From f61b3d7dc000886e23943457ee9baf1d4cae43b4 Mon Sep 17 00:00:00 2001

From: Miroslav Rezanina <mrezanin@redhat.com>

Date: Fri, 19 Oct 2018 13:27:13 +0200

Subject: Add ppc64 machine types

Adding changes to add RHEL machine types for ppc64 architecture.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>

Rebase notes (6.2.0):

- Fixed rebase conflict relicts

- Update machine type compat for 6.2 (from MR 66)

Merged patches (6.1.0):

- c438c25ac3 redhat: Define pseries-rhel8.5.0 machine type

- a3995e2eff Remove RHEL 7.0.0 machine type (only ppc64 changes)

- ad3190a79b Remove RHEL 7.1.0 machine type (only ppc64 changes)

- 84bbe15d4e Remove RHEL 7.2.0 machine type (only ppc64 changes)

- 0215eb3356 Remove RHEL 7.3.0 machine types (only ppc64 changes)

- af69d1ca6e Remove RHEL 7.4.0 machine types (only ppc64 changes)

- 8f7a74ab78 Remove RHEL 7.5.0 machine types (only ppc64 changes)

---

 hw/ppc/spapr.c          | 243 ++++++++++++++++++++++++++++++++++++++++

 hw/ppc/spapr_cpu_core.c |  13 +++

 include/hw/ppc/spapr.h  |   4 +

 target/ppc/compat.c     |  13 ++-

 target/ppc/cpu.h        |   1 +

 target/ppc/kvm.c        |  27 +++++

 target/ppc/kvm_ppc.h    |  13 +++

 7 files changed, 313 insertions(+), 1 deletion(-)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c

index a4372ba189..5fdf8b506d 100644

--- a/hw/ppc/spapr.c

+++ b/hw/ppc/spapr.c

@@ -1622,6 +1622,9 @@ static void spapr_machine_reset(MachineState *machine)

     pef_kvm_reset(machine->cgs, &error_fatal);

     spapr_caps_apply(spapr);

+    if (spapr->svm_allowed) {

+        kvmppc_svm_allow(&error_fatal);

+    }

     first_ppc_cpu = POWERPC_CPU(first_cpu);

     if (kvm_enabled() && kvmppc_has_cap_mmu_radix() &&

@@ -3317,6 +3320,20 @@ static void spapr_set_host_serial(Object *obj, const char *value, Error **errp)

     spapr->host_serial = g_strdup(value);

 }

+static bool spapr_get_svm_allowed(Object *obj, Error **errp)

+{

+    SpaprMachineState *spapr = SPAPR_MACHINE(obj);

+

+    return spapr->svm_allowed;

+}

+

+static void spapr_set_svm_allowed(Object *obj, bool value, Error **errp)

+{

+    SpaprMachineState *spapr = SPAPR_MACHINE(obj);

+

+    spapr->svm_allowed = value;

+}

+

 static void spapr_instance_init(Object *obj)

 {

     SpaprMachineState *spapr = SPAPR_MACHINE(obj);

@@ -3395,6 +3412,12 @@ static void spapr_instance_init(Object *obj)

         spapr_get_host_serial, spapr_set_host_serial);

     object_property_set_description(obj, "host-serial",

         "Host serial number to advertise in guest device tree");

+    object_property_add_bool(obj, "x-svm-allowed",

+                            spapr_get_svm_allowed,

+                            spapr_set_svm_allowed);

+    object_property_set_description(obj, "x-svm-allowed",

+                                    "Allow the guest to become a Secure Guest"

+                                    " (experimental only)");

 }

 static void spapr_machine_finalizefn(Object *obj)

@@ -4652,6 +4675,7 @@ static void spapr_machine_class_init(ObjectClass *oc, void *data)

     vmc->client_architecture_support = spapr_vof_client_architecture_support;

     vmc->quiesce = spapr_vof_quiesce;

     vmc->setprop = spapr_vof_setprop;

+    smc->has_power9_support = true;

 }

 static const TypeInfo spapr_machine_info = {

@@ -4703,6 +4727,7 @@ static void spapr_machine_latest_class_options(MachineClass *mc)

     }                                                                \

     type_init(spapr_machine_register_##suffix)

+#if 0 /* Disabled for Red Hat Enterprise Linux */

 /*

  * pseries-7.0

  */

@@ -4830,6 +4855,7 @@ static void spapr_machine_4_1_class_options(MachineClass *mc)

 }

 DEFINE_SPAPR_MACHINE(4_1, "4.1", false);

