Re: [PATCH 4/5] hw/smbios: use qapi for SMBIOS entry point type enum

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 9/8/20 6:54 PM, Daniel P. Berrangé wrote:
> This refactoring prepares for exposing the SMBIOS entry point type as a
> machine property on x86.
> 
> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
> ---
>  hw/arm/virt.c                |  2 +-
>  hw/i386/pc_piix.c            |  2 +-
>  hw/i386/pc_q35.c             |  2 +-
>  hw/smbios/smbios.c           |  9 +++++----
>  include/hw/firmware/smbios.h |  9 ++-------
>  qapi/machine.json            | 12 ++++++++++++
>  6 files changed, 22 insertions(+), 14 deletions(-)
> 
> diff --git a/hw/arm/virt.c b/hw/arm/virt.c
> index acf9bfbece..fd32b10f75 100644
> --- a/hw/arm/virt.c
> +++ b/hw/arm/virt.c
> @@ -1450,7 +1450,7 @@ static void virt_build_smbios(VirtMachineState *vms)
>  
>      smbios_set_defaults("QEMU", product,
>                          vmc->smbios_old_sys_ver ? "1.0" : mc->name, false,
> -                        true, SMBIOS_ENTRY_POINT_30);
> +                        true, SMBIOS_ENTRY_POINT_TYPE_3_0);
>  
>      smbios_get_tables(MACHINE(vms), NULL, 0, &smbios_tables, &smbios_tables_len,
>                        &smbios_anchor, &smbios_anchor_len);
> diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
> index 32b1453e6a..1c5bc6ae6e 100644
> --- a/hw/i386/pc_piix.c
> +++ b/hw/i386/pc_piix.c
> @@ -179,7 +179,7 @@ static void pc_init1(MachineState *machine,
>          smbios_set_defaults("QEMU", "Standard PC (i440FX + PIIX, 1996)",
>                              mc->name, pcmc->smbios_legacy_mode,
>                              pcmc->smbios_uuid_encoded,
> -                            SMBIOS_ENTRY_POINT_21);
> +                            SMBIOS_ENTRY_POINT_TYPE_2_1);
>      }
>  
>      /* allocate ram and load rom/bios */
> diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
> index 0cb9c18cd4..cc202407c7 100644
> --- a/hw/i386/pc_q35.c
> +++ b/hw/i386/pc_q35.c
> @@ -204,7 +204,7 @@ static void pc_q35_init(MachineState *machine)
>          smbios_set_defaults("QEMU", "Standard PC (Q35 + ICH9, 2009)",
>                              mc->name, pcmc->smbios_legacy_mode,
>                              pcmc->smbios_uuid_encoded,
> -                            SMBIOS_ENTRY_POINT_21);
> +                            SMBIOS_ENTRY_POINT_TYPE_2_1);
>      }
>  
>      /* allocate ram and load rom/bios */
> diff --git a/hw/smbios/smbios.c b/hw/smbios/smbios.c
> index 3c87be6c91..c99c9b01ae 100644
> --- a/hw/smbios/smbios.c
> +++ b/hw/smbios/smbios.c
> @@ -61,7 +61,7 @@ uint8_t *smbios_tables;
>  size_t smbios_tables_len;
>  unsigned smbios_table_max;
>  unsigned smbios_table_cnt;
> -static SmbiosEntryPointType smbios_ep_type = SMBIOS_ENTRY_POINT_21;
> +static SmbiosEntryPointType smbios_ep_type = SMBIOS_ENTRY_POINT_TYPE_2_1;
>  
>  static SmbiosEntryPoint ep;
>  
> @@ -383,7 +383,7 @@ static void smbios_validate_table(MachineState *ms)
>          exit(1);
>      }
>  
> -    if (smbios_ep_type == SMBIOS_ENTRY_POINT_21 &&
> +    if (smbios_ep_type == SMBIOS_ENTRY_POINT_TYPE_2_1 &&
>          smbios_tables_len > SMBIOS_21_MAX_TABLES_LEN) {
>          error_report("SMBIOS 2.1 table length %zu exceeds %d",
>                       smbios_tables_len, SMBIOS_21_MAX_TABLES_LEN);
> @@ -831,7 +831,7 @@ void smbios_set_defaults(const char *manufacturer, const char *product,
>  static void smbios_entry_point_setup(void)
>  {
>      switch (smbios_ep_type) {
> -    case SMBIOS_ENTRY_POINT_21:
> +    case SMBIOS_ENTRY_POINT_TYPE_2_1:
>          memcpy(ep.ep21.anchor_string, "_SM_", 4);
>          memcpy(ep.ep21.intermediate_anchor_string, "_DMI_", 5);
>          ep.ep21.length = sizeof(struct smbios_21_entry_point);
> @@ -854,7 +854,7 @@ static void smbios_entry_point_setup(void)
>          ep.ep21.structure_table_address = cpu_to_le32(0);
>  
>          break;
> -    case SMBIOS_ENTRY_POINT_30:
> +    case SMBIOS_ENTRY_POINT_TYPE_3_0:
>          memcpy(ep.ep30.anchor_string, "_SM3_", 5);
>          ep.ep30.length = sizeof(struct smbios_30_entry_point);
>          ep.ep30.entry_point_revision = 1;
> @@ -939,6 +939,7 @@ void smbios_get_tables(MachineState *ms,
>      *tables = smbios_tables;
>      *tables_len = smbios_tables_len;
>      *anchor = (uint8_t *)&ep;
> +    g_printerr("Total len %zu\n", smbios_tables_len);

This seems to belong to patch 2 of this series:
"hw/smbios: report error if table size is too large"

Otherwise:
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

>  
>      /* calculate length based on anchor string */
>      if (!strncmp((char *)&ep, "_SM_", 4)) {
> diff --git a/include/hw/firmware/smbios.h b/include/hw/firmware/smbios.h
> index 02a0ced0a0..cb1299ad7a 100644
> --- a/include/hw/firmware/smbios.h
> +++ b/include/hw/firmware/smbios.h
> @@ -1,6 +1,8 @@
>  #ifndef QEMU_SMBIOS_H
>  #define QEMU_SMBIOS_H
>  
> +#include "qapi/qapi-types-machine.h"
> +
>  /*
>   * SMBIOS Support
>   *
> @@ -23,13 +25,6 @@ struct smbios_phys_mem_area {
>      uint64_t length;
>  };
>  
> -/*
> - * SMBIOS spec defined tables
> - */
> -typedef enum SmbiosEntryPointType {
> -    SMBIOS_ENTRY_POINT_21,
> -    SMBIOS_ENTRY_POINT_30,
> -} SmbiosEntryPointType;
>  
>  /* SMBIOS Entry Point
>   * There are two types of entry points defined in the SMBIOS specification
> diff --git a/qapi/machine.json b/qapi/machine.json
> index abc6fd0477..a58cf2694f 100644
> --- a/qapi/machine.json
> +++ b/qapi/machine.json
> @@ -937,3 +937,15 @@
>    'data': 'NumaOptions',
>    'allow-preconfig': true
>  }
> +
> +##
> +# @SmbiosEntryPointType:
> +#
> +# @2_1: SMBIOS version 2.1
> +#
> +# @3_0: SMBIOS version 3.0
> +#
> +# Since: 5.2
> +##
> +{ 'enum': 'SmbiosEntryPointType',
> +  'data': [ '2_1', '3_0' ] }
>