Re: [Qemu-devel] [PATCH 2/5] pc: Postpone SMBIOS table installation to post machine init

["Michael S. Tsirkin" <mst@redhat.com>]

On Wed, Feb 24, 2016 at 12:59:13PM -0600, minyard@acm.org wrote:
> From: Corey Minyard <cminyard@mvista.com>
> 
> This is the same place that the ACPI SSDT table gets added, so that
> devices can add themselves to the SMBIOS table.
> 
> Signed-off-by: Corey Minyard <cminyard@mvista.com>

This changes the order of fw cfg files, which
is guest visible.
Need to make it depend on either machine type
or the presence of ipmi somehow.

> ---
>  hw/i386/pc.c | 11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)
> 
> diff --git a/hw/i386/pc.c b/hw/i386/pc.c
> index 0aeefd2..da8fc76 100644
> --- a/hw/i386/pc.c
> +++ b/hw/i386/pc.c
> @@ -778,8 +778,6 @@ static FWCfgState *bochs_bios_init(AddressSpace *as)
>                       acpi_tables, acpi_tables_len);
>      fw_cfg_add_i32(fw_cfg, FW_CFG_IRQ0_OVERRIDE, kvm_allows_irq0_override());
>  
> -    pc_build_smbios(fw_cfg);
> -
>      fw_cfg_add_bytes(fw_cfg, FW_CFG_E820_TABLE,
>                       &e820_reserve, sizeof(e820_reserve));
>      fw_cfg_add_file(fw_cfg, "etc/e820", e820_table,
> @@ -1161,6 +1159,7 @@ void pc_machine_done(Notifier *notifier, void *data)
>  {
>      PCMachineState *pcms = container_of(notifier,
>                                          PCMachineState, machine_done);
> +    FWCfgState *fw_cfg = pcms->fw_cfg;
>      PCIBus *bus = pcms->bus;
>  
>      if (bus) {
> @@ -1172,15 +1171,17 @@ void pc_machine_done(Notifier *notifier, void *data)
>                  extra_hosts++;
>              }
>          }
> -        if (extra_hosts && pcms->fw_cfg) {
> +        if (extra_hosts && fw_cfg) {
>              uint64_t *val = g_malloc(sizeof(*val));
>              *val = cpu_to_le64(extra_hosts);
> -            fw_cfg_add_file(pcms->fw_cfg,
> -                    "etc/extra-pci-roots", val, sizeof(*val));
> +            fw_cfg_add_file(fw_cfg, "etc/extra-pci-roots", val, sizeof(*val));
>          }
>      }
>  
>      acpi_setup();
> +    if (fw_cfg) {
> +        pc_build_smbios(fw_cfg);
> +    }
>  }
>  
>  void pc_guest_info_init(PCMachineState *pcms)
> -- 
> 2.5.0