+#endif

 /*

  * pseries-4.0

@@ -4849,6 +4875,8 @@ static bool phb_placement_4_0(SpaprMachineState *spapr, uint32_t index,

     *nv2atsd = 0;

     return true;

 }

+

+#if 0 /* Disabled for Red Hat Enterprise Linux */

 static void spapr_machine_4_0_class_options(MachineClass *mc)

 {

     SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);

@@ -5176,6 +5204,221 @@ static void spapr_machine_2_1_class_options(MachineClass *mc)

     compat_props_add(mc->compat_props, hw_compat_2_1, hw_compat_2_1_len);

 }

 DEFINE_SPAPR_MACHINE(2_1, "2.1", false);

+#endif

+

+static void spapr_machine_rhel_default_class_options(MachineClass *mc)

+{

+    /*

+     * Defaults for the latest behaviour inherited from the base class

+     * can be overriden here for all pseries-rhel* machines.

+     */

+

+    /* Maximum supported VCPU count */

+    mc->max_cpus = 384;

+}

+

+/*

+ * pseries-rhel8.5.0

+ * like pseries-6.0

+ */

+

+static void spapr_machine_rhel850_class_options(MachineClass *mc)

+{

+    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);

+

+    /* The default machine type must apply the RHEL specific defaults */

+    spapr_machine_rhel_default_class_options(mc);

+    compat_props_add(mc->compat_props, hw_compat_rhel_8_5,

+                     hw_compat_rhel_8_5_len);

+    smc->pre_6_2_numa_affinity = true;

+    mc->smp_props.prefer_sockets = true;

+}

+

+DEFINE_SPAPR_MACHINE(rhel850, "rhel8.5.0", true);

+

+/*

+ * pseries-rhel8.4.0

+ * like pseries-5.2

+ */

+

+static void spapr_machine_rhel840_class_options(MachineClass *mc)

+{

+    spapr_machine_rhel850_class_options(mc);

+    compat_props_add(mc->compat_props, hw_compat_rhel_8_4,

+                     hw_compat_rhel_8_4_len);

+}

+

+DEFINE_SPAPR_MACHINE(rhel840, "rhel8.4.0", false);

+

+/*

+ * pseries-rhel8.3.0

+ * like pseries-5.1

+ */

+

+static void spapr_machine_rhel830_class_options(MachineClass *mc)

+{

+    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);

+

+    spapr_machine_rhel840_class_options(mc);

+    compat_props_add(mc->compat_props, hw_compat_rhel_8_3,

+                     hw_compat_rhel_8_3_len);

+

+    /* from pseries-5.1 */

+    smc->pre_5_2_numa_associativity = true;

+}

+

+DEFINE_SPAPR_MACHINE(rhel830, "rhel8.3.0", false);

+

+/*

+ * pseries-rhel8.2.0

+ * like pseries-4.2 + pseries-5.0

+ * except SPAPR_CAP_CCF_ASSIST that has been backported to pseries-rhel8.1.0

+ */

+

+static void spapr_machine_rhel820_class_options(MachineClass *mc)

+{

+    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);

+    /* from pseries-5.0 */

+    static GlobalProperty compat[] = {

+        { TYPE_SPAPR_PCI_HOST_BRIDGE, "pre-5.1-associativity", "on" },

+    };

+

+    spapr_machine_rhel830_class_options(mc);

+    compat_props_add(mc->compat_props, hw_compat_rhel_8_2,

+                     hw_compat_rhel_8_2_len);

+    compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));

+

+    /* from pseries-4.2 */

+    smc->default_caps.caps[SPAPR_CAP_FWNMI] = SPAPR_CAP_OFF;

+    smc->rma_limit = 16 * GiB;

+    mc->nvdimm_supported = false;

+

+    /* from pseries-5.0 */

+    mc->numa_mem_supported = true;

+    smc->pre_5_1_assoc_refpoints = true;

+}

+

+DEFINE_SPAPR_MACHINE(rhel820, "rhel8.2.0", false);

+

+/*

+ * pseries-rhel8.1.0

+ * like pseries-4.1

+ */

+

+static void spapr_machine_rhel810_class_options(MachineClass *mc)

+{

+    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);

+    static GlobalProperty compat[] = {

+        /* Only allow 4kiB and 64kiB IOMMU pagesizes */

+        { TYPE_SPAPR_PCI_HOST_BRIDGE, "pgsz", "0x11000" },

+    };

+

+    spapr_machine_rhel820_class_options(mc);

