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b3d4ef8348
qemu/hw/loongarch/virt.c
Jason A. Donenfeld b3d4ef8348 hw/loongarch: virt: support up to 4 serial ports 
In order to support additional channels of communication using
`-serial`, add several serial ports, up to the standard 4 generally
supported by the 8250 driver.

Fixed: https://lore.kernel.org/all/20240907143439.2792924-1-Jason@zx2c4.com/

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Tested-by: Bibo Mao <maobibo@loongson.cn>
[gaosong: ACPI uart need't reverse order]
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240907143439.2792924-1-Jason@zx2c4.com>
2024-09-12 20:57:50 +08:00

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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* QEMU loongson 3a5000 develop board emulation
*
* Copyright (c) 2021 Loongson Technology Corporation Limited
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "qemu/datadir.h"
#include "qapi/error.h"
#include "hw/boards.h"
#include "hw/char/serial.h"
#include "sysemu/kvm.h"
#include "sysemu/tcg.h"
#include "sysemu/sysemu.h"
#include "sysemu/qtest.h"
#include "sysemu/runstate.h"
#include "sysemu/reset.h"
#include "sysemu/rtc.h"
#include "hw/loongarch/virt.h"
#include "exec/address-spaces.h"
#include "hw/irq.h"
#include "net/net.h"
#include "hw/loader.h"
#include "elf.h"
#include "hw/intc/loongarch_ipi.h"
#include "hw/intc/loongarch_extioi.h"
#include "hw/intc/loongarch_pch_pic.h"
#include "hw/intc/loongarch_pch_msi.h"
#include "hw/pci-host/ls7a.h"
#include "hw/pci-host/gpex.h"
#include "hw/misc/unimp.h"
#include "hw/loongarch/fw_cfg.h"
#include "target/loongarch/cpu.h"
#include "hw/firmware/smbios.h"
#include "hw/acpi/aml-build.h"
#include "qapi/qapi-visit-common.h"
#include "hw/acpi/generic_event_device.h"
#include "hw/mem/nvdimm.h"
#include "sysemu/device_tree.h"
#include <libfdt.h>
#include "hw/core/sysbus-fdt.h"
#include "hw/platform-bus.h"
#include "hw/display/ramfb.h"
#include "hw/mem/pc-dimm.h"
#include "sysemu/tpm.h"
#include "sysemu/block-backend.h"
#include "hw/block/flash.h"
#include "hw/virtio/virtio-iommu.h"
#include "qemu/error-report.h"
static bool virt_is_veiointc_enabled(LoongArchVirtMachineState *lvms)
{
if (lvms->veiointc == ON_OFF_AUTO_OFF) {
return false;
}
return true;
}
static void virt_get_veiointc(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj);
OnOffAuto veiointc = lvms->veiointc;
visit_type_OnOffAuto(v, name, &veiointc, errp);
}
static void virt_set_veiointc(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj);
visit_type_OnOffAuto(v, name, &lvms->veiointc, errp);
}
static PFlashCFI01 *virt_flash_create1(LoongArchVirtMachineState *lvms,
const char *name,
const char *alias_prop_name)
{
DeviceState *dev = qdev_new(TYPE_PFLASH_CFI01);
qdev_prop_set_uint64(dev, "sector-length", VIRT_FLASH_SECTOR_SIZE);
qdev_prop_set_uint8(dev, "width", 4);
qdev_prop_set_uint8(dev, "device-width", 2);
qdev_prop_set_bit(dev, "big-endian", false);
qdev_prop_set_uint16(dev, "id0", 0x89);
qdev_prop_set_uint16(dev, "id1", 0x18);
qdev_prop_set_uint16(dev, "id2", 0x00);
qdev_prop_set_uint16(dev, "id3", 0x00);
qdev_prop_set_string(dev, "name", name);
object_property_add_child(OBJECT(lvms), name, OBJECT(dev));
object_property_add_alias(OBJECT(lvms), alias_prop_name,
OBJECT(dev), "drive");
return PFLASH_CFI01(dev);
}
static void virt_flash_create(LoongArchVirtMachineState *lvms)
{
lvms->flash[0] = virt_flash_create1(lvms, "virt.flash0", "pflash0");
lvms->flash[1] = virt_flash_create1(lvms, "virt.flash1", "pflash1");
}
static void virt_flash_map1(PFlashCFI01 *flash,
hwaddr base, hwaddr size,
MemoryRegion *sysmem)
{
DeviceState *dev = DEVICE(flash);
BlockBackend *blk;
hwaddr real_size = size;
blk = pflash_cfi01_get_blk(flash);
if (blk) {
real_size = blk_getlength(blk);
assert(real_size && real_size <= size);
}
assert(QEMU_IS_ALIGNED(real_size, VIRT_FLASH_SECTOR_SIZE));
assert(real_size / VIRT_FLASH_SECTOR_SIZE <= UINT32_MAX);
qdev_prop_set_uint32(dev, "num-blocks", real_size / VIRT_FLASH_SECTOR_SIZE);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
memory_region_add_subregion(sysmem, base,
sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0));
}
static void virt_flash_map(LoongArchVirtMachineState *lvms,
MemoryRegion *sysmem)
{
PFlashCFI01 *flash0 = lvms->flash[0];
PFlashCFI01 *flash1 = lvms->flash[1];
virt_flash_map1(flash0, VIRT_FLASH0_BASE, VIRT_FLASH0_SIZE, sysmem);
virt_flash_map1(flash1, VIRT_FLASH1_BASE, VIRT_FLASH1_SIZE, sysmem);
}
static void fdt_add_cpuic_node(LoongArchVirtMachineState *lvms,
uint32_t *cpuintc_phandle)
{
MachineState *ms = MACHINE(lvms);
char *nodename;
*cpuintc_phandle = qemu_fdt_alloc_phandle(ms->fdt);
nodename = g_strdup_printf("/cpuic");
qemu_fdt_add_subnode(ms->fdt, nodename);
qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", *cpuintc_phandle);
qemu_fdt_setprop_string(ms->fdt, nodename, "compatible",
"loongson,cpu-interrupt-controller");
qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0);
qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 1);
g_free(nodename);
}
static void fdt_add_eiointc_node(LoongArchVirtMachineState *lvms,
uint32_t *cpuintc_phandle,
uint32_t *eiointc_phandle)
{
MachineState *ms = MACHINE(lvms);
char *nodename;
hwaddr extioi_base = APIC_BASE;
hwaddr extioi_size = EXTIOI_SIZE;
*eiointc_phandle = qemu_fdt_alloc_phandle(ms->fdt);
nodename = g_strdup_printf("/eiointc@%" PRIx64, extioi_base);
qemu_fdt_add_subnode(ms->fdt, nodename);
qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", *eiointc_phandle);
qemu_fdt_setprop_string(ms->fdt, nodename, "compatible",
