg_its) {
+            vms->tcg_its = false;
+        } else {
+            vms->tcg_its = true;
+        }
+    }
+
+    /* Default disallows iommu instantiation */
+    vms->iommu = VIRT_IOMMU_NONE;
+
+    /* The default root bus is attached to iommu by default */
+    vms->default_bus_bypass_iommu = false;
+
+    /* Default disallows RAS instantiation and is non-configurable for RHEL */
+    vms->ras = false;
+
+    /* MTE is disabled by default and non-configurable for RHEL */
+    vms->mte = false;
+
+    /* Supply kaslr-seed and rng-seed by default, non-configurable for RHEL */
+    vms->dtb_randomness = true;
+
+    vms->irqmap = a15irqmap;
+
+    virt_flash_create(vms);
+
+    vms->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6);
+    vms->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8);
+}
+
+static const TypeInfo rhel_machine_info = {
+    .name          = TYPE_RHEL_MACHINE,
+    .parent        = TYPE_MACHINE,
+    .abstract      = true,
+    .instance_size = sizeof(VirtMachineState),
+    .class_size    = sizeof(VirtMachineClass),
+    .class_init    = rhel_machine_class_init,
+    .instance_init = rhel_virt_instance_init,
+    .interfaces = (InterfaceInfo[]) {
+         { TYPE_HOTPLUG_HANDLER },
+         { }
+    },
+};
+
+static void rhel_machine_init(void)
+{
+    type_register_static(&rhel_machine_info);
+}
+type_init(rhel_machine_init);
+
+static void rhel900_virt_options(MachineClass *mc)
+{
+    VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc));
+
+    compat_props_add(mc->compat_props, arm_rhel_compat, arm_rhel_compat_len);
+
+    /* Disable FEAT_LPA2 since old kernels (<= v5.12) don't boot with that feature */
+    vmc->no_tcg_lpa2 = true;
+}
+DEFINE_RHEL_MACHINE_AS_LATEST(9, 0, 0)
diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
index 6ec479ca2b..22b54ec510 100644
--- a/include/hw/arm/virt.h
+++ b/include/hw/arm/virt.h
@@ -180,9 +180,17 @@ struct VirtMachineState {
 
 #define VIRT_ECAM_ID(high) (high ? VIRT_HIGH_PCIE_ECAM : VIRT_PCIE_ECAM)
 
+#if 0 /* disabled for Red Hat Enterprise Linux */
 #define TYPE_VIRT_MACHINE   MACHINE_TYPE_NAME("virt")
 OBJECT_DECLARE_TYPE(VirtMachineState, VirtMachineClass, VIRT_MACHINE)
 
+#else
+#define TYPE_RHEL_MACHINE MACHINE_TYPE_NAME("virt-rhel")
+typedef struct VirtMachineClass VirtMachineClass;
+typedef struct VirtMachineState VirtMachineState;
+DECLARE_OBJ_CHECKERS(VirtMachineState, VirtMachineClass, VIRT_MACHINE, TYPE_RHEL_MACHINE)
+#endif
+
 void virt_acpi_setup(VirtMachineState *vms);
 bool virt_is_acpi_enabled(VirtMachineState *vms);
 
diff --git a/target/arm/cpu-qom.h b/target/arm/cpu-qom.h
index 64c44cef2d..82e97249bc 100644
--- a/target/arm/cpu-qom.h
+++ b/target/arm/cpu-qom.h
@@ -35,6 +35,7 @@ typedef struct ARMCPUInfo {
     const char *name;
     void (*initfn)(Object *obj);
     void (*class_init)(ObjectClass *oc, void *data);
+    const char *deprecation_note;
 } ARMCPUInfo;
 
 void arm_cpu_register(const ARMCPUInfo *info);
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 7ec3281da9..86174077f1 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -2200,8 +2200,13 @@ static void arm_cpu_instance_init(Object *obj)
 static void cpu_register_class_init(ObjectClass *oc, void *data)
 {
     ARMCPUClass *acc = ARM_CPU_CLASS(oc);
+    CPUClass *cc = CPU_CLASS(oc);
 
     acc->info = data;
+
+    if (acc->info->deprecation_note) {
+        cc->deprecation_note = acc->info->deprecation_note;
+    }
 }
 
 void arm_cpu_register(const ARMCPUInfo *info)
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 5168e3d837..876ca7cebb 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -34,6 +34,8 @@
 #define KVM_HAVE_MCE_INJECTION 1
 #endif
 
+#define RHEL_CPU_DEPRECATION "use 'host' / 'max'"
+
 #define EXCP_UDEF            1   /* undefined instruction */
 #define EXCP_SWI             2   /* software interrupt */
 #define EXCP_PREFETCH_ABORT  3
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index 78e27f778a..1a16c9dccc 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -94,6 +94,7 @@ static void aarch64_a57_initfn(Object *obj)
     define_cortex_a72_a57_a53_cp_reginfo(cpu);
 }
 
