4c1608caa4
Add a RISC-V 'virt' machine to the graph. This implementation is a modified copy of the existing arm machine in arm-virt-machine.c It contains a virtio-mmio and a generic-pcihost controller. The generic-pcihost controller hardcodes assumptions from the ARM 'virt' machine, like ecam and pio_base addresses, so we'll add an extra step to set its parameters after creating it. Our command line is incremented with 'aclint' parameters to allow the machine to run MSI tests. Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Acked-by: Thomas Huth <thuth@redhat.com> Message-ID: <20240217192607.32565-7-dbarboza@ventanamicro.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
138 lines
4.1 KiB
C
138 lines
4.1 KiB
C
/*
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* libqos driver framework for risc-v
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*
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* Initial version based on arm-virt-machine.c
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*
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* Copyright (c) 2024 Ventana Micro
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1 as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>
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*/
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#include "qemu/osdep.h"
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#include "../libqtest.h"
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#include "qemu/module.h"
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#include "libqos-malloc.h"
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#include "qgraph.h"
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#include "virtio-mmio.h"
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#include "generic-pcihost.h"
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#include "hw/pci/pci_regs.h"
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#define RISCV_PAGE_SIZE 4096
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/* VIRT_DRAM */
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#define RISCV_VIRT_RAM_ADDR 0x80000000
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#define RISCV_VIRT_RAM_SIZE 0x20000000
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/*
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* VIRT_VIRTIO. BASE_ADDR points to the last
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* virtio_mmio device.
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*/
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#define VIRTIO_MMIO_BASE_ADDR 0x10008000
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#define VIRTIO_MMIO_SIZE 0x00001000
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/* VIRT_PCIE_PIO */
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#define RISCV_GPEX_PIO_BASE 0x3000000
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#define RISCV_BUS_PIO_LIMIT 0x10000
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/* VIRT_PCIE_MMIO */
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#define RISCV_BUS_MMIO_ALLOC_PTR 0x40000000
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#define RISCV_BUS_MMIO_LIMIT 0x80000000
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/* VIRT_PCIE_ECAM */
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#define RISCV_ECAM_ALLOC_PTR 0x30000000
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typedef struct QVirtMachine QVirtMachine;
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struct QVirtMachine {
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QOSGraphObject obj;
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QGuestAllocator alloc;
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QVirtioMMIODevice virtio_mmio;
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QGenericPCIHost bridge;
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};
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static void virt_destructor(QOSGraphObject *obj)
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{
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QVirtMachine *machine = (QVirtMachine *) obj;
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alloc_destroy(&machine->alloc);
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}
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static void *virt_get_driver(void *object, const char *interface)
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{
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QVirtMachine *machine = object;
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if (!g_strcmp0(interface, "memory")) {
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return &machine->alloc;
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}
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fprintf(stderr, "%s not present in riscv/virtio\n", interface);
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g_assert_not_reached();
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}
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static QOSGraphObject *virt_get_device(void *obj, const char *device)
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{
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QVirtMachine *machine = obj;
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if (!g_strcmp0(device, "generic-pcihost")) {
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return &machine->bridge.obj;
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} else if (!g_strcmp0(device, "virtio-mmio")) {
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return &machine->virtio_mmio.obj;
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}
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fprintf(stderr, "%s not present in riscv/virt\n", device);
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g_assert_not_reached();
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}
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static void riscv_config_qpci_bus(QGenericPCIBus *qpci)
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{
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qpci->gpex_pio_base = RISCV_GPEX_PIO_BASE;
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qpci->bus.pio_limit = RISCV_BUS_PIO_LIMIT;
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qpci->bus.mmio_alloc_ptr = RISCV_BUS_MMIO_ALLOC_PTR;
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qpci->bus.mmio_limit = RISCV_BUS_MMIO_LIMIT;
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qpci->ecam_alloc_ptr = RISCV_ECAM_ALLOC_PTR;
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}
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static void *qos_create_machine_riscv_virt(QTestState *qts)
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{
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QVirtMachine *machine = g_new0(QVirtMachine, 1);
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alloc_init(&machine->alloc, 0,
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RISCV_VIRT_RAM_ADDR,
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RISCV_VIRT_RAM_ADDR + RISCV_VIRT_RAM_SIZE,
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RISCV_PAGE_SIZE);
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qvirtio_mmio_init_device(&machine->virtio_mmio, qts, VIRTIO_MMIO_BASE_ADDR,
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VIRTIO_MMIO_SIZE);
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qos_create_generic_pcihost(&machine->bridge, qts, &machine->alloc);
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riscv_config_qpci_bus(&machine->bridge.pci);
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machine->obj.get_device = virt_get_device;
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machine->obj.get_driver = virt_get_driver;
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machine->obj.destructor = virt_destructor;
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return machine;
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}
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static void virt_machine_register_nodes(void)
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{
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qos_node_create_machine_args("riscv32/virt", qos_create_machine_riscv_virt,
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"aclint=on,aia=aplic-imsic");
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qos_node_contains("riscv32/virt", "virtio-mmio", NULL);
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qos_node_contains("riscv32/virt", "generic-pcihost", NULL);
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qos_node_create_machine_args("riscv64/virt", qos_create_machine_riscv_virt,
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"aclint=on,aia=aplic-imsic");
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qos_node_contains("riscv64/virt", "virtio-mmio", NULL);
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qos_node_contains("riscv64/virt", "generic-pcihost", NULL);
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}
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libqos_init(virt_machine_register_nodes);
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