Re: [Qemu-devel] [PATCHv3 02/12] pseries: Remove rtas_addr and fdt_addr fields from machinestate

[Michael Roth <mdroth@linux.vnet.ibm.com>]

Quoting David Gibson (2016-10-24 00:04:33)
> These values are used only within ppc_spapr_reset(), so just change them
> to local variables.
> 
> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
> Reviewed-by: Thomas Huth <thuth@redhat.com>
> Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>

Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>

> ---
>  hw/ppc/spapr.c         | 14 +++++++-------
>  include/hw/ppc/spapr.h |  1 -
>  2 files changed, 7 insertions(+), 8 deletions(-)
> 
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index 0864411..2c1c7ff 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -1135,6 +1135,7 @@ static void ppc_spapr_reset(void)
>      sPAPRMachineState *spapr = SPAPR_MACHINE(machine);
>      PowerPCCPU *first_ppc_cpu;
>      uint32_t rtas_limit;
> +    hwaddr rtas_addr, fdt_addr;
>      void *fdt;
>      int rc;
> 
> @@ -1160,14 +1161,13 @@ static void ppc_spapr_reset(void)
>       * processed with 32-bit real mode code if necessary
>       */
>      rtas_limit = MIN(spapr->rma_size, RTAS_MAX_ADDR);
> -    spapr->rtas_addr = rtas_limit - RTAS_MAX_SIZE;
> -    spapr->fdt_addr = spapr->rtas_addr - FDT_MAX_SIZE;
> +    rtas_addr = rtas_limit - RTAS_MAX_SIZE;
> +    fdt_addr = rtas_addr - FDT_MAX_SIZE;
> 
> -    fdt = spapr_build_fdt(spapr, spapr->rtas_addr, spapr->rtas_size);
> +    fdt = spapr_build_fdt(spapr, rtas_addr, spapr->rtas_size);
> 
>      /* Copy RTAS over */
> -    cpu_physical_memory_write(spapr->rtas_addr, spapr->rtas_blob,
> -                              spapr->rtas_size);
> +    cpu_physical_memory_write(rtas_addr, spapr->rtas_blob, spapr->rtas_size);
> 
>      rc = fdt_pack(fdt);
> 
> @@ -1182,12 +1182,12 @@ static void ppc_spapr_reset(void)
> 
>      /* Load the fdt */
>      qemu_fdt_dumpdtb(fdt, fdt_totalsize(fdt));
> -    cpu_physical_memory_write(spapr->fdt_addr, fdt, fdt_totalsize(fdt));
> +    cpu_physical_memory_write(fdt_addr, fdt, fdt_totalsize(fdt));
>      g_free(fdt);
> 
>      /* Set up the entry state */
>      first_ppc_cpu = POWERPC_CPU(first_cpu);
> -    first_ppc_cpu->env.gpr[3] = spapr->fdt_addr;
> +    first_ppc_cpu->env.gpr[3] = fdt_addr;
>      first_ppc_cpu->env.gpr[5] = 0;
>      first_cpu->halted = 0;
>      first_ppc_cpu->env.nip = SPAPR_ENTRY_POINT;
> diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
> index aeaba3e..1174741 100644
> --- a/include/hw/ppc/spapr.h
> +++ b/include/hw/ppc/spapr.h
> @@ -63,7 +63,6 @@ struct sPAPRMachineState {
>      uint32_t htab_shift;
>      hwaddr rma_size;
>      int vrma_adjust;
> -    hwaddr fdt_addr, rtas_addr;
>      ssize_t rtas_size;
>      void *rtas_blob;
>      void *fdt_skel;
> -- 
> 2.7.4
>