Re: [PATCH v2 05/13] acpi: move acpi_init_common_fadt_data to acpi-common.c

[Igor Mammedov <imammedo@redhat.com>]

On Tue,  5 May 2020 15:42:57 +0200
Gerd Hoffmann <kraxel@redhat.com> wrote:

the same question like with FACS, why legacy data are needed for with reduced profile?
it mostly initializes data for fixed-hw model.

I'd preffer if you drop FACS and use minimal FADT like build_fadt_rev5() does
without pulling along a bunch of legacy junk (unless there is a good justification for it).

> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>  hw/i386/acpi-common.h |  5 ++++-
>  hw/i386/acpi-build.c  | 43 +------------------------------------------
>  hw/i386/acpi-common.c | 43 +++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 48 insertions(+), 43 deletions(-)
> 
> diff --git a/hw/i386/acpi-common.h b/hw/i386/acpi-common.h
> index 583c320bbe7d..5788a13da9ca 100644
> --- a/hw/i386/acpi-common.h
> +++ b/hw/i386/acpi-common.h
> @@ -1,7 +1,8 @@
>  #ifndef HW_I386_ACPI_COMMON_H
>  #define HW_I386_ACPI_COMMON_H
> +
> +#include "include/hw/acpi/acpi-defs.h"
>  #include "include/hw/acpi/acpi_dev_interface.h"
> -
>  #include "include/hw/acpi/bios-linker-loader.h"
>  #include "include/hw/i386/x86.h"
>  
> @@ -12,5 +13,7 @@ void acpi_build_madt(GArray *table_data, BIOSLinker *linker,
>                       X86MachineState *x86ms, AcpiDeviceIf *adev,
>                       bool has_pci);
>  void acpi_build_facs(GArray *table_data);
> +void acpi_init_common_fadt_data(MachineState *ms, Object *o,
> +                                AcpiFadtData *data);
>  
>  #endif
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index a69b85a266e7..d1f14394734e 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -132,47 +132,6 @@ const struct AcpiGenericAddress x86_nvdimm_acpi_dsmio = {
>      .bit_width = NVDIMM_ACPI_IO_LEN << 3
>  };
>  
> -static void init_common_fadt_data(MachineState *ms, Object *o,
> -                                  AcpiFadtData *data)
> -{
> -    uint32_t io = object_property_get_uint(o, ACPI_PM_PROP_PM_IO_BASE, NULL);
> -    AmlAddressSpace as = AML_AS_SYSTEM_IO;
> -    AcpiFadtData fadt = {
> -        .rev = 3,
> -        .flags =
> -            (1 << ACPI_FADT_F_WBINVD) |
> -            (1 << ACPI_FADT_F_PROC_C1) |
> -            (1 << ACPI_FADT_F_SLP_BUTTON) |
> -            (1 << ACPI_FADT_F_RTC_S4) |
> -            (1 << ACPI_FADT_F_USE_PLATFORM_CLOCK) |
> -            /* APIC destination mode ("Flat Logical") has an upper limit of 8
> -             * CPUs for more than 8 CPUs, "Clustered Logical" mode has to be
> -             * used
> -             */
> -            ((ms->smp.max_cpus > 8) ?
> -                        (1 << ACPI_FADT_F_FORCE_APIC_CLUSTER_MODEL) : 0),
> -        .int_model = 1 /* Multiple APIC */,
> -        .rtc_century = RTC_CENTURY,
> -        .plvl2_lat = 0xfff /* C2 state not supported */,
> -        .plvl3_lat = 0xfff /* C3 state not supported */,
> -        .smi_cmd = ACPI_PORT_SMI_CMD,
> -        .sci_int = object_property_get_uint(o, ACPI_PM_PROP_SCI_INT, NULL),
> -        .acpi_enable_cmd =
> -            object_property_get_uint(o, ACPI_PM_PROP_ACPI_ENABLE_CMD, NULL),
> -        .acpi_disable_cmd =
> -            object_property_get_uint(o, ACPI_PM_PROP_ACPI_DISABLE_CMD, NULL),
> -        .pm1a_evt = { .space_id = as, .bit_width = 4 * 8, .address = io },
> -        .pm1a_cnt = { .space_id = as, .bit_width = 2 * 8,