"loongson,ls2k2000-eiointc");
qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0);
qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 1);
qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent",
*cpuintc_phandle);
qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupts", 3);
qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 0x0,
extioi_base, 0x0, extioi_size);
g_free(nodename);
}
static void fdt_add_pch_pic_node(LoongArchVirtMachineState *lvms,
uint32_t *eiointc_phandle,
uint32_t *pch_pic_phandle)
{
MachineState *ms = MACHINE(lvms);
char *nodename;
hwaddr pch_pic_base = VIRT_PCH_REG_BASE;
hwaddr pch_pic_size = VIRT_PCH_REG_SIZE;
*pch_pic_phandle = qemu_fdt_alloc_phandle(ms->fdt);
nodename = g_strdup_printf("/platic@%" PRIx64, pch_pic_base);
qemu_fdt_add_subnode(ms->fdt, nodename);
qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", *pch_pic_phandle);
qemu_fdt_setprop_string(ms->fdt, nodename, "compatible",
"loongson,pch-pic-1.0");
qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 0,
pch_pic_base, 0, pch_pic_size);
qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0);
qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 2);
qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent",
*eiointc_phandle);
qemu_fdt_setprop_cell(ms->fdt, nodename, "loongson,pic-base-vec", 0);
g_free(nodename);
}
static void fdt_add_pch_msi_node(LoongArchVirtMachineState *lvms,
uint32_t *eiointc_phandle,
uint32_t *pch_msi_phandle)
{
MachineState *ms = MACHINE(lvms);
char *nodename;
hwaddr pch_msi_base = VIRT_PCH_MSI_ADDR_LOW;
hwaddr pch_msi_size = VIRT_PCH_MSI_SIZE;
*pch_msi_phandle = qemu_fdt_alloc_phandle(ms->fdt);
nodename = g_strdup_printf("/msi@%" PRIx64, pch_msi_base);
qemu_fdt_add_subnode(ms->fdt, nodename);
qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", *pch_msi_phandle);
qemu_fdt_setprop_string(ms->fdt, nodename, "compatible",
"loongson,pch-msi-1.0");
qemu_fdt_setprop_cells(ms->fdt, nodename, "reg",
0, pch_msi_base,
0, pch_msi_size);
qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0);
qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent",
*eiointc_phandle);
qemu_fdt_setprop_cell(ms->fdt, nodename, "loongson,msi-base-vec",
VIRT_PCH_PIC_IRQ_NUM);
qemu_fdt_setprop_cell(ms->fdt, nodename, "loongson,msi-num-vecs",
EXTIOI_IRQS - VIRT_PCH_PIC_IRQ_NUM);
g_free(nodename);
}
static void fdt_add_flash_node(LoongArchVirtMachineState *lvms)
{
MachineState *ms = MACHINE(lvms);
char *nodename;
MemoryRegion *flash_mem;
hwaddr flash0_base;
hwaddr flash0_size;
hwaddr flash1_base;
hwaddr flash1_size;
flash_mem = pflash_cfi01_get_memory(lvms->flash[0]);
flash0_base = flash_mem->addr;
flash0_size = memory_region_size(flash_mem);
flash_mem = pflash_cfi01_get_memory(lvms->flash[1]);
flash1_base = flash_mem->addr;
flash1_size = memory_region_size(flash_mem);
nodename = g_strdup_printf("/flash@%" PRIx64, flash0_base);
qemu_fdt_add_subnode(ms->fdt, nodename);
qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash");
qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, flash0_base, 2, flash0_size,
2, flash1_base, 2, flash1_size);
qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4);
g_free(nodename);
}
static void fdt_add_rtc_node(LoongArchVirtMachineState *lvms,
uint32_t *pch_pic_phandle)
{
char *nodename;
hwaddr base = VIRT_RTC_REG_BASE;
hwaddr size = VIRT_RTC_LEN;
MachineState *ms = MACHINE(lvms);
nodename = g_strdup_printf("/rtc@%" PRIx64, base);
qemu_fdt_add_subnode(ms->fdt, nodename);
qemu_fdt_setprop_string(ms->fdt, nodename, "compatible",
"loongson,ls7a-rtc");
qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size);
qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts",
VIRT_RTC_IRQ - VIRT_GSI_BASE , 0x4);
qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent",
*pch_pic_phandle);
g_free(nodename);
}
static void fdt_add_uart_node(LoongArchVirtMachineState *lvms,
uint32_t *pch_pic_phandle, hwaddr base,
int irq, bool chosen)
{
char *nodename;
hwaddr size = VIRT_UART_SIZE;
MachineState *ms = MACHINE(lvms);
nodename = g_strdup_printf("/serial@%" PRIx64, base);
qemu_fdt_add_subnode(ms->fdt, nodename);
qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "ns16550a");
qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 0x0, base, 0x0, size);
qemu_fdt_setprop_cell(ms->fdt, nodename, "clock-frequency", 100000000);
if (chosen)
qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", nodename);
qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", irq, 0x4);
qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent",
*pch_pic_phandle);
g_free(nodename);
}
static void create_fdt(LoongArchVirtMachineState *lvms)
{
MachineState *ms = MACHINE(lvms);
ms->fdt = create_device_tree(&lvms->fdt_size);
if (!ms->fdt) {
error_report("create_device_tree() failed");
exit(1);
}
/* Header */
qemu_fdt_setprop_string(ms->fdt, "/", "compatible",
"linux,dummy-loongson3");
qemu_fdt_setprop_cell(ms->fdt, "/", "#address-cells", 0x2);
qemu_fdt_setprop_cell(ms->fdt, "/", "#size-cells", 0x2);
qemu_fdt_add_subnode(ms->fdt, "/chosen");
}
static void fdt_add_cpu_nodes(const LoongArchVirtMachineState *lvms)
{
int num;
const MachineState *ms = MACHINE(lvms);
int smp_cpus = ms->smp.cpus;
qemu_fdt_add_subnode(ms->fdt, "/cpus");
qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#address-cells", 0x1);
qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#size-cells", 0x0);
/* cpu nodes */
for (num = smp_cpus - 1; num >= 0; num--) {
char *nodename = g_strdup_printf("/cpus/cpu@%d", num);
LoongArchCPU *cpu = LOONGARCH_CPU(qemu_get_cpu(num));
CPUState *cs = CPU(cpu);