+#if 0 /* Disabled for Red Hat Enterprise Linux */
 static void aarch64_a53_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
@@ -343,6 +344,7 @@ static void aarch64_neoverse_n1_initfn(Object *obj)
     /* From D5.1 AArch64 PMU register summary */
     cpu->isar.reset_pmcr_el0 = 0x410c3000;
 }
+#endif /* disabled for RHEL */
 
 void arm_cpu_sve_finalize(ARMCPU *cpu, Error **errp)
 {
@@ -1108,6 +1110,7 @@ static void aarch64_max_initfn(Object *obj)
     qdev_property_add_static(DEVICE(obj), &arm_cpu_lpa2_property);
 }
 
+#if 0 /* Disabled for Red Hat Enterprise Linux */
 static void aarch64_a64fx_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
@@ -1156,14 +1159,18 @@ static void aarch64_a64fx_initfn(Object *obj)
 
     /* TODO:  Add A64FX specific HPC extension registers */
 }
+#endif /* disabled for RHEL */
 
 static const ARMCPUInfo aarch64_cpus[] = {
-    { .name = "cortex-a57",         .initfn = aarch64_a57_initfn },
+    { .name = "cortex-a57",         .initfn = aarch64_a57_initfn,
+      .deprecation_note = RHEL_CPU_DEPRECATION },
+#if 0 /* Disabled for Red Hat Enterprise Linux */
     { .name = "cortex-a53",         .initfn = aarch64_a53_initfn },
     { .name = "cortex-a72",         .initfn = aarch64_a72_initfn },
     { .name = "cortex-a76",         .initfn = aarch64_a76_initfn },
     { .name = "a64fx",              .initfn = aarch64_a64fx_initfn },
     { .name = "neoverse-n1",        .initfn = aarch64_neoverse_n1_initfn },
+#endif /* disabled for RHEL */
     { .name = "max",                .initfn = aarch64_max_initfn },
 #if defined(CONFIG_KVM) || defined(CONFIG_HVF)
     { .name = "host",               .initfn = aarch64_host_initfn },
@@ -1235,8 +1242,13 @@ static void aarch64_cpu_instance_init(Object *obj)
 static void cpu_register_class_init(ObjectClass *oc, void *data)
 {
     ARMCPUClass *acc = ARM_CPU_CLASS(oc);
+    CPUClass *cc = CPU_CLASS(oc);
 
     acc->info = data;
+
+    if (acc->info->deprecation_note) {
+        cc->deprecation_note = acc->info->deprecation_note;
+    }
 }
 
 void aarch64_cpu_register(const ARMCPUInfo *info)
diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c
index 10d91c4ef0..33cbc2cfe8 100644
--- a/target/arm/cpu_tcg.c
+++ b/target/arm/cpu_tcg.c
@@ -144,10 +144,10 @@ void define_cortex_a72_a57_a53_cp_reginfo(ARMCPU *cpu)
 }
 #endif /* !CONFIG_USER_ONLY */
 
+#if 0 /* Disabled for Red Hat Enterprise Linux */
 /* CPU models. These are not needed for the AArch64 linux-user build. */
 #if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64)
 
-#if 0 /* Disabled for Red Hat Enterprise Linux */
 #if !defined(CONFIG_USER_ONLY) && defined(CONFIG_TCG)
 static bool arm_v7m_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
 {
@@ -501,7 +501,6 @@ static void cortex_a9_initfn(Object *obj)
     cpu->isar.reset_pmcr_el0 = 0x41093000;
     define_arm_cp_regs(cpu, cortexa9_cp_reginfo);
 }
-#endif /* disabled for RHEL */
 
 #ifndef CONFIG_USER_ONLY
 static uint64_t a15_l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri)
@@ -526,7 +525,6 @@ static const ARMCPRegInfo cortexa15_cp_reginfo[] = {
       .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
 };
 
-#if 0 /* Disabled for Red Hat Enterprise Linux */
 static void cortex_a7_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
@@ -575,7 +573,6 @@ static void cortex_a7_initfn(Object *obj)
     cpu->isar.reset_pmcr_el0 = 0x41072000;
     define_arm_cp_regs(cpu, cortexa15_cp_reginfo); /* Same as A15 */
 }
-#endif /* disabled for RHEL */
 
 static void cortex_a15_initfn(Object *obj)
 {
@@ -622,7 +619,6 @@ static void cortex_a15_initfn(Object *obj)
     define_arm_cp_regs(cpu, cortexa15_cp_reginfo);
 }
 
