mirrors/qemu
0
0
Fork 0
mirror of https://github.com/qemu/qemu.git synced 2025-01-26 15:40:11 +08:00
Code Issues Packages Projects Releases Wiki Activity

hw/arm/virt-acpi-build: Generate MCFG table

Browse Source 
Generate MCFG table for PCIe controller.

Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1432522520-8068-14-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Shannon Zhao 2015-05-29 11:28:57 +01:00 committed by Peter Maydell
parent d4bec5d876
commit 8434488400
1 changed files with 23 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
hw/arm/virt-acpi-build.c
View File

@ -39,6 +39,7 @@
#include "hw/loader.h"
#include "hw/hw.h"
#include "hw/acpi/aml-build.h"
#include "hw/pci/pcie_host.h"
#define ARM_SPI_BASE 32
@ -180,6 +181,25 @@ build_rsdp(GArray *rsdp_table, GArray *linker, unsigned rsdt)
return rsdp_table;
}
static void
build_mcfg(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info)
{
AcpiTableMcfg *mcfg;
const MemMapEntry *memmap = guest_info->memmap;
int len = sizeof(*mcfg) + sizeof(mcfg->allocation[0]);
mcfg = acpi_data_push(table_data, len);
mcfg->allocation[0].address = cpu_to_le64(memmap[VIRT_PCIE_ECAM].base);
/* Only a single allocation so no need to play with segments */
mcfg->allocation[0].pci_segment = cpu_to_le16(0);
mcfg->allocation[0].start_bus_number = 0;
mcfg->allocation[0].end_bus_number = (memmap[VIRT_PCIE_ECAM].size
/ PCIE_MMCFG_SIZE_MIN) - 1;
build_header(linker, table_data, (void *)mcfg, "MCFG", len, 5);
}
/* GTDT */
static void
build_gtdt(GArray *table_data, GArray *linker)
@ -350,6 +370,9 @@ void virt_acpi_build(VirtGuestInfo *guest_info, AcpiBuildTables *tables)
acpi_add_table(table_offsets, tables_blob);
build_gtdt(tables_blob, tables->linker);
acpi_add_table(table_offsets, tables_blob);
build_mcfg(tables_blob, tables->linker, guest_info);
/* RSDT is pointed to by RSDP */
rsdt = tables_blob->len;
build_rsdt(tables_blob, tables->linker, table_offsets);