+

+    /* from pseries-4.1 */

+    smc->linux_pci_probe = false;

+    smc->smp_threads_vsmt = false;

+    compat_props_add(mc->compat_props, hw_compat_rhel_8_1,

+                     hw_compat_rhel_8_1_len);

+    compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));

+

+    /* from pseries-4.2 */

+    smc->default_caps.caps[SPAPR_CAP_CCF_ASSIST] = SPAPR_CAP_OFF;

+}

+

+DEFINE_SPAPR_MACHINE(rhel810, "rhel8.1.0", false);

+

+/*

+ * pseries-rhel8.0.0

+ * like pseries-3.1 and pseries-4.0

+ * except SPAPR_CAP_CFPC, SPAPR_CAP_SBBC and SPAPR_CAP_IBS

+ * that have been backported to pseries-rhel8.0.0

+ */

+

+static void spapr_machine_rhel800_class_options(MachineClass *mc)

+{

+    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);

+

+    spapr_machine_rhel810_class_options(mc);

+    compat_props_add(mc->compat_props, hw_compat_rhel_8_0,

+                     hw_compat_rhel_8_0_len);

+

+    /* pseries-4.0 */

+    smc->phb_placement = phb_placement_4_0;

+    smc->irq = &spapr_irq_xics;

+    smc->pre_4_1_migration = true;

+

+    /* pseries-3.1 */

+    mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power8_v2.0");

+    smc->update_dt_enabled = false;

+    smc->dr_phb_enabled = false;

+    smc->broken_host_serial_model = true;

+    smc->default_caps.caps[SPAPR_CAP_LARGE_DECREMENTER] = SPAPR_CAP_OFF;

+}

+

+DEFINE_SPAPR_MACHINE(rhel800, "rhel8.0.0", false);

+

+/*

+ * pseries-rhel7.6.0

+ * like spapr_compat_2_12 and spapr_compat_3_0

+ * spapr_compat_0 is empty

+ */

+GlobalProperty spapr_compat_rhel7_6[] = {

+    { TYPE_POWERPC_CPU, "pre-3.0-migration", "on" },

+    { TYPE_SPAPR_CPU_CORE, "pre-3.0-migration", "on" },

+};

+const size_t spapr_compat_rhel7_6_len = G_N_ELEMENTS(spapr_compat_rhel7_6);

+

+

+static void spapr_machine_rhel760_class_options(MachineClass *mc)

+{

+    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);

+

+    spapr_machine_rhel800_class_options(mc);

+    compat_props_add(mc->compat_props, hw_compat_rhel_7_6, hw_compat_rhel_7_6_len);

+    compat_props_add(mc->compat_props, spapr_compat_rhel7_6, spapr_compat_rhel7_6_len);

+

+    /* from spapr_machine_3_0_class_options() */

+    smc->legacy_irq_allocation = true;

+    smc->nr_xirqs = 0x400;

+    smc->irq = &spapr_irq_xics_legacy;

+

+    /* from spapr_machine_2_12_class_options() */

+    /* We depend on kvm_enabled() to choose a default value for the

+     * hpt-max-page-size capability. Of course we can't do it here

+     * because this is too early and the HW accelerator isn't initialzed

+     * yet. Postpone this to machine init (see default_caps_with_cpu()).

+     */

+    smc->default_caps.caps[SPAPR_CAP_HPT_MAXPAGESIZE] = 0;

+

+    /* SPAPR_CAP_WORKAROUND enabled in pseries-rhel800 by

+     * f21757edc554

+     * "Enable mitigations by default for pseries-4.0 machine type")

+     */

+    smc->default_caps.caps[SPAPR_CAP_CFPC] = SPAPR_CAP_BROKEN;

+    smc->default_caps.caps[SPAPR_CAP_SBBC] = SPAPR_CAP_BROKEN;

+    smc->default_caps.caps[SPAPR_CAP_IBS] = SPAPR_CAP_BROKEN;

+}

+

+DEFINE_SPAPR_MACHINE(rhel760, "rhel7.6.0", false);

+

+/*

+ * pseries-rhel7.6.0-sxxm

+ *

+ * pseries-rhel7.6.0 with speculative execution exploit mitigations enabled by default

+ */

+

+static void spapr_machine_rhel760sxxm_class_options(MachineClass *mc)

+{

+    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);

+

+    spapr_machine_rhel760_class_options(mc);

+    smc->default_caps.caps[SPAPR_CAP_CFPC] = SPAPR_CAP_WORKAROUND;