qemu_fdt_add_subnode(ms->fdt, nodename);
qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "cpu");
qemu_fdt_setprop_string(ms->fdt, nodename, "compatible",
cpu->dtb_compatible);
if (ms->possible_cpus->cpus[cs->cpu_index].props.has_node_id) {
qemu_fdt_setprop_cell(ms->fdt, nodename, "numa-node-id",
ms->possible_cpus->cpus[cs->cpu_index].props.node_id);
}
qemu_fdt_setprop_cell(ms->fdt, nodename, "reg", num);
qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle",
qemu_fdt_alloc_phandle(ms->fdt));
g_free(nodename);
}
/*cpu map */
qemu_fdt_add_subnode(ms->fdt, "/cpus/cpu-map");
for (num = smp_cpus - 1; num >= 0; num--) {
char *cpu_path = g_strdup_printf("/cpus/cpu@%d", num);
char *map_path;
if (ms->smp.threads > 1) {
map_path = g_strdup_printf(
"/cpus/cpu-map/socket%d/core%d/thread%d",
num / (ms->smp.cores * ms->smp.threads),
(num / ms->smp.threads) % ms->smp.cores,
num % ms->smp.threads);
} else {
map_path = g_strdup_printf(
"/cpus/cpu-map/socket%d/core%d",
num / ms->smp.cores,
num % ms->smp.cores);
}
qemu_fdt_add_path(ms->fdt, map_path);
qemu_fdt_setprop_phandle(ms->fdt, map_path, "cpu", cpu_path);
g_free(map_path);
g_free(cpu_path);
}
}
static void fdt_add_fw_cfg_node(const LoongArchVirtMachineState *lvms)
{
char *nodename;
hwaddr base = VIRT_FWCFG_BASE;
const MachineState *ms = MACHINE(lvms);
nodename = g_strdup_printf("/fw_cfg@%" PRIx64, base);
qemu_fdt_add_subnode(ms->fdt, nodename);
qemu_fdt_setprop_string(ms->fdt, nodename,
"compatible", "qemu,fw-cfg-mmio");
qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, base, 2, 0x18);
qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0);
g_free(nodename);
}
static void fdt_add_pcie_irq_map_node(const LoongArchVirtMachineState *lvms,
char *nodename,
uint32_t *pch_pic_phandle)
{
int pin, dev;
uint32_t irq_map_stride = 0;
uint32_t full_irq_map[GPEX_NUM_IRQS *GPEX_NUM_IRQS * 10] = {};
uint32_t *irq_map = full_irq_map;
const MachineState *ms = MACHINE(lvms);
/* This code creates a standard swizzle of interrupts such that
* each device's first interrupt is based on it's PCI_SLOT number.
* (See pci_swizzle_map_irq_fn())
*
* We only need one entry per interrupt in the table (not one per
* possible slot) seeing the interrupt-map-mask will allow the table
* to wrap to any number of devices.
*/
for (dev = 0; dev < GPEX_NUM_IRQS; dev++) {
int devfn = dev * 0x8;
for (pin = 0; pin < GPEX_NUM_IRQS; pin++) {
int irq_nr = 16 + ((pin + PCI_SLOT(devfn)) % GPEX_NUM_IRQS);
int i = 0;
/* Fill PCI address cells */
irq_map[i] = cpu_to_be32(devfn << 8);
i += 3;
/* Fill PCI Interrupt cells */
irq_map[i] = cpu_to_be32(pin + 1);
i += 1;
/* Fill interrupt controller phandle and cells */
irq_map[i++] = cpu_to_be32(*pch_pic_phandle);
irq_map[i++] = cpu_to_be32(irq_nr);
if (!irq_map_stride) {
irq_map_stride = i;
}
irq_map += irq_map_stride;
}
}
qemu_fdt_setprop(ms->fdt, nodename, "interrupt-map", full_irq_map,
GPEX_NUM_IRQS * GPEX_NUM_IRQS *
irq_map_stride * sizeof(uint32_t));
qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupt-map-mask",
0x1800, 0, 0, 0x7);
}
static void fdt_add_pcie_node(const LoongArchVirtMachineState *lvms,
uint32_t *pch_pic_phandle,
uint32_t *pch_msi_phandle)
{
char *nodename;
hwaddr base_mmio = VIRT_PCI_MEM_BASE;
hwaddr size_mmio = VIRT_PCI_MEM_SIZE;
hwaddr base_pio = VIRT_PCI_IO_BASE;
hwaddr size_pio = VIRT_PCI_IO_SIZE;
hwaddr base_pcie = VIRT_PCI_CFG_BASE;
hwaddr size_pcie = VIRT_PCI_CFG_SIZE;
hwaddr base = base_pcie;
const MachineState *ms = MACHINE(lvms);
nodename = g_strdup_printf("/pcie@%" PRIx64, base);
qemu_fdt_add_subnode(ms->fdt, nodename);
qemu_fdt_setprop_string(ms->fdt, nodename,
"compatible", "pci-host-ecam-generic");
qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "pci");
qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 3);
qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 2);
qemu_fdt_setprop_cell(ms->fdt, nodename, "linux,pci-domain", 0);
qemu_fdt_setprop_cells(ms->fdt, nodename, "bus-range", 0,
PCIE_MMCFG_BUS(VIRT_PCI_CFG_SIZE - 1));
qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0);
qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, base_pcie, 2, size_pcie);
qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "ranges",
1, FDT_PCI_RANGE_IOPORT, 2, VIRT_PCI_IO_OFFSET,
2, base_pio, 2, size_pio,
1, FDT_PCI_RANGE_MMIO, 2, base_mmio,
2, base_mmio, 2, size_mmio);
qemu_fdt_setprop_cells(ms->fdt, nodename, "msi-map",
0, *pch_msi_phandle, 0, 0x10000);
fdt_add_pcie_irq_map_node(lvms, nodename, pch_pic_phandle);
g_free(nodename);
}
static void fdt_add_memory_node(MachineState *ms,
uint64_t base, uint64_t size, int node_id)
{
char *nodename = g_strdup_printf("/memory@%" PRIx64, base);
qemu_fdt_add_subnode(ms->fdt, nodename);
qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", base >> 32, base,
size >> 32, size);
qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "memory");
if (ms->numa_state && ms->numa_state->num_nodes) {
qemu_fdt_setprop_cell(ms->fdt, nodename, "numa-node-id", node_id);
}
g_free(nodename);
}
static void fdt_add_memory_nodes(MachineState *ms)
{
hwaddr base, size, ram_size, gap;
int i, nb_numa_nodes, nodes;
NodeInfo *numa_info;
ram_size = ms->ram_size;
base = VIRT_LOWMEM_BASE;
gap = VIRT_LOWMEM_SIZE;
nodes = nb_numa_nodes = ms->numa_state->num_nodes;
numa_info = ms->numa_state->nodes;
if (!nodes) {
nodes = 1;
}
for (i = 0; i < nodes; i++) {
if (nb_numa_nodes) {
size = numa_info[i].node_mem;
} else {
size = ram_size;
}
/*
* memory for the node splited into two part
* lowram: [base, +gap)
* highram: [VIRT_HIGHMEM_BASE, +(len - gap))
*/
if (size >= gap) {
fdt_add_memory_node(ms, base, gap, i);
size -= gap;
