linux-kernel - Re: [PATCH 04/11] acpi/generic_event_device: Update GHES migration to cover hest addr

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Message-ID: <20250123103131.0000393d@huawei.com>
Date: Thu, 23 Jan 2025 10:31:31 +0000
From: Jonathan Cameron <Jonathan.Cameron@...wei.com>
To: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
CC: Igor Mammedov <imammedo@...hat.com>, "Michael S . Tsirkin"
	<mst@...hat.com>, Shiju Jose <shiju.jose@...wei.com>, <qemu-arm@...gnu.org>,
	<qemu-devel@...gnu.org>, Ani Sinha <anisinha@...hat.com>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 04/11] acpi/generic_event_device: Update GHES migration
 to cover hest addr

On Wed, 22 Jan 2025 16:46:21 +0100
Mauro Carvalho Chehab <mchehab+huawei@...nel.org> wrote:

> The GHES migration logic at GED should now support HEST table
> location too.
> 
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>

I'm not an expert on migration logic, but with that in mind, this looks fine to me.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>

> ---
>  hw/acpi/generic_event_device.c | 29 +++++++++++++++++++++++++++++
>  1 file changed, 29 insertions(+)
> 
> diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c
> index c85d97ca3776..5346cae573b7 100644
> --- a/hw/acpi/generic_event_device.c
> +++ b/hw/acpi/generic_event_device.c
> @@ -386,6 +386,34 @@ static const VMStateDescription vmstate_ghes_state = {
>      }
>  };
>  
> +static const VMStateDescription vmstate_hest = {
> +    .name = "acpi-hest",
> +    .version_id = 1,
> +    .minimum_version_id = 1,
> +    .fields = (const VMStateField[]) {
> +        VMSTATE_UINT64(hest_addr_le, AcpiGhesState),
> +        VMSTATE_END_OF_LIST()
> +    },
> +};
> +
> +static bool hest_needed(void *opaque)
> +{
> +    AcpiGedState *s = opaque;
> +    return s->ghes_state.hest_addr_le;
> +}
> +
> +static const VMStateDescription vmstate_hest_state = {
> +    .name = "acpi-ged/hest",
> +    .version_id = 1,
> +    .minimum_version_id = 1,
> +    .needed = hest_needed,
> +    .fields = (const VMStateField[]) {
> +        VMSTATE_STRUCT(ghes_state, AcpiGedState, 1,
> +                       vmstate_hest, AcpiGhesState),
> +        VMSTATE_END_OF_LIST()
> +    }
> +};
> +
>  static const VMStateDescription vmstate_acpi_ged = {
>      .name = "acpi-ged",
>      .version_id = 1,
> @@ -398,6 +426,7 @@ static const VMStateDescription vmstate_acpi_ged = {
>          &vmstate_memhp_state,
>          &vmstate_cpuhp_state,
>          &vmstate_ghes_state,
> +        &vmstate_hest_state,
>          NULL
>      }
>  };