> -                      .address = io + 0x04 },
> -        .pm_tmr = { .space_id = as, .bit_width = 4 * 8, .address = io + 0x08 },
> -        .gpe0_blk = { .space_id = as, .bit_width =
> -            object_property_get_uint(o, ACPI_PM_PROP_GPE0_BLK_LEN, NULL) * 8,
> -            .address = object_property_get_uint(o, ACPI_PM_PROP_GPE0_BLK, NULL)
> -        },
> -    };
> -    *data = fadt;
> -}
> -
>  static Object *object_resolve_type_unambiguous(const char *typename)
>  {
>      bool ambig;
> @@ -195,7 +154,7 @@ static void acpi_get_pm_info(MachineState *machine, AcpiPmInfo *pm)
>      pm->pcihp_io_len = 0;
>  
>      assert(obj);
> -    init_common_fadt_data(machine, obj, &pm->fadt);
> +    acpi_init_common_fadt_data(machine, obj, &pm->fadt);
>      if (piix) {
>          /* w2k requires FADT(rev1) or it won't boot, keep PC compatible */
>          pm->fadt.rev = 1;
> diff --git a/hw/i386/acpi-common.c b/hw/i386/acpi-common.c
> index 5187653893a8..69dfbf0252f3 100644
> --- a/hw/i386/acpi-common.c
> +++ b/hw/i386/acpi-common.c
> @@ -28,6 +28,8 @@
>  #include "hw/acpi/aml-build.h"
>  #include "hw/acpi/utils.h"
>  #include "hw/i386/pc.h"
> +#include "hw/isa/apm.h"
> +#include "hw/rtc/mc146818rtc_regs.h"
>  #include "target/i386/cpu.h"
>  
>  #include "acpi-build.h"
> @@ -161,3 +163,44 @@ void acpi_build_facs(GArray *table_data)
>      memcpy(&facs->signature, "FACS", 4);
>      facs->length = cpu_to_le32(sizeof(*facs));
>  }
> +
> +void acpi_init_common_fadt_data(MachineState *ms, Object *o,
> +                                AcpiFadtData *data)
> +{
> +    uint32_t io = object_property_get_uint(o, ACPI_PM_PROP_PM_IO_BASE, NULL);
> +    AmlAddressSpace as = AML_AS_SYSTEM_IO;
> +    AcpiFadtData fadt = {
> +        .rev = 3,
> +        .flags =
> +            (1 << ACPI_FADT_F_WBINVD) |
> +            (1 << ACPI_FADT_F_PROC_C1) |
> +            (1 << ACPI_FADT_F_SLP_BUTTON) |
> +            (1 << ACPI_FADT_F_RTC_S4) |
> +            (1 << ACPI_FADT_F_USE_PLATFORM_CLOCK) |
> +            /* APIC destination mode ("Flat Logical") has an upper limit of 8
> +             * CPUs for more than 8 CPUs, "Clustered Logical" mode has to be
> +             * used
> +             */
> +            ((ms->smp.max_cpus > 8) ?
> +                        (1 << ACPI_FADT_F_FORCE_APIC_CLUSTER_MODEL) : 0),
> +        .int_model = 1 /* Multiple APIC */,
> +        .rtc_century = RTC_CENTURY,
> +        .plvl2_lat = 0xfff /* C2 state not supported */,
> +        .plvl3_lat = 0xfff /* C3 state not supported */,
> +        .smi_cmd = ACPI_PORT_SMI_CMD,
> +        .sci_int = object_property_get_uint(o, ACPI_PM_PROP_SCI_INT, NULL),
> +        .acpi_enable_cmd =
> +            object_property_get_uint(o, ACPI_PM_PROP_ACPI_ENABLE_CMD, NULL),
> +        .acpi_disable_cmd =
> +            object_property_get_uint(o, ACPI_PM_PROP_ACPI_DISABLE_CMD, NULL),
> +        .pm1a_evt = { .space_id = as, .bit_width = 4 * 8, .address = io },
> +        .pm1a_cnt = { .space_id = as, .bit_width = 2 * 8,
> +                      .address = io + 0x04 },
> +        .pm_tmr = { .space_id = as, .bit_width = 4 * 8, .address = io + 0x08 },
> +        .gpe0_blk = { .space_id = as, .bit_width =
> +            object_property_get_uint(o, ACPI_PM_PROP_GPE0_BLK_LEN, NULL) * 8,
> +            .address = object_property_get_uint(o, ACPI_PM_PROP_GPE0_BLK, NULL)
> +        },
> +    };
> +    *data = fadt;
> +}