mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-24 12:09:58 +00:00
e461078163
build_append_foo() API doesn't need explicit endianness conversions
which eliminates a source of errors and it makes build_mcfg() look like
declarative definition of MCFG table in ACPI spec, which makes it easy
to review.
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Suggested-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
v3:
* add some comment on the Configuration Space base address allocation
structure
v2:
* miss the reserved[8] of MCFG in last version, add it back
* drop SOBs and make sure bios-tables-test all OK
Message-Id: <20190521062836.6541-3-richardw.yang@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
/*
|
|
* Support for generating PCI related ACPI tables and passing them to Guests
|
|
*
|
|
* Copyright (C) 2006 Fabrice Bellard
|
|
* Copyright (C) 2008-2010 Kevin O'Connor <kevin@koconnor.net>
|
|
* Copyright (C) 2013-2019 Red Hat Inc
|
|
* Copyright (C) 2019 Intel Corporation
|
|
*
|
|
* Author: Wei Yang <richardw.yang@linux.intel.com>
|
|
* Author: Michael S. Tsirkin <mst@redhat.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "hw/acpi/aml-build.h"
|
|
#include "hw/acpi/pci.h"
|
|
#include "hw/pci/pcie_host.h"
|
|
|
|
void build_mcfg(GArray *table_data, BIOSLinker *linker, AcpiMcfgInfo *info)
|
|
{
|
|
int mcfg_start = table_data->len;
|
|
|
|
/*
|
|
* PCI Firmware Specification, Revision 3.0
|
|
* 4.1.2 MCFG Table Description.
|
|
*/
|
|
acpi_data_push(table_data, sizeof(AcpiTableHeader));
|
|
/* Reserved */
|
|
build_append_int_noprefix(table_data, 0, 8);
|
|
|
|
/*
|
|
* Memory Mapped Enhanced Configuration Space Base Address Allocation
|
|
* Structure
|
|
*/
|
|
/* Base address, processor-relative */
|
|
build_append_int_noprefix(table_data, info->base, 8);
|
|
/* PCI segment group number */
|
|
build_append_int_noprefix(table_data, 0, 2);
|
|
/* Starting PCI Bus number */
|
|
build_append_int_noprefix(table_data, 0, 1);
|
|
/* Final PCI Bus number */
|
|
build_append_int_noprefix(table_data, PCIE_MMCFG_BUS(info->size - 1), 1);
|
|
/* Reserved */
|
|
build_append_int_noprefix(table_data, 0, 4);
|
|
|
|
build_header(linker, table_data, (void *)(table_data->data + mcfg_start),
|
|
"MCFG", table_data->len - mcfg_start, 1, NULL, NULL);
|
|
}
|
|
|