-#if 0 /* Disabled for Red Hat Enterprise Linux */
 static void cortex_m0_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
@@ -1063,7 +1059,6 @@ static void arm_v7m_class_init(ObjectClass *oc, void *data)
 
     cc->gdb_core_xml_file = "arm-m-profile.xml";
 }
-#endif /* disabled for RHEL */
 
 #ifndef TARGET_AARCH64
 /*
@@ -1131,7 +1126,6 @@ static void arm_max_initfn(Object *obj)
 #endif /* !TARGET_AARCH64 */
 
 static const ARMCPUInfo arm_tcg_cpus[] = {
-#if 0 /* Disabled for Red Hat Enterprise Linux */
     { .name = "arm926",      .initfn = arm926_initfn },
     { .name = "arm946",      .initfn = arm946_initfn },
     { .name = "arm1026",     .initfn = arm1026_initfn },
@@ -1147,9 +1141,7 @@ static const ARMCPUInfo arm_tcg_cpus[] = {
     { .name = "cortex-a7",   .initfn = cortex_a7_initfn },
     { .name = "cortex-a8",   .initfn = cortex_a8_initfn },
     { .name = "cortex-a9",   .initfn = cortex_a9_initfn },
-#endif /* disabled for RHEL */
     { .name = "cortex-a15",  .initfn = cortex_a15_initfn },
-#if 0 /* Disabled for Red Hat Enterprise Linux */
     { .name = "cortex-m0",   .initfn = cortex_m0_initfn,
                              .class_init = arm_v7m_class_init },
     { .name = "cortex-m3",   .initfn = cortex_m3_initfn,
@@ -1180,7 +1172,6 @@ static const ARMCPUInfo arm_tcg_cpus[] = {
     { .name = "pxa270-b1",   .initfn = pxa270b1_initfn },
     { .name = "pxa270-c0",   .initfn = pxa270c0_initfn },
     { .name = "pxa270-c5",   .initfn = pxa270c5_initfn },
-#endif /* disabled for RHEL */
 #ifndef TARGET_AARCH64
     { .name = "max",         .initfn = arm_max_initfn },
 #endif
@@ -1208,3 +1199,4 @@ static void arm_tcg_cpu_register_types(void)
 type_init(arm_tcg_cpu_register_types)
 
 #endif /* !CONFIG_USER_ONLY || !TARGET_AARCH64 */
+#endif /* disabled for RHEL */
diff --git a/target/arm/helper.c b/target/arm/helper.c
index d7bc467a2a..a91494b7d3 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -8213,6 +8213,7 @@ void arm_cpu_list(void)
 static void arm_cpu_add_definition(gpointer data, gpointer user_data)
 {
     ObjectClass *oc = data;
+    CPUClass *cc = CPU_CLASS(oc);
     CpuDefinitionInfoList **cpu_list = user_data;
     CpuDefinitionInfo *info;
     const char *typename;
@@ -8222,6 +8223,7 @@ static void arm_cpu_add_definition(gpointer data, gpointer user_data)
     info->name = g_strndup(typename,
                            strlen(typename) - strlen("-" TYPE_ARM_CPU));
     info->q_typename = g_strdup(typename);
+    info->deprecated = !!cc->deprecation_note;
 
     QAPI_LIST_PREPEND(*cpu_list, info);
 }
diff --git a/tests/qtest/arm-cpu-features.c b/tests/qtest/arm-cpu-features.c
index 5a14527386..a3579fc303 100644
--- a/tests/qtest/arm-cpu-features.c
+++ b/tests/qtest/arm-cpu-features.c
@@ -440,8 +440,10 @@ static void test_query_cpu_model_expansion(const void *data)
     assert_error(qts, "host", "The CPU type 'host' requires KVM", NULL);
 
     /* Test expected feature presence/absence for some cpu types */
+#if 0 /* Disabled for Red Hat Enterprise Linux */
     assert_has_feature_enabled(qts, "cortex-a15", "pmu");
     assert_has_not_feature(qts, "cortex-a15", "aarch64");
+#endif /* disabled for RHEL */
 
     /* Enabling and disabling pmu should always work. */
     assert_has_feature_enabled(qts, "max", "pmu");
@@ -458,6 +460,7 @@ static void test_query_cpu_model_expansion(const void *data)
         assert_has_feature_enabled(qts, "cortex-a57", "pmu");
         assert_has_feature_enabled(qts, "cortex-a57", "aarch64");
 
+#if 0 /* Disabled for Red Hat Enterprise Linux */
         assert_has_feature_enabled(qts, "a64fx", "pmu");
         assert_has_feature_enabled(qts, "a64fx", "aarch64");
         /*
@@ -470,6 +473,7 @@ static void test_query_cpu_model_expansion(const void *data)
                      "{ 'sve384': true }");
         assert_error(qts, "a64fx", "cannot enable sve640",
                      "{ 'sve640': true }");
+#endif /* disabled for RHEL */
 
         sve_tests_default(qts, "max");
         pauth_tests_default(qts, "max");
@@ -505,9 +509,11 @@ static void test_query_cpu_model_expansion_kvm(const void *data)
         QDict *resp;
         char *error;
 
+#if 0 /* Disabled for Red Hat Enterprise Linux */
         assert_error(qts, "cortex-a15",
             "We cannot guarantee the CPU type 'cortex-a15' works "
             "with KVM on this host", NULL);
+#endif /* disabled for RHEL */
 
         assert_has_feature_enabled(qts, "host", "aarch64");
 
-- 
2.31.1