diff options
| author | Anup Patel <anup.patel@wdc.com> | 2022-02-20 14:25:22 +0530 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2022-03-03 13:14:50 +1000 |
| commit | e6faee65855bf6d2ee480c5515f6d157c3229a38 (patch) | |
| tree | 475ec5ae1e6b2d9921531ab705ca326d71c1bfc9 /include/hw/riscv/virt.h | |
| parent | 90f9e35b7895b32a451df82c773d95faba910f49 (diff) | |
hw/riscv: virt: Add optional AIA APLIC support to virt machine
We extend virt machine to emulate AIA APLIC devices only when
"aia=aplic" parameter is passed along with machine name in QEMU
command-line. When "aia=none" or not specified then we fallback
to original PLIC device emulation.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220220085526.808674-2-anup@brainfault.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'include/hw/riscv/virt.h')
| -rw-r--r-- | include/hw/riscv/virt.h | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/include/hw/riscv/virt.h b/include/hw/riscv/virt.h index 6e9f61ccd9..47706b456d 100644 --- a/include/hw/riscv/virt.h +++ b/include/hw/riscv/virt.h @@ -32,18 +32,24 @@ 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, +} RISCVVirtAIAType; + struct RISCVVirtState { /*< private >*/ MachineState parent; /*< public >*/ RISCVHartArrayState soc[VIRT_SOCKETS_MAX]; - DeviceState *plic[VIRT_SOCKETS_MAX]; + DeviceState *irqchip[VIRT_SOCKETS_MAX]; PFlashCFI01 *flash[2]; FWCfgState *fw_cfg; int fdt_size; bool have_aclint; + RISCVVirtAIAType aia_type; }; enum { @@ -54,6 +60,8 @@ enum { VIRT_CLINT, VIRT_ACLINT_SSWI, VIRT_PLIC, + VIRT_APLIC_M, + VIRT_APLIC_S, VIRT_UART0, VIRT_VIRTIO, VIRT_FW_CFG, @@ -73,8 +81,9 @@ enum { VIRTIO_NDEV = 0x35 /* Arbitrary maximum number of interrupts */ }; -#define VIRT_PLIC_NUM_SOURCES 127 -#define VIRT_PLIC_NUM_PRIORITIES 7 +#define VIRT_IRQCHIP_NUM_SOURCES 127 +#define VIRT_IRQCHIP_NUM_PRIO_BITS 3 + #define VIRT_PLIC_PRIORITY_BASE 0x04 #define VIRT_PLIC_PENDING_BASE 0x1000 #define VIRT_PLIC_ENABLE_BASE 0x2000 @@ -86,9 +95,14 @@ enum { #define FDT_PCI_ADDR_CELLS 3 #define FDT_PCI_INT_CELLS 1 -#define FDT_PLIC_ADDR_CELLS 0 #define FDT_PLIC_INT_CELLS 1 -#define FDT_INT_MAP_WIDTH (FDT_PCI_ADDR_CELLS + FDT_PCI_INT_CELLS + 1 + \ - FDT_PLIC_ADDR_CELLS + FDT_PLIC_INT_CELLS) +#define FDT_APLIC_INT_CELLS 2 +#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 |