hw/arm/virt: Add gic-version option to virt machine

Add gic_version to VirtMachineState, set it to value of the option
and pass it around where necessary. Instantiate devices and fdt
nodes according to the choice.

max_cpus for virt machine increased to 123 (calculated from redistributor
space available in the memory map). GICv2 compatibility check happens
inside arm_gic_common_realize().

ITS region is added to the memory map too, however currently it not used,
just reserved.

Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Tested-by: Ashok kumar <ashoks@broadcom.com>
[PMM: Added missing cpu_to_le* calls, thanks to Shannon Zhao]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 32 insertions, 22 deletions

diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index 9088248c3a..59c84ff27e 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -443,33 +443,43 @@ build_madt(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info,
 
     madt = acpi_data_push(table_data, sizeof *madt);
 
-    for (i = 0; i < guest_info->smp_cpus; i++) {
-        AcpiMadtGenericInterrupt *gicc = acpi_data_push(table_data,
-                                                     sizeof *gicc);
-        gicc->type = ACPI_APIC_GENERIC_INTERRUPT;
-        gicc->length = sizeof(*gicc);
-        gicc->base_address = memmap[VIRT_GIC_CPU].base;
-        gicc->cpu_interface_number = i;
-        gicc->arm_mpidr = i;
-        gicc->uid = i;
-        if (test_bit(i, cpuinfo->found_cpus)) {
-            gicc->flags = cpu_to_le32(ACPI_GICC_ENABLED);
-        }
-    }
-
     gicd = acpi_data_push(table_data, sizeof *gicd);
     gicd->type = ACPI_APIC_GENERIC_DISTRIBUTOR;
     gicd->length = sizeof(*gicd);
     gicd->base_address = memmap[VIRT_GIC_DIST].base;
 
-    gic_msi = acpi_data_push(table_data, sizeof *gic_msi);
-    gic_msi->type = ACPI_APIC_GENERIC_MSI_FRAME;
-    gic_msi->length = sizeof(*gic_msi);
-    gic_msi->gic_msi_frame_id = 0;
-    gic_msi->base_address = cpu_to_le64(memmap[VIRT_GIC_V2M].base);
-    gic_msi->flags = cpu_to_le32(1);
-    gic_msi->spi_count = cpu_to_le16(NUM_GICV2M_SPIS);
-    gic_msi->spi_base = cpu_to_le16(irqmap[VIRT_GIC_V2M] + ARM_SPI_BASE);
+    if (guest_info->gic_version == 3) {
+        AcpiMadtGenericRedistributor *gicr = acpi_data_push(table_data,
+                                                         sizeof *gicr);
+
+        gicr->type = ACPI_APIC_GENERIC_REDISTRIBUTOR;
+        gicr->length = sizeof(*gicr);
+        gicr->base_address = cpu_to_le64(memmap[VIRT_GIC_REDIST].base);
+        gicr->range_length = cpu_to_le32(memmap[VIRT_GIC_REDIST].size);
+    } else {
+        for (i = 0; i < guest_info->smp_cpus; i++) {
+            AcpiMadtGenericInterrupt *gicc = acpi_data_push(table_data,
+                                                         sizeof *gicc);
+            gicc->type = ACPI_APIC_GENERIC_INTERRUPT;
+            gicc->length = sizeof(*gicc);
+            gicc->base_address = memmap[VIRT_GIC_CPU].base;
+            gicc->cpu_interface_number = i;
+            gicc->arm_mpidr = i;
+            gicc->uid = i;
+            if (test_bit(i, cpuinfo->found_cpus)) {
+                gicc->flags = cpu_to_le32(ACPI_GICC_ENABLED);
+            }
+        }
+
+        gic_msi = acpi_data_push(table_data, sizeof *gic_msi);
+        gic_msi->type = ACPI_APIC_GENERIC_MSI_FRAME;
+        gic_msi->length = sizeof(*gic_msi);
+        gic_msi->gic_msi_frame_id = 0;
+        gic_msi->base_address = cpu_to_le64(memmap[VIRT_GIC_V2M].base);
+        gic_msi->flags = cpu_to_le32(1);
+        gic_msi->spi_count = cpu_to_le16(NUM_GICV2M_SPIS);
+        gic_msi->spi_base = cpu_to_le16(irqmap[VIRT_GIC_V2M] + ARM_SPI_BASE);
+    }
 
     build_header(linker, table_data,
                  (void *)(table_data->data + madt_start), "APIC",