2 * QEMU RISC-V VirtIO machine interface
4 * Copyright (c) 2017 SiFive, Inc.
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.
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
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/>.
19 #ifndef HW_RISCV_VIRT_H
20 #define HW_RISCV_VIRT_H
22 #include "hw/riscv/riscv_hart.h"
23 #include "hw/sysbus.h"
27 SysBusDevice parent_obj
;
30 RISCVHartArrayState soc
;
52 VIRTIO_IRQ
= 1, /* 1 to 8 */
54 PCIE_IRQ
= 0x20, /* 32 to 35 */
55 VIRTIO_NDEV
= 0x35 /* Arbitrary maximum number of interrupts */
58 #define VIRT_PLIC_HART_CONFIG "MS"
59 #define VIRT_PLIC_NUM_SOURCES 127
60 #define VIRT_PLIC_NUM_PRIORITIES 7
61 #define VIRT_PLIC_PRIORITY_BASE 0x04
62 #define VIRT_PLIC_PENDING_BASE 0x1000
63 #define VIRT_PLIC_ENABLE_BASE 0x2000
64 #define VIRT_PLIC_ENABLE_STRIDE 0x80
65 #define VIRT_PLIC_CONTEXT_BASE 0x200000
66 #define VIRT_PLIC_CONTEXT_STRIDE 0x1000
68 #define FDT_PCI_ADDR_CELLS 3
69 #define FDT_PCI_INT_CELLS 1
70 #define FDT_PLIC_ADDR_CELLS 0
71 #define FDT_PLIC_INT_CELLS 1
72 #define FDT_INT_MAP_WIDTH (FDT_PCI_ADDR_CELLS + FDT_PCI_INT_CELLS + 1 + \
73 FDT_PLIC_ADDR_CELLS + FDT_PLIC_INT_CELLS)
75 #if defined(TARGET_RISCV32)
76 #define VIRT_CPU TYPE_RISCV_CPU_BASE32
77 #elif defined(TARGET_RISCV64)
78 #define VIRT_CPU TYPE_RISCV_CPU_BASE64