+    smc->default_caps.caps[SPAPR_CAP_SBBC] = SPAPR_CAP_WORKAROUND;

+    smc->default_caps.caps[SPAPR_CAP_IBS] = SPAPR_CAP_FIXED_CCD;

+}

+

+DEFINE_SPAPR_MACHINE(rhel760sxxm, "rhel7.6.0-sxxm", false);

 static void spapr_machine_register_types(void)

 {

diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c

index fcb5dfe792..ab8fb5bf62 100644

--- a/hw/ppc/spapr_cpu_core.c

+++ b/hw/ppc/spapr_cpu_core.c

@@ -25,6 +25,7 @@

 #include "sysemu/reset.h"

 #include "sysemu/hw_accel.h"

 #include "qemu/error-report.h"

+#include "cpu-models.h"

 static void spapr_reset_vcpu(PowerPCCPU *cpu)

 {

@@ -259,6 +260,7 @@ static bool spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr,

 {

     CPUPPCState *env = &cpu->env;

     CPUState *cs = CPU(cpu);

+    SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr);

     if (!qdev_realize(DEVICE(cpu), NULL, errp)) {

         return false;

@@ -270,6 +272,17 @@ static bool spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr,

     /* Set time-base frequency to 512 MHz. vhyp must be set first. */

     cpu_ppc_tb_init(env, SPAPR_TIMEBASE_FREQ);

+    if (!smc->has_power9_support &&

+        (((spapr->max_compat_pvr &&

+           ppc_compat_cmp(spapr->max_compat_pvr,

+                          CPU_POWERPC_LOGICAL_3_00) >= 0)) ||

+          (!spapr->max_compat_pvr &&

+           ppc_check_compat(cpu, CPU_POWERPC_LOGICAL_3_00, 0, 0)))) {

+        error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,

+                  "POWER9 CPU is not supported by this machine class");

+        return false;

+    }

+

     if (spapr_irq_cpu_intc_create(spapr, cpu, errp) < 0) {

         qdev_unrealize(DEVICE(cpu));

         return false;

diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h

index f5c33dcc86..4a68e0a901 100644

--- a/include/hw/ppc/spapr.h

+++ b/include/hw/ppc/spapr.h

@@ -154,6 +154,7 @@ struct SpaprMachineClass {

     bool pre_5_2_numa_associativity;

     bool pre_6_2_numa_affinity;

+    bool has_power9_support;

     bool (*phb_placement)(SpaprMachineState *spapr, uint32_t index,

                           uint64_t *buid, hwaddr *pio,

                           hwaddr *mmio32, hwaddr *mmio64,

@@ -241,6 +242,9 @@ struct SpaprMachineState {

     /* Set by -boot */

     char *boot_device;

+    /* Secure Guest support via x-svm-allowed */

+    bool svm_allowed;

+

     /*< public >*/

     char *kvm_type;

     char *host_model;

diff --git a/target/ppc/compat.c b/target/ppc/compat.c

index 7949a24f5a..f207a9ba01 100644

--- a/target/ppc/compat.c

+++ b/target/ppc/compat.c

@@ -114,8 +114,19 @@ static const CompatInfo *compat_by_pvr(uint32_t pvr)

     return NULL;

 }

+long ppc_compat_cmp(uint32_t pvr1, uint32_t pvr2)

+{

+    const CompatInfo *compat1 = compat_by_pvr(pvr1);

+    const CompatInfo *compat2 = compat_by_pvr(pvr2);

+

+    g_assert(compat1);

+    g_assert(compat2);

+

+    return compat1 - compat2;

+}

+

 static bool pcc_compat(PowerPCCPUClass *pcc, uint32_t compat_pvr,

-                       uint32_t min_compat_pvr, uint32_t max_compat_pvr)

+                      uint32_t min_compat_pvr, uint32_t max_compat_pvr)

 {

     const CompatInfo *compat = compat_by_pvr(compat_pvr);

     const CompatInfo *min = compat_by_pvr(min_compat_pvr);

diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h

index 047b24ba50..79c5ac50b9 100644

--- a/target/ppc/cpu.h

+++ b/target/ppc/cpu.h

@@ -1462,6 +1462,7 @@ static inline int cpu_mmu_index(CPUPPCState *env, bool ifetch)

 /* Compatibility modes */

 #if defined(TARGET_PPC64)

