diff mbox

[v5,12/20] hw/arm/virt-acpi-build: Add PCIe info and generate MCFG table

Message ID 1429104309-3844-13-git-send-email-zhaoshenglong@huawei.com
State New
Headers show

Commit Message

Shannon Zhao April 15, 2015, 1:25 p.m. UTC 
From: Shannon Zhao <shannon.zhao@linaro.org>

Add PCIe info struct, prepare for building PCIe table.
And generate MCFG table.

Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
---
 hw/arm/virt-acpi-build.c         | 21 +++++++++++++++++++++
 include/hw/arm/virt-acpi-build.h |  9 +++++++++
 2 files changed, 30 insertions(+)
diff mbox

Patch

diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index aa4acc6..85e8242 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -189,6 +189,24 @@  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;
+    AcpiPcieInfo *info = guest_info->pcie_info;
+    int len = sizeof(*mcfg) + sizeof(mcfg->allocation[0]);
+
+    mcfg = acpi_data_push(table_data, len);
+    mcfg->allocation[0].address = cpu_to_le64(info->pcie_ecam.addr);
+
+    /* 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 = info->nr_pcie_buses - 1;
+
+    build_header(linker, table_data, (void *)mcfg, "MCFG", len, 1);
+}
+
 /* GTDT */
 static void
 build_gtdt(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info)
@@ -361,6 +379,9 @@  void virt_acpi_build(VirtGuestInfo *guest_info, AcpiBuildTables *tables)
     acpi_add_table(table_offsets, tables_blob);
     build_gtdt(tables_blob, tables->linker, guest_info);
 
+    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);
diff --git a/include/hw/arm/virt-acpi-build.h b/include/hw/arm/virt-acpi-build.h
index 8f0b4a7..572864a 100644
--- a/include/hw/arm/virt-acpi-build.h
+++ b/include/hw/arm/virt-acpi-build.h
@@ -52,6 +52,14 @@  typedef struct AcpiDsdtInfo {
     const MemMap *flash_memmap;
 } AcpiDsdtInfo;
 
+typedef struct AcpiPcieInfo {
+    const int *pcie_irq;
+    MemMap pcie_mmio;
+    MemMap pcie_ioport;
+    MemMap pcie_ecam;
+    int nr_pcie_buses;
+} AcpiPcieInfo;
+
 typedef struct VirtGuestInfo {
     int smp_cpus;
     int max_cpus;
@@ -59,6 +67,7 @@  typedef struct VirtGuestInfo {
     AcpiMadtInfo *madt_info;
     AcpiDsdtInfo *dsdt_info;
     AcpiGtdtInfo *gtdt_info;
+    AcpiPcieInfo *pcie_info;
 } VirtGuestInfo;