Re: [RFC PATCH v2 04/15] cpu-model/s390: Introduce S390 CPU models

From: Alexander Graf
Date: Fri Feb 20 2015 - 08:54:32 EST

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On 17.02.15 15:24, Michael Mueller wrote:
> This patch implements the static part of the s390 cpu class definitions.
> It defines s390 cpu models by means of virtual cpu ids (enum) which contain
> information on the cpu generation, the machine class, the GA number and
> the machine type. The cpu id is used to instantiate a cpu class per cpu
> model.
>
> In addition the patch introduces the QMP enumeration AccelId. It is used
> to index certain cpu model poperties per accelerator.
>
> Furthermore it extends the existing S390CPUClass by model related properties.
>
> Signed-off-by: Michael Mueller <mimu@xxxxxxxxxxxxxxxxxx>
> Reviewed-by: Thomas Huth <thuth@xxxxxxxxxxxxxxxxxx>
> ---
> qapi-schema.json | 11 +++++++
> target-s390x/Makefile.objs | 1 +
> target-s390x/cpu-models.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++
> target-s390x/cpu-models.h | 71 +++++++++++++++++++++++++++++++++++++++++
> target-s390x/cpu-qom.h | 22 +++++++++++++
> target-s390x/cpu.c | 2 ++
> 6 files changed, 186 insertions(+)
> create mode 100644 target-s390x/cpu-models.c
> create mode 100644 target-s390x/cpu-models.h
>
> diff --git a/qapi-schema.json b/qapi-schema.json
> index e16f8eb..4d237c8 100644
> --- a/qapi-schema.json
> +++ b/qapi-schema.json
> @@ -2473,6 +2473,17 @@
> ##
> { 'command': 'query-machines', 'returns': ['MachineInfo'] }
>
> +
> +##
> +# @AccelId
> +#
> +# Defines accelerator ids
> +#
> +# Since: 2.3.0
> +##
> +{ 'enum': 'AccelId',
> + 'data': ['qtest', 'tcg', 'kvm', 'xen' ] }
> +
> ##
> # @CpuDefinitionInfo:
> #
> diff --git a/target-s390x/Makefile.objs b/target-s390x/Makefile.objs
> index 2c57494..9f55140 100644
> --- a/target-s390x/Makefile.objs
> +++ b/target-s390x/Makefile.objs
> @@ -1,5 +1,6 @@
> obj-y += translate.o helper.o cpu.o interrupt.o
> obj-y += int_helper.o fpu_helper.o cc_helper.o mem_helper.o misc_helper.o
> obj-y += gdbstub.o
> +obj-y += cpu-models.o
> obj-$(CONFIG_SOFTMMU) += machine.o ioinst.o arch_dump.o
> obj-$(CONFIG_KVM) += kvm.o
> diff --git a/target-s390x/cpu-models.c b/target-s390x/cpu-models.c
> new file mode 100644
> index 0000000..4841553
> --- /dev/null
> +++ b/target-s390x/cpu-models.c
> @@ -0,0 +1,79 @@
> +/*
> + * CPU models for s390
> + *
> + * Copyright 2014,2015 IBM Corp.
> + *
> + * Author(s): Michael Mueller <mimu@xxxxxxxxxxxxxxxxxx>
> + *
> + * This work is licensed under the terms of the GNU GPL, version 2 or (at
> + * your option) any later version. See the COPYING file in the top-level
> + * directory.