+long ppc_compat_cmp(uint32_t pvr1, uint32_t pvr2);

 bool ppc_check_compat(PowerPCCPU *cpu, uint32_t compat_pvr,

                       uint32_t min_compat_pvr, uint32_t max_compat_pvr);

 bool ppc_type_check_compat(const char *cputype, uint32_t compat_pvr,

diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c

index dc93b99189..154888cce5 100644

--- a/target/ppc/kvm.c

+++ b/target/ppc/kvm.c

@@ -90,6 +90,7 @@ static int cap_ppc_nested_kvm_hv;

 static int cap_large_decr;

 static int cap_fwnmi;

 static int cap_rpt_invalidate;

+static int cap_ppc_secure_guest;

 static uint32_t debug_inst_opcode;

@@ -137,6 +138,7 @@ int kvm_arch_init(MachineState *ms, KVMState *s)

     cap_resize_hpt = kvm_vm_check_extension(s, KVM_CAP_SPAPR_RESIZE_HPT);

     kvmppc_get_cpu_characteristics(s);

     cap_ppc_nested_kvm_hv = kvm_vm_check_extension(s, KVM_CAP_PPC_NESTED_HV);

+    cap_ppc_secure_guest = kvm_vm_check_extension(s, KVM_CAP_PPC_SECURE_GUEST);

     cap_large_decr = kvmppc_get_dec_bits();

     cap_fwnmi = kvm_vm_check_extension(s, KVM_CAP_PPC_FWNMI);

     /*

@@ -2563,6 +2565,16 @@ int kvmppc_has_cap_rpt_invalidate(void)

     return cap_rpt_invalidate;

 }

+bool kvmppc_has_cap_secure_guest(void)

+{

+    return !!cap_ppc_secure_guest;

+}

+

+int kvmppc_enable_cap_secure_guest(void)

+{

+    return kvm_vm_enable_cap(kvm_state, KVM_CAP_PPC_SECURE_GUEST, 0, 1);

+}

+

 PowerPCCPUClass *kvm_ppc_get_host_cpu_class(void)

 {

     uint32_t host_pvr = mfpvr();

@@ -2959,3 +2971,18 @@ bool kvm_arch_cpu_check_are_resettable(void)

 {

     return true;

 }

+

+void kvmppc_svm_allow(Error **errp)

+{

+    if (!kvm_enabled()) {

+        error_setg(errp, "No PEF support in tcg, try x-svm-allowed=off");

+        return;

+    }

+

+    if (!kvmppc_has_cap_secure_guest()) {

+        error_setg(errp, "KVM implementation does not support secure guests, "

+                   "try x-svm-allowed=off");

+    } else if (kvmppc_enable_cap_secure_guest() < 0) {

+        error_setg(errp, "Error enabling x-svm-allowed, try x-svm-allowed=off");

+    }

+}

diff --git a/target/ppc/kvm_ppc.h b/target/ppc/kvm_ppc.h

index ee9325bf9a..20dbb95989 100644

--- a/target/ppc/kvm_ppc.h

+++ b/target/ppc/kvm_ppc.h

@@ -40,6 +40,7 @@ int kvmppc_booke_watchdog_enable(PowerPCCPU *cpu);

 target_ulong kvmppc_configure_v3_mmu(PowerPCCPU *cpu,

                                      bool radix, bool gtse,

                                      uint64_t proc_tbl);

+void kvmppc_svm_allow(Error **errp);

 #ifndef CONFIG_USER_ONLY

 bool kvmppc_spapr_use_multitce(void);

 int kvmppc_spapr_enable_inkernel_multitce(void);

@@ -74,6 +75,8 @@ int kvmppc_get_cap_large_decr(void);

 int kvmppc_enable_cap_large_decr(PowerPCCPU *cpu, int enable);

 int kvmppc_has_cap_rpt_invalidate(void);

 int kvmppc_enable_hwrng(void);

+bool kvmppc_has_cap_secure_guest(void);

+int kvmppc_enable_cap_secure_guest(void);

 int kvmppc_put_books_sregs(PowerPCCPU *cpu);

 PowerPCCPUClass *kvm_ppc_get_host_cpu_class(void);

 void kvmppc_check_papr_resize_hpt(Error **errp);

@@ -393,6 +396,16 @@ static inline int kvmppc_has_cap_rpt_invalidate(void)

     return false;

 }

+static inline bool kvmppc_has_cap_secure_guest(void)

+{

+    return false;

+}

+

+static inline int kvmppc_enable_cap_secure_guest(void)

+{

+    return -1;

+}

+

 static inline int kvmppc_enable_hwrng(void)

 {

     return -1;

-- 

2.31.1