base = VIRT_HIGHMEM_BASE;
gap = ram_size - VIRT_LOWMEM_SIZE;
}
if (size) {
fdt_add_memory_node(ms, base, size, i);
base += size;
gap -= size;
}
}
}
static void virt_build_smbios(LoongArchVirtMachineState *lvms)
{
MachineState *ms = MACHINE(lvms);
MachineClass *mc = MACHINE_GET_CLASS(lvms);
uint8_t *smbios_tables, *smbios_anchor;
size_t smbios_tables_len, smbios_anchor_len;
const char *product = "QEMU Virtual Machine";
if (!lvms->fw_cfg) {
return;
}
smbios_set_defaults("QEMU", product, mc->name);
smbios_get_tables(ms, SMBIOS_ENTRY_POINT_TYPE_64,
NULL, 0,
&smbios_tables, &smbios_tables_len,
&smbios_anchor, &smbios_anchor_len, &error_fatal);
if (smbios_anchor) {
fw_cfg_add_file(lvms->fw_cfg, "etc/smbios/smbios-tables",
smbios_tables, smbios_tables_len);
fw_cfg_add_file(lvms->fw_cfg, "etc/smbios/smbios-anchor",
smbios_anchor, smbios_anchor_len);
}
}
static void virt_done(Notifier *notifier, void *data)
{
LoongArchVirtMachineState *lvms = container_of(notifier,
LoongArchVirtMachineState, machine_done);
virt_build_smbios(lvms);
loongarch_acpi_setup(lvms);
}
static void virt_powerdown_req(Notifier *notifier, void *opaque)
{
LoongArchVirtMachineState *s;
s = container_of(notifier, LoongArchVirtMachineState, powerdown_notifier);
acpi_send_event(s->acpi_ged, ACPI_POWER_DOWN_STATUS);
}
static void memmap_add_entry(uint64_t address, uint64_t length, uint32_t type)
{
/* Ensure there are no duplicate entries. */
for (unsigned i = 0; i < memmap_entries; i++) {
assert(memmap_table[i].address != address);
}
memmap_table = g_renew(struct memmap_entry, memmap_table,
memmap_entries + 1);
memmap_table[memmap_entries].address = cpu_to_le64(address);
memmap_table[memmap_entries].length = cpu_to_le64(length);
memmap_table[memmap_entries].type = cpu_to_le32(type);
memmap_table[memmap_entries].reserved = 0;
memmap_entries++;
}
static DeviceState *create_acpi_ged(DeviceState *pch_pic,
LoongArchVirtMachineState *lvms)
{
DeviceState *dev;
MachineState *ms = MACHINE(lvms);
uint32_t event = ACPI_GED_PWR_DOWN_EVT;
if (ms->ram_slots) {
event |= ACPI_GED_MEM_HOTPLUG_EVT;
}
dev = qdev_new(TYPE_ACPI_GED);
qdev_prop_set_uint32(dev, "ged-event", event);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
/* ged event */
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, VIRT_GED_EVT_ADDR);
/* memory hotplug */
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, VIRT_GED_MEM_ADDR);
/* ged regs used for reset and power down */
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, VIRT_GED_REG_ADDR);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
qdev_get_gpio_in(pch_pic, VIRT_SCI_IRQ - VIRT_GSI_BASE));
return dev;
}
static DeviceState *create_platform_bus(DeviceState *pch_pic)
{
DeviceState *dev;
SysBusDevice *sysbus;
int i, irq;
MemoryRegion *sysmem = get_system_memory();
dev = qdev_new(TYPE_PLATFORM_BUS_DEVICE);
dev->id = g_strdup(TYPE_PLATFORM_BUS_DEVICE);
qdev_prop_set_uint32(dev, "num_irqs", VIRT_PLATFORM_BUS_NUM_IRQS);
qdev_prop_set_uint32(dev, "mmio_size", VIRT_PLATFORM_BUS_SIZE);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sysbus = SYS_BUS_DEVICE(dev);
for (i = 0; i < VIRT_PLATFORM_BUS_NUM_IRQS; i++) {
irq = VIRT_PLATFORM_BUS_IRQ - VIRT_GSI_BASE + i;
sysbus_connect_irq(sysbus, i, qdev_get_gpio_in(pch_pic, irq));
}
memory_region_add_subregion(sysmem,
VIRT_PLATFORM_BUS_BASEADDRESS,
sysbus_mmio_get_region(sysbus, 0));
return dev;
}
static void virt_devices_init(DeviceState *pch_pic,
LoongArchVirtMachineState *lvms,
uint32_t *pch_pic_phandle,
uint32_t *pch_msi_phandle)
{
MachineClass *mc = MACHINE_GET_CLASS(lvms);
DeviceState *gpex_dev;
SysBusDevice *d;
PCIBus *pci_bus;
MemoryRegion *ecam_alias, *ecam_reg, *pio_alias, *pio_reg;
MemoryRegion *mmio_alias, *mmio_reg;
int i;
gpex_dev = qdev_new(TYPE_GPEX_HOST);
d = SYS_BUS_DEVICE(gpex_dev);
sysbus_realize_and_unref(d, &error_fatal);
pci_bus = PCI_HOST_BRIDGE(gpex_dev)->bus;
lvms->pci_bus = pci_bus;
/* Map only part size_ecam bytes of ECAM space */
ecam_alias = g_new0(MemoryRegion, 1);
ecam_reg = sysbus_mmio_get_region(d, 0);
memory_region_init_alias(ecam_alias, OBJECT(gpex_dev), "pcie-ecam",
ecam_reg, 0, VIRT_PCI_CFG_SIZE);
memory_region_add_subregion(get_system_memory(), VIRT_PCI_CFG_BASE,
ecam_alias);
/* Map PCI mem space */
mmio_alias = g_new0(MemoryRegion, 1);
mmio_reg = sysbus_mmio_get_region(d, 1);
memory_region_init_alias(mmio_alias, OBJECT(gpex_dev), "pcie-mmio",
mmio_reg, VIRT_PCI_MEM_BASE, VIRT_PCI_MEM_SIZE);
memory_region_add_subregion(get_system_memory(), VIRT_PCI_MEM_BASE,
mmio_alias);
/* Map PCI IO port space. */
pio_alias = g_new0(MemoryRegion, 1);
pio_reg = sysbus_mmio_get_region(d, 2);
memory_region_init_alias(pio_alias, OBJECT(gpex_dev), "pcie-io", pio_reg,
VIRT_PCI_IO_OFFSET, VIRT_PCI_IO_SIZE);
memory_region_add_subregion(get_system_memory(), VIRT_PCI_IO_BASE,
pio_alias);
for (i = 0; i < GPEX_NUM_IRQS; i++) {
sysbus_connect_irq(d, i,
qdev_get_gpio_in(pch_pic, 16 + i));
gpex_set_irq_num(GPEX_HOST(gpex_dev), i, 16 + i);
}
/* Add pcie node */
fdt_add_pcie_node(lvms, pch_pic_phandle, pch_msi_phandle);
/*
* Create uart fdt node in reverse order so that they appear
* in the finished device tree lowest address first
*/
for (i = VIRT_UART_COUNT; i --> 0;) {
hwaddr base = VIRT_UART_BASE + i * VIRT_UART_SIZE;
int irq = VIRT_UART_IRQ + i - VIRT_GSI_BASE;
serial_mm_init(get_system_memory(), base, 0,
qdev_get_gpio_in(pch_pic, irq),
115200, serial_hd(i), DEVICE_LITTLE_ENDIAN);
fdt_add_uart_node(lvms, pch_pic_phandle, base, irq, i == 0);
}
/* Network init */
pci_init_nic_devices(pci_bus, mc->default_nic);
/*
* There are some invalid guest memory access.