> + */
> +
> +#include "qemu-common.h"
> +#include "cpu-models.h"
> +
> +#define S390_PROC_DEF(_name, _cpu_id, _desc) \
> + static void \
> + glue(_cpu_id, _cpu_class_init) \
> + (ObjectClass *oc, void *data) \
> + { \
> + DeviceClass *dc = DEVICE_CLASS(oc); \
> + S390CPUClass *cc = S390_CPU_CLASS(oc); \
> + \
> + cc->is_active[ACCEL_ID_KVM] = true; \
> + cc->mach = g_malloc0(sizeof(S390CPUMachineProps)); \
> + cc->mach->ga = cpu_ga(_cpu_id); \
> + cc->mach->class = cpu_class(_cpu_id); \
> + cc->mach->order = cpu_order(_cpu_id); \
> + cc->proc = g_malloc0(sizeof(S390CPUProcessorProps)); \
> + cc->proc->gen = cpu_generation(_cpu_id); \
> + cc->proc->ver = S390_DEF_VERSION; \
> + cc->proc->id = S390_DEF_ID; \
> + cc->proc->type = cpu_type(_cpu_id); \
> + cc->proc->ibc = S390_DEF_IBC; \
> + dc->desc = _desc; \
> + } \
> + static const TypeInfo \
> + glue(_cpu_id, _cpu_type_info) = { \
> + .name = _name "-" TYPE_S390_CPU, \
> + .parent = TYPE_S390_CPU, \
> + .class_init = glue(_cpu_id, _cpu_class_init), \
> + }; \
> + static void \
> + glue(_cpu_id, _cpu_register_types)(void) \
> + { \
> + type_register_static( \
> + &glue(_cpu_id, _cpu_type_info)); \
> + } \
> + type_init(glue(_cpu_id, _cpu_register_types))
> +
> +/* define S390 CPU model classes */
> +S390_PROC_DEF("2064-ga1", CPU_S390_2064_GA1, "IBM zSeries 900 GA1")
> +S390_PROC_DEF("2064-ga2", CPU_S390_2064_GA2, "IBM zSeries 900 GA2")
> +S390_PROC_DEF("2064-ga3", CPU_S390_2064_GA3, "IBM zSeries 900 GA3")
> +S390_PROC_DEF("2066-ga1", CPU_S390_2066_GA1, "IBM zSeries 800 GA1")
> +S390_PROC_DEF("2084-ga1", CPU_S390_2084_GA1, "IBM zSeries 990 GA1")
> +S390_PROC_DEF("2084-ga2", CPU_S390_2084_GA2, "IBM zSeries 990 GA2")
> +S390_PROC_DEF("2084-ga3", CPU_S390_2084_GA3, "IBM zSeries 990 GA3")
> +S390_PROC_DEF("2084-ga4", CPU_S390_2084_GA4, "IBM zSeries 990 GA4")
> +S390_PROC_DEF("2084-ga5", CPU_S390_2084_GA5, "IBM zSeries 990 GA5")
> +S390_PROC_DEF("2086-ga1", CPU_S390_2086_GA1, "IBM zSeries 890 GA1")
> +S390_PROC_DEF("2086-ga2", CPU_S390_2086_GA2, "IBM zSeries 890 GA2")
> +S390_PROC_DEF("2086-ga3", CPU_S390_2086_GA3, "IBM zSeries 890 GA3")
> +S390_PROC_DEF("2094-ga1", CPU_S390_2094_GA1, "IBM System z9 EC GA1")
> +S390_PROC_DEF("2094-ga2", CPU_S390_2094_GA2, "IBM System z9 EC GA2")
> +S390_PROC_DEF("2094-ga3", CPU_S390_2094_GA3, "IBM System z9 EC GA3")
> +S390_PROC_DEF("2096-ga1", CPU_S390_2096_GA1, "IBM System z9 BC GA1")
> +S390_PROC_DEF("2096-ga2", CPU_S390_2096_GA2, "IBM System z9 BC GA2")
> +S390_PROC_DEF("2097-ga1", CPU_S390_2097_GA1, "IBM System z10 EC GA1")
> +S390_PROC_DEF("2097-ga2", CPU_S390_2097_GA2, "IBM System z10 EC GA2")
> +S390_PROC_DEF("2097-ga3", CPU_S390_2097_GA3, "IBM System z10 EC GA3")
> +S390_PROC_DEF("2098-ga1", CPU_S390_2098_GA1, "IBM System z10 BC GA1")
> +S390_PROC_DEF("2098-ga2", CPU_S390_2098_GA2, "IBM System z10 BC GA2")
> +S390_PROC_DEF("2817-ga1", CPU_S390_2817_GA1, "IBM zEnterprise 196 GA1")
> +S390_PROC_DEF("2817-ga2", CPU_S390_2817_GA2, "IBM zEnterprise 196 GA2")
> +S390_PROC_DEF("2818-ga1", CPU_S390_2818_GA1, "IBM zEnterprise 114 GA1")
> +S390_PROC_DEF("2827-ga1", CPU_S390_2827_GA1, "IBM zEnterprise EC12 GA1")
> +S390_PROC_DEF("2827-ga2", CPU_S390_2827_GA2, "IBM zEnterprise EC12 GA2")
> +S390_PROC_DEF("2828-ga1", CPU_S390_2828_GA1, "IBM zEnterprise BC12 GA1")
> diff --git a/target-s390x/cpu-models.h b/target-s390x/cpu-models.h
> new file mode 100644
> index 0000000..db681bf
> --- /dev/null
> +++ b/target-s390x/cpu-models.h
> @@ -0,0 +1,71 @@
> +/*
> + * CPU models for s390
> + *
> + * Copyright 2014,2015 IBM Corp.
> + *
> + * Author(s): Michael Mueller <mimu@xxxxxxxxxxxxxxxxxx>
> + *
> + * This work is licensed under the terms of the GNU GPL, version 2 or (at
> + * your option) any later version. See the COPYING file in the top-level
> + * directory.
