Re: [RFC PATCH-for-9.1 09/29] hw/i386/pc: Pass PCMachineState argument to acpi_setup()

[BALATON Zoltan]

On Thu, 28 Mar 2024, Philippe Mathieu-Daudé wrote:
> acpi_setup() caller knows about the machine state, so pass
> it as argument to avoid a qdev_get_machine() call.
>
> We already resolved X86_MACHINE(pcms) as 'x86ms' so use the
> latter.
>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
> hw/i386/acpi-build.h | 3 ++-
> hw/i386/acpi-build.c | 5 ++---
> hw/i386/pc.c         | 2 +-
> 3 files changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/hw/i386/acpi-build.h b/hw/i386/acpi-build.h
> index 0dce155c8c..31de5bddbd 100644
> --- a/hw/i386/acpi-build.h
> +++ b/hw/i386/acpi-build.h
> @@ -2,6 +2,7 @@
> #ifndef HW_I386_ACPI_BUILD_H
> #define HW_I386_ACPI_BUILD_H
> #include "hw/acpi/acpi-defs.h"
> +#include "hw/i386/pc.h"
>
> extern const struct AcpiGenericAddress x86_nvdimm_acpi_dsmio;
>
> @@ -9,7 +10,7 @@ extern const struct AcpiGenericAddress x86_nvdimm_acpi_dsmio;
> #define ACPI_PCIHP_SEJ_BASE 0x8
> #define ACPI_PCIHP_BNMR_BASE 0x10
>
> -void acpi_setup(void);
> +void acpi_setup(PCMachineState *pcms);

This is changed to PcPciMachineState * in a following patch so can't you 
already introduce it here to avoid some churn?

Regards,
BALATON Zoltan

> Object *acpi_get_i386_pci_host(void);
>
> #endif
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index 6e8e32e5d2..e702d5e9d2 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -2749,9 +2749,8 @@ static const VMStateDescription vmstate_acpi_build = {
>     },
> };
>
> -void acpi_setup(void)
> +void acpi_setup(PCMachineState *pcms)
> {
> -    PCMachineState *pcms = PC_MACHINE(qdev_get_machine());
>     X86MachineState *x86ms = X86_MACHINE(pcms);
>     AcpiBuildTables tables;
>     AcpiBuildState *build_state;
> @@ -2771,7 +2770,7 @@ void acpi_setup(void)
>         return;
>     }
>
> -    if (!x86_machine_is_acpi_enabled(X86_MACHINE(pcms))) {
> +    if (!x86_machine_is_acpi_enabled(x86ms)) {
>         ACPI_BUILD_DPRINTF("ACPI disabled. Bailing out.\n");
>         return;
>     }
> diff --git a/hw/i386/pc.c b/hw/i386/pc.c
> index 6d87d1d4c2..dfc0247bb6 100644
> --- a/hw/i386/pc.c
> +++ b/hw/i386/pc.c
> @@ -601,7 +601,7 @@ void pc_machine_done(Notifier *notifier, void *data)
>     /* set the number of CPUs */
>     x86_rtc_set_cpus_count(x86ms->rtc, x86ms->boot_cpus);
>
> -    acpi_setup();
> +    acpi_setup(pcms);
>     if (x86ms->fw_cfg) {
>         fw_cfg_build_smbios(pcms, x86ms->fw_cfg, pcms->smbios_entry_point_type);
>         fw_cfg_build_feature_control(MACHINE(pcms), x86ms->fw_cfg);