* Create some unimplemented devices to emulate this.
*/
create_unimplemented_device("pci-dma-cfg", 0x1001041c, 0x4);
sysbus_create_simple("ls7a_rtc", VIRT_RTC_REG_BASE,
qdev_get_gpio_in(pch_pic,
VIRT_RTC_IRQ - VIRT_GSI_BASE));
fdt_add_rtc_node(lvms, pch_pic_phandle);
/* acpi ged */
lvms->acpi_ged = create_acpi_ged(pch_pic, lvms);
/* platform bus */
lvms->platform_bus_dev = create_platform_bus(pch_pic);
}
static void virt_irq_init(LoongArchVirtMachineState *lvms)
{
MachineState *ms = MACHINE(lvms);
DeviceState *pch_pic, *pch_msi, *cpudev;
DeviceState *ipi, *extioi;
SysBusDevice *d;
LoongArchCPU *lacpu;
CPULoongArchState *env;
CPUState *cpu_state;
int cpu, pin, i, start, num;
uint32_t cpuintc_phandle, eiointc_phandle, pch_pic_phandle, pch_msi_phandle;
/*
* Extended IRQ model.
* |
* +-----------+ +-------------|--------+ +-----------+
* | IPI/Timer | --> | CPUINTC(0-3)|(4-255) | <-- | IPI/Timer |
* +-----------+ +-------------|--------+ +-----------+
* ^ |
* |
* +---------+
* | EIOINTC |
* +---------+
* ^ ^
* | |
* +---------+ +---------+
* | PCH-PIC | | PCH-MSI |
* +---------+ +---------+
* ^ ^ ^
* | | |
* +--------+ +---------+ +---------+
* | UARTs | | Devices | | Devices |
* +--------+ +---------+ +---------+
*
* Virt extended IRQ model.
*
* +-----+ +---------------+ +-------+
* | IPI |--> | CPUINTC(0-255)| <-- | Timer |
* +-----+ +---------------+ +-------+
* ^
* |
* +-----------+
* | V-EIOINTC |
* +-----------+
* ^ ^
* | |
* +---------+ +---------+
* | PCH-PIC | | PCH-MSI |
* +---------+ +---------+
* ^ ^ ^
* | | |
* +--------+ +---------+ +---------+
* | UARTs | | Devices | | Devices |
* +--------+ +---------+ +---------+
*/
/* Create IPI device */
ipi = qdev_new(TYPE_LOONGARCH_IPI);
qdev_prop_set_uint32(ipi, "num-cpu", ms->smp.cpus);
sysbus_realize_and_unref(SYS_BUS_DEVICE(ipi), &error_fatal);
/* IPI iocsr memory region */
memory_region_add_subregion(&lvms->system_iocsr, SMP_IPI_MAILBOX,
sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi), 0));
memory_region_add_subregion(&lvms->system_iocsr, MAIL_SEND_ADDR,
sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi), 1));
/* Add cpu interrupt-controller */
fdt_add_cpuic_node(lvms, &cpuintc_phandle);
for (cpu = 0; cpu < ms->smp.cpus; cpu++) {
cpu_state = qemu_get_cpu(cpu);
cpudev = DEVICE(cpu_state);
lacpu = LOONGARCH_CPU(cpu_state);
env = &(lacpu->env);
env->address_space_iocsr = &lvms->as_iocsr;
/* connect ipi irq to cpu irq */
qdev_connect_gpio_out(ipi, cpu, qdev_get_gpio_in(cpudev, IRQ_IPI));
env->ipistate = ipi;
}
/* Create EXTIOI device */
extioi = qdev_new(TYPE_LOONGARCH_EXTIOI);
qdev_prop_set_uint32(extioi, "num-cpu", ms->smp.cpus);
if (virt_is_veiointc_enabled(lvms)) {
qdev_prop_set_bit(extioi, "has-virtualization-extension", true);
}
sysbus_realize_and_unref(SYS_BUS_DEVICE(extioi), &error_fatal);
memory_region_add_subregion(&lvms->system_iocsr, APIC_BASE,
sysbus_mmio_get_region(SYS_BUS_DEVICE(extioi), 0));
if (virt_is_veiointc_enabled(lvms)) {
memory_region_add_subregion(&lvms->system_iocsr, EXTIOI_VIRT_BASE,
sysbus_mmio_get_region(SYS_BUS_DEVICE(extioi), 1));
}
/*
* connect ext irq to the cpu irq
* cpu_pin[9:2] <= intc_pin[7:0]
*/
for (cpu = 0; cpu < ms->smp.cpus; cpu++) {
cpudev = DEVICE(qemu_get_cpu(cpu));
for (pin = 0; pin < LS3A_INTC_IP; pin++) {
qdev_connect_gpio_out(extioi, (cpu * 8 + pin),
qdev_get_gpio_in(cpudev, pin + 2));
}
}
/* Add Extend I/O Interrupt Controller node */
fdt_add_eiointc_node(lvms, &cpuintc_phandle, &eiointc_phandle);
pch_pic = qdev_new(TYPE_LOONGARCH_PCH_PIC);
num = VIRT_PCH_PIC_IRQ_NUM;
qdev_prop_set_uint32(pch_pic, "pch_pic_irq_num", num);
d = SYS_BUS_DEVICE(pch_pic);
sysbus_realize_and_unref(d, &error_fatal);
memory_region_add_subregion(get_system_memory(), VIRT_IOAPIC_REG_BASE,
sysbus_mmio_get_region(d, 0));
memory_region_add_subregion(get_system_memory(),
VIRT_IOAPIC_REG_BASE + PCH_PIC_ROUTE_ENTRY_OFFSET,
sysbus_mmio_get_region(d, 1));
memory_region_add_subregion(get_system_memory(),
VIRT_IOAPIC_REG_BASE + PCH_PIC_INT_STATUS_LO,
sysbus_mmio_get_region(d, 2));
/* Connect pch_pic irqs to extioi */
for (i = 0; i < num; i++) {
qdev_connect_gpio_out(DEVICE(d), i, qdev_get_gpio_in(extioi, i));
}
