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Re: [PATCH 2/6] hw/acpi/viot: move the individual PCI host bridge entry
From: |
Ani Sinha |
Subject: |
Re: [PATCH 2/6] hw/acpi/viot: move the individual PCI host bridge entry generation to a new function |
Date: |
Wed, 18 May 2022 17:19:18 +0530 |
On Wed, May 18, 2022 at 4:38 PM Mark Cave-Ayland
<mark.cave-ayland@ilande.co.uk> wrote:
>
> Instead of generating each table entry inline, move the individual PCI host
> bridge
> table entry generation to a separate build_pci_host_range() function.
>
> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Ani Sinha <ani@anisinha.ca>
> ---
> hw/acpi/viot.c | 48 +++++++++++++++++++++++++++---------------------
> 1 file changed, 27 insertions(+), 21 deletions(-)
>
> diff --git a/hw/acpi/viot.c b/hw/acpi/viot.c
> index 2897aa8c88..662124812f 100644
> --- a/hw/acpi/viot.c
> +++ b/hw/acpi/viot.c
> @@ -16,6 +16,31 @@ struct viot_pci_ranges {
> uint16_t output_node;
> };
>
> +static void build_pci_host_range(GArray *table_data, int min_bus, int
> max_bus,
> + uint16_t output_node)
> +{
> + /* Type */
> + build_append_int_noprefix(table_data, 1 /* PCI range */, 1);
> + /* Reserved */
> + build_append_int_noprefix(table_data, 0, 1);
> + /* Length */
> + build_append_int_noprefix(table_data, 24, 2);
> + /* Endpoint start */
> + build_append_int_noprefix(table_data, PCI_BUILD_BDF(min_bus, 0), 4);
> + /* PCI Segment start */
> + build_append_int_noprefix(table_data, 0, 2);
> + /* PCI Segment end */
> + build_append_int_noprefix(table_data, 0, 2);
> + /* PCI BDF start */
> + build_append_int_noprefix(table_data, PCI_BUILD_BDF(min_bus, 0), 2);
> + /* PCI BDF end */
> + build_append_int_noprefix(table_data, PCI_BUILD_BDF(max_bus, 0xff), 2);
> + /* Output node */
> + build_append_int_noprefix(table_data, output_node, 2);
> + /* Reserved */
> + build_append_int_noprefix(table_data, 0, 6);
> +}
> +
> /* Build PCI range for a given PCI host bridge */
> static int pci_host_bridges(Object *obj, void *opaque)
> {
> @@ -30,27 +55,8 @@ static int pci_host_bridges(Object *obj, void *opaque)
>
> pci_bus_range(bus, &min_bus, &max_bus);
>
> - /* Type */
> - build_append_int_noprefix(blob, 1 /* PCI range */, 1);
> - /* Reserved */
> - build_append_int_noprefix(blob, 0, 1);
> - /* Length */
> - build_append_int_noprefix(blob, 24, 2);
> - /* Endpoint start */
> - build_append_int_noprefix(blob, PCI_BUILD_BDF(min_bus, 0), 4);
> - /* PCI Segment start */
> - build_append_int_noprefix(blob, 0, 2);
> - /* PCI Segment end */
> - build_append_int_noprefix(blob, 0, 2);
> - /* PCI BDF start */
> - build_append_int_noprefix(blob, PCI_BUILD_BDF(min_bus, 0), 2);
> - /* PCI BDF end */
> - build_append_int_noprefix(blob, PCI_BUILD_BDF(max_bus, 0xff), 2);
> - /* Output node */
> - build_append_int_noprefix(blob, pci_ranges->output_node, 2);
> - /* Reserved */
> - build_append_int_noprefix(blob, 0, 6);
> -
> + build_pci_host_range(blob, min_bus, max_bus,
> + pci_ranges->output_node);
> pci_ranges->count++;
> }
> }
> --
> 2.20.1
>
[PATCH 2/6] hw/acpi/viot: move the individual PCI host bridge entry generation to a new function, Mark Cave-Ayland, 2022/05/18
- Re: [PATCH 2/6] hw/acpi/viot: move the individual PCI host bridge entry generation to a new function,
Ani Sinha <=
[PATCH 3/6] hw/acpi/viot: build array of PCI host bridges before generating VIOT ACPI table, Mark Cave-Ayland, 2022/05/18
[PATCH 4/6] tests/acpi: virt: allow VIOT acpi table changes, Mark Cave-Ayland, 2022/05/18
[PATCH 5/6] hw/acpi/viot: sort VIOT ACPI table entries by PCI host bus min_bus, Mark Cave-Ayland, 2022/05/18
[PATCH 6/6] tests/acpi: virt: update golden masters for VIOT, Mark Cave-Ayland, 2022/05/18