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/*
* QEMU RISC-V VirtIO machine interface
*
* Copyright (c) 2017 SiFive, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2 or later, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef HW_RISCV_VIRT_H
#define HW_RISCV_VIRT_H
#include "hw/riscv/riscv_hart.h"
#include "hw/sysbus.h"
#include "hw/block/flash.h"
#include "qom/object.h"
#define VIRT_CPUS_MAX_BITS 9
#define VIRT_CPUS_MAX (1 << VIRT_CPUS_MAX_BITS)
#define VIRT_SOCKETS_MAX_BITS 2
#define VIRT_SOCKETS_MAX (1 << VIRT_SOCKETS_MAX_BITS)
#define TYPE_RISCV_VIRT_MACHINE MACHINE_TYPE_NAME("virt")
typedef struct RISCVVirtState RISCVVirtState;
DECLARE_INSTANCE_CHECKER(RISCVVirtState, RISCV_VIRT_MACHINE,
TYPE_RISCV_VIRT_MACHINE)
typedef enum RISCVVirtAIAType {
VIRT_AIA_TYPE_NONE = 0,
VIRT_AIA_TYPE_APLIC,
VIRT_AIA_TYPE_APLIC_IMSIC,
} RISCVVirtAIAType;
struct RISCVVirtState {
/*< private >*/
MachineState parent;
/*< public >*/
RISCVHartArrayState soc[VIRT_SOCKETS_MAX];
DeviceState *irqchip[VIRT_SOCKETS_MAX];
PFlashCFI01 *flash[2];
FWCfgState *fw_cfg;
int fdt_size;
bool have_aclint;
RISCVVirtAIAType aia_type;
int aia_guests;
};
enum {
VIRT_DEBUG,
VIRT_MROM,
VIRT_TEST,
VIRT_RTC,
VIRT_CLINT,
VIRT_ACLINT_SSWI,
VIRT_PLIC,
VIRT_APLIC_M,
VIRT_APLIC_S,
VIRT_UART0,
VIRT_VIRTIO,
VIRT_FW_CFG,
VIRT_IMSIC_M,
VIRT_IMSIC_S,
VIRT_FLASH,
VIRT_DRAM,
VIRT_PCIE_MMIO,
VIRT_PCIE_PIO,
VIRT_PCIE_ECAM
};
enum {
UART0_IRQ = 10,
RTC_IRQ = 11,
VIRTIO_IRQ = 1, /* 1 to 8 */
VIRTIO_COUNT = 8,
PCIE_IRQ = 0x20, /* 32 to 35 */
VIRTIO_NDEV = 0x35 /* Arbitrary maximum number of interrupts */
};
#define VIRT_IRQCHIP_IPI_MSI 1
#define VIRT_IRQCHIP_NUM_MSIS 255
#define VIRT_IRQCHIP_NUM_SOURCES VIRTIO_NDEV
#define VIRT_IRQCHIP_NUM_PRIO_BITS 3
#define VIRT_IRQCHIP_MAX_GUESTS_BITS 3
#define VIRT_IRQCHIP_MAX_GUESTS ((1U << VIRT_IRQCHIP_MAX_GUESTS_BITS) - 1U)
#define VIRT_PLIC_PRIORITY_BASE 0x04
#define VIRT_PLIC_PENDING_BASE 0x1000
#define VIRT_PLIC_ENABLE_BASE 0x2000
#define VIRT_PLIC_ENABLE_STRIDE 0x80
#define VIRT_PLIC_CONTEXT_BASE 0x200000
#define VIRT_PLIC_CONTEXT_STRIDE 0x1000
#define VIRT_PLIC_SIZE(__num_context) \
(VIRT_PLIC_CONTEXT_BASE + (__num_context) * VIRT_PLIC_CONTEXT_STRIDE)
#define FDT_PCI_ADDR_CELLS 3
#define FDT_PCI_INT_CELLS 1
#define FDT_PLIC_INT_CELLS 1
#define FDT_APLIC_INT_CELLS 2
#define FDT_IMSIC_INT_CELLS 0
#define FDT_MAX_INT_CELLS 2
#define FDT_MAX_INT_MAP_WIDTH (FDT_PCI_ADDR_CELLS + FDT_PCI_INT_CELLS + \
1 + FDT_MAX_INT_CELLS)
#define FDT_PLIC_INT_MAP_WIDTH (FDT_PCI_ADDR_CELLS + FDT_PCI_INT_CELLS + \
1 + FDT_PLIC_INT_CELLS)
#define FDT_APLIC_INT_MAP_WIDTH (FDT_PCI_ADDR_CELLS + FDT_PCI_INT_CELLS + \
1 + FDT_APLIC_INT_CELLS)
#endif
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