/* Add PCH PIC node */
fdt_add_pch_pic_node(lvms, &eiointc_phandle, &pch_pic_phandle);
pch_msi = qdev_new(TYPE_LOONGARCH_PCH_MSI);
start = num;
num = EXTIOI_IRQS - start;
qdev_prop_set_uint32(pch_msi, "msi_irq_base", start);
qdev_prop_set_uint32(pch_msi, "msi_irq_num", num);
d = SYS_BUS_DEVICE(pch_msi);
sysbus_realize_and_unref(d, &error_fatal);
sysbus_mmio_map(d, 0, VIRT_PCH_MSI_ADDR_LOW);
for (i = 0; i < num; i++) {
/* Connect pch_msi irqs to extioi */
qdev_connect_gpio_out(DEVICE(d), i,
qdev_get_gpio_in(extioi, i + start));
}
/* Add PCH MSI node */
fdt_add_pch_msi_node(lvms, &eiointc_phandle, &pch_msi_phandle);
virt_devices_init(pch_pic, lvms, &pch_pic_phandle, &pch_msi_phandle);
}
static void virt_firmware_init(LoongArchVirtMachineState *lvms)
{
char *filename = MACHINE(lvms)->firmware;
char *bios_name = NULL;
int bios_size, i;
BlockBackend *pflash_blk0;
MemoryRegion *mr;
lvms->bios_loaded = false;
/* Map legacy -drive if=pflash to machine properties */
for (i = 0; i < ARRAY_SIZE(lvms->flash); i++) {
pflash_cfi01_legacy_drive(lvms->flash[i],
drive_get(IF_PFLASH, 0, i));
}
virt_flash_map(lvms, get_system_memory());
pflash_blk0 = pflash_cfi01_get_blk(lvms->flash[0]);
if (pflash_blk0) {
if (filename) {
error_report("cannot use both '-bios' and '-drive if=pflash'"
"options at once");
exit(1);
}
lvms->bios_loaded = true;
return;
}
if (filename) {
bios_name = qemu_find_file(QEMU_FILE_TYPE_BIOS, filename);
if (!bios_name) {
error_report("Could not find ROM image '%s'", filename);
exit(1);
}
mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(lvms->flash[0]), 0);
bios_size = load_image_mr(bios_name, mr);
if (bios_size < 0) {
error_report("Could not load ROM image '%s'", bios_name);
exit(1);
}
g_free(bios_name);
lvms->bios_loaded = true;
}
}
static MemTxResult virt_iocsr_misc_write(void *opaque, hwaddr addr,
uint64_t val, unsigned size,
MemTxAttrs attrs)
{
LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(opaque);
uint64_t features;
switch (addr) {
case MISC_FUNC_REG:
if (!virt_is_veiointc_enabled(lvms)) {
return MEMTX_OK;
}
features = address_space_ldl(&lvms->as_iocsr,
EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG,
attrs, NULL);
if (val & BIT_ULL(IOCSRM_EXTIOI_EN)) {
features |= BIT(EXTIOI_ENABLE);
}
if (val & BIT_ULL(IOCSRM_EXTIOI_INT_ENCODE)) {
features |= BIT(EXTIOI_ENABLE_INT_ENCODE);
}
address_space_stl(&lvms->as_iocsr,
EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG,
features, attrs, NULL);
break;
default:
g_assert_not_reached();
}
return MEMTX_OK;
}
static MemTxResult virt_iocsr_misc_read(void *opaque, hwaddr addr,
uint64_t *data,
unsigned size, MemTxAttrs attrs)
{
LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(opaque);
uint64_t ret = 0;
int features;
switch (addr) {
case VERSION_REG:
ret = 0x11ULL;
break;
case FEATURE_REG:
ret = BIT(IOCSRF_MSI) | BIT(IOCSRF_EXTIOI) | BIT(IOCSRF_CSRIPI);
if (kvm_enabled()) {
ret |= BIT(IOCSRF_VM);
}
break;
case VENDOR_REG:
ret = 0x6e6f73676e6f6f4cULL; /* "Loongson" */
break;
case CPUNAME_REG:
ret = 0x303030354133ULL; /* "3A5000" */
break;
case MISC_FUNC_REG:
if (!virt_is_veiointc_enabled(lvms)) {
ret |= BIT_ULL(IOCSRM_EXTIOI_EN);
break;
}
features = address_space_ldl(&lvms->as_iocsr,
EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG,
attrs, NULL);
if (features & BIT(EXTIOI_ENABLE)) {
ret |= BIT_ULL(IOCSRM_EXTIOI_EN);
}
if (features & BIT(EXTIOI_ENABLE_INT_ENCODE)) {
ret |= BIT_ULL(IOCSRM_EXTIOI_INT_ENCODE);
}
break;
default:
g_assert_not_reached();
}
*data = ret;
return MEMTX_OK;
}
static const MemoryRegionOps virt_iocsr_misc_ops = {
.read_with_attrs = virt_iocsr_misc_read,
.write_with_attrs = virt_iocsr_misc_write,
.endianness = DEVICE_LITTLE_ENDIAN,
.valid = {
.min_access_size = 4,
.max_access_size = 8,
},
.impl = {
.min_access_size = 8,
.max_access_size = 8,
},
};
static void fw_cfg_add_memory(MachineState *ms)
{
hwaddr base, size, ram_size, gap;
int nb_numa_nodes, nodes;
NodeInfo *numa_info;
ram_size = ms->ram_size;
base = VIRT_LOWMEM_BASE;
gap = VIRT_LOWMEM_SIZE;
nodes = nb_numa_nodes = ms->numa_state->num_nodes;
numa_info = ms->numa_state->nodes;
if (!nodes) {
nodes = 1;
}
/* add fw_cfg memory map of node0 */
if (nb_numa_nodes) {