> + */
> +
> +#ifndef TARGET_S390X_CPU_MODELS_H
> +#define TARGET_S390X_CPU_MODELS_H
> +
> +#define S390_EC 0x1
> +#define S390_BC 0x2
> +
> +#define S390_DEF_VERSION 0xff
> +#define S390_DEF_IBC 0x0
> +#define S390_DEF_ID 0xdecade
> +#define S390_DEF_TYPE 0x2064
> +
> +#define cpu_type(x) (((x) >> 0) & 0xffff)
> +#define cpu_order(x) (((x) >> 16) & 0xffff)
> +#define cpu_ga(x) (((x) >> 16) & 0xf)
> +#define cpu_class(x) (((x) >> 20) & 0x3)
> +#define cpu_generation(x) (((x) >> 24) & 0xff)
> +
> +/*
> + * bits 0-7 : CMOS generation
> + * bits 8-9 : reserved
> + * bits 10-11 : machine class 0=unknown 1=EC 2=BC
> + * bits 12-15 : GA
> + * bits 16-31 : machine type
> + *
> + * note: bits are named according to s390
> + * architecture specific endienness
> + */
> +enum {
> + CPU_S390_2064_GA1 = 0x07112064,
> + CPU_S390_2064_GA2 = 0x07122064,
> + CPU_S390_2064_GA3 = 0x07132064,
> + CPU_S390_2066_GA1 = 0x07212066,
> + CPU_S390_2084_GA1 = 0x08112084,
> + CPU_S390_2084_GA2 = 0x08122084,
> + CPU_S390_2084_GA3 = 0x08132084,
> + CPU_S390_2084_GA4 = 0x08142084,
> + CPU_S390_2084_GA5 = 0x08152084,
> + CPU_S390_2086_GA1 = 0x08212086,
> + CPU_S390_2086_GA2 = 0x08222086,
> + CPU_S390_2086_GA3 = 0x08232086,
> + CPU_S390_2094_GA1 = 0x09112094,
> + CPU_S390_2094_GA2 = 0x09122094,
> + CPU_S390_2094_GA3 = 0x09132094,
> + CPU_S390_2096_GA1 = 0x09212096,
> + CPU_S390_2096_GA2 = 0x09222096,
> + CPU_S390_2097_GA1 = 0x0a112097,
> + CPU_S390_2097_GA2 = 0x0a122097,
> + CPU_S390_2097_GA3 = 0x0a132097,
> + CPU_S390_2098_GA1 = 0x0a212098,
> + CPU_S390_2098_GA2 = 0x0a222098,
> + CPU_S390_2817_GA1 = 0x0b112817,
> + CPU_S390_2817_GA2 = 0x0b122817,
> + CPU_S390_2818_GA1 = 0x0b212818,
> + CPU_S390_2827_GA1 = 0x0c112827,
> + CPU_S390_2827_GA2 = 0x0c122827,
> + CPU_S390_2828_GA1 = 0x0c212828,
> +};
> +
> +#endif
> diff --git a/target-s390x/cpu-qom.h b/target-s390x/cpu-qom.h
> index 8b376df..1332147 100644
> --- a/target-s390x/cpu-qom.h
> +++ b/target-s390x/cpu-qom.h
> @@ -32,6 +32,23 @@
> #define S390_CPU_GET_CLASS(obj) \
> OBJECT_GET_CLASS(S390CPUClass, (obj), TYPE_S390_CPU)
>
> +/* machine related properties */
> +typedef struct S390CPUMachineProps {
> + uint16_t class; /* machine class */
> + uint16_t ga; /* availability number of machine */
> + uint16_t order; /* order of availability */
> +} S390CPUMachineProps;
> +
> +/* processor related properties */
> +typedef struct S390CPUProcessorProps {
> + uint16_t gen; /* S390 CMOS generation */
> + uint16_t ver; /* version of processor */
> + uint32_t id; /* processor identification*/
> + uint16_t type; /* machine type */
> + uint16_t ibc; /* IBC value */
> + uint64_t *fac_list; /* list of facilities */

Just make this uint64_t fac_list[2]. That way we don't have to track any
messy allocations.

Alex
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Next message: Vincent Guittot: "Re: [PATCH RESEND v9 10/10] sched: move cfs task on a CPU with higher capacity"
Previous message: Ryusuke Konishi: "[PATCH 1/1] nilfs2: fix potential memory overrun on inode"
In reply to: Michael Mueller: "[RFC PATCH v2 04/15] cpu-model/s390: Introduce S390 CPU models"
Next in thread: Michael Mueller: "Re: [Qemu-devel] [RFC PATCH v2 04/15] cpu-model/s390: Introduce S390 CPU models"
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