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Re: [Qemu-devel] [PATCH v4 for-2.3 10/25] hw/acpi: add support for multi
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCH v4 for-2.3 10/25] hw/acpi: add support for multiple root busses |
Date: |
Sun, 8 Mar 2015 17:10:41 +0100 |
On Sun, Mar 08, 2015 at 01:16:12PM +0200, Marcel Apfelbaum wrote:
> If the machine has several root busses, we need to add them to
> acpi in order to be properly detected by guests.
>
> Signed-off-by: Marcel Apfelbaum <address@hidden>
> ---
> hw/i386/acpi-build.c | 32 ++++++++++++++++++++++++++++++++
> 1 file changed, 32 insertions(+)
>
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index b94e47e..e5709e8 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -60,6 +60,8 @@
> #include "qom/qom-qobject.h"
> #include "exec/ram_addr.h"
>
> +#include "qmp-commands.h"
> +
> /* These are used to size the ACPI tables for -M pc-i440fx-1.7 and
> * -M pc-i440fx-2.0. Even if the actual amount of AML generated grows
> * a little bit, there should be plenty of free space since the DSDT
> @@ -682,6 +684,36 @@ build_ssdt(GArray *table_data, GArray *linker,
> /* Reserve space for header */
> acpi_data_push(ssdt->buf, sizeof(AcpiTableHeader));
>
> + {
> + PciInfoList *info_list, *info;
> + Error *err = NULL;
> +
> + info_list = qmp_query_pci(&err);
> + if (err) {
> + error_free(err);
> + return;
> + }
> +
> + for (info = info_list; info; info = info->next) {
> + PciInfo *bus_info = info->value;
> +
> + if (bus_info->bus == 0) {
> + continue;
> + }
> +
> + scope = aml_scope("\\_SB");
> + dev = aml_device("PC%.02X", (uint8_t)bus_info->bus);
> + aml_append(dev, aml_name_decl("_UID",
> + aml_string("PC%.02X", (uint8_t)bus_info->bus)));
> + aml_append(dev, aml_name_decl("_HID", aml_string("PNP0A03")));
> + aml_append(dev,
> + aml_name_decl("_BBN", aml_int((uint8_t)bus_info->bus)));
Hmm not all pci buses have hardware-assigned bus numbers,
a separate segment is also an option.
How about only getting your specific ones?
> + aml_append(scope, dev);
> + aml_append(ssdt, scope);
> + }
> + qapi_free_PciInfoList(info_list);
> + }
> +
> scope = aml_scope("\\_SB.PCI0");
> /* build PCI0._CRS */
> crs = aml_resource_template();
> --
> 2.1.0
- Re: [Qemu-devel] [PATCH v4 for-2.3 05/25] acpi: add aml_index() term, (continued)
[Qemu-devel] [PATCH v4 for-2.3 07/25] acpi: add aml_shiftright() term, Marcel Apfelbaum, 2015/03/08
[Qemu-devel] [PATCH v4 for-2.3 08/25] acpi: add aml_increment() term, Marcel Apfelbaum, 2015/03/08
[Qemu-devel] [PATCH v4 for-2.3 09/25] acpi: add aml_while() term, Marcel Apfelbaum, 2015/03/08
[Qemu-devel] [PATCH v4 for-2.3 10/25] hw/acpi: add support for multiple root busses, Marcel Apfelbaum, 2015/03/08
- Re: [Qemu-devel] [PATCH v4 for-2.3 10/25] hw/acpi: add support for multiple root busses,
Michael S. Tsirkin <=
[Qemu-devel] [PATCH v4 for-2.3 11/25] hw/apci: add _PRT method for extra PCI root busses, Marcel Apfelbaum, 2015/03/08
[Qemu-devel] [PATCH v4 for-2.3 12/25] hw/acpi: add _CRS method for extra root busses, Marcel Apfelbaum, 2015/03/08
[Qemu-devel] [PATCH v4 for-2.3 13/25] hw/acpi: remove from root bus 0 the crs resources used by other busses., Marcel Apfelbaum, 2015/03/08