size = numa_info[0].node_mem;
} else {
size = ram_size;
}
if (size >= gap) {
memmap_add_entry(base, gap, 1);
size -= gap;
base = VIRT_HIGHMEM_BASE;
}
if (size) {
memmap_add_entry(base, size, 1);
base += size;
}
if (nodes < 2) {
return;
}
/* add fw_cfg memory map of other nodes */
if (numa_info[0].node_mem < gap && ram_size > gap) {
/*
* memory map for the maining nodes splited into two part
* lowram: [base, +(gap - numa_info[0].node_mem))
* highram: [VIRT_HIGHMEM_BASE, +(ram_size - gap))
*/
memmap_add_entry(base, gap - numa_info[0].node_mem, 1);
size = ram_size - gap;
base = VIRT_HIGHMEM_BASE;
} else {
size = ram_size - numa_info[0].node_mem;
}
if (size)
memmap_add_entry(base, size, 1);
}
static void virt_init(MachineState *machine)
{
LoongArchCPU *lacpu;
const char *cpu_model = machine->cpu_type;
MemoryRegion *address_space_mem = get_system_memory();
LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(machine);
int i;
hwaddr base, size, ram_size = machine->ram_size;
const CPUArchIdList *possible_cpus;
MachineClass *mc = MACHINE_GET_CLASS(machine);
CPUState *cpu;
if (!cpu_model) {
cpu_model = LOONGARCH_CPU_TYPE_NAME("la464");
}
create_fdt(lvms);
/* Create IOCSR space */
memory_region_init_io(&lvms->system_iocsr, OBJECT(machine), NULL,
machine, "iocsr", UINT64_MAX);
address_space_init(&lvms->as_iocsr, &lvms->system_iocsr, "IOCSR");
memory_region_init_io(&lvms->iocsr_mem, OBJECT(machine),
&virt_iocsr_misc_ops,
machine, "iocsr_misc", 0x428);
memory_region_add_subregion(&lvms->system_iocsr, 0, &lvms->iocsr_mem);
/* Init CPUs */
possible_cpus = mc->possible_cpu_arch_ids(machine);
for (i = 0; i < possible_cpus->len; i++) {
cpu = cpu_create(machine->cpu_type);
cpu->cpu_index = i;
machine->possible_cpus->cpus[i].cpu = cpu;
lacpu = LOONGARCH_CPU(cpu);
lacpu->phy_id = machine->possible_cpus->cpus[i].arch_id;
}
fdt_add_cpu_nodes(lvms);
fdt_add_memory_nodes(machine);
fw_cfg_add_memory(machine);
/* Node0 memory */
size = ram_size;
base = VIRT_LOWMEM_BASE;
if (size > VIRT_LOWMEM_SIZE) {
size = VIRT_LOWMEM_SIZE;
}
memory_region_init_alias(&lvms->lowmem, NULL, "loongarch.lowram",
machine->ram, base, size);
memory_region_add_subregion(address_space_mem, base, &lvms->lowmem);
base += size;
if (ram_size - size) {
base = VIRT_HIGHMEM_BASE;
memory_region_init_alias(&lvms->highmem, NULL, "loongarch.highram",
machine->ram, VIRT_LOWMEM_BASE + size, ram_size - size);
memory_region_add_subregion(address_space_mem, base, &lvms->highmem);
base += ram_size - size;
}
/* initialize device memory address space */
if (machine->ram_size < machine->maxram_size) {
ram_addr_t device_mem_size = machine->maxram_size - machine->ram_size;
if (machine->ram_slots > ACPI_MAX_RAM_SLOTS) {
error_report("unsupported amount of memory slots: %"PRIu64,
machine->ram_slots);
exit(EXIT_FAILURE);
}
if (QEMU_ALIGN_UP(machine->maxram_size,
TARGET_PAGE_SIZE) != machine->maxram_size) {
error_report("maximum memory size must by aligned to multiple of "
"%d bytes", TARGET_PAGE_SIZE);
exit(EXIT_FAILURE);
}
machine_memory_devices_init(machine, base, device_mem_size);
}
/* load the BIOS image. */
virt_firmware_init(lvms);
/* fw_cfg init */
lvms->fw_cfg = virt_fw_cfg_init(ram_size, machine);
rom_set_fw(lvms->fw_cfg);
if (lvms->fw_cfg != NULL) {
fw_cfg_add_file(lvms->fw_cfg, "etc/memmap",
memmap_table,
sizeof(struct memmap_entry) * (memmap_entries));
}
fdt_add_fw_cfg_node(lvms);
fdt_add_flash_node(lvms);
/* Initialize the IO interrupt subsystem */
virt_irq_init(lvms);
platform_bus_add_all_fdt_nodes(machine->fdt, "/platic",
VIRT_PLATFORM_BUS_BASEADDRESS,
VIRT_PLATFORM_BUS_SIZE,
VIRT_PLATFORM_BUS_IRQ);
lvms->machine_done.notify = virt_done;
qemu_add_machine_init_done_notifier(&lvms->machine_done);
/* connect powerdown request */
lvms->powerdown_notifier.notify = virt_powerdown_req;
qemu_register_powerdown_notifier(&lvms->powerdown_notifier);
/*
* Since lowmem region starts from 0 and Linux kernel legacy start address
* at 2 MiB, FDT base address is located at 1 MiB to avoid NULL pointer
* access. FDT size limit with 1 MiB.
* Put the FDT into the memory map as a ROM image: this will ensure
* the FDT is copied again upon reset, even if addr points into RAM.
