include/hw/riscv/virt.h

   1 /*
   2  * QEMU RISC-V VirtIO machine interface
   3  *
   4  * Copyright (c) 2017 SiFive, Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms and conditions of the GNU General Public License,
   8  * version 2 or later, as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along with
  16  * this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef HW_RISCV_VIRT_H
  20 #define HW_RISCV_VIRT_H
  21
  22 #include "hw/riscv/riscv_hart.h"
  23 #include "hw/sysbus.h"
  24
  25 #define TYPE_RISCV_VIRT_MACHINE MACHINE_TYPE_NAME("virt")
  26 #define RISCV_VIRT_MACHINE(obj) \
  27     OBJECT_CHECK(RISCVVirtState, (obj), TYPE_RISCV_VIRT_MACHINE)
  28
  29 typedef struct {
  30     /*< private >*/
  31     MachineState parent;
  32
  33     /*< public >*/
  34     RISCVHartArrayState soc;
  35     DeviceState *plic;
  36
  37     void *fdt;
  38     int fdt_size;
  39 } RISCVVirtState;
  40
  41 enum {
  42     VIRT_DEBUG,
  43     VIRT_MROM,
  44     VIRT_TEST,
  45     VIRT_CLINT,
  46     VIRT_PLIC,
  47     VIRT_UART0,
  48     VIRT_VIRTIO,
  49     VIRT_DRAM,
  50     VIRT_PCIE_MMIO,
  51     VIRT_PCIE_PIO,
  52     VIRT_PCIE_ECAM
  53 };
  54
  55 enum {
  56     UART0_IRQ = 10,
  57     VIRTIO_IRQ = 1, /* 1 to 8 */
  58     VIRTIO_COUNT = 8,
  59     PCIE_IRQ = 0x20, /* 32 to 35 */
  60     VIRTIO_NDEV = 0x35 /* Arbitrary maximum number of interrupts */
  61 };
  62
  63 #define VIRT_PLIC_HART_CONFIG "MS"
  64 #define VIRT_PLIC_NUM_SOURCES 127
  65 #define VIRT_PLIC_NUM_PRIORITIES 7
  66 #define VIRT_PLIC_PRIORITY_BASE 0x04
  67 #define VIRT_PLIC_PENDING_BASE 0x1000
  68 #define VIRT_PLIC_ENABLE_BASE 0x2000
  69 #define VIRT_PLIC_ENABLE_STRIDE 0x80
  70 #define VIRT_PLIC_CONTEXT_BASE 0x200000
  71 #define VIRT_PLIC_CONTEXT_STRIDE 0x1000
  72
  73 #define FDT_PCI_ADDR_CELLS    3
  74 #define FDT_PCI_INT_CELLS     1
  75 #define FDT_PLIC_ADDR_CELLS   0
  76 #define FDT_PLIC_INT_CELLS    1
  77 #define FDT_INT_MAP_WIDTH     (FDT_PCI_ADDR_CELLS + FDT_PCI_INT_CELLS + 1 + \
  78                                FDT_PLIC_ADDR_CELLS + FDT_PLIC_INT_CELLS)
  79
  80 #if defined(TARGET_RISCV32)
  81 #define VIRT_CPU TYPE_RISCV_CPU_BASE32
  82 #elif defined(TARGET_RISCV64)
  83 #define VIRT_CPU TYPE_RISCV_CPU_BASE64
  84 #endif
  85
  86 #endif