*/
qemu_fdt_dumpdtb(machine->fdt, lvms->fdt_size);
rom_add_blob_fixed_as("fdt", machine->fdt, lvms->fdt_size, FDT_BASE,
&address_space_memory);
qemu_register_reset_nosnapshotload(qemu_fdt_randomize_seeds,
rom_ptr_for_as(&address_space_memory, FDT_BASE, lvms->fdt_size));
lvms->bootinfo.ram_size = ram_size;
loongarch_load_kernel(machine, &lvms->bootinfo);
}
static void virt_get_acpi(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj);
OnOffAuto acpi = lvms->acpi;
visit_type_OnOffAuto(v, name, &acpi, errp);
}
static void virt_set_acpi(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj);
visit_type_OnOffAuto(v, name, &lvms->acpi, errp);
}
static void virt_initfn(Object *obj)
{
LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj);
if (tcg_enabled()) {
lvms->veiointc = ON_OFF_AUTO_OFF;
}
lvms->acpi = ON_OFF_AUTO_AUTO;
lvms->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6);
lvms->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8);
virt_flash_create(lvms);
}
static bool memhp_type_supported(DeviceState *dev)
{
/* we only support pc dimm now */
return object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) &&
!object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM);
}
static void virt_mem_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
Error **errp)
{
pc_dimm_pre_plug(PC_DIMM(dev), MACHINE(hotplug_dev), errp);
}
static void virt_device_pre_plug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
if (memhp_type_supported(dev)) {
virt_mem_pre_plug(hotplug_dev, dev, errp);
}
}
static void virt_mem_unplug_request(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev);
/* the acpi ged is always exist */
hotplug_handler_unplug_request(HOTPLUG_HANDLER(lvms->acpi_ged), dev,
errp);
}
static void virt_device_unplug_request(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
if (memhp_type_supported(dev)) {
virt_mem_unplug_request(hotplug_dev, dev, errp);
}
}
static void virt_mem_unplug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev);
hotplug_handler_unplug(HOTPLUG_HANDLER(lvms->acpi_ged), dev, errp);
pc_dimm_unplug(PC_DIMM(dev), MACHINE(lvms));
qdev_unrealize(dev);
}
static void virt_device_unplug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
if (memhp_type_supported(dev)) {
virt_mem_unplug(hotplug_dev, dev, errp);
}
}
static void virt_mem_plug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev);
pc_dimm_plug(PC_DIMM(dev), MACHINE(lvms));
hotplug_handler_plug(HOTPLUG_HANDLER(lvms->acpi_ged),
dev, &error_abort);
}
static void virt_device_plug_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev);
MachineClass *mc = MACHINE_GET_CLASS(lvms);
PlatformBusDevice *pbus;
if (device_is_dynamic_sysbus(mc, dev)) {
if (lvms->platform_bus_dev) {
pbus = PLATFORM_BUS_DEVICE(lvms->platform_bus_dev);
platform_bus_link_device(pbus, SYS_BUS_DEVICE(dev));
}
} else if (memhp_type_supported(dev)) {
virt_mem_plug(hotplug_dev, dev, errp);
}
}
static HotplugHandler *virt_get_hotplug_handler(MachineState *machine,
DeviceState *dev)
{
MachineClass *mc = MACHINE_GET_CLASS(machine);
if (device_is_dynamic_sysbus(mc, dev) ||
object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI) ||
memhp_type_supported(dev)) {
return HOTPLUG_HANDLER(machine);
}
return NULL;
}
static const CPUArchIdList *virt_possible_cpu_arch_ids(MachineState *ms)
{
int n;
unsigned int max_cpus = ms->smp.max_cpus;
if (ms->possible_cpus) {
assert(ms->possible_cpus->len == max_cpus);
return ms->possible_cpus;
}
ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
sizeof(CPUArchId) * max_cpus);
ms->possible_cpus->len = max_cpus;
for (n = 0; n < ms->possible_cpus->len; n++) {
ms->possible_cpus->cpus[n].type = ms->cpu_type;
ms->possible_cpus->cpus[n].arch_id = n;
ms->possible_cpus->cpus[n].props.has_socket_id = true;
ms->possible_cpus->cpus[n].props.socket_id =
n / (ms->smp.cores * ms->smp.threads);
ms->possible_cpus->cpus[n].props.has_core_id = true;
ms->possible_cpus->cpus[n].props.core_id =
n / ms->smp.threads % ms->smp.cores;
ms->possible_cpus->cpus[n].props.has_thread_id = true;
ms->possible_cpus->cpus[n].props.thread_id = n % ms->smp.threads;
}
return ms->possible_cpus;
}
static CpuInstanceProperties virt_cpu_index_to_props(MachineState *ms,
unsigned cpu_index)
{
MachineClass *mc = MACHINE_GET_CLASS(ms);
const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms);
assert(cpu_index < possible_cpus->len);
return possible_cpus->cpus[cpu_index].props;
}
static int64_t virt_get_default_cpu_node_id(const MachineState *ms, int idx)
{
int64_t socket_id;
if (ms->numa_state->num_nodes) {
socket_id = ms->possible_cpus->cpus[idx].props.socket_id;
return socket_id % ms->numa_state->num_nodes;
} else {
return 0;
}
}
static void virt_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
mc->init = virt_init;
mc->default_cpu_type = LOONGARCH_CPU_TYPE_NAME("la464");
mc->default_ram_id = "loongarch.ram";
mc->max_cpus = LOONGARCH_MAX_CPUS;
mc->is_default = 1;
mc->default_kernel_irqchip_split = false;
mc->block_default_type = IF_VIRTIO;
mc->default_boot_order = "c";
mc->no_cdrom = 1;
mc->possible_cpu_arch_ids = virt_possible_cpu_arch_ids;
mc->cpu_index_to_instance_props = virt_cpu_index_to_props;
mc->get_default_cpu_node_id = virt_get_default_cpu_node_id;
mc->numa_mem_supported = true;
mc->auto_enable_numa_with_memhp = true;
mc->auto_enable_numa_with_memdev = true;
mc->get_hotplug_handler = virt_get_hotplug_handler;
mc->default_nic = "virtio-net-pci";
hc->plug = virt_device_plug_cb;
hc->pre_plug = virt_device_pre_plug;
hc->unplug_request = virt_device_unplug_request;
hc->unplug = virt_device_unplug;
object_class_property_add(oc, "acpi", "OnOffAuto",
virt_get_acpi, virt_set_acpi,
NULL, NULL);
object_class_property_set_description(oc, "acpi",
"Enable ACPI");
object_class_property_add(oc, "v-eiointc", "OnOffAuto",
virt_get_veiointc, virt_set_veiointc,
NULL, NULL);
object_class_property_set_description(oc, "v-eiointc",
"Enable Virt Extend I/O Interrupt Controller.");
machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE);
#ifdef CONFIG_TPM
machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS);
#endif
}
static const TypeInfo virt_machine_types[] = {
{
.name = TYPE_LOONGARCH_VIRT_MACHINE,
.parent = TYPE_MACHINE,
.instance_size = sizeof(LoongArchVirtMachineState),
.class_init = virt_class_init,
.instance_init = virt_initfn,
.interfaces = (InterfaceInfo[]) {
{ TYPE_HOTPLUG_HANDLER },
{ }
},
}
};
DEFINE_TYPES(virt_machine_types)
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